CN112807120A - Implant cavity measuring rod and method taking restoration guide under crossing and dislocation of tooth tips as reference - Google Patents

Abstract

The invention discloses an implant cavity measuring rod taking restoration guidance under crossing position of tooth tips as a reference and a method thereof, wherein the measuring rod comprises an intraosseous rod and an occlusion rod; the utility model discloses a tooth occlusion device, including bar in the bone, interlock pole, cavity, the inside cavity of bar in the bone forms well cavity, the interlock pole telescopically inlays and locates cavity intracavity and friction fit, the interlock pole sets up with the bar in the bone coaxial line, the bar in the bone is arranged in imbedding the nest hole and protrusion in the bone face, the interlock pole exceeds the occlusal surface that closes on the tooth and is used for with the counterbalance contact to the tooth, the outer wall of bar in the bone is equipped with the. The method adopts a plurality of measuring rods with increasing diameters, and in the process of gradually reaming the cavity, the cavity is measured once after reaming is finished, and the position, the depth and the axial direction of the cavity and the contact relation between a subsequently implanted implant and the occlusal surface of the involutive teeth are obtained by taking the ideal occlusion state of the malposition of the dental cusp of a patient as a reference. Effectively ensuring the long-term aesthetic, biomechanical and occlusion functional stability of the patient after the implant is implanted.

Description

Implant cavity measuring rod and method taking restoration guide under crossing and dislocation of tooth tips as reference

Technical Field

The invention belongs to the technical field of medical measurement, and particularly relates to an implant cavity measuring rod and method taking restoration guidance under crossing and dislocation of tooth tips as a reference.

Background

Dental implant restoration is widely used in the restoration treatment of missing teeth of patients. A substance implanted in the oral cavity of a patient to replace a missing tooth is called an implant or dental implant. The involution teeth refer to natural teeth which are correspondingly occluded with the implant teeth. In the first operation of implanting the implant, firstly, a cavity is surgically prepared in the alveolar bone at the edentulous position of a patient, and the position, the depth and the axial direction of the cavity influence the occlusion relation of the implant and the involution teeth. Therefore, the position, the depth and the axial direction of the cavity need to be measured and timely adjusted, the implant implanted into the cavity subsequently and the adjacent teeth are ensured to be arranged neatly and beautifully, and the occlusion function of the implant and the involutory teeth is not influenced.

Current implant implantation procedures typically use a long, solid rod of metal to make parallel rods to measure the position, depth and axial orientation of the socket hole. In the operation method, 2-5 parallel rods with increasing diameters are usually used, drilling equipment with increasing diameters is matched, a cavity with the smallest diameter is drilled firstly, the parallel rods are used for measuring, then the hole expanding adjustment is carried out on the cavity step by step, and the parallel rods with corresponding diameters are used for measuring the cavity each time the hole expanding is carried out until the diameter of the cavity reaches the diameter matched with the implant. In a single measurement of the cavity, the physician inserts a measuring rod into the cavity, as shown in fig. 1, for simulating the implantation of the implant. Determining the depth of the cavity by reading the scale numerical value of the outer wall of the parallel rod; observing whether the parallel rod is parallel to the long axis of the adjacent tooth or not from the direction of the near-far middle of the edentulous gap, and whether the parallel rod is positioned at the central position of the edentulous gap or not; and observing whether the parallel rod is positioned at the central position or on a connecting line of the functional tips of the adjacent teeth from the buccolingual direction. And after the position, the depth and the axial direction of the cavity are judged to be proper, the patient is instructed to slightly bite the measuring rod, and the contact position of the subsequently implanted implant and the occlusal surface of the involution tooth is roughly known.

The solid long rod structure of the traditional parallel rod is obviously higher than the occlusal surface of the adjacent tooth crown after being inserted into the cavity. The upper and lower teeth of the patient can not perform ideal occlusion action with staggered tooth tips, only the involutive teeth can slightly contact with the parallel rods, and incomplete occlusion state with larger gaps still remains between the upper and lower teeth of the patient. The contact position of the parallel rod and the occlusal surface of the involution tooth obtained by the observation can have errors compared with the contact position of the implant and the occlusal surface of the involution tooth which are implanted subsequently.

