KR19990023549A - Graft Tissue Inserts to Promote Gum Development - Google Patents

Abstract

The present invention relates to a connective graft tissue insert that promotes the development of gums after being inserted into the mother of transplanted tissue, the connecting member having a cervical end for insertion into the mother, a cap at the coronal end of the connecting member, the species of the connecting member. A device for preventing relative movement of the cap in the direction of the radial side of the connecting member when a force acts on the cap, and an anti-rotation device for preventing rotation of the cap relative to the connecting member about the longitudinal axis of the connecting member. And the cap is arranged to be movable relative to the connecting member in the direction of the coronal end of the connecting member along the longitudinal direction of the connecting member, and the anti-rotation device is adapted to rotate the longitudinal axis of the connecting member when the cap is thus moved. It relates to a gum growth promoting connective tissue insert, characterized in that to prevent rotational movement of the cap with respect to the connecting member as the center.

Description

Graft Tissue Inserts to Promote Gum Development

The present invention relates to inserts that are inserted into connective tissue, particularly implant tissue that is introduced into the jaw region for fixation of dentures.

After a loss of teeth, often fixed jaw bones not only shrink, but also the shape and volume of the gums. When a scar is formed, in most cases the denseness of the connective tissue of the lower epithelium is reduced, and the boundary between the free and fixed mucosa is displaced. In addition, the loss of bone in adjacent teeth and the loss of artery supplying blood cause a total or partial loss of the gingiva towards the defect, or the gingiva moving toward the root tip. Such and other consequences of the loss of one or more teeth make it difficult for functional recovery, particularly cosmetic recovery, of patients wearing dentures supported by transplanted tissue. In addition to restoring sufficient bone volume, it is optimally cosmetic to restore the gums of the natural teeth adjacent to the defect resulting from the loss of teeth to their original position, while at the same time thickening the gums in the defect zone both vertically and transversely. It is of decisive importance in obtaining the results. In that case, cosmetically and functionally satisfactory results can be achieved by one or more individual crowns supporting the transplanted tissue, accompanied by orthopedic and / or prosthetic measures as needed. .

It is an object of the present invention to provide a device which can expand the volume of gum in the region of one or more of the missing teeth and at the same time move the gingiva extension of the tooth adjacent to the defect towards the crown of the tooth.

According to the present invention, such an object is a connective graft insert which promotes the development of the gums after being inserted into the mother of the graft tissue, the one-piece or multi-part connecting member having a cervical end for insertion into the mother, A cap at the coronal end of the connecting member, an apparatus for preventing relative movement of the cap in the longitudinal direction of the connecting member when a force acts on the cap, and about the longitudinal axis of the connecting member An anti-rotation device for preventing rotational movement of the cap relative to the connecting member, the cap being arranged to be movable relative to the connecting member in the direction of the coronal end of the connecting member along the longitudinal direction of the connecting member, the cap being Characterized in that the anti-rotation device prevents rotational movement of the cap relative to the connecting member about the longitudinal axis of the connecting member when moved together. It is accomplished by means of bonding graft body insert for growth promotion.

However, in claiming an insert of that type, the protection scope of the present invention,

An alveolar centering flange having a shoulder that can be inserted into a hollow cylindrical ring cutout at the coronal end of the parent and joined to the coronal end direction and fitted to the coronal end edge of the parent,

One or more shape engagement elements formed in a shape engagement in the cylindrical outer wall of the centering flange subsequent to the shoulder of the insert toward the tooth and joined so as not to be rotatable to the parent by the complementary shape engagement elements of the parent,

A cylindrical guide portion which is connected to the shape engagement portion toward the tooth diameter and whose outer diameter matches the diameter of the cylindrical surface disposed on the circumferential surface of the shape engagement portion closest to the longitudinal central axis of the centering flange in the radial direction,

It is joined to the guide towards the tooth diameter and does not reach an insert having as its component a cylindrical centering portion whose outer diameter is smaller than the outer diameter of the guide portion.

Such a configuration, which is excluded from the scope of protection of the present invention, corresponds to the configuration of a spaced sleeve according to German Patent No. 195 34 979, which is referenced for better understanding.

According to the invention, the anti-rotation device may not only be force-bound, for example by means of a clamp element, but may also be shape-bound.

The present invention may be provided at the coronal end of the cap with a device for fixing an actuating tool, for example a lever or screwdriver.

According to the invention, the cap can be coupled to the connection member by means of an engagement fixation device, which engages the engagement fixation tongue in one part with the engagement teeth of the other parts arranged in a row extending in the longitudinal direction of the connection member. In that case, the engagement fixation device can act to block the movement of the connecting member to almost one side in the direction of the diameter side end.

In such a configuration, in particular, two rows of interlocking fastening teeth may be formed in the cap or the connecting member that are opposed to each other in diameter and extend in the nearly longitudinal direction of the connecting member.

In such a configuration, a lever detachably mounted to the coronal end of the cap may be provided to cause the cap to move obliquely about an axis perpendicular to the longitudinal axis of the connecting member. In that case, the lever is preferably screwed into the opening of the cap.

In another configuration, the screw or pin may at least partially penetrate the cap and / or the connecting member, in which case the cap may be supported or supported by the screw, and the screw, respectively, by the connecting member, In order to prevent relative rotational movement of the cap with respect to it, a shape-locking rotation prevention device is preferably provided.

