Bone-supported double-ring implant surgical guide and use method thereof

Abstract

The present invention relates to the field of oral implant surgery technology, and specifically to a bone-supported double-ring implant surgical guide, which includes a bone-supported window guide and a double-ring implant guide. The bone-supported window guide is provided with a first window, and a plurality of first retaining nail rings are arranged on the bone-supported window guide. The first retaining nail ring is embedded with a metal ring, and a retaining nail hole is arranged at the bottom of the metal ring; a second window is provided on the double-ring implant guide, and a zygomatic ring is arranged around the second window. The double-ring implant guide is connected with an alveolar ridge top ring, and a plurality of second retaining nail rings are arranged on the double-ring implant guide, and a retaining nail hole is arranged at the bottom of the second retaining nail ring. The use of the guide has the advantages of high positioning accuracy, long dental drill restraint length, no swinging and side sliding during implant hole preparation, and high implant hole preparation accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of oral implant surgery, and in particular to a bone-supported double-ring implant surgery guide plate and a use method thereof. Background Art

[0002] In general, the maxillary bones of patients who undergo zygomatic implant surgery are often accompanied by extremely severe bone resorption, and mucosa-supported guides are usually used for zygomatic implant surgery. However, when using mucosa-supported guides, problems such as maxillary atrophy, mucosa quality, reduced jaw support area, and mucosa mobility can lead to errors after the mucosa-supported guide is in place, thereby causing deviations in the implant site.

[0003] At the same time, the traditional mucosa-supported guide guides the preparation of the implant hole through the restraining effect of the metal collar. The longer the metal collar is, the better the restraint effect and the higher the accuracy. However, due to the limitations of the patient's mouth opening and the length of the tool, the metal collar cannot be made long enough for oral implant surgery. The literature currently reports that the commonly used traditional implant surgical guide is only a collar on the top of the alveolar ridge, and the height of the collar on the top of the alveolar ridge is mostly about 5mm. Compared with the zygomatic implant surgical drill that is more than 50mm, the restraint ability is very limited. During the preparation of the implant hole, the swing of the drill and the side slip of the drill at the base of the zygomatic bone are the main reasons for the positioning error.

[0004] Therefore, there is an urgent need for a bone-supported double-ring implant surgical guide. Summary of the invention

[0005] The present invention provides a bone-supported double-ring implant surgical guide and a method for using the guide to solve the problems of positioning errors, lack of accurate positioning landmarks, limited length of metal rings, large swings of the dental drill and sideways sliding of the dental drill at the zygomatic base during the implant hole preparation process in oral zygomatic implant surgery.

[0006] In order to achieve the above-mentioned object, the present invention provides a bone-supported double-ring implant surgical guide in a first aspect, the guide comprising: a bone-supported fenestration guide and a double-ring implant guide;

[0007] The bone-supported window opening guide plate is provided with a first window body for locating the window opening range of the outer wall of the maxillary sinus, and the bone-supported window opening guide plate is provided with a plurality of first retaining nail collars, wherein a metal collar is embedded in the first retaining nail collar, and a retaining nail hole is provided at the bottom of the metal collar for the retaining nail to penetrate and fix the position of the bone-supported window opening guide plate;

[0008] A second window for locating the window opening range of the outer wall of the maxillary sinus is formed on the double-ring implantation guide plate, a zygomatic ring is arranged around the second window, an alveolar ridge top ring for use with the zygomatic ring is connected to the double-ring implantation guide plate, so as to expand the restraining length of the dental drill, a plurality of second retaining nail rings are arranged on the double-ring implantation guide plate, and the retaining nail holes are formed at the bottom of the second retaining nail rings, so as to allow the retaining nails to penetrate into and fix the position of the double-ring implantation guide plate.

[0009] Preferably, the bone-supported window guide is the same size as the double-ring implant guide, and the first window and the second window are the same size and are both rectangular.

[0010] Preferably, the number of the first retaining nail collar and the number of the second retaining nail collar are no less than three;

[0011] The distribution position of the metal ring on the bone-supported window guide is the same as the distribution position of the second retaining nail ring on the double-ring implantation guide.

[0012] Preferably, the plurality of first retaining nail collars are all arranged on the same end surface of the bone-supported fenestration guide plate, and the plurality of second retaining nail collars are all arranged on the same end surface of the double-ring implantation guide plate.

[0013] Preferably, the inner diameter of the first retaining nail ring is 3-5mm, the outer diameter is 6-8mm, and the height is 4-6mm; the inner diameter of the metal ring is 2-2.2mm, the outer diameter is 3-5mm, and the height is 4-6mm; the inner diameter of the second retaining nail ring is 2-2.2mm, and the outer diameter is 3-5mm.

