CN113274151B - Double-shaft immediate planting oral implant structure - Google Patents

Abstract

The invention provides a double-shaft immediate implantation oral implant structure, which comprises an implant (20), an abutment (30), an abutment retention screw (40) and an implantation dental crown (50); the implant (20) is of an integrally formed structure and comprises a crown part (21), a root part (22) and a corner part (23), the abutment (30) is provided with a second connecting part (31), a gum penetrating part (32) and a retention part (33) from bottom to top in sequence, and the retention screw (40) of the abutment comprises a head part (41), a screw rod part (42) and a screw thread part (43). The oral implant structure effectively solves the problem that a base station retention screw channel often penetrates out of a crown incising end or even a labial surface in later-stage repair by adopting a method of implanting the implant at the palatine side and implanting the root of the implant into the bone tissue at the root tip and the palatine side of an extracted dental fossa; has the advantages of good stability of the implant, good mechanical strength, convenient implantation and good aesthetic effect.

Description

Double-shaft immediate planting oral implant structure

Technical Field

The invention relates to the technical field of oral implants, in particular to a double-shaft immediate-implantation oral implant structure.

Background

The oral implant is also called artificial tooth root, and is implanted into the jawbone tissue of the edentulous area, combined with the bone tissue and bearing the artificial tooth crown prosthesis on the upper part. After the implant is combined with the bone tissue in a bone nature, the implant can bear the repeated action of the occlusal force without loosening. Structurally, conventional oral implants include an implant, an abutment retention screw, and an implant crown.

The method comprises the following steps of implanting the oral implant into bone tissues, namely delayed implantation and immediate implantation, wherein the delayed implantation refers to the step that the alveolar fossa after the tooth root is pulled out is healed for more than 3-6 months, so that new bone is formed in the alveolar fossa, and then the implant is implanted; immediate implantation means that the implant is implanted in a fresh extraction socket immediately while the tooth is extracted. Compared with delayed planting, the instant planting has the advantages of short treatment course, less diagnosis times and low surgical trauma, and simultaneously, compared with delayed planting, the instant planting can also reduce the absorption amount of alveolar bones, thereby obtaining the ideal aesthetic effect of planting.

In clinical treatment, the maxillary anterior tooth area is the most applied condition of the immediate planting technology, and the initial stability of the implant implanted into the tooth extraction socket during the immediate planting is one of the key factors for determining whether the implant can be combined with the bone tissue osseointegrated; however, the size of the extraction socket is significantly larger than the diameter of the implant, and a large gap is often formed between the bone wall of the extraction socket and the outer surface of the implant after implantation, so that all the surfaces of the implant cannot be in close contact with bone tissues, and the initial stability of the implant is low. Therefore, the long implant is generally clinically implanted in a mode of tightly attaching the implant to the palatine bone wall of the extraction socket at the moment of implantation, so that the root of the implant is ensured to be implanted into the bone tissue of the root tip of the extraction socket on the side opposite to the palate, certain initial stability is obtained, and the implant is favorable for bone healing. However, with the method of implanting the implant at the palatal side and implanting the root of the implant into the bone tissue at the palatal side of the root tip of the extracted dental fossa, when the dental crown is repaired at the later stage, the implantation at the palatal side often causes the long axis of the implant to point to the incisal end or even the labial side of the dental crown to be implanted in the future, and because the long axis of the traditional implant is coincident and collinear with the long axis of the retention screw channel of the abutment, the retention screw channel of the abutment is directly caused to penetrate out of the incisal end or even the labial surface of the dental crown to seriously affect the aesthetic effect and the mechanical strength of the dental crown, and the repair complications are easy to occur.

Disclosure of Invention

In view of the problems of the prior art, the invention aims to provide a double-shaft immediate implantation oral implant structure, so as to solve the problems that a lateral palatal implant is implanted to implant the root of the implant into the palatal bone tissue of the root tip of an extracted fossa, and a retention screw channel of a base station often penetrates out of the incised end of a dental crown or even the labial surface during later repair.