In such a configuration, the screw has a stopper surface that engages with the female threaded portion of the connecting member and that can be stopped against the toothed end of the portion of the cap extending inwardly of the connecting member by the operation of the screw.

According to the invention, the cap can be coupled to the connecting member via a linear guide that allows linear relative movement of the connecting member in the longitudinal direction.

Such a guide may have a slit extending longitudinally to the outer wall of the connecting member and a fixing element fixedly or detachably coupled to the cap and guided along the slit while engaged in the slit. Such a fastening element can be formed as a separate element which is integral with the cap or inserted into the gap of the cap, in which case the contour contour of the fastening element can coincide with the contour contour of the cap.

According to the invention, the outer wall of the connecting member has a slit, in which the tongue portion of the cap, which can at least partially extend into the interior of the connecting member and which can be formed elastically, is engaged. However, such tongues can basically be installed to extend from the outside into the slit.

In another configuration, the screw is coupled to the female threaded portion of the cap and can be supported by a stopper element in the interior space of the connecting member.

In another configuration, the cap may have a contact surface at its coronal end with a contact surface with gum tissue extending substantially perpendicular to the longitudinal axis of the connecting member. The cap may have a hole in the coronal end face which may be installed for the carrying in of the assembly tool or the operating tool or which may be installed for example to pass through a screwdriver that tightens a set screw or adjustment screw.

Preferably, the cap consists entirely or substantially of titanium. Basically, other materials suitable for living bodies, in particular ceramics, may also be used. In a preferred embodiment, the cap may be formed of a rough surface structure that realizes the attachment of the connective tissue of the gums or creates an environment favorable for such attachment, such surface structure being by, for example, a suitable coating such as titanium plasma coating or It can be obtained by an etched and / or sprayed surface.

In addition, on the surface of the cap, fibrin adhesives or other adhesives and / or proteins that promote the development of connective tissue may be used, for example in the form of suitable coatings.

In another configuration according to the invention, in order to ensure that the gums can be attached to the cap well, it protrudes laterally beyond the connecting member laterally to the crown end of the cap and preferably avoids blood such as collagen or absorbable polymer. An adhesive surface made of an absorbent material can be formed, which creates gum tissue for adhesion to at least the coronal end side. Such an adhesive surface may abut on the protrusion of the cap and may be fixed in a known manner, for example by means of a fastening ring which is screwed on. The adhesive side may be fully wetted with an adhesive such as fibrin adhesive or a connective tissue development promoting substance such as a protein for promoting tissue development. By such an adhesive surface, the tensile force can be applied to the gum tissue just beyond the periphery of the transplanted tissue, so that the tensile stress can be widely distributed, thereby achieving the extensive development of the gum. When such a cap is inserted, the gum is closed to the point of contact up to the cap and the adhesive surface attached thereto. When absorbent materials are used for the adhesive side, such materials are metabolized after a certain period of time. In the area of the face that promotes adhesion with the connective tissue, the connective tissue is associated with the gingiva attached to the adjacent teeth, so that the gingiva is more precisely adjacent when the cap is moved by the insert toward the coronal end of the connecting member. Can be moved towards the crown of the tooth.

In another configuration according to the invention, the connecting member may be formed of two parts: a retaining ring for insertion into the graft tissue / mother and a body element inserted into the retaining ring to receive the cap, the retaining ring A force engagement device that prevents rotational movement relative to the parent, the body element having a portion formed to prevent rotational movement of the body element relative to the stationary ring about the longitudinal axis by force engagement.

In such a configuration, in particular, the body element has a male thread for screwing into the graft tissue / mother, wherein the inner diameter of the fixation ring and the outer diameter of the body element are each reduced at least partially conical in the direction toward the alveolar end, thereby reducing the mother. The portion of the body element whose outer diameter is conically reduced when screwed in may be tensioned by the portion of the retaining ring whose inner diameter is reduced conically.

In another configuration according to the invention, the cap is provided with a shape binding device or a force binding device for preventing the cap from being unintentionally separated from the connecting member when the insert is inserted into the graft tissue / matrix, The cap is not lost. In that case, the cap may have an elastic retaining plate that propels the connecting member or element joined thereto. In particular, such retaining joining plates can be engaged in the holes of the connecting member and elastically propel the screws that are screwed into the inner wall of the holes or prevent them from moving in the longitudinal direction, while preventing the unwanted movement of the cap in the longitudinal direction. It allows for controlled movement.

In addition, the present invention is a device for promoting the growth of the gum in the region of the implantation site of the connective graft tissue, gum growth promoting device having a mother for anchoring the bone tissue and the insert for promoting the development of the gum introduced into the mother To provide. In claiming such a device, the scope of protection of the present invention is that

Hollow cylindrical ring cutout at the crown end for receiving the centering flange of the insert,

At least one shape engagement element on the inner wall of the ring cutout of the shape engagement zone of the parent, immediately subsequent to the end edge of the parent, and circumferentially acting so as to be rotatably coupled with the insert,

Ring cutout formed with a smooth circumferential wall which is joined to the shape binding zone of the parent towards the tooth and whose diameter matches the diameter of the cylindrical surface disposed on the guide face of the shape binding zone closest to the longitudinal axis of the ring cutout. Guide zone,