[0014] Preferably, the zygomatic ring is arranged around the second window through a connecting block, and the alveolar crest ring is connected to the double-ring implantation guide plate through a connecting rod;

[0015] Wherein, the zygomatic bone ring and the alveolar ridge top ring are arranged in a matching manner, and the zygomatic bone ring and the alveolar ridge top ring are not less than one set to meet clinical needs.

[0016] Preferably, the distance between the zygomatic collar and the alveolar crest collar is greater than 20 mm, and the central axes of the zygomatic collar and the alveolar crest collar are in a straight line, so as to extend the restraining length of the dental drill.

[0017] Preferably, the inner diameters of the zygomatic ring and the alveolar crest ring are both 2.9-3.0 mm, and the outer diameters are both 4.8-5.0 mm. The height of the zygomatic ring is 1.5-5.5 mm, and the height of the alveolar crest ring is 4-6 mm.

[0018] Preferably, the bone-supported fenestration guide is made of plastic material, and the double-ring implantation guide is made of metal material.

[0019] A second aspect of the present invention provides a method for using a bone-supported double-ring implant surgical guide. The method is implemented using the above-mentioned bone-supported double-ring implant surgical guide. The method comprises:

[0020] S1) performing anesthesia, and turning the full-thickness flap after anesthesia until there is no muscle blocking the installation of the bone-supported fenestration guide;

[0021] S2) fitting the bone-supported fenestration guide plate to the jawbone according to the surface morphology of the jawbone, then using a retaining screw drill to sequentially prepare holes on the jawbone through a plurality of the metal rings, and installing latch-type retaining screws after the holes are prepared, so as to fix the bone-supported fenestration guide plate on the jawbone;

[0022] S3) using an ultrasonic bone knife to open a window on the outer wall of the maxillary sinus according to the size of the first window, after the window is opened, pulling out the latch-type retaining screw and removing the bone-supported window opening guide, uncovering the bone window and then completely peeling off the maxillary sinus mucosa;

[0023] S4) installing the double-ring implantation guide plate according to the surface morphology of the jawbone and the plurality of prepared holes in step S2, and installing the latch-type retaining screws respectively, so that the double-ring implantation guide plate and the bone-supported fenestration guide plate are fixed at the same position;

[0024] S5) preparing a hole for implantation: using a first spiral drill to prepare a hole at the top of the alveolar ridge through the alveolar ridge top ring, replacing a circular grinding needle drill after completion, and positioning the zygomatic bone entry point on the upper wall of the maxillary sinus through the alveolar ridge top ring and the zygomatic bone ring, and then using the first spiral drill to prepare a hole through the alveolar ridge top ring and the zygomatic bone ring according to the zygomatic bone entry point positioning, wherein the depth of the prepared hole is the designed depth of the zygomatic implant;

[0025] S6) pulling out the pin-type retaining screw, removing the double-ring implant guide, and using the first pilot drill to prepare holes by free hand according to the hole preparation points at the top of the alveolar ridge and the zygomatic end in step S5, and in combination with the near / middle / distal edges of the lateral wall window of the maxillary sinus in step S3, wherein the hole preparation depths are all the designed depths of the zygomatic implants;

[0026] S7) according to the hole preparation points at the alveolar ridge top and the zygomatic end in step S6, and in combination with the near / middle / distal edges of the fenestration on the lateral wall of the maxillary sinus in step S3, free-hand hole preparation is performed using a second spiral drill, wherein the hole preparation depth is the designed depth of the zygomatic implant;

[0027] S8) The implant holes are prepared and the zygomatic implants are placed.

[0028] According to the above technical scheme, the bone-supported double-ring implant surgical guide is used. In actual application, first, the bone-supported window guide is installed on the jaw, and a window is opened on the outer wall of the maxillary sinus through the first window using an ultrasonic bone knife. After the window is opened, the bone-supported window guide is removed, and the maxillary sinus mucosa is completely peeled off. Then, the double-ring implant guide and the bone-supported window guide are fixed at the same position of the jaw, and then, holes are prepared at the top of the alveolar ridge and the zygomatic end by replacing different dental drills. After completion, the double-ring implant guide is removed, and then, holes are prepared freely by replacing different dental drills at the hole preparation points at the top of the alveolar ridge and the zygomatic end until the hole preparation is completed, and finally the zygomatic implant is implanted. The implant has the advantages of high positioning accuracy, long dental drill restraint length, no swinging and side slipping during implant hole preparation, and high implant hole preparation accuracy.

