CN1401299A

CN1401299A - Bone chisel for oral implantation therapy

Info

Publication number: CN1401299A
Application number: CN 02142025
Authority: CN
Inventors: 伊藤辉夫
Original assignee: MI CHANGZHI
Current assignee: MI CHANGZHI
Priority date: 2001-08-20
Filing date: 2002-08-20
Publication date: 2003-03-12
Anticipated expiration: 2022-08-20
Also published as: CN1182815C; TW558435B; JP2003052721A; JP3297042B1

Abstract

A bone chisel for implantation of lower jaw bone is characterized by that the working part of its front rod is bent and a recess is made on the back at the bent position in orter to beat it by hammer.

Description

Oral cavity implanted treatment osteotome

Technical field

The present invention relates to the utensil that uses in the implanted treatment of oral cavity.Especially, relate to the osteotome that is suitable for the lower jaw treatment.

Background technology

In recent years, the oral cavity implanted treatment is learned the development of advancing by leaps and bounds, and in general implantation clinical medicine, when carrying out implant surgery for mandible, owing to there are various obstacles, all can not be competent at well for shortage foreseeability, highly difficult case.

After 1978, the clinical scholar of many implantation of Si Maile etc., adopted following method clinically, promptly cut out the sinus highmori sidewall and peel off, promote the Shi Naide mucosa, transplant various bone material then and implant implant, just lift method (sinus lift:lateral method) at the bottom of the sinus highmori simultaneously.Yet, this operation method because the bone wall of pruning, to the damage of Shi Naide mucosa and bone transplanting degree or the like, and produce serious surgery influence, the burden that brings the patient is big, operating difficulty is also high, and, also lack postoperative predictability.

Here, the implantation fossa forming method that is suitable for the jawbone sclerotin by propositions such as Sa Mosi and Sa Adun in 1994 is hole bed lift method in the sinus highmori (Internal sinus floor lift), these people are had higher evaluation, and the applicant has also accumulated many clinical case experiences so far and has obtained good clinical effectiveness.This operation method adopts special " osteotome ".This operation is called nest lift method (socket lift).

Current, develop, use osteotome with different shape and feature.The promising concavity of front end, convex, hemispherical, taper type etc.As an example of osteotome, be that the osteotome of matrix describes only for front end.Shown in Fig. 1 (a)～(h), handle 1 has stress type (front tooth is used) and corner type (molar is used).Leading section is distinctive spill cuts edge, and the part that plays 4mm from leading section is inverted cone, and diameter increases chap gradually from 1.6mm～2.0mm (can be to 4.5～5.0mm).

Fig. 2 is used to illustrate that front end is the key diagram of its effect of osteotome of spill.Front end is the osteotome of the spill inverted cone of cutting edge, and beats thicker bone and gives as security fashionablely when striking repeatedly, and bone is cut by the side cut of spill, and concave surface give as security into, thus, make bone compression, densification and push away with on it.

For thicker bone, beat by striking, give as security into such operation, shown in Fig. 3 (a)～(d), like that, make bone compression, densification, then bone density increases, and has transformed bone thus, like that, has promoted the sinus highmori bed shown in Fig. 4 (a)～(c).

Fig. 5 is the ideograph at the bottom of expression promotes sinus highmori.Utilize osteotome to strike to beat and on push away bone at the bottom of the hole, bone graft utilizes himself weight and pressure, and exert pressure to the Shi Naide mucosa according to pascal's principle, not only on the direction of principal axis of osteotome, exert pressure, and on a plurality of directions, apply uniform pressure, therefore, the Shi Naide mucosa can not break.

Moreover, as one using example again, when implanting thicker implant, shown in Fig. 6 (a)～(d), can make its expansion, widen or make less bone fracture for narrow bone ridge.

Below, expression nest lift method.

A) curing mainly symptom must be more than 5mm for the vertical bone height at the bottom of from the top of bone to the hole bed.And, should make the scope that can promote at the bottom of the hole bed in 4mm.

B) diameter of the initial osteotome that uses is 1.6～2.0mm, and strikes always and beat until hole bed bone residue 1～2mm.

C) make the diameter chap of osteotome gradually.

D) fill out the insertion bone graft in right amount, and by strike gently repeatedly beat make its compression, on push away.

E) strike and beat while observing deep calibration,, promote thus at the bottom of the hole bed until certain position (degree of depth).

When f) maxillary being implanted, preferably adopt the thicker implant of diameter more than 4mm.When implanted diameter is the implant of 4mm, the time can fix securely in beginning in order to make, make the diameter of osteotome remain on 3.3～3.8mm, then, strike and beat and implanted diameter is the implant of 4mm.