Summary the limitations of conventional parallel bars are:

1. because the parallel rod is too long, the ideal occlusion action of the patient with the staggered tooth tips cannot be carried out, so that the measurement process of the parallel rod does not take the ideal occlusion state as the reference, and further, errors exist between the depth, the position and the axial direction of the cavity measured by the parallel rod and actual parameters in the ideal occlusion state.

2. After the depth, the position and the axial parameters of the cavity are measured by a doctor through the parallel rods, the contact relation between a subsequently implanted implant and the occlusal surface of the involution tooth must be estimated by combining clinical experience to make up errors. The clinical experience of doctors is subjective judgment, and misjudgment is easy to occur to influence the implantation effect of the implant.

3. If the patient is instructed to forcibly bite to the ideal biting state with the interlaced cusps, the parallel rods will be extruded deeply into the bone, the cavity structure will be damaged, and the accuracy of the cavity size will be affected. Meanwhile, the strong compression of the parallel rods can cause bleeding of the marrow cavity, damage to important anatomical structures or difficult follow-up taking out and other adverse accidents.

4. Because the space in the oral cavity of a patient is narrow, the light is insufficient, the visual field is limited, and saliva and blood are fully distributed, when the patient operates in the oral cavity, the parallel rod with small volume easily slides off, and medical accidents such as organ tissue scratch, perforation, bleeding, blockage and the like can be caused after the patient swallows and inhales by mistake.

In view of the above, there is a need for a novel measuring rod, which allows the upper and lower teeth of a patient to perform ideal occlusion with their cusps staggered after the measuring rod is inserted into a cavity, and obtains the depth, position, axial direction of the cavity and the contact relationship between the implant to be implanted and the occlusal surface of the apposition teeth based on the ideal occlusion state.

Disclosure of Invention

The invention aims to provide an implant cavity measuring rod taking dental cusp under-dislocation restoration guide as a reference, wherein the measuring rod is of a telescopic structure, and the measuring rod is shortened to a position flush with the height of an adjacent dental crown by applying occlusion force to a pair of teeth, so that the end part of the measuring rod and the dental cusps of the pair of teeth are in an ideal occlusion relation of staggered fit.

The invention is realized by the following technical scheme:

an implant cavity measuring rod taking restoration guidance under crossing position of tooth tips as a reference comprises an intraosseous rod and an occlusion rod; the utility model discloses a tooth occlusion device, including bar in the bone, interlock pole, cavity, the inside cavity of bar in the bone forms well cavity, the interlock pole telescopically inlays and locates cavity intracavity and friction fit, the interlock pole sets up with the bar in the bone coaxial line, the bar in the bone is arranged in imbedding the nest hole and protrusion in the bone face, the interlock pole exceeds the occlusal surface that closes on the tooth and is used for with the counterbalance contact to the tooth, the outer wall of bar in the bone is equipped with the.

Through the scheme, the invention at least obtains the following technical effects:

compared with the integral long rod structure of the existing measuring rod, the measuring rod provided by the invention has the advantage that the telescopic effect is realized by nesting the two rod structures. The intraosseous rod is used as an outer sleeve rod, and the occlusion rod is used as a core rod of the telescopic part. When the occlusion rod is used, the bone inner rod is inserted into the cavity and partially extends out of the bone surface, and the occlusion rod extends to a dental crown occlusion surface higher than adjacent teeth along the axial direction of the bone inner rod. The patient is ordered to bite the upper and lower teeth, the occlusion rod is slightly compressed into the hollow cavity of the intraosseous rod along with the involutive teeth until the upper and lower teeth of the patient are in an ideal occlusion state with the tips staggered, the frictional force between the outer wall of the occlusion rod and the inner wall of the hollow cavity positions the occlusion rod, and the state that the end part of the occlusion rod is in contact with the occlusal surface of the involutive teeth is kept. The doctor can select a proper angle from the edentulous gap or the periphery of the gap to observe the contact position of the end part of the occluding rod and the occluding surface of the involution teeth. Based on the depth, the position and the axial direction of the cavity and the contact position of the subsequent implant and the occlusal surface of the involution tooth are obtained through the measuring rod. Obtaining a true, accurate, repair-oriented intraoperative bite relationship measurement and adjustment.