An apparatus for facilitating the development of the gum in the region of the implantation site of the connective tissue having a centering region of the ring cutout that is connected to the guide section of the ring cutout toward the alveolar and whose diameter is reduced compared to the guide section, and / or (Integral or multi-part) connection member for gum growth promotion insert

An alveolar centering flange having a shoulder that can be inserted into a hollow cylindrical ring cutout at the coronal end of the parent and joined to the coronal end direction and fitted to the coronal end edge of the parent,

One or more shape engagement elements formed in a shape engagement on the cylindrical outer wall of the centering flange subsequent to the shoulder of the insert and joined so that they cannot be rotated to the parent by the shape binding elements of the parent's complementary form,

A diameter of the cylindrical surface which is connected to the shape-binding part toward the tooth diameter and whose outer diameter is disposed on the circumferential surface of the shape-binding part closest to the longitudinal center axis of the centering flange in the radial direction, which corresponds to the diameter of the guide region of the parent, if necessary. Guide part matching the diameter

Gums in the region of the implantation site of the connective tissue, each of which has a cylindrical centering portion which is connected to the guide portion towards the alveolar, the outer diameter of which is smaller than the outer diameter of the guide portion, and whose outer diameter matches the inner diameter of the centering region of the parent, if necessary It does not reach the device which promotes the development of.

Such a configuration, which is excluded from the scope of protection of the present invention, corresponds to the configuration of a spaced sleeve according to German Patent No. 195 34 979, which is referenced for better understanding.

In the configuration according to the present invention, physiological phenomena are utilized that the gum tissue becomes fluid by the application of tensile stress and can be pulled along the implantation site of the transplanted tissue by the insert according to the present invention. Controlled development of the gum can be achieved by a configuration that prevents movement in the opposite direction by the blocking device while pulling the cap in the controlled manner toward the coronal end of the connecting member. By providing the anti-rotation device between the cap and the connecting member, the gum tissue rooted in the cap or above the cap is prevented from coming off when the cap is moved.

Accordingly, the present invention provides a novel method for treating a transplantation site after the introduction of the mother into the jaw bone,

-Implanting the mother into the jaw bone,

Inserting the insert according to the invention into the parent,

The gum tissue is sutured or otherwise closed to the connecting member and the cap, as necessary, to the upper side thereof,

-Treating gums,

Applying a controlled tensile stress by moving the cap relative to the connecting member in the longitudinal direction of the connecting member.

The step of applying tensile stress can be repeated as needed and according to the desired gum volume. According to an embodiment of the present invention, the method used for the movement of the cap may vary, for example, when the cap and the connecting member are engaged fixedly engaged, such as sequentially tilting or operating an adjusting screw or the like.

In the context of the present specification, the terms cervical and coronal shall be understood to mean the alignment of the connecting member or cap after insertion with the cap assembled. By longitudinal is meant the axis passing through the coronal and cervical ends.

1 is a partial cross-sectional view of a connecting member of an insert according to the invention,

2a is a cross-sectional view of a cap of an insert according to the invention,

2b shows a side view of the insert according to FIG. 2a, FIG.

3 is a cross-sectional view showing a first embodiment of the insert according to the present invention with the cap assembled;

4 is a partial cross-sectional view of the insert with the actuating tool after moving the cap toward the coronal end;

Figure 5 is a side view showing a second embodiment of the insert according to the present invention in a state in which a fixing screw for fixing the insert to the mother of the transplanted tissue,

6 shows a cross-sectional view of the insert according to FIG. 5 with an attached plan view of the coronal end;

7 is a cross-sectional view showing the transplanted tissue / parent in the insert assembled in accordance with the embodiment of Figure 5 and 6,

8 is a side view of a connecting member according to a third embodiment of the present invention;

9 is a sectional view of the connecting member shown in FIG. 8;

10A is a partial sectional view showing an insert according to the third embodiment in a basic state;

10B is a partial cross-sectional view of an insert according to a third embodiment of the present invention after the cap is moved in the longitudinal direction;

11 is a sectional view showing a fourth embodiment of an insert according to the invention with a two-part connecting member;

12A is a plan view of the clamp ring used in the fourth embodiment,

12b is a partial cross-sectional side view of the clamp ring according to FIG. 12a, FIG.

12c shows a bottom view of the clamp ring according to FIG. 12a.

Explanation of symbols for the main parts of the drawings

101, 201, 306, 307: connecting member 2, 102, 202, 302: cap

18: engagement fixing teeth 31a, 31b: engagement fixing tongue

34: contact surface 37: operating tool

105, 205, 305: screw 139, 227, 327: female thread part

240,340: stopper surface 306: retaining ring

307: body element 311, 319: force-bound rotation prevention device

315: male thread portion 350: holding plate

360: adhesive side

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail with a more specific configuration.

According to a first embodiment of the invention shown in FIGS. 1 to 4, the insert according to the invention comprises a connecting member 1 and a cap 2. The connecting member 1 is provided for insertion into the graft tissue / parent (not shown), and connects the shoulder 11 for contact with the coronal end of the parent and the shape binding portion 13 connected to the cervical direction. Equipped. The shape binding element 13 is provided with a shape binding element to engage the complementary shape binding element of the implanted tissue / parent to prevent rotation of the connecting member about the parent (not shown). For that purpose, any shape binding element or shape binding bond known for binding of the parent and the structure (protruding junction structure) in connective grafts, in particular dental grafts, can be used, for example in DE 40 28 855 C2. The coupling method as disclosed, and the imbus type coupling method in which the shape binding portion 13 is formed in a polygon, etc. may be used. Similarly, the modification may be a device for preventing rotation of the mother member instead of the shape binding element. It can be provided.