[0029] At the same time, the use of bone support overcomes the problem of errors caused by mucosal elasticity in traditional mucosa-supported guides; the coverage of the bone-supported double-ring implant surgical guide is limited to the high-density and uniform bone cortex on the buccal side of the maxilla, and does not include the low-density alveolar ridge, thereby ensuring that the bone-supported double-ring implant surgical guide fits precisely with the jawbone; further, the coverage of the bone-supported double-ring implant surgical guide reaches the anterior inferior edge of the zygomatic arch and the inner side of the anterior nasal spine, which can be used to indicate the anatomical landmarks after the bone-supported double-ring implant surgical guide is in place.

[0030] By providing a latch-type retaining pin, the stability of the bone-supported fenestration guide and the double-ring implantation guide after being in place on the jaw is ensured, and the distribution position of the metal ring on the bone-supported fenestration guide is the same as the distribution position of the second retaining pin ring on the double-ring implantation guide, ensuring that the bone-supported fenestration guide and the double-ring implantation guide are precisely positioned at the same position on the jaw.

[0031] The range of the fenestration on the lateral wall of the maxillary sinus is precisely located by means of the bone-supported double-ring implant surgical guide through-windowing; the left and right boundaries of the quasi-rectangular window are parallel to the central axis of the zygomatic implant, which can be used to confirm whether the directions of the free-hand prepared hole and the implantation of the zygomatic implant are offset in steps S6 to S8; at the same time, the upper and lower boundaries of the quasi-rectangular window are designed according to the anatomical morphology of the upper and lower walls of the maxillary sinus, which can minimize the range of the windowing while ensuring the stripping of the mucosa of the upper wall of the maxillary sinus and the mucosa of the sinus floor, thereby reducing surgical trauma.

[0032] The double-ring implant guide adopts a double-ring design of an alveolar ridge top ring and a zygomatic bone ring, so that the equivalent restraint length of the dental drill is greater than 27 mm, which far exceeds the restraint length of the 5 mm ring of the traditional mucosa-supported guide, solves the problems of large swinging of the dental drill and side sliding of the zygomatic base during the implant hole preparation process, and ensures the accuracy of the implant hole preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of a bone-supported double-ring implant surgical guide;

[0034] Figure 2 It is a structural schematic diagram of a bone-supported fenestration guide of a bone-supported double-ring implant surgical guide;

[0035] Figure 3 It is an enlarged structural schematic diagram of the bone-supported fenestration guide plate A of the bone-supported double-ring implant surgical guide plate;

[0036] Figure 4 It is a structural schematic diagram of a double-ring implantation guide of a bone-supported double-ring implantation surgical guide;

[0037] Figure 5 It is an enlarged structural schematic diagram of the double-ring implantation guide B of the bone-supported double-ring implantation surgical guide;

[0038] Figure 6 It is a schematic diagram of the structure of the alveolar crest ring of the bone-supported double-ring implant surgical guide;

[0039] Figure 7 It is a schematic diagram of the structure of the zygomatic ring of the bone-supported double-ring implant surgical guide;

[0040] Figure 8 It is a flowchart of the method of using a bone-supported double-ring implant surgical guide.

[0041] Description of Reference Numerals

[0042] Bone-supported window guide 1; double-ring implantation guide 2; first window 3; second window 4;

[0043] Zygomatic bone ring 5; alveolar crest ring 6; first retaining nail ring 7; metal ring 8;

[0044] A second retaining nail collar 9; a connecting rod 10; and a connecting block 11. DETAILED DESCRIPTION

[0045] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0046] In the present invention, unless otherwise stated, directional words such as "up, down, left, right" generally refer to Figure 1 The bone-supported double-ring implant surgical guide is shown in the upper, lower, left and right directions.

[0047] The first aspect of the present invention provides a bone-supported double-ring implant surgical guide, such as Figure 1-7 As shown, the bone-supported double-ring implant surgical guide plate comprises a bone-supported window guide plate 1 and a double-ring implant guide plate 2;

[0048] The bone-supported fenestration guide plate 1 is provided with a first window body 1 for positioning the fenestration range of the outer wall of the maxillary sinus, and the bone-supported fenestration guide plate 1 is provided with a plurality of first retaining nail collars 7, wherein the first retaining nail collars 7 are embedded with metal collars 8, and the bottom of the metal collars 8 is provided with retaining nail holes for the retaining nails to penetrate and fix the position of the bone-supported fenestration guide plate 1;

[0049] The double-ring implantation guide 2 is provided with a second window 2 for locating the window opening range of the outer wall of the maxillary sinus, and a zygomatic ring 5 is arranged around the second window 2. The double-ring implantation guide 2 is connected with an alveolar ridge top ring 6 for use with the zygomatic ring 5 to expand the restraining length of the dental drill, and the double-ring implantation guide 2 is provided with a plurality of second retaining nail rings 9, and the bottom of the second retaining nail rings 9 is provided with the retaining nail holes for the retaining nails to penetrate and fix the position of the double-ring implantation guide 2.