Preferably, the intraosseous rod and the occlusion rod are cylindrical rod bodies.

Preferably, the end surface of the occlusion rod contacting with the occlusion surface of the involution teeth is rounded to form a convex arc surface.

Preferably, the end surface of the in-bone rod inserted into the socket hole is subjected to smooth treatment to form a convex arc surface.

Preferably, the gripping bar is a solid bar.

Preferably, the intraosseous rod is detachably connected with the occlusion rod.

Preferably, the graduated scale is provided with a band-shaped identification area.

Preferably, the part of the intraosseous rod protruding out of the surface of the bone is connected with a traction rope.

Preferably, the part of the intraosseous rod protruding out of the surface of the bone is provided with a groove for connecting a traction rope.

The invention also aims to provide an implant cavity measuring method taking the restoration guide under the cusp crossing position as a reference, which replaces an implant with a measuring rod, simulates the perfect occlusion position of the implant and the involutive teeth, and adjusts the position, the depth and the axial angle of a cavity implanted with the implant by taking the perfect occlusion position as the reference.

The invention is realized by the following technical scheme:

a method for measuring an implant cavity by taking a restoration guide under a cusp dislocation as a reference adopts an implant cavity measuring rod by taking the restoration guide under the cusp dislocation as the reference in the scheme, and comprises the following steps:

s1: pre-preparing drilling equipment, a plurality of drill bits with increasing diameters and a plurality of measuring rods corresponding to the diameters of the drill bits before operation;

s2: drilling a hole on the bone at the edentulous position of the patient by using a drill with the minimum diameter, wherein the drilling depth is determined according to the implantation depth of the implant;

s3: taking a measuring rod matched with a drill bit with the minimum diameter, inserting an intraosseous rod into the cavity, wherein one end of the intraosseous rod is abutted against the bottom of the cavity, the other end of the intraosseous rod protrudes out of the bone surface, and the occlusion rod extends to a position higher than the occlusion surface of an adjacent tooth from the end, protruding out of the bone surface, of the intraosseous rod;

s4: ordering the teeth of the patient to be occluded, pressing the occlusion rod against the involutory teeth to enable the involutory teeth to be contracted towards the inside of the hollow cavity until the upper teeth and the lower teeth of the patient are in an ideal occlusion state with the tips staggered, positioning the occlusion rod at the current height by virtue of friction force between the occlusion rod and the inner wall of the hollow cavity, and enabling the end part of the occlusion rod to be abutted against and contacted with the occlusal surface of the involutory teeth;

s5: selecting a proper angle from the gap of the missing tooth or the periphery of the gap to observe the contact position of the end part of the occlusion rod and the occlusal surface of the involutive tooth, observing the position and the axial direction of the measuring rod from the mesial-distal direction and the bucco-lingual direction by taking the contact position as a reference, reading the scale value of the part of the intraosseous rod protruding out of the bone surface, and acquiring the position, the depth and the axial direction of a cavity hole and the contact relation between a subsequently implanted implant and the occlusal surface of the involutive tooth;

s6: taking a second drill bit with the diameter increased gradually, reaming the cavity prepared by the drill bit with the minimum diameter in the step S1, and correcting according to the cavity parameters obtained in the step S5 during reaming;

s7: taking a measuring rod corresponding to the second drill bit in the matching step S6, executing the steps S3-S5, and measuring the reamed cavity again;

s8: sequentially taking the drill bits according to the increasing sequence to perform the step S6 to ream the cavity, and performing the step S7 to select the corresponding matched measuring rod to measure the cavity after reaming the cavity each time;

s9: until the cavity expands to a diameter suitable for implant implantation.