The purpose of the invention is realized by the following technical scheme:

a double-shaft immediate implantation oral implant structure comprises an implant, an abutment retention screw and an implantation dental crown, and is characterized in that: the implant is of an integrally formed structure and comprises a crown part, a root part and a corner part; the crown part and the root part are smoothly connected through a corner part (namely the surface of the corner part is in a natural smooth rounded shape), the central axes of the crown part and the root part are not collinear, and the central axes intersect at a certain angle; the crown part and the root part are both in a truncated cone-shaped structure, the minimum diameter of the crown part is not smaller than the maximum diameter of the root part, the diameter of the crown part is gradually reduced from far to near the corner part, and the diameter of the root part is gradually reduced from near to far from the corner part; the middle part of one end of the crown part far away from the corner part is inwards concave to form a first connecting part and an internal thread, the first connecting part is positioned at the lower end of the internal thread (namely, the crown end, the first connecting part is positioned at one end far away from the corner part) and is used for connecting the abutment, the first connecting part comprises a first cone structure and a first anti-rotation structure, the first cone structure is positioned at the lower end of the first anti-rotation structure (namely, the crown end and the first cone structure are positioned at one end far away from the internal thread), and the internal thread is screwed and matched with the abutment retaining screw; the abutment comprises a second connecting part, a gum penetrating part and a retainer part from bottom to top in sequence, the second connecting part comprises a second cone structure and a second anti-rotation structure, the second cone structure and the second anti-rotation structure are respectively matched with the first cone structure and the first anti-rotation structure, the gum penetrating part is a part which extends from the upper end of the implant to the level of gum, the surface of the gum penetrating part is in a smooth and continuous concave shape, the diameter of the surface of the gum penetrating part is gradually increased from the upper end of the implant to the level of gum, the retaining part is of a flat hexahedral structure similar to the shape of a dental crown of an upper maxillary incisor of a human body, the lower end of the retaining part is connected with the upper end of the gum penetrating part, a shoulder is arranged at the connection position (namely, the maximum diameter position of the upper end of the gum penetrating part and the lower end of the retaining part form the shoulder), and a screw channel is arranged in the abutment and used for installing a retaining screw of the abutment; the abutment retention screw comprises a head, a screw rod part and a screw thread part, the diameter of the screw rod part is slightly smaller than the diameters of the head and the screw thread part, the screw thread part is the same as the internal thread diameter, and the surface of the screw rod part is smooth.

This oral cavity implant structure passes through the crossing corner design for certain angle of crown square portion and root square portion, thereby form the biax structure, when guaranteeing to pull out the implant screw in fresh tooth socket, only need make the directional palate side of pulling out the tooth socket of implant corner portion, can realize smoothly that the axis of crown square portion points to palate side, abutment retention screw passageway will wear out from the lingual surface nest of planting the dental crown, avoid the condition that abutment retention screw wore out from tangent end or labial surface to appear.

Further optimization is carried out, the central axis of the crown part is smoothly connected with the central axis of the root part, and the intersection angle of the two central axes is 5-20 degrees.

Preferably, the maximum diameter (i.e. the diameter at the end far away from the corner part) of the crown part is 3.5-4.5 mm, and the length thereof is 7-9 mm, and the diameter (i.e. the diameter at the end far away from the corner part) of the root part end is 2.3-3.0 mm, and the length thereof is 4-6 mm.

Further optimization is carried out, the height of the first cone structure is 2-3 mm, and the taper angle is 6-10 degrees (namely, the height of the second cone structure is 2-3 mm, and the taper angle is 6-10 degrees).

Further preferably, the second anti-rotation structure is a hexahedral structure, and the height of the second anti-rotation structure is 1mm and the thickness of the second anti-rotation structure is 0.4-0.5 mm (that is, the first anti-rotation structure is a hexahedral structure, and the height of the first anti-rotation structure is 1 mm).

Further optimization is carried out, the height of the internal thread is 2.5-3 mm, and the diameter is 1.5-1.8 mm.