[0050] According to the above technical scheme, the bone-supported double-ring implant surgical guide is used. In actual application, first, the bone-supported window guide is installed on the jaw, and a window is opened on the outer wall of the maxillary sinus through the first window using an ultrasonic bone knife. After the window is opened, the bone-supported window guide is removed, and the maxillary sinus mucosa is completely peeled off. Then, the double-ring implant guide and the bone-supported window guide are fixed at the same position of the jaw, and then, holes are prepared at the top of the alveolar ridge and the zygomatic end by replacing different dental drills. After completion, the double-ring implant guide is removed, and then, holes are prepared freely by replacing different dental drills at the hole preparation points at the top of the alveolar ridge and the zygomatic end until the hole preparation is completed, and finally the zygomatic implant is implanted. The implant has the advantages of high positioning accuracy, long dental drill restraint length, no swinging and side slipping during implant hole preparation, and high implant hole preparation accuracy.

[0051] According to a preferred embodiment of the present invention, the bone-supported window guide 1 is the same size as the double-ring implantation guide 2, and the first window 1 and the second window 2 are the same size and are both rectangular.

[0052] Furthermore, the number of the first retaining nail collar 7 and the number of the second retaining nail collar 9 are no less than three;

[0053] The distribution position of the metal ring 8 on the bone-supported fenestration guide plate 1 is the same as the distribution position of the second retaining nail ring 9 on the double-ring implantation guide plate 2 .

[0054] Furthermore, a plurality of the first retaining nail rings 7 are all arranged on the same end surface of the bone-supported fenestration guide plate 1 , and a plurality of the second retaining nail rings 9 are all arranged on the same end surface of the double-ring implantation guide plate 2 .

[0055] Furthermore, the inner diameter of the first retaining nail ring 7 is 3-5mm, the outer diameter is 6-8mm, and the height is 4-6mm. The inner diameter of the metal ring 8 is 2-2.2mm, the outer diameter is 3-5mm, and the height is 4-6mm. The inner diameter of the second retaining nail ring 9 is 2-2.2mm, and the outer diameter is 3-5mm.

[0056] In the embodiment of the present invention, the left and right boundaries of the first rectangular window 1 and the second rectangular window 2 are parallel to the central axis of the zygomatic implant, which can be used to confirm whether the direction of the free hand preparation hole and the zygomatic implant implantation is offset, and the upper and lower boundaries of the first rectangular window 1 and the second rectangular window 2 are designed according to the anatomical morphology of the upper wall and the lower wall of the maxillary sinus, which can minimize the window opening range on the basis of ensuring the peeling of the mucosa of the upper wall of the maxillary sinus and the mucosa of the sinus floor, thereby reducing surgical trauma. Further, the first retaining nail ring 7 and the second retaining nail ring 9 are preferably three, and the distribution position of the metal ring 8 on the bone-supported window opening guide 1 is the same as the distribution position of the second retaining nail ring 9 on the double-ring implantation guide 2, which is used to fix the double-ring implantation guide 2 and the bone-supported window opening guide 1 at the same position on the jaw under the action of the retaining nail to ensure the stability of the implant preparation hole. Furthermore, the inner diameter of the first retaining nail ring 7 is preferably 4 mm, the outer diameter is preferably 7 mm, and the height is preferably 5 mm. The inner diameter of the metal ring 8 is preferably 2 mm, the outer diameter is preferably 4 mm, and the height is preferably 5 mm. The inner diameter of the second retaining nail ring 9 is preferably 2 mm, and the outer diameter is preferably 4 mm.

[0057] According to a preferred embodiment of the present invention, the zygomatic ring 5 is arranged around the second window 2 through a connecting block 11, and the alveolar crest ring 6 is connected to the double-ring implantation guide plate 2 through a connecting rod 10;

[0058] The zygomatic bone ring 5 and the alveolar ridge top ring 6 are matched with each other, and there is at least one set of the zygomatic bone ring 5 and the alveolar ridge top ring 6 to meet clinical needs.

[0059] Furthermore, the distance between the zygomatic collar 5 and the alveolar crest collar 6 is greater than 20 mm, and the central axes of the zygomatic collar 5 and the alveolar crest collar 6 are in a straight line, so as to increase the restraint length of the dental drill.

