US3386169A - Method and means for attaching teeth and the like to the maxillar bone - Google Patents

Method and means for attaching teeth and the like to the maxillar bone Download PDF

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US3386169A
US3386169A US253113A US25311363A US3386169A US 3386169 A US3386169 A US 3386169A US 253113 A US253113 A US 253113A US 25311363 A US25311363 A US 25311363A US 3386169 A US3386169 A US 3386169A
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bone
tooth
post
anchoring
dental
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Scialom Jacques
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Individual
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Priority claimed from FR886088A external-priority patent/FR1320212A/fr
Priority claimed from FR889782A external-priority patent/FR81714E/fr
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0089—Implanting tools or instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0028—Pins, needles; Head structures therefor

Definitions

  • the support member consists generally in an anchoring head and an extension which is threaded or of helicoidal form and of a comparatively large diameter of the order of 4 to 5 mm.
  • These extensions cannot be introduced into the bone except in vertical direction.
  • it is impossible to insert these support members in an inclined direction because this would entail the risk that they would reach into delicate interior portions (the maxillary sinus or the dental canal of the lower jaw bone) or they may even penetrate toward the outside and reach the mucous membrane.
  • the length thereof is limited due to the presence of the maxillary sinus or of the dental canal.
  • the invention includes a method of attaching tooth means with the aid of anchoring post means to a maxillary bone, comprising the steps of drilling substantially from the center of the surface area of the maxillary bone where the tooth means is to be attached at least one channel of predetermined diameter into the maxillary bone in a direction inclined at an acute angle of at least against the perpendicular on said surface area; fixing in said channel an anchoring post means in such a position that an end portion thereof projects outwardly from said surface area; and attaching a tooth means to said outwardly projecting portion of said anchoring post means.
  • a fastening arrangement for attaching tooth means to a maxillary bone comprising, in combination, a tooth member having a lower surface formed to fit the surface area of the maxillary bone where the tooth member is to be attached thereto and having a recess in said lower surface; at least one anchoring post means extending from said recess in a direction inclined at an acute angle of at least 15 against the perpendicular on said lower surface and anchored in the adjoining portion of the maxillary bone, an end portion of said anchoring post means projecting into said recess; and a mass of cement material filling said recess and surrounding said projecting portion of said anchoring post means so as to firmly fasten said tooth memher to said anchoring post means and thereby to said maxillary bone through said post means anchored therein.
  • a dental anchoring post for attaching tooth means to a maxillary bone, comprising a straight rod portion adapted to be inserted into the bone and made of material chemically inert relative to the bone and to mucous tissues, said straight rod portion having a thickness of at least .3 mm. and up to 2.5 mm. so as to avoid dangerous contact with sensitive portions of the maxillary bone when inserted into the bone in a direction inclined at an acute angle of at least 5 with respect to the perpendicular on the top surface of said bone where the tooth means is to be located, and having an extension portion projecting outwardly when said rod portion is inserted into the bone and adapted to be firmly attached to the tooth means.
  • a dental anchoring rod according to the invention can be and is inserted into the bone in an inclined direction entails several advantages.
  • the anchoring rod can be inserted to a comparatively great depth without any danger;
  • the straight rod portion of the dental post according to the invention may be made of alloys conventionally used in dental surgery as for instance a cobalt-chromium alloy known by the trade-name stellite.
  • the rod portion may also consist of a synthetic resin e.g. an acrylic resin, preferably without color, having sufficient mechanical strength the the purpose and being inert relative to the bone and to the mucous tissues.
  • a synthetic resin e.g. an acrylic resin, preferably without color, having sufficient mechanical strength the the purpose and being inert relative to the bone and to the mucous tissues.
  • the rod portion of a metal which is coated at least partly or totally with such a resin in which case any metal for the metallic portion which has sufiicient mechanical strength may be used.
  • the rod portion or post may also be composed of a combination of two or more portions of which one or some is made of resin while one or the other of the remaining ones is made of metal.
  • a head portion made of resin may be attached to a rod portion of metal, or vice versa.
  • the rod portion or the post will be made in accordance with the invention of a wire of tantalum which is cold-rolled or drawn to the desired diameter. The drawing of such a wire should be carried out at low temperature in order to avoid oxidation and in order to improve by cold-working the mechanical qualities of the metal.