Further optimization is carried out, external threads are uniformly arranged on the outer walls of the crown square part and the root square part, the thread pitch of the external threads is 0.7-1.0 mm, thread forms are all equilateral triangles, the thread form angle is 60 degrees, and the thread height is 0.866 times of the thread pitch; the external threads of the crown part and the root part close to the corner part become gradually lower, and the external wall of the corner part has no external thread.

The gum penetrating part comprises a labial surface, a mesial surface, a distal middle surface and a lingual surface, the heights of the labial surface, the mesial surface, the distal middle surface and the lingual surface are fluctuated and changed and are respectively adapted to the anatomical shapes of the heights of the gingiva at the labial side, the mesial side, the distal middle side and the lingual side of the tooth implanting area, and the height of the labial surface is the minimum and is 1.0-2.0 mm so as to ensure that the crown edge can be smoothly positioned below the gingival margin at the labial side; the height of the mesial surface and the distal surface is relatively highest and is 1.5-3.5 mm, and the height of the lingual surface is central and is 1-3 mm.

Further optimization is carried out, and the width of the shoulder is 0.3-0.5 mm.

The abutment is characterized in that the retaining part is of a flat structure matched with the shape of a dental crown of an anterior maxillary tooth, the retaining part sequentially comprises a labial surface, a mesial surface, a distal surface, a lingual surface and a cutting end from the part close to the shoulder to the part away from the shoulder, four cutting angles of the cutting end are in a round and blunt shape, the labial surface is of a convex surface structure, the lingual surface is of a concave structure, the mesial surface, the distal surface and the cutting end are (approximately) in a straight surface structure, and the retaining screw channel of the abutment penetrates out of a lingual pit.

Further optimization is carried out, and the height of the retention part is 4-7 mm from the shoulder to the cut end.

Further preferably, the maximum diameter of the base platform is 4.5-6.5 mm (namely the diameter at the shoulder).

Further optimized, the diameter of the head part is 2.5-3.0 mm, and the height of the head part is 1.5-2.0 mm.

Further optimization is carried out, the transition part of the head part and the screw rod part is a smooth inverted cone inclined plane, and the taper angle is 45-60 degrees.

Further optimized, the diameter of the screw part is 1.3-1.6 mm, the diameter is slightly smaller than the diameter of the screw part and is 1.5-1.8 mm, the length of the screw part is 4-7 mm, and the height of the screw part is 2.5-3.5 mm.

Further optimization is carried out, the thread pitch of the thread part is 0.35mm or 0.4mm, the thread forms are all equilateral triangles, the form angle is 60 degrees, the thread height is 0.866 times of the thread pitch, and the number of threads of the thread part is 5-6.

The implanted dental crown is a dental crown which is manufactured according to the clinical occlusion condition in a personalized mode, the tissue surface shape of the implanted dental crown is completely the same as that of the retention part of the abutment, the implanted dental crown is bonded to the retention part through an adhesive, the margin line of the implanted dental crown is stopped at the shoulder of the abutment, and after the implanted dental crown is worn clinically, the margin line of the dental crown is generally 0.5-1.0 mm below the gingival margin; the lingual surface of the dental crown is provided with a pore passage which is communicated with the retention screw channel of the abutment, the pore passage is sealed by resin material, the resin can be removed to expose the retention screw channel of the abutment when needed, and the screw driver extends into the pore passage to unscrew the retention screw of the abutment, thereby realizing the maintenance of the implant prosthesis.

The implant, the abutment and the abutment retention screw are made of biocompatible metal, metal alloy material or ceramic material.

Preferably, the biocompatible metal, metal alloy and ceramic material is one of pure titanium, pure tantalum, titanium-aluminum-vanadium alloy, tantalum-titanium alloy, zirconium oxide and the like.