Through the scheme, the invention at least obtains the following technical effects:

the operation method provided by the invention adopts a plurality of measuring rods, a drill bit with the minimum diameter is firstly adopted to drill in the process of preparing the cavity, and then the hole is gradually enlarged and adjusted until the cavity is matched with the implantation size of the implant. And (3) measuring the cavity by using the measuring rod corresponding to the size of the cavity every time of drilling or reaming, and timely acquiring the position, the depth and the axial direction of the cavity and the contact relation between the subsequently implanted implant and the occlusal surface of the involutive teeth. If deviation exists, the adjustment can be carried out in time, and whether the parameters of the hole after hole expansion are perfectly reserved can be checked. Compared with the existing operation method of the measuring rod, the operation method of the invention takes the ideal occlusion state that the teeth are staggered in cusp as the reference, obtains the accurate release relation between the subsequently implanted implant and the occlusion surface of the involution teeth, the implantation depth, the implantation axial direction and the implantation position, and effectively ensures the long-term aesthetics, biomechanics and occlusion functional stability of the implant implanted by the patient. .

The invention has the beneficial effects that:

the measuring rod of the invention enables the teeth of the patient to be occluded to an ideal state with the interlaced cusps through the telescopic structure, and measures the position, the depth and the axial direction of the cavity and the contact relation between the subsequently implanted implant and the occlusion surface of the involuted teeth by taking the ideal state as a reference, thereby obtaining the surgical implantation parameters under the real prosthetic guidance, and effectively ensuring the long-term aesthetics, the biomechanics and the occlusion function stability of the implanted implant of the patient.

According to the operation method, the plurality of telescopic measuring rods are used, in the process of gradually reaming the cavity, the cavity after each reaming is carried out, and cavity parameters are obtained, so that the depth, the axial direction and the position of the cavity can be adjusted in time through reaming, the finally obtained cavity can enable the implantation depth, the implantation position and the implant axial direction of the implant to be in ideal positions, and the ideal occlusion relation between the implant axial direction and the involutive teeth under the condition of cusp dislocation is ensured. The operation process is accurate and safe, and the defects of bottom damage of a cavity, damage to the anatomical structure of a patient, bleeding, difficulty in subsequent taking out, mistaken swallowing and aspiration and the like are avoided. The invention has the advantages of simple function realization, convenient clinical operation, simple process manufacture, detachability, convenience for later maintenance, capability of medical cyclic disinfection and the like, can be recommended to be used as an accessory configuration of the surgical tool box of the implant system, and enriches the accessory product line of the current commercialized implant system.

Drawings

Fig. 1 is a schematic view of a conventional measuring rod according to the present invention.

Fig. 2 is a schematic view of a measuring rod structure provided in an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a measuring rod according to an embodiment of the present invention.

Fig. 4 is a schematic view of the working of the measuring bar in the bucco-lingual direction according to an embodiment of the present invention.

Fig. 5 is a schematic view of the operation of the measuring rod in the proximal-distal direction according to an embodiment of the present invention.

Legend:

1, an intraosseous rod; 2, engaging the rod; 3, forming a cavity; 4, involuting teeth;

11, a hollow cavity; 12 a graduated scale; 13, grooves;

41 closing the occlusal surfaces of the teeth;

121 band-shaped identification areas.

Detailed Description

The invention is further illustrated by the following figures and examples.

Example 1:

as shown in fig. 2 and 3, the present embodiment provides an implant cavity measuring rod using a dental tip malposition lower restoration guide as a reference, which is composed of an intraosseous rod 1 and an occlusion rod 2; the bone inner rod 1 is axially provided with a hollow cavity 11, the occlusion rod 2 is inserted into the hollow cavity 11, so that the central axes of the bone inner rod 1 and the occlusion rod 2 are superposed, and the occlusion rod 2 can stretch and slide in the hollow cavity 11.

As shown in fig. 4 and 5, in the using process, one end of the occlusion rod 2 is inserted into the hollow cavity 11 of the intraosseous rod 1, so as to complete the combination of the two rod structures, and form the complete measuring rod. Then the intraosseous rod 1 is inserted into a prepared cavity 3 in the edentulous gap of a patient, one end of the intraosseous rod 1 inserted into the cavity 3 abuts against the bottom surface of the cavity 3, the other end of the intraosseous rod protrudes out of the cavity 3, and the occlusion rod 2 is telescopically arranged at the end part of the intraosseous rod 1 protruding out of the cavity 3 and extends outwards to a position higher than the occlusal surface of an adjacent tooth.