The advantage of this Therapeutic Method is,

1), do not need to adopt bone drill just can form implantation fossa for bone thicker in the maxillary.

2) promoting under the situation of hole, carrying out with the osteotome and the instrument of special use.

3) do not need the bone of pruning.

4) can compress bone (side pressure), densification, transformation, enlarge, widen.

5) little to the infringement of bone.

6) safety in the operation.

Yet the problem of nest lift method is,

1) before operation, is difficult to hold bone density.If for the harder case of sclerotin, dual-purpose low speed water flow inside awl.

2) for thicker bone, owing to impact, directivity easily produces abnormality.

3) when implanting the spiral implant, because the improper use that torque is reversed, it is excessive to make that bone cavity draws back, and directivity easily produces abnormality.

4) can not see the leading section of implant and the position at the bottom of the hole bed.

5) for the patient, stronger impact can make its discomfort.

6) after the maxillary implant is implanted and install under the situation of artificial tooth, at once because for the compressing of hole bed, implant sinks also can cause inclination, mobile.

The present invention uses special osteotome as a kind of new mode in the maxillary implant therapy, can avoid surgical operation to the infringement on the maxillary sclere, and feasible infringement to bone is reduced to Min..

Above-mentioned osteotome is used among the jawbone implant surgery basically.For in the past handle and working end is a collinear osteotome, is difficult to be used in mandible.Though, not to say to be used in mandible, but can dangerous property in treatment.Again, because last jawbone is different with mandible hardness, the instrument that is used for jawbone can not be applicable to mandible.The objective of the invention is to, even if a kind of osteotome that also can use safely for the treatment of mandible is provided.

Summary of the invention

In order to address the above problem, for the osteotome that is used for the oral cavity implanted treatment, it is to be provided with the bending of the part below the bar-shaped work end of osteotome and at this crooked back to strike the groove of beating usefulness with osteotome that oral cavity of the present invention is implanted with treatment.

According to the hardness of mandible, by making that front end is pointed, thus, can obtain better effect.Because osteotome adopts structure of the present invention, can strike mandible safely and beat.

Because handle and working end are crooked largely, when operation, can not hamper maxillary.And, because the sclerotin hardness of mandible is higher, make preferably that also the front end of osteotome is pointed.Moreover, when striking consumingly when beating,, strike and beat the Shi Buhui skew owing to groove is set in the back side of bending portion, can operate safely.

Description of drawings

Fig. 1 (a)～(h) is the key diagram of expression osteotome shape.

Fig. 2 is the figure that is used to illustrate its effect of osteotome of front end spill.

Fig. 3 (a)～(d) is the figure that is used to illustrate its effect of osteotome of front end spill.

Fig. 4 (a)～(c) is the figure that is used to illustrate its effect of osteotome of front end spill.

Fig. 5 is the ideograph of expression maxillary sinus lift.

Fig. 6 (a)～(d) is the key diagram that adopts the method that osteotome enlarges, widens.

Fig. 7 is an example of expression osteotome of the present invention.

Symbol description

1 osteotome

2 work ends

3 handles

4 strike the instrument of beating

5 grooves

The specific embodiment

Fig. 7 is the key diagram that expression adopts osteotome of the present invention to treat.Be connected with handle 3 with the part of work end below 2 bending largely of osteotome 1 and with osteotome 1.Be provided with and the groove 5 that strikes the leading section tabling of the instrument of beating 4 at the back side of bending section.

Fig. 8 is an example profile of expression osteotome of the present invention.In this example, flexibility is about 90 degree, is not limited only to this angle certainly.

Osteotome of the present invention can easily be applied to the bone top portion of mandible because bar-shaped leading section is crooked largely, and, be that fulcrum strikes and beats with the groove of curved back, so can stably operate.Moreover, striking consumingly when beating, owing to groove is set, strikes and do not beat and can be offset in the back side of bending portion, can operate safely.

By adopting osteotome of the present invention, do not need to cut gingiva or strip off gingiva, need not perforate on alveolar bone, operation technique is easy, operation is dangerous less.

Claims

1. oral cavity implanted treatment osteotome, it is to be used to form among the oral cavity implanted treatment of the implantation fossa that is suitable for sclerotin, it is characterized in that,

With the part bending below the bar-shaped work end of described osteotome, and be provided with at the back of described bending and strike the groove of beating usefulness.

2. oral cavity according to claim 1 implanted treatment osteotome is characterized in that,

The front end of described osteotome is pointed.