The invention has the following technical effects:

the using steps of the oral implant are as follows, the tooth root of the maxillary anterior tooth is extracted in a minimally invasive way, the tooth extraction socket is cleaned, a small ball drill is used for fixing a point on the palatine side bone wall of the tooth extraction socket, a triangular needle-shaped bone drill is used for preparing a bone bed to reach a proper depth, then a pioneer drill and a twist drill are used for gradually expanding the implant socket, the direction of the implant socket is repeatedly confirmed in the operation, and then the biaxial implant structure is implanted. The mark of the double-shaft immediate planting oral implant in place is as follows: firstly, the implantation depth is 0.5-1.0 mm, namely the upper edge of the crown part is positioned below the labial bone plate of the alveolar fossa; then, the implant is in the implantation direction, the palate surface of the implant crown square part is tightly attached or close to the palate side bone wall of the tooth extraction socket, and the concave side of the corner part points to the palate side bone wall of the tooth extraction socket, so that the central axis of the implant crown square part is ensured to be deviated to the palate side, and when the upper part is repaired, a retention screw channel of the abutment can be ensured to point to the palate side and penetrate out from the lingual surface socket of the implant crown after the abutment is placed. After the double-shaft oral implant is implanted, a gap exists between the surface of the implant and the bone wall of the tooth extraction socket, when the width of the gap is less than 2mm, bone grafting is not needed, and when the width of the gap is more than 2mm, autologous bone particles or artificial bone substitutes can be filled.

The invention effectively solves the problems frequently encountered in immediate planting of the maxillary anterior tooth area: when the maxillary anterior tooth area is implanted immediately, the palatal side is implanted, and the root of the implant is implanted into the bone tissue of the apical palatal side of the extracted dental fossa root, so that the problem that a retention screw channel of an abutment often penetrates out of the incisal end of a dental crown and even the labial surface during later-stage repair is caused; by adopting the invention, the central axis of the square part of the implant crown can deviate to the palate side, and when the upper part is repaired, the retention screw channel of the abutment also deviates to the palate side and penetrates out from the lingual fossa of the implant crown instead of penetrating out from the incisal end or the labial side of the implant crown, thereby avoiding the defects of aesthetic and mechanical strength; meanwhile, the invention also has the following (two) advantages: firstly, the corner part of the double-shaft oral implant is positioned at the root part of the abutment-implant connection, and the abutment-implant connection is positioned at the crown part of the implant, so that the condition that the size and the structural design of the abutment-implant connection are compromised to adapt to the corner is avoided, and therefore, the double-shaft design of the double-shaft oral implant can not influence the mechanical strength of the abutment-implant connection and can not influence the strength of the side wall of the implant; secondly, the root part is implanted into the bone tissue at the apical and palatine side of the extracted tooth socket, so that ideal initial stability can be obtained, and the implant is favorable for bone healing.

The invention fully utilizes the rule that the size of the tooth extraction socket is obviously larger than the diameter of the implant, and only needs to grind the bone wall for preventing the implant from being implanted, thereby realizing the implantation of the non-linear implant and the corner implant and avoiding the problem of difficult implantation.

Drawings

FIG. 1 is a view illustrating a conventional linear type implant implanted on a palatal side of an anterior maxillary area, resulting in an abutment screw channel opened on a labial surface of a crown.

Fig. 2 is a schematic view of an oral implant structure according to an embodiment of the present invention.

Fig. 3 is a schematic view of an implant structure of an oral implant structure according to an embodiment of the present invention.

Fig. 4 is a schematic view of an abutment of an oral implant structure according to an embodiment of the present invention.

FIG. 5 is a schematic view of an abutment screw according to an embodiment of the present invention.

Fig. 6 is a schematic view illustrating the implant being instantly implanted into the maxillary edentulous region tissue and the abutment screw channel being opened in the lingual socket of the implant crown according to the embodiment of the present invention.