[0060] Furthermore, the inner diameters of the zygomatic ring 5 and the alveolar crest ring 6 are both 2.9-3.0 mm, and the outer diameters are both 4.8-5.0 mm. The height of the zygomatic ring 5 is 1.5-5.5 mm, and the height of the alveolar crest ring 6 is 4-6 mm.

[0061] In the embodiment of the present invention, Figure 1 As shown, the zygomatic collar 5 and the alveolar crest collar 6 are matched and arranged, and according to clinical needs, the zygomatic collar 5 and the alveolar crest collar 6 are preferably two sets, wherein, specifically, one of the zygomatic collar 5 is arranged on the inner side of the second window, and the other is relatively arranged on the double collar implantation guide plate 2. Further, the distance between the zygomatic collar 5 and the alveolar crest collar 6 is more than 20 mm, and the central axes of the zygomatic collar 5 and the alveolar crest collar 6 are in a straight line, so as to guide the position of the dental drill while expanding the restraining length of the dental drill, and avoid the dental drill from swinging and sliding sideways at the base of the zygomatic bone during the implantation hole preparation process. Further, the inner diameter of the zygomatic collar 5 and the alveolar crest collar 6 are preferably 2.9 mm, and the outer diameter is preferably 4.9 mm. The height of the zygomatic collar 5 is preferably 2-5 mm, and the height of the alveolar crest collar 6 is preferably 5 mm.

[0062] According to a preferred embodiment of the present invention, the bone-supported fenestration guide plate 1 is made of plastic material, and the double-ring implantation guide plate 2 is made of metal material.

[0063] In the embodiment of the present invention, except for the metal collar 8 which is made of metal, all other parts of the bone-supported fenestration guide plate 1 are made of plastic. The metal collar 8 is made of metal to prevent the dental drill from damaging the first retaining nail collar 7 when the dental drill passes through the metal collar 8 to prepare a hole in the jawbone, thereby saving costs. All parts of the double-ring implantation guide plate 2 are made of metal to ensure the accuracy of the implantation hole preparation.

[0064] The second aspect of the present invention also provides a method for using a bone-supported double-ring implant surgical guide. The method is implemented using the bone-supported double-ring implant surgical guide. Figure 8 As shown, the method comprises the following steps:

[0065] S1) performing anesthesia, and turning the full-thickness flap after anesthesia until there is no muscle blocking the installation of the bone-supported fenestration guide plate 1;

[0066] Specifically, the anesthesia in step S1 includes: precise sedation and analgesia anesthesia + posterior superior alveolar nerve block anesthesia + infraorbital nerve block anesthesia + local infiltration anesthesia.

[0067] S2) according to the surface morphology of the jaw, the bone-supported fenestration guide plate 1 is fitted to the jaw, and then a retaining screw drill is used to prepare holes on the jaw in sequence through a plurality of the metal collars 8, and after the holes are prepared, the latch-type retaining screws are respectively installed to fix the bone-supported fenestration guide plate 1 on the jaw;

[0068] Specifically, in step S2, a retaining screw drill is used to sequentially pass through the metal collar 8 and the retaining screw hole at the bottom of the metal collar 8 to prepare a hole on the jawbone. In the present invention, preferably there are three hole preparation points on the jawbone to ensure that the bone-supported window guide plate 1 is stably fixed on the jawbone. Furthermore, the pin-type retaining screw has a variety of specifications, exemplarily, 1.5mm×16mm, 1.5mm×20mm, 1.8mm×16mm, 2.0mm×16mm and 2.0mm×20mm, etc., wherein different specifications of the pin-type retaining screws are used in conjunction with their corresponding retaining screw drills.

[0069] S3) using an ultrasonic bone knife to open a window on the outer wall of the maxillary sinus according to the size of the first window 3, after the window is opened, pulling out the latch-type retaining nails and removing the bone-supported window opening guide plate 1, uncovering the bone window and then completely peeling off the maxillary sinus mucosa;

[0070] S4) according to the surface morphology of the jawbone and the several prepared holes in step S2, the double-ring implantation guide plate 2 is installed, and the latch-type retaining screws are installed respectively, so that the double-ring implantation guide plate 2 and the bone-supported fenestration guide plate 1 are fixed at the same position;

[0071] S5) preparing a hole for implantation: using a first spiral drill to prepare a hole at the top of the alveolar ridge through the alveolar ridge top ring 6, replacing a circular grinding needle drill after completion, and positioning the zygomatic bone entry point on the upper wall of the maxillary sinus through the alveolar ridge top ring 6 and the zygomatic bone ring 5, and then using the first spiral drill to prepare a hole through the alveolar ridge top ring 6 and the zygomatic bone ring 5 according to the zygomatic bone entry point positioning, wherein the depth of the prepared hole is the designed depth of the zygomatic implant;