  • this cold-working can be carried out by reducing the diameter of a raw wire or blank from 10 mm. to 1 mm. so as to obtain a hardness of the order of 200 according to the Vickers scale and a tensil strength of kilogram per square millimeter.
  • tantalum is chemically inert relative to the bone material and when drawn as mentioned above has mechanical characteristics sufiicient to permit dental anchoring rods of small diameter according to the invention to resist not only to forces applied thereto when they are inserted into place, but also to be capable of resisting sufficiently lateral forces which the tooth attached by the post has to withstand.
  • the extension portion of the dental anchoring posts according to the invention projecting outwardly from the bone may be provided with a head which may be made of metal or may be a cap of any suitable material e.g. synthetic resin, platinum, etc.
  • the outer surfaces of the straight rod portion of the posts may be smooth but preferably they are rough or provided with fine grooves or channels or the like in order to provide for a better hold in the bone in view of the well known osteogenetic process according to which bone material will grow into such grooves or recesses as time goes on.
  • the attachment of natural or artificial teeth or of dentures or the like is carried out by placing the dental anchoring posts into the maxillary bone at an inclination forming an acute angle with the perpendicular on the surface of the bone on which the particular tooth or prosthesis is to be supported.
  • two or more of the posts are inserted in such a manner that the inclination of one post is opposite to or different from the inclination of the other or others and that the projecting extensions thereof are located adjacent to each other.
  • the artificial tooth or other member to be attached is provided with a recess of suflicient dimension for capping the above-mentioned outer extensions of the posts so that the final attachment can be carried out by filling the recess with some kind of cement which includes any type of sealing or solidifying material as for instance a dental synthetic resin which is self-polymerizing, or an oxyphosphate as conventionally used by dentists for fillings.
  • some kind of cement which includes any type of sealing or solidifying material as for instance a dental synthetic resin which is self-polymerizing, or an oxyphosphate as conventionally used by dentists for fillings.
  • the tooth or the like is simply placed over the projecting outer end or ends of the post or posts, respectively.
  • the posts are permanently fixed in their relatively inclined position so that it is quite impossible that they come loose or are pushed out.
  • a drilling device For fixing the anchoring posts according to the invention in the bone one produces therein by means of a drilling device a channel of desired length or depth and of a diameter which should be slightly smaller than that of the selected post in its straight rod portion.
  • the diameter of the channel may be .8 or .9 mm. for receiving a post the straight rod portion of which was a diameter of 1 mm. so that the post has to be introduced into the drilled channel with some force.
  • the straight rod portion of the post terminates in a drilling or cutting portion so that the post itself can be used as a drilling tool for producing the required channel for itself.
  • the projecting extension portion of the post is formed as a head which is adapted to be gripped by the drilling device or a chuck thereof while nevertheless serving later as a anchoring portion for attaching the tooth or the like to the inserted post.
  • the head portion of the post is simply removed or released from the chuck or drilling device and the post remains embedded in the bone.
  • FIG. 1 is a diagrammatic cross-sectional elevation showing an artificial tooth attached to the lower maxillary bone by means of two dental anchoring posts according to the invention
  • FIG. 2 is a similar View illustrating an attachment in which only one single dental anchoring post is used
  • FIGS. 3-6 illustrate at an enlarged scale various suitable forms of anchoring posts according to the invention
  • FIG. 7 illustrates in a manner similar to that shown by FIG. 1 the attachment of a dental prosthesis
  • FIG. 8 is a diagrammatic sectional elevation illustrating the attachment of a loose tooth by means of a dental anchoring rod according to the invention introduced laterally;
  • FIG. 9 illustrates a particular form of a pair of dental anchoring rods according to the invention.
  • FIG. 10 is a perspective view of a dental anchoring rod according to the invention which in itself constitutes a drill;
  • FIG. 11 is an elevation of the post according to FIG. 10 showing how the latter is held in the chuck of a drilling device
  • FIGS. 12 and 13 illustrate in a similar manner modifications of the device according to FIG. 10 as far as the head portion is concerned;
  • FIG. 14 is a partial perspective illustration of a further modification of the straight rod portion of a post according to the invention.
  • FIG. 15 is a diagrammatic sectional elevation illustrating the use of the dental anchoring posts according to the invention for attaching an artificial root and an artificial tooth to the bone;
  • FIG. 16 illustrates in a manner similar to that of FIG. 1 the modification of the invention whereby a supporting plate is interposed between the tooth and the bone.
  • the dental anchoring post may be formed as a straight pin (FIG. 3) without a head portion, or with a suitable head portion (FIGS. 46).