Wherein, 10, the traditional linear long implant; 20. an implant; 21. a coronal portion; 211. a first connection portion; 2111. a first pyramidal structure; 2112. a first anti-rotation structure; 212. an internal thread; 22. a root part; 23. a corner portion; 30. a base station; 31. a second connecting portion; 311. a second cone structure; 312. a second anti-spin structure; 32. penetrating the gum part; 320. a shoulder; 33. a retention portion; 34. a screw channel; 40. an abutment retention screw; 41. a head portion; 42. a screw section; 43. a threaded portion; 50. and (5) implanting a dental crown.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 6, a dual-axis immediate-implantation oral implant structure includes an implant 20, an abutment 30, an abutment retention screw 40 and an implantation crown 50, and is characterized in that: the implant 20 is an integrally formed structure, and comprises a crown part 21, a root part 22 and a corner part 23; the crown square part 21 and the root square part 22 are smoothly connected through a corner part 23 (namely, the surface of the corner part 23 is in a natural smooth rounded shape), and the central axes of the crown square part 21 and the root square part 22 are not collinear, and the central axes intersect to form a certain angle; the crown square part 21 and the root square part 22 are in a truncated cone-shaped structure, the minimum diameter of the crown square part 21 is not smaller than the maximum diameter of the root square part 22, the diameter of the crown square part 21 is gradually reduced from the position far away from the corner part 23 to the position close to the corner part 23, and the diameter of the root square part 22 is gradually reduced from the position close to the corner part 23; the end of the crown portion 21 far away from the corner portion 23 is recessed in the middle to form a first connection portion 211 and an internal thread 212, the first connection portion 211 is located at the lower end of the internal thread 212 (i.e. the crown end, the first connection portion 211 is located at the end far away from the corner portion, as shown in fig. 2) and is used for connecting the abutment 30, the first connection portion 211 comprises a first cone structure 2111 and a first anti-rotation structure 2112, the first cone structure 2111 is located at the lower end of the first anti-rotation structure 2112 (i.e. the crown end, the first cone structure 2111 is located at the end far away from the internal thread 212, as shown in fig. 2), and the internal thread 212 is screwed and matched with the abutment retention screw 40; the abutment 30 comprises a second connecting portion 31, a gingival penetrating portion 32 and a retainer 33 from bottom to top, the second connecting portion 31 comprises a second cone structure 311 and a second anti-rotation structure 312, the second cone structure 311 and the second anti-rotation structure 312 are respectively matched with the first cone structure 2111 and the first anti-rotation structure 2112, the gum penetrating portion 32 is a portion extending from the upper end of the implant 20 to the gum level, the surface of the gum penetrating portion 32 is in a smooth and continuous concave shape, the diameter of the surface of the gum penetrating portion is gradually increased from the upper end of the implant 20 to the gum level portion, the retaining portion 33 is in a flat hexahedral structure similar to the shape of a maxillary incisor crown of a human body, the lower end of the retaining portion 33 is connected with the upper end of the gum penetrating portion 32, a shoulder 320 is arranged at the connection position (namely, the maximum diameter position of the upper end of the gum penetrating portion 32 and the lower end of the retaining portion 33 form the shoulder 320), and a screw channel 34 for installing a screw of the retaining abutment 40 is arranged in the abutment 30; the abutment screw 40 includes a head 41, a screw portion 42, and a screw portion 43, and the screw portion 42 has a diameter slightly smaller than the head 41 and the screw portion 43, and the screw portion 43 has the same diameter as the internal thread 212, and the screw portion 42 has a smooth surface.

The structure is designed to form a double-shaft structure through the intersection of the crown square part 21 and the root square part 22 at a certain angle, so that when the implant 20 is screwed into a fresh tooth extraction socket, only the corner part 23 points to the palate side of the tooth extraction socket, namely, the central axis of the crown square part 21 points to the palate side, the channel of the abutment retention screw 40 can smoothly penetrate out from the lingual socket of the implanted crown 50, and the abutment retention screw is prevented from penetrating out from the tangent end or the labial surface. The surface of the implant 20 of the present invention is divided into a labial surface located on the convex side at the intersection of the coronal portion 21 and the apical portion 22 and a palatal surface located on the concave side at the intersection of the coronal portion 21 and the apical portion 22.

