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Gum removing material

A pigmented, injectable technology for dental preparations, dental prostheses, sustainable waste disposal, etc., which can solve problems such as rapid pulse, harm to patient's gum tissue, and gum injury

Inactive Publication Date: 2007-11-28
BIOTECH ONE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the chemical-mechanical gingival retraction operation, the addition of chemical agents can effectively shrink the tissue or blood vessels temporarily to control the exudation and bleeding of gingival fluid. However, when the drug is used, it will cause local The side effects of tissue damage or impact are unavoidable, such as epinephrine (8%) astringent, which can cause side effects such as increased blood pressure, rapid pulse and injured gums, and research has pointed out that more than 10wt% aluminum chloride astringent will cause Cause serious tissue damage, and make this gingival retraction material containing high-concentration astringent (15wt%) not only easily cause damage to patient's gingival tissue, technically deviate from the design and technology disclosure
[0009] Aiming at the problem that the high concentration of astringent used in the previous technology may harm the patient's gingival tissue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The preparation method of broom fiber is to wind the cellulose fiber with a fineness of 2 deniers (which is defined as the number of grams of fiber weight in 9,000 meters) into a bundle of 1,000,000 deniers and a length of about 1 meter. The fiber machine is cut into 6 mm fiber cut strands, which are mechanically microfibrillated by a disc grinder, so that the fiber presents a multi-layered split-fiber structure, with a long sheet (ribbon), microfibrillation in appearance. Fibrils, barbs, or entangled mixtures of the above shapes, and its structural feature is that the L / D axial ratio (the ratio of length to diameter) is greater than 10, and the typical shape of broom fibers is shown in Figure 1 As shown, the fineness of the broomed fiber is measured according to the test specification of TAPPI T-227, and the Canadian Standard Freeness (CSF) is measured, and the CSF value of the broomed fiber is 102ml.

[0017] When preparing the sample, mix 0.2 grams of aluminum trichl...

Embodiment 2-10

[0022] The preparation of the gingival retraction material is based on the steps and methods of Example 1, the respective content weight percentages of aluminum trichloride astringent, buffed fiber, sodium carbonate flavoring agent, kaolin filler, and water in the components, Change as shown in Table 1. The viscosity test method of the gingival retraction material is also the same as that of Example 1, and the viscosity values ​​of different formulations are summarized in Table 1.

[0023] Based on the simple mechanical method in the early stage, the gingival retraction cord without drugs was directly operated. Although the chemical-mechanical method was proposed in the U.S. Pat. 5,362,495 patent recently, the viscosity was 13×10 6 -30×10 6 cP range, and the wireless gingival retraction technology development of the paste containing 3.6-6.8wt% aluminum chloride astringent, however, the addition of chemical agents can improve the effect of gingival retraction, but it cannot co...

Embodiment 11-12

[0033] The preparation of the gingival retraction material is based on the steps and methods of Example 1, and the respective content weight percentages of the chemical fiber, sodium carbonate flavoring agent, kaolin filler, and water in the components are prepared according to the composition of Table 2. The viscosity test method of the gingival retraction material is also the same as that of Example 1. The evaluation of the effect of the gingival retraction material is carried out with reference to the animal test steps of Comparative Example 1. The viscosity values ​​of different formulations, the gingival retraction effect of the gingival retraction material, and gingival recession The evaluation results of the animal experiments are summarized in Table 2.

[0034] The results show that in Examples 11 and 12, the width of the gingival sulcus before and after use is greater than 0.5mm, showing a high-viscosity gingival retraction material (31.0×10 6 with 54.0×10 6 cP) can ...

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Abstract

The gum removing material capable of being injected contains bloom-shaped fiber with thickening effect, corrective, pigment, kaolin as stuffing and other excipient. It is paste with viscosity of (31-71) E6 cP. It is injected to fill into affected gum trough to expand the gum trough properly, control tissue fluid in gum trough, arrest bleeding and ensure dryness in gum trough, so as to facilitate the subsequent operation of obtaining complete impression and making precise false tooth.

Description

technical field [0001] The present invention relates to the composition of an injectable gingival retraction material containing linear fibres; the gingival retraction material is a paste prepared by using the high-efficiency thickening properties of fibers, and is aimed at the preparation of dentures and prostheses. The required impression operation to obtain a complete grinding edge replica model must temporarily expand the gingival sulcus, and because the elastic impression material is mostly hydrophobic, it can also stop bleeding when applying this material to maintain gingival retraction. Drying after tooth modification to facilitate accurate impression taking. [0002] This technology can be widely used in clinical dentistry, such as cavity filling of class II or class IV, adhesive porcelain veneer, impression taking of crown and bridge, and gingival retraction operation before Maryland bridge adhesion. Such gingival retraction material has The operation is convenient, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/00A61P1/02A61K6/898C04B16/06
CPCA61L27/48A61K6/097A61L2400/06C04B2111/00836C04B16/0608A61K6/0088A61K6/0011C04B30/02A61K6/18A61K6/76A61K6/898A61P1/02Y02W30/91C04B14/106C04B14/20C04B18/24C04B22/148C04B22/149C04B14/042C04B14/10C04B16/0658C04B22/12C04B24/04C08L77/10C08L33/20C08L1/02
Inventor 杨正昌翁青梧林旭廷李宪坤陈俊良李胜扬
Owner BIOTECH ONE
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