  • the individual posts 1 having preferably a pointed tip 2 for facilitating their insertion and a length so chosen that it is possible to insert them sufiiciently into the bone for obtaining a secure hold therein while still leaving an outwardly projecting extension portion on which then the tooth or the prosthesis can be attached.
  • the straight rod portion which is to be inserted into the bone has in normal cases a length of 6 to 12 mm., but in certain cases it may have to be shorter, down to approximately 4 mm., or longer up to 30 mm. approximately.
  • the projecting eX- tension portion has as a rule a length ranging between 2 and 5 mm., preferably however ranging between 3 and 4 mm. Consequently the overall length is preferably of the order of 12 to 15 mm.
  • the insertion of the post at an inclined angle makes it possible to avoid an undesirable penetration into the maxillary sinus or the dental canal so that the length of the post may be even up to 35 mm. if insertion thereof to a great depth is desired for any reason.
  • the thickness or diameter of the straight rod portion of the post may vary within reasonable limits depending upon the requirements. A thickness or diameter between .4 mm. and 2.5 mm. may be used, but preferably the thickness or diameter should be in the neighborhood of 1 mm. which dimension is satisfactory in most ordinary cases.
  • the dental anchoring rods according to the invention, or at least their straight rod portion which is to be inserted into the bone are preferably made of a metal which is chemically inert relative to the bone material or to the mucous tissues.
  • a metal which is chemically inert relative to the bone material or to the mucous tissues.
  • Many metals or alloys suiting this condition are well-known. Many are designated by the gen eral name stellites. Generally they contain chromium, cobalt, and molybdenum, preferably in the following proportions: chromium 30%, cobalt 65% and molybdenum 5%.
  • these posts or the portion thereof which is to be inserted into the bone of a drawn tantalum wire it is still preferred to make these posts or the portion thereof which is to be inserted into the bone of a drawn tantalum wire.
  • this metal which is also inert relative to the bone material makes it possible to manufacture the dental rods according to the invention without any difficulty.
  • the tantalum which is a non-magnetic metal does not give rise to electric currents upon contact with the pH value of the saliva, of the bone or of the blood which value varies between individuals.
  • the posts according to the invention may be produced by casting or by drawing.
  • the drawing method results in a greater strength even with the small thickness of the posts and therefore the posts made of drawn who can have a diameter or thickness smaller than that of those which are produced by casting.
  • the dental anchoring posts according to the invention may be without a head as shown in FIG. 3 or with a head as illustrated by way of example by FIGS. 4-6.
  • the body or shank 1 is cylindrical. They may have a pointed tip 2 or may be blunt, or simply rounded at the end in order to facilitate their insertion.
  • the outer surface of the shank may be smooth, or mat or provided with fine grooves, channels or the like so that a more solid connection with the surrounding bone material is obtained into which the post is inserted.
  • the dental anchoring rods according to FIGS. 1-9 For inserting the dental anchoring rods according to FIGS. 1-9 into the bone one proceeds by drilling into the wall of the bone a channel which is inclined at an acute angle of at least relative to the axis of the tooth or of the prosthesis to be attached or in any case at an angle of inclination relative to the perpendicular on the surface where the tooth or the like is to be supported by the bone.
  • a channel which is inclined at an acute angle of at least relative to the axis of the tooth or of the prosthesis to be attached or in any case at an angle of inclination relative to the perpendicular on the surface where the tooth or the like is to be supported by the bone.
  • the thickness or diameter of the straight rod portion of the post is slightly below the diameter of the drilled hole an excellent fixation of the post in the bone is obtained in combination with the inclined direction of its insertion because under these circumstances the straight rod portion does not extend in the direction of the forces it has to withstand.
  • the thickness of the straight rod portion is small
  • tooth or prosthesis is indicated at T, the maxillary bone at 9, the
  • FIGS. 7, 8 and 16 which will be described further below.
  • the head portions 10, it) and It? of FIGS. 4-6 Will also be described further below.
  • the recess or cavity 5 of sufiicient dimension provided in the tooth T is filled with a cement e.g. a self-polymerizing synthetic resin 6
  • the tooth or the like is placed with this cavity and with the cement over the projecting extension portion or portion 4. This results in a perfect fixation.
  • an insulating support plate which is made of a material chemically inert relative to the mucous tissue of the gum 9 and separates the cement 21 in. the cavity of the tooth T from the mucous tissue.
  • any type of suitable cement material can be used without danger of irritation of the gums.
  • FIGS. 1, 2, 7 and 16 the maxillary bone 9 has been illustrated in cross-section without showing therein any hollow portions like the alveolar recess ordinarily receiving the root of a tooth. This has been done without detracting from the essence of this invention because as a rule a dental prosthesis or an artificial tooth is not attached to the maxillary bone immediately after a tooth has been extracted. As is wellknown the bone grows within a certain time into the recess and closes the opening or recess which previously has accommodated the root of the extracted tooth.
