CN105030358A - Preparation method of digitized oral abutment - Google Patents

Abstract

The invention provides a preparation method of a digitized oral abutment. The method comprises the following steps: drilling and polishing a base point by a mobile phone; scanning the oral cavity of a patient by an intraoral scanner; carrying out model trimming and abutment shape design by software after scanning, and storing a file; introducing the file stored in the step (c) into tool path calculation software; with the base point labeled in the step (a) as an initial point of the tool path, directly introducing the calculated tool path file into a control system of an automatic tooth preparation machine; enabling a machine needle of the automatic tooth preparation machine to be vertically aligned at the base point in an occlusalf surface, processing the tool path file in the step (b) and beginning to cut to prepare the abutment; and cutting and finishing preparation of the abutment. Preparation of the oral abutment is carried out by digitalized automation equipment; and tooth injuries caused by human factors are avoided.

Description

A kind of digitalized oral cavity abutment preparation method

Technical field

The present invention relates to area of medical devices, particularly a kind of oral cavity abutment preparation method.

Background technology

Existing oral cavity abutment preparation method many dependences doctor maneuver is with experience, and difficulty of starting with is large, and it is more that anthropic factor produces error, mainly contains following deficiency:

(1) the standby tooth time is long, and half an hour at least, at most a few hours, patient suffers pain large;

(2) some doctors experiences are not enough, cannot reach stable preparation, there will be and prepare track rough discontinuous situation during standby tooth;

(3) doctor is not the place determined very much at some, can carry out standby tooth by rule of thumb, cause unnecessary error with conjecture;

(4) cannot contrast occlusion during standby tooth, the occlusion space of preparation may be not enough.

Summary of the invention

Produce the more problem of error for solving anthropic factor in existing abutment preparation process, the present invention proposes a kind of digitalized oral cavity abutment preparation method.

Technical scheme of the present invention is achieved in that

A kind of digitalized oral cavity abutment preparation method, comprises the following steps:

Step (a), uses mobile phone to bore and grinds basic point;

Step (b), uses mouth interscan instrument to scan patient's oral condition;

Step (c), uses software to carry out cast trimming and abutment form Design, preserves file after scanning;

Step (d), the file preserved in step (c) is imported cutter track software for calculation, and in step (a), the basic point of mark is as cutter track starting point, and the cutter track file calculated will directly import the control system of standby tooth machine automatically;

Step (e), by automatically for the basic point in tooth locomotive pin perpendicular alignmnet jaw face, starts the cutter track file in step (d), starts cutting and prepare abutment;

Step (f), cutting completes, and completes abutment preparation.

Alternatively, the step using mouth interscan instrument to scan patient's oral condition, comprising: lower jaw scanning, upper jaw scanning, occlusion scanning, and the place preparing abutment is carried out both sides and faced tooth and scan jaw tooth.

Alternatively, use software to carry out the step of cast trimming and abutment form Design after scanning, comprising:

Step (c1), cast trimming: use dressing tool, cut away from abutment, scan incomplete region, the gum portion of 2mm below edge line is deleted; Check whether the occlusion of scanning stings tightly, as occlusion does not tightly need to rescan;

Step (c2), abutment form Design: be cut into by abutment trapezoidal and there is not Dao Ao district, uses wax spatula instrument to repair; Maxillary region divide according to occluding relation reserve occlusion space; Smooth tool is used to carry out smooth treatment by repairing the abutment subtracted.

Alternatively, in described step (e), actionradius be 0.1 car pin cut.

The invention has the beneficial effects as follows:

(1) prepare abutment by software design, preview in advance, can not abutment be damaged because of artificial or other factors or face tooth;

(2) operating time is short, and the preparation process of each abutment only needs 1 to 2 minutes, drops to minimum by the pain of patient;

(3) precision of equipment high (cutting degree of accuracy is 10 microns), there will not be abutment surface uneven, rough situation;

(4) mouth interscan instrument is used can to see whole dental arch clearly, without the need to using the aids such as mouth mirror, simple to operate;

(5) cutting effect can be observed by software preview in some uncertain place of tooth and determine cutting position.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the flow chart of a kind of digitalized oral cavity abutment of the present invention preparation method.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

Utilizing before method of the present invention prepares abutment, doctor and patient do preparation before standby tooth, use lower jaw on oral cavity mouth gag immobilized patients, dry up with the saliva of air gun by dental arch surface.