The connecting member 1 has an almost cylindrical engagement fixation zone 16 formed on the crown side of the shoulder 11 with two rows of engagement fastening teeth diametrically opposed to each other, such engagement fastening tooth rows being indicated by reference numeral 17a. , 17b) and the teeth themselves are indicated by reference numeral 18.

The connecting member 1 has a through hole 19 having a larger diameter 21a at the coronal end and a smaller diameter 21b at the alveolar end, between the two areas. It is provided with a shoulder 23 for supporting the head of a fastening screw (not shown) which fixes the connecting member in the graft tissue / mother.

The attached cap 2 is formed in a substantially rotationally symmetrical form. The cap 2 has two resilient engagement fastening tongues 31a, 31b on its side for engaging the corresponding engagement fastening tooth rows 17a, 17b (see FIGS. 3 and 4), the engagement The positions of the stationary tongues 31a and 31b coincide with the positions of the engagement tooth rows 17a and 17b of the connecting member with respect to the circumferential direction. The cap 2 has a closed lid at its crown end, or as shown in FIG. 2A, an opening 33 is formed and is disposed substantially perpendicular to the longitudinal axis and a thread for mounting the actuating tool 37. It may be provided at its coronal end with a closed lid having a contact surface 34 which may be made of gum tissue.

The connecting member 1 has at least one flat outer surface 40 at its engagement fixing zone 16, while the cap 2 has at least one flat inner surface 42. The relative position of the flat outer surface 40 with respect to each other and the engagement tooth rows 17a, 17b are determined by the relative position of the flat inner surface 42 with respect to each other and with respect to the engagement fixing tongues 31a, 31b. Correspondingly, rotation of the cap 2 relative to the connecting member 1 is prevented by the flat inner surface 42 in the assembled state aligned with the flat outer surface 40.

3 and 4 show the connecting member 1 with the cap 2 assembled. As can be seen schematically from such a figure, the engagement tongues 31a, 31b engage respective respective engagement lock teeth rows 17a, 17b of the connecting member, in which case the flanks of the engagement lock teeth 18. The movement of the cap 2 in the direction of the cervical end in a known manner is prevented by the flanks extending almost perpendicular to the longitudinal axis of the connecting member 1, while on the other hand even when a relatively small tension is applied It is formed to be movable so that a predominant direction in the coronal end direction of the connecting member 1 is given. At the same time, the rotation of the cap 2 relative to the connecting member 1 is prevented by the faces 40, 42 facing each other.

The controlled upward movement of the cap 2, which is moved from the position shown schematically in FIG. 3 to the position shown in FIG. 4, causes the cap to move its longitudinal end, ie the longitudinal axis of the connecting member 1, in the region of the edge 36. After the engagement fixing tongue portion 31a is removed by pressing toward the engagement fixing tongue portion 31a to almost one side along the direction of (A), for example, by again engaging and fixing the engagement fixing tooth 18 away from the crown side. In this case, the cap is inclined by an angle of about 3 ° to 5 °. Subsequently, such a process is repeated from the other side by pressing the cap to the opposite side, that is, to the engagement fixing tongue 31b side, whereby the inclined movement in the opposite direction is performed. In carrying out such an alternating number of winding inclined movements, the cap 2 is raised along the engagement fixing surfaces 17a, 17b toward the coronal end of the connecting member 1.

Usage of the inserts shown in FIGS. 1 to 4 is as follows. First, the graft tissue / mother of conventional construction type is inserted into the jaw bone in a known manner. Next, the connecting member 1 is inserted into the mother body and fixed by a fixing screw (not shown) in a known manner, in which case the shape of the connecting member 1 that engages the complementary shape binding element of the mother body. The binding element realizes the anti-rotation function. In doing so, the cap 2 is engaged with the engagement fixing teeth adjacent the shoulder 11 as the engagement fixing tongues 31a and 31b are shown in FIG. 3 so that the contact surface 34 is the teeth of the connecting member 1. It is preferable to fit in advance on the connecting member 1 in such a way that it is arranged at very small intervals on top of the viewing edge. If the engagement fixing teeth 18 are formed such that the movement of the cap in the direction toward the dental end of the connecting member is possible under the use of a greater force than the movement in the opposite direction, the cap 2 is removed after insertion and fixing of the connecting member. It can also be fitted. The gum is then sutured in a known manner so as to contact the side of the insert, in particular the contact surface 34 on the upper side of the cap 2.

Next, after treatment, the gums are inclined to adhere to the longitudinal axis of the connecting member 1 by the lateral pressure at the coronal end of the cap 2, as described above, and then engage thereon. Secure the tongue by engaging the next engagement tooth in the crown direction. Such a process is repeated for the other side as necessary. That is, such a process is frequently caused by the pressure alternating to the opposite sides of the cap until the cap 2 is moved in the longitudinal direction of the connecting member 1 in the coronal end direction of the connecting member 1 as desired. Is repeated. Thereby, tensile stresses are generated in the gums covering the cap 2 and in particular the contact surface 34. Since the gums are stimulated for development in that way, the gum volume at the implantation site expands. The movement of the cap 2 and the process of creating stress in the gums can be repeated several times until the desired gum volume or the maximum that can be reached is obtained. Next, the insert is removed and the corresponding structural element typically introduced to support the denture is inserted into the graft tissue / maternal.

