An Air Gun Impression-Taking Method Without Gingival Retraction Cord
A technology of air gun and impression, which can be applied in compression molding cups, medical science, dental prosthesis, etc. It can solve the problems of easily damaged combined epithelial structure, low degree of personalization, difficult operation, etc., and achieve good aesthetic restoration effect
Active Publication Date: 2022-01-11
杨桐
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is that the existing impression method of pre-embedded gingival retraction cord has the problems of low degree of personalization, difficult operation, and easy damage to the combined epithelial structure
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[0038] The present invention provides an air gun model-taking method without using gum retraction cord. The free gingiva in the neck of the tooth is separated by the air gun, and light silica gel is injected into the separation gap to obtain a clear impression of the neck of the tooth and the edge of the shoulder. Improving the accuracy of the impression data without causing trauma to the gum tissue. The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0039] like figure 1 As shown, the air gun impression-taking method of exempting from gum retraction cord provided by the present invention comprises the following steps:
[0040] S1. Obtain the initial impression;
[0041] Specifically, the following steps are included:
[0042] Adjust the patient's position;
[0043] Choose a tray suitable for the patient's mouth, and apply heavy silicone to the tray;
[0044] It is placed in the patient's mouth ...
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The invention discloses an air gun impression-taking method without using gum retraction cord, which comprises the following steps: obtaining an initial impression; trimming the initial impression to reserve space for detailed impression materials; The working area of the dentition; use an air gun to separate the free gingiva of the tooth neck tissue, and inject light silica gel into the separation gap; obtain the final impression. In the present invention, after the initial impression is obtained, the free gingiva of the neck of the tooth is separated by an air gun, and light silica gel is injected into the separation gap to obtain a clear impression of the neck of the tooth and the edge of the shoulder, which is accurately sent to the laboratory Provide clinical data and make it possible to make tight restorations; at the same time, it will not cause trauma to gingival tissue and secondary gingival recession, which is conducive to obtaining better aesthetic restoration results.
Description
technical field [0001] The invention relates to the technical field of dental restoration, in particular to an air gun impression-taking method without using a gum retraction cord. Background technique [0002] In the clinical operation of fixed restorations, especially in the aesthetic restoration of anterior teeth, the collection of impressions is one of the very important steps, and it is the link between clinic and laboratory. Only a clear and complete impression can produce a clear model, which provides the possibility for the technician to make accurate restorations. [0003] The difficulty in clinical impression collection is to obtain the shape of the tooth neck and shoulder edge located at the gingival margin or subgingival. Existing studies have proved that the depth of the gingival sulcus is 0.5-2mm. The appropriate force for periodontal probing is 20-25g, otherwise it is easy to damage the junctional epithelium at the bottom of the gingival sulcus, causing blee...
Claims
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IPC IPC(8): A61C9/00
CPCA61C9/0006A61C9/0033A61C9/0026
Inventor 李宇飞杨桐
Owner 杨桐