  • the dental anchoring posts according to the invention are so constructed that they can be inserted into the maxillary bone at a certain angle of inclination, it is also possible to use these anchoring posts for consolidating loose teeth which nevertheless are still somehow supported in the maxillary bone.
  • FIG. 8 one can proceed according to the invention in such a manner that first a recess 14- is hollowed out in the lateral wall of the tooth T whereafter starting from the recess 14 a channel 15 is drilled in inclined direction relative to the axis of the tooth T through the root portion of the tooth and beyond that into the maxillary bone 9.
  • the nerve of the tooth has to be killed or removed.
  • a dental anchoring post 1 can be driven through the channel 15 in the tooth and into the extension of this channel into the bone 9 whereby the tooth T is reliably fixed in the bone 9.
  • the outer end portion of the post 1 projecting into the recess 14 is then surrounded by a cement filling in the usual manner.
  • the actual prosthesis T can then be mounted on the supports 7 in the conventional manner.
  • the attachment of teeth or of prostheses as described above can be carried out not only with dental anchoring posts according to FIG. 3 but also with posts which are slightly different.
  • the post may terminate at its upper end in a portion which is transversely of an increased dimension as illustrated by FIGS. 4-6 and may be provided with grooves, beads or other irregularities so as to constitute a head portion which remains outside the bone when the straight rod portion of the post is inserted and serves for attaching thereto the tooth or prosthesis as illustrated by Way of example in FIG. 2.
  • the head portion at an angle relative to the straight rod portion of the post so that after insertion of the post in inclined direction the head has a substantialy vertical position.
  • the head portion may also be coaxial with the straight rod portion of the post.
  • the head portion may be integral with the remainder of the post and made of the same material or metal as the latter (FIGS. 4 and 5) or, on the other hand, the head portion It) may be attached to the straight rod portion e.g. by a threaded connection, and
  • the dental type of synthetic resin may in this case also be made of a different material e.g. of a dental type of synthetic resin.
  • the head portion may be provided with a perforation lt'la adapted to accommodate some of the cement material.
  • FIG. 9 illustrates a modication of the abovedescribed embodiments of the inventiOn consisting in a two-piece combination of two dental anchoring rods 1 and 11.
  • the post 1 which may or may not have a pointed tip 2 extends through an eye or perforation 13 of the other post 11 which may or may not have a pointed tip 12.
  • a two-piece post combination is obtained wherein the two posts 1 and 11 are inclined relative to each other and each of them is, when the combination is mounted in the bone as described above inclined at an acute angle relative to the perpendicular on the surface where the artificial tooth or the like meets with the top surface of the maxillary bone.
  • the post 1 will be placed in position after the post 11 has been inserted whereafter they constitute together a combined mechanically joined structure.
  • the dental anchoring post according to the invention constitutes itself a drill which evidently constitutes a substantial facilitation of the insertion of the posts and also reduces any possible discomfort of the patient.
  • FIGS. 10 and 11 illustrate one example of such a modified form of the dental anchoring posts according to the invention. It can be seen that in this case the straight rod portion 1a of the post terminates in a cutting edge 2b and is'formed at 2a like a helical drill with one or more cutting grooves 3a.
  • the other end or extension portion of the post is formed as a head 4a which is adapted to be received by a corresponding slot or recess 7a of the chuck 6a of a drilling device of any conventional type as normally used by a dentist.
  • the post 1a Before the drilling device is put into operation the post 1a is pushed in direction of the arrow f with its head 14a into the slot 7a so as to insure the proper transmission of torque from the drill chuck 6a to the post 1a.
  • the post In is now used like an ordinary dental drill for drilling the required channel into the bone as described above.
  • the chuck 6a is removed from the post la by pulling it away in the direction of the arrow f and the post 1a is simply left in the channel it has produced.
  • the projecting head portion 4! can now be used for attaching the tooth or the like in the same manner as described above in relation to FIGS. 1, 2, 7, or 16-.
  • the latter may be provided with transverse recesses a into which the cement will enter.
  • FIG. 12 illustrates a further modification of the drilltype post In according to FIGS. and 11.
  • the shank 1a" otherwise similar to the shank 1a described above is provided with a head portion 4a which has cross-shape with arms extending transversely of the axis of the shank la.
  • This form is advisable if the chuck of the drilling device has jaws conforming to the crossshape of the head 4a so as to insure a firm and reliable grip between the chuck and the head of the post.
  • the example according to FIG. 13 constitutes still another modification in which case the head portion 4a" is provided with a thread portion 8a which is adapted to engage a correspondingly provided internal thread in the chuck 6a of the drilling device.