Alternatively, after the gums have been treated, the gums can be limitedly opened and screwed into the opening 33 an actuating tool 37 which acts as a lever capable of producing the aforementioned tilt movement. (See Figure 4). As long as the tilting movement of the cap 2 can be produced in a controlled manner, the actuating tool may be coupled to the cap 2 in other ways, such as for example clamping or bayonet coupling, instead of screwing.

5 to 7 show a second embodiment of the present invention. In such an embodiment, the insert comprises a connecting member 101, a cap 102, a support element formed as a fixing screw 103 in the present embodiment, an adjusting screw 105 and a fixing element 107.

The connecting member is formed in the same manner as in the first embodiment in that it is anchored to the mother body indicated by reference numeral 108 in FIG. 7. That is, the connecting member has a shoulder 111 for contacting on the crown side edge of the parent body 108 and a shape tie portion 113 having a shape engagement element engaged with the complementary shape engagement element of the parent body 108. Equipped. The connecting member 101 is different from the first embodiment in the configuration of the engaging portion 116 which is connected to the shoulder 111 toward the crown. The connecting member 101 has a smooth outer wall 121 in which a slit 123 extending in the longitudinal direction of the connecting member is formed in the region. The cap 102 has an annular groove 131, the outer wall 121 of the connecting member 101 is engaged with the annular groove 131, whereby the cap 102 and the wall 121 are engaged to interfere, The cap 102 extends partially into the interior of the connection member 101 such that it can be moved relative to the connection member 101 in the longitudinal direction of the connection member 101.

The shape binding element 107 is introduced into the slit 123 through the corresponding hole 133 (see FIG. 5) of the cap to prevent rotation, in which case the contour of the shape binding element 107 is shown in FIGS. 6 and FIG. As can be seen from Fig. 7, it conforms to the shape of the cap, so that the gums can be evenly contacted or rooted in all directions.

The cap 102 has a central hole 137 having a female threaded portion 139 and extending in the longitudinal direction. An adjustment screw 105 is screwed into the hole 137, the dimensions of which adjustment screw 105 can be supported on the set screw 103 in the assembled state (see FIG. 7) and the set screw 103 It can be determined to be rotated relative to). The cap 102 can be linearly moved longitudinally from or toward the end of the cervical end of the connecting member 101 by the rotation of the screw 105, in which case the shape binding element 107 is connected to the connecting member ( This ensures that no rotational movement of the cap 102 relative to 101 occurs.

In use, as in the first embodiment, after inserting the mother body 108 into the bone, the connecting member 101 is inserted into the mother body 108 and fixed by the screw 103. Before inserting the connecting member 101 into the mother (in this case, the screw 105 for tightening the fixing screw 103 should be removed) or after tightening the fixing screw 103 to fix the cap 102. It fits into the connecting member 101 together with the binding element 107 and prevents the rotation of the cap 102 by the shape binding element 107 and the slit 123. Subsequently, the cap 102 is guided in the longitudinal direction of the connecting member by the outer wall 121 and the groove 131 of the connecting member 101, and the screw 105 is turned until it is mounted on the fixing screw 103. Tighten. Next, the gum is closed in the form of covering to the upper side of the cap 102 in particular. After the gums have been treated, the gums are opened to such an extent that entry and exit into the hole 137 and the adjusting screw 105 is possible. The actuation of the screw 105 then presses the cap 102 upwards (see FIG. 7) to create stresses that promote growth in the gum tissue, which causes expansion of the gum volume. In that case, the female screw portion 139 engaged with the male screw portion of the screw prevents the movement of the cap in the direction of the tooth diameter side of the connecting member. Such a process is repeated as many times as needed until the desired gum volume is obtained.

A third embodiment of the insert according to the invention is shown in FIGS. 8 to 10. In such illustrated embodiment, the insert consists of a connecting member 201, a cap 202 and an adjustment screw 205. The connecting member 201 also has a shoulder 211 for supporting at the coronal edge of the parent, in which the screwing of the connecting member 20 with the graft tissue / parent by the male threaded portion 213 of the connecting member is carried out. Is done. Correspondingly, in contrast to the embodiment described above, the fastening screws for securing the shape fastening element and the insert to the mother body are omitted. The connecting member 201 has an engaging portion 216 in the upper region of the shoulder 211, which is provided with a smooth side wall 221 as in the second embodiment, which extends in the longitudinal direction. The slits 223 are formed. The slit 223 extends beyond the shoulder 211 toward the cervical diameter in the illustrated embodiment, but may be formed shorter than that. In addition, the coupling portion is provided with a slit 224 for a screw driver which is opposed to the slit 223 in diameter.