The patient is instructed to slightly bite the measuring rod, the involutory teeth 4 are pressed against the occlusion rod 2, and the occlusion rod 2 contracts towards the inside of the hollow cavity 11 of the intraosseous rod 1 until the teeth of the patient are in an ideal occlusion state with staggered tooth tips. At this time, the contact position of the end of the occlusion rod 2 and the occlusal surface 41 of the occlusal teeth can be observed from the incisal space or the periphery of the incisal space at an appropriate angle. And taking the depth, the position and the axial parameters of the cavity as reference and obtaining the depth, the position and the axial parameters of the cavity through a measuring rod.

The principle of measuring the depth of the cavity 3 is as follows: the outer wall of the rod in bone 1 is provided with a graduated scale 12, and the graduated scale 12 is printed on the picture layer of the outer wall of the rod in bone 1 so as to ensure that the outer wall of the rod in bone 1 is smooth and avoid the roughness of the outer wall of the rod in bone 1 to cause injury to the inner wall of bone marrow when the rod in bone is inserted into the cavity 3. The 0 scale of the scale 12 is arranged at the end part of the in-bone rod 1 which is propped against the bottom surface of the cavity 3 and extends to the other end along the axial direction of the in-bone rod 1, and the scale value is increased progressively. Be equipped with scale 12 on the outer wall of bar 1 in the bone, the accessible is observed 3 entrance to a cave edges of hole and is read the 3 degree of depth of nest hole in bar 1 bulge remaining scale numerical value in the bone.

In this embodiment, as shown in fig. 2, the numerical value on the graduated scale 12 is sequentially set with the numerical identifiers of 4, 6, 8, 10, 12, 14, 16, and 18 in units of millimeters from the end of the rod 1. Wherein, between 6 graduations and 8 graduations, between 10 graduations and 12 graduations, between 16 graduations and 18 graduations coating with obvious color difference forms banding discernment area 121, increase the identifiability of scale lines and scale numerical value, reduce because of the too dense probability that causes the reading error of scale lines.

The principle of measuring the position of the cavity 3 is: after the intraosseous rod 1 of the measuring rod is embedded into the socket hole 3, the position of the measuring rod represents the position of the socket hole 3, and whether the position of the measuring rod is positioned at the center of the edentulous space or not can be observed from the near-far direction and the buccal-lingual direction of a patient. The mesial-distal direction is the direction facing the outer wall surface of the dentition, and the teeth on the left and right sides of the edentulous space can be observed. The bucco-lingual direction is the side of the dentition, and it can be observed that other teeth in the dentition are all blocked by the foremost tooth in the viewing angle. The plane position of the measuring rod can be accurately positioned by observing the measuring rod from the two directions. Through observing, if the measuring stick all is in the position of centering on two directions, then the position accuracy of nest hole 3 need not the adjustment, if the measuring stick is not in the position of centering on arbitrary direction, then need adjust the reaming in-process of nest hole 3 next time.

The principle of measuring the axial direction of the cavity 3 is as follows: because the diameter of the in-bone rod 1 is matched with that of the socket hole 3 and the in-bone rod is embedded in the socket hole 3, the central axes of the in-bone rod 1, the occlusion rod 2 and the socket hole 3 are collinear and have the same axial direction. This axial direction also represents the axial direction of a subsequently implanted implant in the pocket 3. Whether the measuring rod is parallel to the long axis direction of the adjacent tooth or not can be observed from the direction of the near-far middle of the edentulous gap of the patient and the direction of the cheek tongue, if the measuring rod is deflected greatly, the measuring rod needs to be adjusted in the next hole expanding process of the cavity 3, and therefore the implant implanted into the cavity 3 can be orderly and attractive in arrangement with the adjacent tooth.

The measuring rod is a measuring medium for replacing the position of the implant, and the end part of the occlusion rod 2 is the same as the position of the cusp of the implant simulation tooth. And the ideal occlusion state is that the cusp portions of the implant and the cusp portions of the apposing teeth 4 are interfitted. Therefore, when the end of the occlusion rod 2 is brought into contact with the cusps of the mating teeth 4 when the contact position of the end of the occlusion rod 2 and the occlusal surface 41 of the mating teeth is observed, it means that the cusp portion of the implant is in contact with the cusp portion of the mating teeth 4, and an ideal occlusion state cannot be achieved, and it is necessary to adjust the relevant parameters during the hole enlargement of the socket hole 3. If the end of the occlusion rod 2 is interfitted with the cusp portion of the apposition teeth 4, it represents an ideal occlusion state in which the implant and the apposition teeth 4 can achieve the cusp interdigitation. Can keep 3 the unchangeable prerequisite of each item parameters in cave hole under reaming to test after reaming at every turn, avoid the reaming in-process to produce the error and influence the cave hole parameter, finally obtain the cave hole 3 that accords with the planting body and implant the size, and implant the planting body.