The central axis of the crown square part 21 is smoothly connected with the central axis of the root square part 22, and the intersection angle of the two central axes is 5-20 degrees; the maximum diameter (i.e., the diameter at the end far from the corner 23) of the crown 21 is 3.5-4.5 mm, and the length thereof is 7-9 mm, and the diameter (i.e., the diameter at the end far from the corner 23) of the end of the root 22 is 2.3-3.0 mm, and the length thereof is 4-6 mm. The height of the first cone structure 2111 is 2-3 mm, and the angle of taper is 6-10 degrees (i.e. the height of the second cone structure 311 is 2-3 mm, and the angle of taper is 6-10 degrees); the second anti-rotation structure 312 is a hexahedral structure, and the height of the second anti-rotation structure 312 is 1mm and the thickness is 0.4-0.5 mm (i.e., the first anti-rotation structure 2112 is a hexahedral structure, and the height of the first anti-rotation structure 2112 is 1 mm). The height of the internal thread 212 is 2.5-3 mm, and the diameter is 1.5-1.8 mm.

The outer walls of the crown square part 21 and the root square part 22 are uniformly provided with external threads, the thread pitch of the external threads is 0.7-1.0 mm, the thread forms are all equilateral triangles, the thread form angle is 60 degrees, and the thread height is 0.866 times of the thread pitch; the external threads of the crown part 21 and the root part 22 close to the corner part 23 become gradually lower, and the external wall of the corner part 23 has no external thread.

The gum penetrating part 32 comprises a labial surface, a mesial surface, a distal surface and a lingual surface, the heights of the labial surface, the mesial surface, the distal surface and the lingual surface are fluctuated and adapted to the anatomical shapes of the labial side, the mesial surface, the distal surface and the lingual side of the tooth implanting area, and the height of the labial surface is the minimum and is 1.0-2.0 mm so as to ensure that the crown edge can be smoothly positioned under the gingival margin of the labial side; the height of the mesial surface and the distal surface is relatively highest and is 1.5-3.5 mm, and the height of the lingual surface is centered and is 1-3 mm; the width of the shoulder 320 is 0.3-0.5 mm; the retaining part 33 is a flat structure matched with the shape of the dental crown of the maxillary anterior tooth, the retaining part 33 sequentially comprises a labial surface, a mesial surface, a distal surface, a lingual surface and a cutting end from the position close to the shoulder 320 to the position far away from the shoulder, the four cutting angles of the cutting end are in a round and blunt shape, the labial surface is in a convex structure, the lingual surface is in a concave structure, the mesial surface, the distal surface and the cutting end (approximate) are in a straight structure, and the channel of the retaining screw 40 penetrates out of the lingual fossa. The height of the retainer 33 is 4-7 mm from the shoulder 320 to the cut end; the maximum diameter of the abutment 30 is 4.5 to 6.5mm (i.e., the diameter of the shoulder 320).

The diameter of the head part 41 is 2.5-3.0 mm, and the height is 1.5-2.0 mm; the transition part of the head part 41 and the screw rod part 42 is a smooth inverted cone inclined plane, and the angle of the cone is 45-60 degrees; the diameter of the screw part 42 is 1.3-1.6 mm, which is slightly smaller than the diameter of the screw part 43 by 1.5-1.8 mm, the length of the screw part 42 is 4-7 mm, and the height of the screw part 43 is 2.5-3.5 mm; the thread pitch of the thread part 43 is 0.35mm or 0.4mm, the thread forms of the thread are all equilateral triangles, the thread form angle is 60 degrees, the thread height is 0.866 times of the thread pitch, and the number of threads of the thread part 43 is 5-6.

The implant crown 50 is a crown which is manufactured according to the clinical occlusion condition in a personalized way, the tissue surface shape of the implant crown is completely the same as that of the retention part of the abutment, the implant crown 50 is bonded to the retention part through an adhesive, the margin line of the implant crown 50 is stopped at the shoulder of the abutment, and after the implant crown is clinically worn, the margin line of the implant crown is generally 0.5-1.0 mm below the gingival margin; the lingual surface of the dental crown is provided with a pore which is communicated with the channel of the retention screw 40 of the abutment, the pore is sealed by resin material, the resin can be removed to expose the channel of the retention screw 40 of the abutment when needed, and the screwdriver is extended into the pore to unscrew the retention screw 40 of the abutment, thereby realizing the maintenance of the implant prosthesis.