[0072] Specifically, the first spiral drill in step S5 is a 2.9 mm spiral drill, and the circular grinding needle drill is a 2.9 mm circular grinding needle drill. The drill bit of the first spiral drill is passed through the alveolar ridge top ring 6, and a hole is prepared at the top of the alveolar ridge until the designed depth of the zygomatic implant is reached. After completion, the drill bit of the circular grinding needle drill is passed through the alveolar ridge top ring 6 and the zygomatic bone ring 5 in turn, and the zygomatic bone entry point on the upper wall of the maxillary sinus is fixed. After completion, the drill bit of the first spiral drill is passed through the alveolar ridge top ring 6 and the zygomatic bone ring 5 in turn according to the zygomatic bone entry point, and a hole is prepared until the designed depth of the zygomatic implant is reached.

[0073] S6) pulling out the pin-type retaining nail, removing the double-ring implantation guide plate 2, and using the first pilot drill to prepare holes by free hand according to the hole preparation points at the top of the alveolar ridge and the zygomatic end in step S5, and in combination with the near / middle / distal edges of the fenestration on the outer wall of the maxillary sinus in step S3, wherein the hole preparation depths are all the designed depths of the zygomatic implants;

[0074] Specifically, in step S6, during the freehand hole preparation process, the long axis of the first pilot drill is always kept parallel to the near / middle / distal edges of the fenestration on the side wall of the maxillary sinus. Further, the first pilot drill is a 3.5 mm pilot drill.

[0075] S7) according to the hole preparation points at the alveolar ridge top and the zygomatic end in step S6, and in combination with the near / middle / distal edges of the fenestration on the lateral wall of the maxillary sinus in step S3, free-hand hole preparation is performed using a second spiral drill, wherein the hole preparation depth is the designed depth of the zygomatic implant;

[0076] Specifically, in step S7, during the freehand hole preparation process, the long axis of the second auger is always kept parallel to the near / middle / distal edges of the fenestration on the side wall of the maxillary sinus. Further, the second auger is a 3.5 mm auger.

[0077] S8) The implant holes are prepared and the zygomatic implants are placed.

[0078] In the embodiment of the present invention, the first spiral drill, the circular grinding needle drill, the first pilot drill and the second spiral drill are all Zygoma dental drills of the Primemark system, and the hole preparation speed is the speed recommended by the product manual.

[0079] The following is a detailed description with reference to a specific embodiment.

[0080] Example 1

[0081] There are three of each of the first retaining nail ring 7 and the second retaining nail ring 9. The first retaining nail ring 7 has an inner diameter of 4 mm, an outer diameter of 7 mm, and a height of 5 mm. The metal ring 8 has an inner diameter of 2 mm, an outer diameter of 4 mm, and a height of 5 mm. The second retaining nail ring 9 has an inner diameter of 2 mm and an outer diameter of 4 mm. The inner diameters of the zygomatic ring 5 and the alveolar crest ring 6 are both 2.9 mm, and the outer diameters are both 4.9 mm. The height of the zygomatic ring 5 is 2 mm, and the height of the alveolar crest ring 6 is 5 mm.

[0082] S1) performing precise sedation and analgesia + superior alveolar posterior nerve block anesthesia + infraorbital nerve block anesthesia + local infiltration anesthesia, and after the anesthesia is completed, turning the full-thickness flap until there is no muscle blocking the installation of the bone-supported fenestration guide plate 1;

[0083] S2) according to the surface morphology of the jaw, the bone-supported fenestration guide plate 1 is fitted to the jaw, and then a retaining screw drill is used to sequentially pass through the first metal ring 8 and the retaining screw hole to prepare holes on the jaw, and this step is repeated to sequentially prepare holes at three preparation points on the jaw, and after the preparation of the holes is completed, 2.0 mm × 16 mm pin-type retaining screws are respectively installed to fix the bone-supported fenestration guide plate 1 on the jaw;

[0084] S3) using an ultrasonic bone knife to open a window on the outer wall of the maxillary sinus according to the size of the first window 3, after the window is opened, pulling out the latch-type retaining nails and removing the bone-supported window opening guide plate 1, uncovering the bone window and then completely peeling off the maxillary sinus mucosa;

[0085] S4) according to the surface morphology of the jaw and the three prepared holes in step S2, the double-ring implantation guide plate 2 is installed, and the latch-type retaining screws are respectively installed, so that the double-ring implantation guide plate 2 and the bone-supported fenestration guide plate 1 are fixed at the same position;