The connecting member 201 has a hole 225 therein, such a hole 225 having a large diameter portion 226a extending to the coronal end and a small diameter portion 226b connected to the large diameter portion 226a toward the tooth diameter. And a female screw portion 227 is formed in the small diameter portion 226b, and a protrusion 228 is formed between the large diameter portion 226a and the small diameter portion 226b. The cap 202 has an annular groove 230 that engages and interferes with the side wall 221 of the connecting member 201. An inner side of the annular groove 230 is provided with an elastic retaining plate 231 whose width coincides with the width of the slit 232 and is curved outward in the radial direction. When the cap 202 is fitted on the connecting member 201, the retaining bonding plate 231 prevents the rotation of the cap 202 relative to the connecting member 201 as soon as it is fitted to the slit 223.

The adjusting screw 205 has a male threaded portion and an annular protrusion 240 corresponding to the female threaded portion 227 so that the annular protrusion 240 has the coronal end portion of the connecting member 201 when the screw 205 is fully tightened by turning the screw 205. Direction on the projection 228 in front of the cervical end of the slit 223, preferably between the two portions 226a, 226b of the slit, or also the cap in the direction of the coronal end of the connecting member 201. Can be moved to a position in front of the 202, so that the pubic side end of the slit 223 or the portion of the cap 202 extending into the hole 225 extends into the protrusion 240 and the connecting member. It lies between the coronal end part of 201. Thus, the protrusion 240 can be moved from such a position by the operation of the screw 205 to the stopper of the lower edge of the portion of the cap 202 which extends into the interior of the connecting member 201, thereby removing the screw. In further actuation, the cap 202 is moved in the same direction toward the coronal end of the connecting member 201.

In the simplest case, the protrusion 240 may be a screw head; However, for better handling the shaft 242 with polygonal cuts for the operation of the screw 205 may extend on top of the protrusion 240.

The insert according to the third embodiment of the present invention described above is used in the same manner as described for the second embodiment. That is, the implant is inserted after the mother is implanted, the gum is treated and the gum is opened in the region of the screw 205 and then the cap 202 is operated in the longitudinal direction of the connecting member 201 by the operation of the screw 205. Move to create the desired growth promoting stress in the gum tissue.

In the embodiment described above, the male threaded portion 213 ensures prevention of rotation of the connecting member 201 and thus the cap 202 relative to the mother when fully tightened and secured in the corresponding female threaded portion of the graft / parent. In principle, however, also in the third embodiment, the connecting member 201 is also similar to the first and second embodiments, i.e., through the shape-binding element and the connecting member 201 to secure the connecting member to the mother body. It may be formed in the form having a guide for fixing screws. Conversely, screw connections between the connecting member and the graft tissue / parent can be formed according to other embodiments as needed. Similarly, other forms of binding may be used, which are known for the binding of the graft tissue / parent and the structural elements.

In the above-described embodiments, the connecting members are each formed integrally, but the connecting member according to the present invention may be composed of a plurality of elements. A feasible solution in such a multi-part configuration is shown as a fourth embodiment in FIGS. 11 and 12A, 12B and 12C.

According to the fourth embodiment, the insert according to the invention consists of the connecting member 301, the cap 302 and the adjusting screw 305 similarly to the third embodiment, but only the connecting member 301 is a clamp ring 306 and body element 307. The clamp ring 306 is inserted into the hole of the graft tissue / matrix and is held in the site formed in the hole of the graft tissue / matrix by appropriate means described below in detail. The inner diameter of the clamp ring 306 is reduced conically toward the end of the alveolar side, and the clamp ring 306 is provided with a device that forcefully prevents rotation about the implanted tissue / maternal.

Similar to the case of the third embodiment described above with reference to FIGS. 8 to 10, the body element 307 is in the inserted state a shoulder 313 and a graft tissue / to contact the coronal edges of the graft tissue / parent. A male thread portion 315 is formed at the end of the dental neck side to engage the corresponding female thread portion of the mother body. In addition, the body element 307 has a conical portion 317 at the bottom of the shoulder 313 whose outer diameter is reduced in the radially end direction, the maximum outer diameter of such conical portion 317 being the clamp ring 307. Is greater than the minimum inner diameter of. The position of the conical portion 317 relative to the shoulder 313 approximately coincides with the position of the clamp ring 307 relative to the coronal edge (not shown) of the graft tissue / parent in the inserted state, and thus the body element. 306 is screwed into the graft tissue / parent by male threaded portion 315 and conical portion 317 is concentrically placed in the region of clamp ring 306. In that case, the size of the outer diameter of the conical portion 317 is such that the conical portion 317 is clamped into the clamp ring 306 upon screwing of the body element 307 so that Force-bound rotation prevention is caused.

As shown in FIGS. 12A and 12B, the clamp ring 306 has a slit 318 to form a plurality of clamp tongues 319 that are urged outwards upon threading of the body element 307. In that case, the cone tongue 317 and the clamp tongue 319 are anchored by the clamp tongue 319 by the cone 317 when the body element 307 is screwed into the female thread of the graft / parent. Since it is formed to be pressed against the inner wall of the hole of the graft tissue / parent in the form of, the force binding rotation prevention by the clamp tongue 319 is made. In that way, rotation prevention of the connecting member relative to the graft tissue / matrix can be realized better than in the third embodiment (see FIGS. 10A and 10B).