The implant 20, the abutment 30 and the abutment retention screw 40 are made of biocompatible metal, metal alloy material or ceramic material; the biocompatible metal, metal alloy and ceramic material are one of pure titanium, pure tantalum, titanium-aluminum-vanadium alloy, tantalum-titanium alloy, zirconium oxide and the like.

The using steps of the double-shaft immediate implantation oral implant are as follows, the tooth root of the maxillary anterior tooth is extracted in a minimally invasive way, the tooth extraction socket is cleaned, a small ball drill is used for fixing a point on the palatal side bone wall of the tooth extraction socket, a triangular needle-shaped bone drill is used for bone bed preparation to reach a proper depth, then a pioneer drill and a twist drill are used for gradually expanding the implantation socket, the direction of the implantation socket is repeatedly confirmed in the operation, and then the double-shaft implant with a proper diameter, length and angle is implanted. Due to the existence of the corner part 23, the implant 20 rotates around the central axis of the root part 22, the rotation radius of the implant 20 is obviously larger than the diameter of the implant, and the larger the corner is, the larger the rotation radius is, so that the implant can be smoothly screwed into the biaxial oral implant by enlarging the implant pit, but the bone wall of the dental extraction pit does not need to be excessively ground, because the size of the root of the tooth is generally obviously larger than the diameter of the implant 20, and the bone wall of the dental extraction pit for blocking the immediate implantation of the biaxial oral implant can be smoothly screwed into the implant by selectively grinding the bone wall of the dental extraction pit. In addition, the CT data of the oral cavity cone beam and the data of the biaxial oral cavity implant can be imported into implant implantation software, the software is used for simulating the screwing of the implant, the bone wall sites blocking the screwing are found out, the clinical preparation of the implant nest is guided, and the blocked bone wall sites are ground during actual implantation, so that the biaxial implant can be implanted smoothly.

After the implant 20 implanted in the alveolar bone is combined with bone tissues, the abutment 30 is connected, the abutment retention screw 40 passes through the abutment 30 and is in place, a torque wrench is adopted to apply 30-35 Ncm torque to the abutment retention screw 40 and screw the abutment retention screw tightly, an implanted dental crown 50 suitable for the occlusion condition in a patient is manufactured, the dental crown 50 is bonded to the abutment 30, after clinical wearing, the marginal line of the dental crown is generally located 0.5-1.0 mm below the gingival margin, a pore channel is reserved on the lingual surface of the dental crown and is communicated with the channel of the abutment retention screw 40, resin materials seal the pore channel, resin can be removed to expose the channel of the abutment retention screw when needed, a screwdriver extends into the pore channel, the abutment retention screw 40 can be unscrewed, and the implanted prosthesis is maintained.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. For example: the shape and structure of the corner portion 23 are adjusted to achieve the effect of the present invention. As another example, the implant 20 is designed as a soft tissue level implant, i.e., the upper end of the implant 20 is a transgingival design with its upper edge above the bone surface. The above should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the scope of the patent.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A double-axis immediate implantation oral implant structure comprising an implant (20), an abutment (30), an abutment retention screw (40), and an implantation crown (50), characterized in that: the implant (20) is of an integrally formed structure and comprises a crown square part (21), a root square part (22) and a corner part (23); the crown part (21) and the root part (22) are smoothly connected through a corner part (23), and the central axes of the crown part (21) and the root part (22) are not collinear and intersect at a certain angle; the crown part (21) and the root part (22) are in a truncated cone-shaped structure, the minimum diameter of the crown part (21) is not smaller than the maximum diameter of the root part (22), the diameter of the crown part (21) is gradually reduced from far to near the corner part (23), and the diameter of the root part (22) is gradually reduced from near to far from the corner part (23); the middle part of one end, far away from the corner part (23), of the crown square part (21) is inwards recessed to form a first connecting part (211) and an internal thread (212), the first connecting part (211) is positioned at the lower end of the internal thread (212), the first connecting part (211) comprises a first cone structure (2111) and a first anti-rotation structure (2112), the first cone structure (2111) is positioned at the lower end of the first anti-rotation structure (2112), and the internal thread (212) is screwed and matched with the retention screw (40); the abutment (30) is sequentially provided with a second connecting part (31), a gum penetrating part (32) and a retaining part (33) from bottom to top, the second connecting part (31) comprises a second cone structure (311) and a second anti-rotation structure (312), the second cone structure (311) and the second anti-rotation structure (312) are respectively matched with the first cone structure (2111) and the first anti-rotation structure (2112), the gum penetrating part (32) is a part which extends from the upper end of the implant (20) to the gum level, the surface of the gum penetrating part (32) is in a smooth and continuous concave shape, the diameter of the surface of the gum penetrating part is gradually increased from the upper end of the implant (20) to the gum level part, the retaining part (33) is in a flat hexahedral structure similar to the shape of the maxillary incisor dental crown of a human body, and a shoulder platform (320) is arranged at the position where the lower end of the retaining part (33) is connected with the upper end of the gum penetrating part (32), a screw channel (34) is arranged in the base station (30); the abutment retaining screw (40) comprises a head part (41), a screw rod part (42) and a screw thread part (43), the diameter of the screw rod part (42) is slightly smaller than that of the head part (41) and the screw thread part (43), the diameter of the screw thread part (43) is the same as that of the internal thread (212), and the surface of the screw rod part (42) is smooth;