[0086] S5) preparing a hole for implantation: the drill bit of the first spiral drill is passed through the alveolar crest top collar 6, and a hole is prepared at the top of the alveolar crest until the designed depth of the zygomatic implant is reached. After completion, the drill bit of the circular abrasive drill is passed through the alveolar crest top collar 6 and the zygomatic bone collar 5 in sequence, and the zygomatic bone entry point on the upper wall of the maxillary sinus is positioned. After completion, the drill bit of the first spiral drill is passed through the alveolar crest top collar 6 and the zygomatic bone collar 5 in sequence according to the zygomatic bone entry point positioning, and a hole is prepared until the designed depth of the zygomatic implant is reached;

[0087] S6) pulling out the latch-type retaining screw, removing the double-ring implantation guide plate 2, and using the first pilot drill to prepare holes by free hand according to the hole preparation points at the top of the alveolar ridge and the zygomatic end in step S5, and in combination with the near / middle / distal edges of the lateral wall window of the maxillary sinus in step S3, and always keeping the long axis of the first pilot drill parallel to the near / middle / distal edges of the lateral wall window of the maxillary sinus during the hole preparation process, wherein the hole preparation depth is the designed depth of the zygomatic implant;

[0088] S7) according to the hole preparation points at the alveolar ridge top and the zygomatic end in step S6, and in combination with the near / middle / distal edges of the fenestration on the lateral wall of the maxillary sinus in step S3, use a second spiral drill to prepare holes by free hand, and always keep the long axis of the second spiral drill parallel to the near / middle / distal edges of the fenestration on the lateral wall of the maxillary sinus during the hole preparation process, wherein the hole preparation depth is the designed depth of the zygomatic implant;

[0089] S8) The implant holes are prepared and the zygomatic implants are placed.

[0090] Based on the bone-supported double-ring implant surgical guide, the efficiency of oral zygomatic implant surgery is greatly improved, and it has the advantages of high precision and safety.

[0091] The bone-supported double-ring implant surgical guide and method provided by the present invention, in actual application, first, the bone-supported window guide is installed on the jaw, and a window is opened on the outer wall of the maxillary sinus through the first window using an ultrasonic bone knife, the bone-supported window guide is removed after the window opening is completed, and the maxillary sinus mucosa is completely peeled off, then the double-ring implant guide and the bone-supported window guide are fixed at the same position of the jaw, and then, holes are prepared at the top of the alveolar ridge and the zygomatic end by replacing different dental drills, and the double-ring implant guide is removed after completion, and then, different dental drills are replaced at the hole preparation points at the top of the alveolar ridge and the zygomatic end, and holes are prepared by free hand respectively until the hole preparation is completed, and finally the zygomatic implant is implanted, which has the advantages of high positioning accuracy, long dental drill restraint length, no swinging and side slipping during implant hole preparation, and high implant hole preparation accuracy.

[0092] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A bone-supported double-ring implant surgical guide, characterized in that: The bone-supported double-ring implant surgical guide plate comprises: a bone-supported window guide plate (1) and a double-ring implant guide plate (2); The bone-supported fenestration guide plate (1) is provided with a first window (3) for positioning the fenestration range of the outer wall of the maxillary sinus, and the bone-supported fenestration guide plate (1) is provided with a plurality of first retaining screw collars (7), wherein the first retaining screw collars (7) are embedded with metal collars (8), and the bottom of the metal collars (8) is provided with retaining screw holes for the retaining screws to penetrate and fix the position of the bone-supported fenestration guide plate (1); The double-ring implantation guide (2) is provided with a second window (4) for locating the window opening range of the outer wall of the maxillary sinus, a zygomatic ring (5) is arranged around the second window (4), the double-ring implantation guide (2) is connected with an alveolar crest ring (6) for use in conjunction with the zygomatic ring (5) to extend the restraining length of the dental drill, and the double-ring implantation guide (2) is provided with a plurality of second retaining nail rings (9), the bottom of the second retaining nail rings (9) is provided with the retaining nail holes for the retaining nails to penetrate and fix the position of the double-ring implantation guide (2); The bone-supported window guide (1) is the same size as the double-ring implant guide (2), and the first window (3) and the second window (4) are the same size and are both rectangular; The number of the first retaining nail collar (7) and the number of the second retaining nail collar (9) are no less than three; The distribution position of the metal ring (8) on the bone-supported fenestration guide plate (1) is the same as the distribution position of the second retaining nail ring (9) on the double-ring implantation guide plate (2).

2. The bone-supported double-ring implant surgical guide according to claim 1, characterized in that: A plurality of the first retaining nail collars (7) are all arranged on the same end surface of the bone-supported window guide plate (1), and a plurality of the second retaining nail collars (9) are all arranged on the same end surface of the double-ring implantation guide plate (2).