Next, carry out standby tooth by digitalized oral cavity abutment preparation method of the present invention, as shown in Figure 1, comprise the following steps:

Step (a), uses high speed handpiece to bore one, mill perpendicular to jaw level for the 0.1mm diameter hole that is 0.15mm is as Home basic point.

Step (b), uses 3Shape mouth interscan instrument to scan patient's oral condition, and comprise lower jaw scanning, upper jaw scanning, occlusion scanning, rescanning is carried out in the place preparing abutment, comprises both sides and faces tooth and to jaw tooth.

Step (c), uses software to carry out cast trimming and abutment form Design, specifically comprises the following steps after scanning:

Step (c1), cast trimming: use dressing tool, cut away from abutment, scan incomplete region, the gum portion of 2mm below edge line is deleted; Check whether the occlusion of scanning stings tightly, as occlusion does not tightly need to rescan;

Step (c2), abutment form Design: making baking-ceramic tooth then abutment needs switchback to fall 1.5mm-1.8mm, if complete crown tooth switchback space is 0.3mm-0.8mm, design principle is cut into by abutment trapezoidal and there is not Dao Ao district, use wax spatula instrument to repair, it is minimum close to minima (porcelain 1.5mm, complete crown 0.3mm) that cervical region is repaired, cut end portion finishing maximum close to maximum (porcelain 1.8mm, complete crown 0.8mm); Maxillary region divide according to occluding relation reserve occlusion space (porcelain 1.8mm, complete crown 0.8m); Using smooth tool to carry out smooth treatment by repairing the abutment subtracted, making abutment surface continuous and smooth, prepare tooth by these data with method, the artificial tooth that post-production goes out and former tooth similarity are 86%, preservation file.

Step (d), the file preserved in step (c) is imported cutter track software for calculation, and in step (a), the basic point of mark is as cutter track starting point, and the cutter track file calculated will directly import the control system of standby tooth machine automatically.

Step (e), by the Home basic point in automatic standby tooth locomotive pin perpendicular alignmnet jaw face, starting device power supply, starts the cutter track file in step (d), starts cutting and prepare abutment, actionradius be 0.1 car pin cut.

Step (f), cutting completes, and completes abutment preparation.

Digitalized oral cavity abutment preparation method of the present invention, simple to operate, preparation time is short, patient's pain is little, and precision is high, can not cause unnecessary damage because of anthropic factor.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (4)

1. a digitalized oral cavity abutment preparation method, is characterized in that, comprises the following steps:

Step (a), uses mobile phone to bore and grinds basic point;

Step (b), uses mouth interscan instrument to scan patient's oral condition;

Step (c), uses software to carry out cast trimming and abutment form Design, preserves file after scanning;

Step (d), the file preserved in step (c) is imported cutter track software for calculation, and in step (a), the basic point of mark is as cutter track starting point, and the cutter track file calculated will directly import the control system of standby tooth machine automatically;

Step (e), by automatically for the basic point in tooth locomotive pin perpendicular alignmnet jaw face, starts the cutter track file in step (d), starts cutting and prepare abutment;

Step (f), cutting completes, and completes abutment preparation.

2. digitalized oral cavity abutment preparation method as claimed in claim 1, it is characterized in that, the step using mouth interscan instrument to scan patient's oral condition, comprising: lower jaw scanning, upper jaw scanning, occlusion scanning, and the place preparing abutment is carried out both sides and faced tooth and scan jaw tooth.

3. digitalized oral cavity abutment preparation method as claimed in claim 1, is characterized in that, uses software to carry out the step of cast trimming and abutment form Design, comprising after scanning:

Step (c1), cast trimming: use dressing tool, cut away from abutment, scan incomplete region, the gum portion of 2mm below edge line is deleted; Check whether the occlusion of scanning stings tightly, as occlusion does not tightly need to rescan;

Step (c2), abutment form Design: be cut into by abutment trapezoidal and there is not Dao Ao district, uses wax spatula instrument to repair; Maxillary region divide according to occluding relation reserve occlusion space; Smooth tool is used to carry out smooth treatment by repairing the abutment subtracted.

4. digitalized oral cavity abutment preparation method as claimed in claim 1, is characterized in that, in described step (e), actionradius be 0.1 car pin cut.