  • the chuck of the drilling device is simply unscrewed from the post In" and again the post is then left firmly embedded in the bone.
  • FIG. 14 illustrates a portion of the shank 1b of a post according to the invention and it can be seen that in this case the shank 1b is not cylindrical but is a prismatic member having cutting edges along its length or at least at its tip as illustrated at If).
  • the dental anchoring posts according to the invention are adapted to be used in many different cases of dental Work.
  • an artificial tooth T on an artificial root 18 as illustrated by FIG. 15.
  • the artificiaLroot 18 may be made of synthetic material, or if desired of tantalum or stellite (but in this case with prefabricated channels therethrough for receiving the dental posts 16 and 17) and may be placed as illustrated into the root socket of the jawbone 19 after the original root of the respective natural tooth has been extracted.
  • the procedure is analogous to the one described above.
  • Channels are drilled at the inclination required either through the resin material of the artificial root 18 and then into the bone 19 or, in the other case, through the prefabricated holes of a metal root 18 into the bone 19 whereafter the dental anchoring posts 16 and 17 are placed into the channels or left therein as described above, and now by means of cement 6 in the cavity 5 of the tooth T the latter is attached to the projecting upper ends of the posts 16 and 17.
  • the tooth T in FIG. 15 is a portion of a natural tooth or an artificial tooth or cap or crown made of synthetic resin, ceramic or any other material.
  • a method of attaching discrete tooth means with the aid of anchoring post means to a maxillary bone comprising the steps of: drilling substantially from the center of the surface area of the discrete maxillary bone where the tooth means is to be attached at least two channels of predetermined diameter into the maxillary bone in diverging directions inclined at an acute angle of at least 5 against the perpendicular on said surface area; fixing in each of said channels an anchoring post means, respectively, in such a position that an end portion thereof projects outwardly from said surface area; and attaching a discrete tooth means to said outwardly projecting portions of said anchoring post means.
  • a method of attaching a loose tooth with the aid of anchoring post means to a maxillary bone comprising the steps of: producing a recess in a side surface of the loose tooth portion projecting from the maxillary bone and drilling from said recesses through the root of the tooth and into the maxillary bone at least one channel of predetermined diameter, which channel passes through the root in a position of other-than alignment with the root canal and which is inclined at an acute angle of at least against the axis of the tooth, fixing in said channel an anchoring post means in such a position that an end portion thereof projects outwardly into said recess and attaching said tooth to said outwardly projecting portion of said anchoring post means by filling said recess with cement material surrounding said projecting portion of said anchoring post means.
  • a method of attaching tooth means with the aid of an artificial root and of anchoring post means to a maxillary bone comprising the steps of: placing an artificial root of a material inert relative to bone and mucous tissues into alveolar recess of the maxillary bone; drilling substantially from the center of the surface area of said artificial root where the tooth means is to be attached at least one channel of predetermined diameter into the maxillary bone in a direction inclined at an acute angle of at least 5 against the perpendicular on said surface area; fixing in said channel an anchoring post means in such a position that one end portion thereof is anchored in the maxillary bone an another end portion projects outwardly from said surface area; and attaching a tooth ments to said outwardly projecting portion of said anchoring post means.
  • a method of attaching a tooth means with the aid of anchoring post means to a maxillary bone comprising the steps of: drilling with a drilling tool substantially from the center of the surface area of the maxillary bone where the tooth means is to be attached at least one channel of predetermined diameter into the maxillary bone in a direction inclined at an acute angle of at least 5 against perpendicular on said surface area; leaving said drililng tool in said channel in such a position that an end portion thereof projects outwardly from said surface area; and attaching a tooth means to said outwardly projecting portion of said drilling tool.
  • a set of dental anchoring posts for attaching tooth means to a maxillary bone each post comprising a straight rod portion adapted to be inserted into the bone and made of material chemically inert relative to the bone and to mucous tissues, said straight rod portion having a thickness of at least .3 mm. and up to 2.5 mm.
  • said artificial root is provided with prefabricated channels through which a drilling tool is guided before and while producing said channel in the maxillary bone and through which said anchoring post means are inserted into said channel for anchoring in the maxillary bone.