3. The bone-supported double-ring implant surgical guide according to claim 1, characterized in that: The first retaining nail ring (7) has an inner diameter of 3-5 mm, an outer diameter of 6-8 mm, and a height of 4-6 mm; the metal ring (8) has an inner diameter of 2-2.2 mm, an outer diameter of 3-5 mm, and a height of 4-6 mm; the second retaining nail ring (9) has an inner diameter of 2-2.2 mm, and an outer diameter of 3-5 mm.

4. The bone-supported double-ring implant surgical guide according to claim 1, characterized in that: The zygomatic ring (5) is arranged around the second window (4) via a connecting block (11), and the alveolar crest ring (6) is connected to the double-ring implantation guide plate (2) via a connecting rod (10); Wherein, the zygomatic bone ring (5) and the alveolar ridge top ring (6) are arranged in a matching manner, and the zygomatic bone ring (5) and the alveolar ridge top ring (6) are not less than one set, so as to be applicable to clinical needs.

5. The bone-supported double-ring implant surgical guide according to claim 1, characterized in that: The distance between the zygomatic collar (5) and the alveolar crest collar (6) is greater than 20 mm, and the central axes of the zygomatic collar (5) and the alveolar crest collar (6) are in a straight line, so as to increase the restraining length of the dental drill.

6. The bone-supported double-ring implant surgical guide according to claim 1, characterized in that: The inner diameters of the zygomatic bone ring (5) and the alveolar crest ring (6) are both 2.9-3.0 mm, and the outer diameters are both 4.8-5.0 mm. The height of the zygomatic bone ring (5) is 1.5-5.5 mm, and the height of the alveolar crest ring (6) is 4-6 mm.

7. The bone-supported double-ring implant surgical guide according to claim 1, characterized in that: The bone-supported window opening guide plate (1) is made of plastic material, and the double-ring implantation guide plate (2) is made of metal material.

8. A method for using a bone-supported double-ring implant surgical guide, the method being implemented using the bone-supported double-ring implant surgical guide as claimed in any one of claims 1 to 7, characterized in that: The method includes: S1) performing anesthesia, and after the completion of anesthesia, turning the full-thickness flap until there is no muscle obstruction to the installation of the bone-supported fenestration guide (1); S2) according to the surface morphology of the jawbone, the bone-supported fenestration guide plate (1) is fitted to the jawbone, and then a retaining screw drill is used to prepare holes in the jawbone through a plurality of the metal rings (8) in sequence, and after the holes are prepared, pin-type retaining screws are respectively installed to fix the bone-supported fenestration guide plate (1) on the jawbone; S3) using an ultrasonic bone knife to open a window on the outer wall of the maxillary sinus according to the size of the first window (3), after the window is opened, removing the latch-type retaining screw and removing the bone-supported window opening guide (1), uncovering the bone window and then completely peeling off the maxillary sinus mucosa; S4) according to the surface morphology of the jawbone and the plurality of prepared holes in step S2, the double-ring implantation guide plate (2) is installed, and the latch-type retaining screws are respectively installed, so that the double-ring implantation guide plate (2) and the bone-supported fenestration guide plate (1) are fixed at the same position; S5) Implant hole preparation: using a first spiral drill to prepare a hole at the top of the alveolar ridge through the alveolar ridge top ring (6), replacing the circular grinding needle drill after completion, and positioning the zygomatic bone entry point on the upper wall of the maxillary sinus through the alveolar ridge top ring (6) and the zygomatic bone ring (5), and then using the first spiral drill to prepare a hole through the alveolar ridge top ring (6) and the zygomatic bone ring (5) according to the zygomatic bone entry point positioning, wherein the preparation depth is the designed depth of the zygomatic implant; S6) pulling out the pin-type retaining screw, removing the double-ring implant guide plate (2), and using the first pilot drill to prepare holes by free hand according to the hole preparation points at the top of the alveolar ridge and the zygomatic end in step S5, and in combination with the near / middle / distal edges of the fenestration on the outer wall of the maxillary sinus in step S3, wherein the hole preparation depth is the designed depth of the zygomatic implant; S7) Based on the hole preparation points at the top of the alveolar ridge and the zygomatic end in step S6, and in combination with the near / middle / distal edges of the fenestration on the lateral wall of the maxillary sinus in step S3, free-hand hole preparation is performed using a second spiral drill, wherein the hole preparation depth is the designed depth of the zygomatic implant; S8) The implant holes are prepared and the zygomatic implants are placed.

Images