the axis of hat side portion (21) and the axis smooth connection of root side portion (22), and the angle of intersection of two axes is 5 ~ 20.

2. The biaxial oral implant structure as set forth in claim 1, wherein: the diameter of one end, far away from the corner part (23), of the crown part (21) is 3.5-4.5 mm, the length of the crown part (21) is 7-9 mm, the diameter of one end, far away from the corner part (23), of the root part (22) is 2.3-3.0 mm, and the length of the root part (22) is 4-6 mm.

3. A biaxial instantaneous implant oral structure as set forth in any one of claims 1 or 2, characterized in that: the height of the first cone structure (2111) is 2-3 mm, and the angle of taper is 6-10 degrees.

4. A biaxial instantaneous implant oral structure as set forth in any one of claims 1 or 2, characterized in that: the second anti-rotation structure (312) is of a hexahedral structure, and the height of the second anti-rotation structure (312) is 1mm, and the thickness of the second anti-rotation structure is 0.4-0.5 mm.

5. The biaxial oral implant structure as set forth in claim 3, wherein: the second anti-rotation structure (312) is of a hexahedral structure, and the height of the second anti-rotation structure (312) is 1mm, and the thickness of the second anti-rotation structure is 0.4-0.5 mm.

6. The biaxial oral implant structure as set forth in claim 1, wherein: the height of the internal thread (212) is 2.5-3 mm, and the diameter is 1.5-1.8 mm.

7. The biaxial oral implant structure as set forth in claim 1, wherein: the width of the shoulder (320) is 0.3-0.5 mm.

8. The biaxial oral implant structure as set forth in claim 1, wherein: the head (41) has a diameter of 2.5 to 3.0mm and a height of 1.5 to 2.0 mm.

9. The biaxial oral implant structure as set forth in claim 1, wherein: the diameter of the screw part (42) is 1.3-1.6 mm, and is slightly smaller than the diameter of the screw part (43) by 1.5-1.8 mm, the length of the screw part (42) is 4-7 mm, and the height of the screw part (43) is 2.5-3.5 mm.

10. The biaxial oral implant structure as set forth in claim 1, wherein: the implant (20), the abutment (30) and the abutment retention screw (40) are made of biocompatible metal, metal alloy material or ceramic material.

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