  • a dental anchoring post for attaching tooth means to a maxillary bone comprising a substantially cylindrical straight rod portion adapted to be inserted into the bone and having a free end terminating in at least one cutting edge adapted to act as a drill bit, said rod portion being made from material chemically inert relative to the bone and to mucous tissues but hard enough to enable said cutting edge to drill a bore into the bone when said rod portion is rota-ted, said straight rod portion being formed with at least one helical groove for facilitating firm anchoring of said rod portion in the bone and having a thickness of at least .3 millimeters and up to 2.5 millimeters so as to avoid dangerous contact with sensitive portions of the maxillary bone when inserted into the bone in a direction inclined at an acute angle of at least 5 degrees with respect to the perpendicular on the top surface of said bone Where the tooth means is to be located, said anchoring post further comprising an extension portion projecting outwardly when said rod portion is inserted into the bone, and a head portion at the outwardly
  • a dental anchoring post for attaching tooth means to a maxillary bone comprising a rod portion adapted to be inserted into the bone and having a free end terminating in at least one cutting edge adapted to act as a drill bit, said rod portion being made from material chemically inert relative to the bone and to mucous tissues but hard enough to enable said cutting edge to drill a bore into the bone when said rod portion is rotated, said anchoring post further comprising an extension por-tion projecting outwardly when said rod'portion is inserted into the bone, and a head portion at the outwardly projecting end of said extension portion and being adapted to be gripped by a chuck of a drilling machine so that the post itself can serve as a drill for cutting a channel in the bone into which it is to be inserted.
  • a method as defined in claim 4 and further comprising the steps of drilling with an additional drilling tool substantially from the center of the surface of the maxillary bone an additional channel of predetermined diameter in a direction diverging from said one channel and inclined at an acute angle of at least 5 against the perpendicular on said surface area; leaving said additional tool in said additional channel in such a position that an end portion thereof projects outwardly from said surface area; and attaching said tooth means also to the outwardly projecting end portion of said additional drilling tool.
  • a dental anchoring post for attaching tooth means to a maxillary bone comprising a substantially cylindrical straight rod portion adapted to be inserted into the bone and having a free end terminating in at least one cutting edge adapted to act as a drill bit, said rod portion being made from material chemically inert relative to the bone and to mucous tissues but hard enough to enable said cutting edge to drill a bore into the bone when said rod portion is rotated, said straight rod portion having a thickness of at least .3 millimeter and up to 2.5 millimeters so as to avoid dangerous contact with sensitive portions of the maxillary bone when inserted into the bone in a direction inclined at an acute angle of at least 5 degrees with respect to the perpendicular on the top surface of said bone where the tooth means is to be located, said anchoring post further comprising an extension portion projecting outwardly when said rod portion is inserted into the bone, and a head portion at the outwardly projecting end of said extension portion and being adapted to be gripped by a chuck of a drilling machine so that the
  • a method of attaching tooth means to a maxillary bone comprising the steps of drilling substantially from the center of the surface area of the maxillary bone where the tooth means is to be attached at least one channelrof predetermined diameter into the maxillary bone in a direction inclined at an acute angle of at least against the perpendicular on said surface area; fixing in said channel an anchoring post means in such a position that an end portion thereof projects outwardly from said surface area; providing a tooth means having in a surface thereof which is to be juxtaposed with said surface area a cavity adapted to receive said outwardly projecting portion of said anchoring post means and to further receive a body of hardenable material for anchoring said portion in said cavity; interposing a protective support plate of a material inert relative to said maxillary bone and to mucous tissue, between said surface and said surface area; and attaching said tooth means to said outwardly projecting portion of said anchoring post means by placing said tooth means over said portion so that the latter is received in said cavity containing said body of material, and
  • a dental anchoring post for attaching tooth means to a maxillary bone comprising a substantially cylindrical straight rod portion adapted to be inserted into the bone and having a free end terminating in at least one cutting edge adapted to act as a drill bit, said rod portion being made from a material consisting at least in part of tantalum and chemically inert relative to the bone and to mucous tissues but hard enough to enable said cutting edge to drill a bore into the bone when said rod portion is rotated, said straight rod portion having a thickness of at least .3 millimeter and up to 2.5 millimeters so as to avoid dangerous contact with sensitive portions of the maxillary bone when inserted into the bone in a direction inclined at an acute angle of at least 5 degrees With respect to the perpendicular on the top surface of said bone where the tooth means is to be located, said anchoring post further comprising an extension portion projecting outwardly when said rod portion is inserted into the bone, and a head portion at the outwardly projecting end of said extension portion and being adapted to be gripped