It is worth mentioning that the outer wall of the occlusion rod 2 and the inner wall of the hollow cavity 11 are in contact friction, and the friction coefficient between the outer wall of the occlusion rod 2 and the inner wall of the hollow cavity 11 needs to be moderate, so that the friction force generated between the outer wall of the occlusion rod and the inner wall of the hollow cavity can ensure that the position of the occlusion rod 2 in the hollow cavity 11 is kept unchanged when the occlusion rod is not pressed by the involuted teeth, and the bone marrow inner cavity is not strongly pressed to cause damage due to overlarge resistance.

Example 2:

in order to reduce the discomfort of the patient during the treatment and reduce the probability of medical accidents, the measurement rod scheme provided in example 1 is improved in the following details:

the cavity 3 is a circular hole drilled into a bone from the surface of a tooth missing gap, and the in-bone rod 1 and the occlusion rod 2 are both of cylindrical rod structures.

The end surface of the occlusion rod 2 contacting with the occlusion surface 41 of the involution teeth is smoothly processed to form a convex arc surface.

The end surface of the bone inner rod 1 inserted into the cavity 3 is smoothened to form a convex cambered surface

As shown in fig. 2, 3, 4 and 5, the two rods are set as cylindrical rods, and the surfaces of the two rods contacting with the tissue structure are subjected to smooth processing, so that all edges and corners at the transition positions of the rod bodies and the end surfaces of the two rods are removed, and the tissue structure in the oral cavity of the patient is prevented from being damaged by the sharp edges when the measuring rod is inserted or slightly bitten by the patient.

The meshing rod 2 is a solid rod; and the occlusion rod 2 and the intraosseous rod 1 are both made of metal capable of medical disinfection.

Because the measuring stick needs to bear the bite force of certain degree, if the material intensity of bite pole 2 and intraosseous pole 1 is not enough, arbitrary deformation that takes place all can seriously influence measuring result. Even after the two rods are deformed, the two rods can be difficult to take out, which increases the difficulty of the implant implantation operation. Therefore, the two rods are made of metal materials, and the adopted metal materials can bear high-frequency disinfection and sterilization treatment without influencing the strength and are not easy to be oxidized and rusted. Wherein, the occlusion rod 2 which bears the occlusion force frequently and moves frequently adopts a solid rod structure, thereby further enhancing the structural strength.

As shown in figure 2, the part of the bone inner rod 1, which is exposed out of the socket 3, is provided with a groove 13, and a traction rope is arranged through the groove 13.

Because the measuring stick small in size, consequently set up annular recess 13 at the outer wall of intraosseous pole 1, haulage rope one end is cyclic annular and encircles and locate in recess 13 and cramp, promotes the stability of being connected of haulage rope and measuring stick, avoids measuring stick and haulage rope separation. The other end of the traction rope can be sleeved on the wrist of the doctor in an annular shape, and can also be tied to the hand of the doctor in a single-wire structure. The intraosseous rod 1 is connected with the hands of a doctor, so that the measuring rod is prevented from accidentally sliding off in the operation process and falling into the throat of a patient to be swallowed or sucked by mistake.

Example 3:

this example provides a method for measuring a cavity of an implant based on a restoration guide under a crossing tooth cusp position, which adopts the measurement rod scheme described in example 1 or example 2, and implements the following steps, wherein a 4.8mm diameter implant is planned to be implanted in a gap between missing teeth of a patient. As shown in fig. 4 and 5.