The clamp tongue 319 is pre-curved radially outward so that when the clamp ring 306 is inserted into the graft tissue / matrix, the clamp tongue is clamped into the inner hole of the graft tissue / matrix to secure the clamp ring 306. Can be. Alternatively or in a complementary manner, the graft tissue / matrix may have a protrusion on which the clamp ring is mounted after inserting the clamp ring into the hole of the graft tissue / mother. Basically, the clamp tongue may be omitted. In that case, the clamp ring is formed into a conical shape in which the maximum diameter is larger than the diameter of the hole of the transplanted tissue / mother to insert the clamp ring.

The insert according to the fourth embodiment is otherwise configured similarly to the insert according to the third embodiment. As in the third embodiment, the connecting member 301, more precisely the body element 306, has a smooth sidewall with an additional slit 324 formed in the diametrically opposed and longitudinally extending slit 323. A coupling portion 321 is provided in the upper region of the shoulder 313 and has a hole in which the female thread portion 327 and the protrusion 328 are formed.

As in the third embodiment, the cap 302 has an annular groove 330 and a retaining bonding plate 331 that engages in the slit 323. The adjusting screw 305 is the same as the adjusting screw of the third embodiment, and has an annular projection 340 and a shaft 342. Such protrusion 340 may be moved to abut against the cervical side edge 345 of the cap 302 by the rotation of the screw 305. In the same manner as in the third embodiment, the cap 302, the protrusion 340, the holding bonding plate 331 and the slit 323 are interlocked.

In addition, in the embodiment shown in Fig. 11, the second holding bonding plate 350, which is longer than the length of the second slit 324 and is curved outwardly, is provided, and the holding bonding plate 350 is formed of a cap ( When 302 is in its deepest position, it is pressed against the inner side of the hole of body element 307. Thereby, the movement of the cap 302 in the longitudinal direction is prevented in such a position, thereby preventing the cap 302 from being separated from the connecting member 301 when inserting the insert according to the present invention into the graft tissue / matrix. do. In that case, the magnitude of the clamping force of the retaining joining plate 350 is such that the cap 302 prevents the cap 302 from escaping from the body element 307 upon insertion while the coronal end of the body element 307 is provided by the adjusting screw 305. It is determined so that it can be made without further adjustment of the movement of the cap in the direction.

In the preferred variant embodiment, not shown, the retaining plate 350 is pressed against the shaft 342 of the adjustment screw 305 so that the longitudinal movement and insertion of the cap 302 relative to the adjustment screw 305 is achieved. The cap 302 of the seam is bent inward rather than outward so as to prevent falling off. If desired, a number of retaining laminates of that type may be installed to prevent longitudinal movement of the cap 302. Of course, a retaining laminate of that type for fixing the cap can also be installed in other embodiments of the present invention.

11 also shows an adhesive surface 360, which may be made of, for example, collagen or an absorbent polymer, as described above. Such an adhesive surface is brought into contact with the projection 362 of the cap and by a clamp ring 364 in which a threaded portion 365 is formed which is screwed to the cap 302 or by other suitable means such as, for example, an elastic U-shaped link. It is fixed. Of course, such an adhesive surface as shown in FIG. 11 can also be used in other embodiments of the present invention.

When inserting the insert according to the fourth embodiment into the implanted tissue / matrix, the clamp ring 306 is first inserted into the mother. Such steps may be performed in advance prior to the transplantation of the mother. The body element 307 is then screwed into the matrix, in which case the cone 317 is clamped into the clamp ring 306. Otherwise proceed as described above in connection with the third embodiment.

As mentioned above, the components of the various embodiments may be combined without restriction. For example, engagement fixed engagement may also be used between the cap and the connection member in embodiments in which the cap is moved by the operation of the screw. Likewise, the fasteners described in connection with the individual embodiments can be used in other embodiments.

The features of the invention disclosed in the foregoing detailed description, claims, and the accompanying drawings may be implemented individually or in any combination to realize various embodiments of the invention.

Graft development insert for promoting gum growth according to the present invention creates a tensile stress on the gum tissue to impart fluidity, thereby allowing the gum tissue to be pulled along the implantation site of the transplanted tissue by the insert according to the invention . In other words, the gum is controlled to a desired volume and developed by a configuration in which the cap is raised in a controlled manner toward the coronal end portion of the connecting member to prevent movement in the opposite direction by the blocking device. In addition, by providing the anti-rotation device between the cap and the connecting member, the gum tissue rooted on or above the cap is removed when the cap is moved to generate tensile stress. .

Claims (18)