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Prosthetics (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US253113A 1962-01-26 1963-01-22 Method and means for attaching teeth and the like to the maxillar bone Expired - Lifetime US3386169A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US705974A US3566470A (en) 1963-01-22 1968-02-16 Implant method for securing artificial teeth

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR886088A FR1320212A (fr) 1962-01-26 1962-01-26 Implants pour fixation de dents ou de prothèses dentaires
FR889782A FR81714E (fr) 1962-03-02 1962-03-02 Implants pour fixation de dents ou de prothèses dentaires

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Cited By (20)

* Cited by examiner, † Cited by third party
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US3579831A (en) * 1969-03-05 1971-05-25 Irving J Stevens Bone implant
FR2305164A1 (fr) * 1975-03-26 1976-10-22 Tauri Arnaldo Systeme de liaison en prothese dentaire et instrument pour sa mise en oeuvre
US4142293A (en) * 1976-03-03 1979-03-06 Jacques Tieche Anchoring screw for dental fillings
US4175565A (en) * 1977-06-22 1979-11-27 Oratronics, Inc. Method and apparatus for stimulating osteogenic activity in bone structure adjacent a dental implant
JPS5545491A (en) * 1978-09-25 1980-03-31 Vajda Tibor Timothy Planted piece for false tooth
US4990090A (en) * 1988-11-18 1991-02-05 Roane James B Endodontic post construction
US5074790A (en) * 1989-06-05 1991-12-24 Ernst Bauer Screw implant for a jawbone
US5312255A (en) * 1989-06-05 1994-05-17 Ernst Bauer Screw implant for a jawbone
US5984681A (en) * 1997-09-02 1999-11-16 Huang; Barney K. Dental implant and method of implanting
US20030135216A1 (en) * 2000-05-25 2003-07-17 Sevrain Lionel C. Anchoring system for fixing objects to bones
WO2010094246A1 (de) * 2009-02-18 2010-08-26 Adm A.S. Zahnstumpfaufbau, dessen herstellverfahren und bauweise
US20100266987A1 (en) * 2009-04-21 2010-10-21 Ford Christopher W Dental implant assembly
US20110218585A1 (en) * 2010-03-08 2011-09-08 Krinke Todd A Apparatus and methods for bone repair
US9517093B2 (en) 2008-01-14 2016-12-13 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US20170172710A1 (en) * 2014-12-19 2017-06-22 Paul Hertz Dental Implant System
US9730739B2 (en) 2010-01-15 2017-08-15 Conventus Orthopaedics, Inc. Rotary-rigid orthopaedic rod
US9993277B2 (en) 2010-03-08 2018-06-12 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US10022132B2 (en) 2013-12-12 2018-07-17 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10918426B2 (en) 2017-07-04 2021-02-16 Conventus Orthopaedics, Inc. Apparatus and methods for treatment of a bone
US11596419B2 (en) 2017-03-09 2023-03-07 Flower Orthopedics Corporation Plating depth gauge and countersink instrument

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571187A (en) * 1983-04-29 1986-02-18 Ipco Corporation Dental post for retention of a prosthetic superstructure
US11903791B2 (en) * 2014-09-12 2024-02-20 Italo Lozada Dental prosthesis

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US238334A (en) * 1881-03-01 Artificial tooth-crown
US276920A (en) * 1883-05-01 Artificial tooth
US342271A (en) * 1886-05-18 stare
US616302A (en) * 1898-12-20 George evans
US2609604A (en) * 1949-02-14 1952-09-09 Boyd F Sprague Dental screw insert
FR1128217A (fr) * 1955-07-26 1957-01-03 Tenon métallique à ailette pour l'utilisation des couronnes dentaires de revêtement en matière plastique comme couronnes de substitution à tenon