The method comprises the following steps: before the planting operation, a pioneer drill bit, a hole expanding drill bit and a plurality of corresponding matched measuring rods are prepared in advance. Wherein the pioneer drill bit is prepared with a diameter of 2.2mm and a diameter of 2.8mm, and the reaming drill bit is prepared with a diameter of 3.5mm and a diameter of 4.2 mm. The diameter of the measuring rod corresponding to each drill bit is respectively 2.2mm, 2.8mm, 3.5mm and 4.2 mm.

Step two: selecting a pioneer drill with the diameter of 2.2mm to be assembled on a drilling machine, drilling at an operation site in the edentulous space of a patient, and preparing a cavity 3 with the diameter of 2.2mm, wherein the drilling depth is determined according to the implantation depth of the implant.

Step three: the measuring rod with the diameter of 2.2mm is completely combined and then is moved into the mouth of a patient, one end of the intraosseous rod 1 in the measuring rod is inserted into the cavity 3 with the diameter of 2.2mm, one end of the intraosseous rod 1 is supported at the bottom of the cavity 3, the other end of the intraosseous rod is protruded out of the cavity 3, and the occlusion rod 2 extends to a position higher than the occlusal surface of the adjacent tooth from one end of the intraosseous rod 1 protruded out of the cavity 3.

Step four: ordering the patient to bite, pressing the occlusion rod 2 against the involutive teeth 4 to enable the involutive teeth to shrink towards the hollow cavity 11, until the upper and lower teeth of the patient are in an ideal occlusion state with the cusps staggered, positioning the occlusion rod 2 at the current height by virtue of the friction force between the occlusion rod 2 and the inner wall of the hollow cavity 11, and enabling the end part of the occlusion rod 2 to be abutted against and contacted with the involutive teeth occlusal surface 41.

Step five: and selecting a proper angle from the edentulous gap or the periphery of the gap to observe the contact position of the end part of the occlusion rod 2 and the occlusal surface 41 of the involution tooth, observing the position and the axial direction of the measuring rod from the near-far direction and the bucco-lingual direction by taking the contact position as a reference, reading the scale value of the part of the intraosseous rod 1 protruding out of the bone surface, and acquiring the position, the depth and the axial direction of the cavity 3 and the contact relation between the subsequently implanted implant and the occlusal surface 41 of the involution tooth.

Step six: a2.8 mm diameter pioneer bit is selected to be assembled on a drilling machine, and a previously drilled cavity 3 with a diameter of 2.2mm is reamed to expand the diameter of the cavity 3 to 2.8 mm. In the reaming operation process, the central axis of the original cavity 3 is used as a datum line, and according to cavity parameters obtained in the fifth step, the central axis of the pioneer drill with the diameter of 2.8mm and the datum line deflect by a certain correction angle, so that the inclination angle, the position and the depth of the central axis of the cavity 3 after reaming are slightly adjusted and changed compared with those of the previous cavity 3.

Step seven: selecting a measuring rod with the diameter of 2.8mm, executing the third step, the fourth step and the fifth step again, matching the measuring rod with the diameter of 2.8mm with the cavity 3 with the diameter of 2.8mm, and acquiring cavity parameters by observing the measuring rod under the ideal occlusion state that the teeth of the patient are staggered in cusps.

Step eight: and sequentially taking drill bits with the diameters of 3.5mm and 4.2mm according to the increasing sequence, carrying out the operation of the sixth step to ream the cavity hole 3, carrying out the operation of the seventh step after reaming is finished every time, and respectively taking measuring rods with the diameters of 3.5mm and 4.2mm to measure the cavity hole 3.

Step nine: a cavity of 4.2mm diameter is the final cavity that fits a 4.8mm diameter implant. After the measurement of the cavity 3 with the diameter of 4.2mm is finished, the measuring rod is taken out, and the subsequent step of implanting the implant is carried out.

Various technical features in the above embodiments may be arbitrarily combined as long as there is no conflict or contradiction in the combination between the features, but is limited to the space and is not described one by one.

The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides an implant nest hole measuring stick of direction as benchmark is restoreed under tooth point dislocation which characterized in that: comprises an intraosseous rod and an occlusion rod; the utility model discloses a tooth occlusion device, including bar in the bone, interlock pole, cavity, the inside cavity of bar in the bone forms well cavity, the interlock pole telescopically inlays and locates cavity intracavity and friction fit, the interlock pole sets up with the bar in the bone coaxial line, the bar in the bone is arranged in imbedding the nest hole and protrusion in the bone face, the interlock pole exceeds the occlusal surface that closes on the tooth and is used for with the counterbalance contact to the tooth, the outer wall of bar in the bone is equipped with the.