A connective graft insert that promotes the development of gums after being inserted into the mother of transplanted tissue, Cap (2; 102; 202) at the coronal end of the connecting member (1; 101; 201; 306, 307), connecting member (1; 101; 201; 306, 307) having a cervical end for insertion into the mother body; 302, when the force acts on the cap (2; 102; 202; 302) in the longitudinal direction of the connecting member (1; 101; 201; 306, 307) of the connecting member (1; 101; 201; 306, 307); Devices 17, 31; 105, 139; 205; 305, and connecting members 1; 101; 201; 306, 307 for preventing relative movement of the caps 2; 102; 202; 302 toward the alveolar end direction Anti-rotation device 17, 31; 107, 123 preventing rotational movement of the cap 2; 102; 202; 302 relative to the connecting member 1; 101; 201; 306, 307 about the longitudinal axis of 223, 231; 323, 331, the cap (2; 102; 202; 302) is connected to the connecting member along the longitudinal direction A of the connecting member (1; 101; 201; 306, 307); (1; 101; 201; 306, 307) disposed so as to be movable relative to the connecting member (1; 101; 201; 306, 307) in the coronal end direction; When the 02; 202; 302 is moved as such, the anti-rotation device 17, 31; 107, 123; 223, 231; 323, 331 is connected to the connecting member 1; 101; 201; 306, 307. Promotes gum development characterized by preventing rotational movement of the cap (2; 102; 202; 302) about the connecting member (1; 101; 201; 306, 307) about the longitudinal axis (A) For connective graft tissue inserts. The method of claim 1, A device for promoting gum growth connective tissue, characterized in that a device for fixing the actuating tool 37 is formed at the coronal end of the cap. The method according to claim 1 or 2, The cap 2 fits the engagement teeth 18 arranged in the other part in a line 17a, 17b extending in the longitudinal direction of the connecting member to engage the engagement fixing tongues 31a, 31b in one part. A gum growth promoting connective tissue insert, characterized in that it is coupled to the connecting member by means of a bite engagement locking device (17, 31). The method of claim 3, wherein Characterized in that the two rows of engagement fixing teeth 17a, 17b are formed in the cap 2 or the connecting member 1 which are opposed to each other in diameter and extend almost in the longitudinal direction of the connecting member 1. A connective graft tissue insert for promoting gum development. The method according to claim 3 or 4, A connective graft for promoting gum development, characterized in that a lever 37 is detachably mounted at the crown end of the cap to cause tilting of the cap about an axis perpendicular to the longitudinal axis of the connecting member. insertion. The method according to any one of claims 1 to 5, The screw 105; 205; 305 penetrates at least partially through the cap 102; 202; 302 and / or the connecting member 102; 201; 306, 307, the cap is connected to the screw, and the screw is connected A gum growth promoting connective tissue insert, characterized in that it is adjusted to be supported on each member. The method of claim 6, The screws 205 and 305 mesh with the female threaded portions 227 and 327 of the connecting members 201 and 306 and 307 and extend into the connecting members 201 and 306 and 307 by the operation of the screws. And a stopper surface (240; 340) that can be stopped against the cervical end of the portion of the cap (202; 302). The method of claim 6, The screw 105 is coupled to the female threaded portion 139 of the cap 102 and is supported by a stopper element 103 disposed in the inner space of the connecting member 101. Tissue inserts. The method according to any one of claims 1 to 8, The caps 102; 202; 302 are linear guides 107, 123; 223, 231; 323, 331 which allow linear relative movement of the connecting member 101; 201; 306, 307 in the longitudinal direction A. A joint implant tissue for promoting gum development, characterized in that coupled to the connecting member (101; 201; 306, 307). The method of claim 9, The guide is coupled to the slits 123; 223; 323 and the caps 102; 202; 302 extending in the longitudinal direction A on the outer walls of the connecting members 101; 201; 306, 307 and engaged in the slits. A gum growth promoting connective tissue insert, characterized in that it comprises a securing element 107 guided along the slit. The method according to claim 9 or 10, The outer wall of the connecting member 201; 306, 307 has slits 223; 323 in the longitudinal direction, and into the slit 223; 323 at least in the interior of the connecting member 201; 306, 307. A gum growth promoting connective tissue insert, characterized in that the tongue portion (231; 331) of the partially extended cap is extended. The method according to any one of claims 1 to 11, The cap (2; 102; 202; 302) has a contact surface (34) at its coronal end with a contact surface (34) with the gum tissue extending substantially perpendicular to the longitudinal axis of the connecting member. Tissue inserts. The method according to any one of claims 1 to 12, The cap implant (2; 102; 202; 302) is characterized in that the adhesive surface (360) protruding beyond the circumference of the connecting member and creating an adhesive contact with the gum tissue is formed. The method according to any one of claims 1 to 13, The cap 302 has a device for promoting gum development, characterized in that it comprises a device (350) for force-binding to prevent separation from the connecting member (301) when inserted into the graft tissue / parent. The method of claim 14, The cap (302) is a gum growth promoting connective tissue insert, characterized in that it comprises a retaining bonding plate (350) for propelling the connecting member (101) or element (305) coupled thereto. The method according to any one of claims 1 to 15, The connecting member 301 is formed by a retaining ring 306 for insertion into a graft / parent and a body element inserted into the retaining ring 306 to receive the cap 302. 306 has a force engagement device 311, 319 that prevents rotational movement relative to the graft tissue / matrix, the body element 307 being the body element relative to the fixation ring 306 about a longitudinal axis. A gum growth promoting connective tissue insert, characterized in that it has a portion 317 formed to prevent rotational movement of the 307 by force engagement. The method of claim 16, The body element 307 has a male thread portion 315 for screwing into the graft tissue / mother, wherein an inner diameter of the fixation ring 306 and an outer diameter of the body element 307 are at least partially in the direction of the alveolar side. And the portion of the body element 307 whose outer diameter is reduced to conical shape when each screw is reduced to a conical shape is clamped to a portion of the fixing ring 306 whose inner diameter is reduced to conical shape. Promotional connective tissue insert. 18. Apparatus for facilitating the development of gums at the site of implantation of connective transplant tissue, comprising a mother body for anchoring to bone material and an insert according to any one of claims 1 to 17 introduced into the mother body. .