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US238334A (en) * 1881-03-01 Artificial tooth-crown
US276920A (en) * 1883-05-01 Artificial tooth
US342271A (en) * 1886-05-18 stare
US616302A (en) * 1898-12-20 George evans
US2609604A (en) * 1949-02-14 1952-09-09 Boyd F Sprague Dental screw insert
FR1128217A (fr) * 1955-07-26 1957-01-03 Tenon métallique à ailette pour l'utilisation des couronnes dentaires de revêtement en matière plastique comme couronnes de substitution à tenon

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579831A (en) * 1969-03-05 1971-05-25 Irving J Stevens Bone implant
FR2305164A1 (fr) * 1975-03-26 1976-10-22 Tauri Arnaldo Systeme de liaison en prothese dentaire et instrument pour sa mise en oeuvre
US4142293A (en) * 1976-03-03 1979-03-06 Jacques Tieche Anchoring screw for dental fillings
US4175565A (en) * 1977-06-22 1979-11-27 Oratronics, Inc. Method and apparatus for stimulating osteogenic activity in bone structure adjacent a dental implant
US4283176A (en) * 1978-02-25 1981-08-11 Vajda Tibor T Endodontic-prosthetic stabilization system
JPS5545491A (en) * 1978-09-25 1980-03-31 Vajda Tibor Timothy Planted piece for false tooth
US4990090A (en) * 1988-11-18 1991-02-05 Roane James B Endodontic post construction
US5074790A (en) * 1989-06-05 1991-12-24 Ernst Bauer Screw implant for a jawbone
US5312255A (en) * 1989-06-05 1994-05-17 Ernst Bauer Screw implant for a jawbone
US5984681A (en) * 1997-09-02 1999-11-16 Huang; Barney K. Dental implant and method of implanting
US20030135216A1 (en) * 2000-05-25 2003-07-17 Sevrain Lionel C. Anchoring system for fixing objects to bones
US10603087B2 (en) 2008-01-14 2020-03-31 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US9517093B2 (en) 2008-01-14 2016-12-13 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US11399878B2 (en) 2008-01-14 2022-08-02 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
US9788870B2 (en) 2008-01-14 2017-10-17 Conventus Orthopaedics, Inc. Apparatus and methods for fracture repair
WO2010094246A1 (de) * 2009-02-18 2010-08-26 Adm A.S. Zahnstumpfaufbau, dessen herstellverfahren und bauweise
CZ302049B6 (cs) * 2009-02-18 2010-09-15 A D M A. S. Zpusob zhotovení dostavby korunky a dostavba vytvorená tímto zpusobem
US20110294095A1 (en) * 2009-02-18 2011-12-01 Adm A.S. Tooth stump structure, production method and design thereof
US20100266987A1 (en) * 2009-04-21 2010-10-21 Ford Christopher W Dental implant assembly
US8702424B2 (en) * 2009-04-21 2014-04-22 Christopher W. Ford Dental implant assembly
US9730739B2 (en) 2010-01-15 2017-08-15 Conventus Orthopaedics, Inc. Rotary-rigid orthopaedic rod
US20110218585A1 (en) * 2010-03-08 2011-09-08 Krinke Todd A Apparatus and methods for bone repair
US9993277B2 (en) 2010-03-08 2018-06-12 Conventus Orthopaedics, Inc. Apparatus and methods for securing a bone implant
US10022132B2 (en) 2013-12-12 2018-07-17 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10076342B2 (en) 2013-12-12 2018-09-18 Conventus Orthopaedics, Inc. Tissue displacement tools and methods
US10779912B2 (en) * 2014-12-19 2020-09-22 Paul Hertz Dental implant system
US20170172710A1 (en) * 2014-12-19 2017-06-22 Paul Hertz Dental Implant System
US11622839B2 (en) 2014-12-19 2023-04-11 Paul Hertz Dental implant system
US11596419B2 (en) 2017-03-09 2023-03-07 Flower Orthopedics Corporation Plating depth gauge and countersink instrument
US10918426B2 (en) 2017-07-04 2021-02-16 Conventus Orthopaedics, Inc. Apparatus and methods for treatment of a bone

Also Published As

Publication number Publication date
SE303346B (enrdf_load_stackoverflow) 1968-08-26
ES282752A3 (es) 1963-01-16
GB1032842A (en) 1966-06-15

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