2. The tip dislocation under-restoration guide-based implant cavity measuring rod according to claim 1, wherein the intraosseous rod and the occlusal rod are cylindrical rods.

3. The cusp malocclusion under repair guide-based implant cavity measurement bar of claim 2, wherein the end surface of said occlusion bar contacting the occlusal surface of the apposition teeth is rounded to form a convex arc surface.

4. The tip dislocation under-restoration guide-based implant cavity measuring rod as claimed in claim 2, wherein the end surface of the stem insertion cavity is rounded to form a convex arc surface.

5. The under-the-cusp restoration guide-referenced implant cavity measurement rod of claim 1, wherein said occlusal rod is a solid rod.

6. The under-tip malposition restoration guide-referenced implant cavity measurement rod of claim 1, wherein the intraosseous rod is removably attached to the occlusal rod.

7. The under-the-cusp restoration guide-referenced implant cavity measurement stick as claimed in claim 1, wherein said graduated scale is provided with a band-shaped identification area.

8. The tip dislocation under-restoration guide-based implant cavity measuring rod as claimed in claim 1, wherein the portion of the intraosseous rod protruding from the bone surface is connected with a traction rope.

9. The cusp dislocation inferior repair guide-based implant cavity measurement rod as claimed in claim 8, wherein the portion of the intraosseous rod protruding from the facet is grooved for connection with a traction rope.

10. A method for measuring implant cavity under tip dislocation restoration guide as a reference, characterized in that the method for measuring implant cavity under tip dislocation restoration guide as a reference according to any one of claims 1 to 9 is used, further comprising the steps of:

s1: pre-preparing drilling equipment, a plurality of drill bits with increasing diameters and a plurality of measuring rods corresponding to the diameters of the drill bits before operation;

s2: drilling a hole on the bone at the edentulous position of the patient by using a drill with the minimum diameter, wherein the drilling depth is determined according to the implantation depth of the implant;

s3: taking a measuring rod matched with a drill bit with the minimum diameter, inserting an intraosseous rod into the cavity, wherein one end of the intraosseous rod is abutted against the bottom of the cavity, the other end of the intraosseous rod protrudes out of the bone surface, and the occlusion rod extends to a position higher than the occlusion surface of an adjacent tooth from the end, protruding out of the bone surface, of the intraosseous rod;

s4: ordering the teeth of the patient to be occluded, pressing the occlusion rod against the involutory teeth to enable the involutory teeth to be contracted towards the inside of the hollow cavity until the upper teeth and the lower teeth of the patient are in an ideal occlusion state with the tips staggered, positioning the occlusion rod at the current height by virtue of friction force between the occlusion rod and the inner wall of the hollow cavity, and enabling the end part of the occlusion rod to be abutted against and contacted with the occlusal surface of the involutory teeth;

s5: selecting a proper angle from the gap of the missing tooth or the periphery of the gap to observe the contact position of the end part of the occlusion rod and the occlusal surface of the involutive tooth, observing the position and the axial direction of the measuring rod from the mesial-distal direction and the bucco-lingual direction by taking the contact position as a reference, reading the scale value of the part of the intraosseous rod protruding out of the bone surface, and acquiring the position, the depth and the axial direction of a cavity hole and the contact relation between a subsequently implanted implant and the occlusal surface of the involutive tooth;

s6: taking a second drill bit with the diameter increased gradually, reaming the cavity prepared by the drill bit with the minimum diameter in the step S1, and correcting according to the cavity parameters obtained in the step S5 during reaming;

s7: taking a measuring rod corresponding to the second drill bit in the matching step S6, executing the steps S3-S5, and measuring the reamed cavity again;

s8: sequentially taking the drill bits according to the increasing sequence to perform the step S6 to ream the cavity, and performing the step S7 to select the corresponding matched measuring rod to measure the cavity after reaming the cavity each time;

s9: until the cavity expands to a diameter suitable for implant implantation.

Images