渗透树脂处理釉质白垩斑的表面粗糙度及颜色稳定性

发布时间：2018-04-20 15:54

本文选题：树脂类 + 合成　；参考：《北京大学学报(医学版)》2014年01期

【摘要】：目的:探讨渗透树脂治疗后,釉质白垩斑表面粗糙度、表面抗着色能力及其相关因素。方法:选取人第三磨牙30颗,环氧树脂包埋,暴露3个大于1 mm2的区域(A点、B点和C点)。将样本按脱矿时间分为3组(1 d,2d,3 d),每组10颗,染色液浸泡21 d。分别测量正常釉质A点、渗透树脂B点以及脱矿病损C点染色前的表面粗糙度,以及染色前后的国际照明委员会(Commission Internationaled’Eclairage,CIE)L*a*b*值。结果:3组样本渗透树脂B点表面粗糙度分别为(0.15±0.021)μm、(0.31±0.03)μm和(0.40±0.02)μm,3组样本脱矿病损C点表面粗糙度分别为(1.07±0.10)μm、(2.89±0.13)μm和(3.41±0.14)μm。各组样本B点和C点表面粗糙度均随着脱矿时间延长而增加,组间差异分别有统计学意义(P0.01)。3组样本染色前B点与正常釉质A点的色差逐渐增加,差异有统计学意义(P0.01),且组1 B点与正常釉质之间色差小于3.7,而其余两组色差大于3.7。染色后组1、组2 B点与正常釉质色差小于3.7,而组3色差大于3.7,组1、组2之间的色差差异无统计学意义,但和组3色差的差异有统计学意义(P0.01)。结论:病损的脱矿程度不但能够影响渗透树脂对白垩斑即刻的遮盖效果,并且能够影响其表面粗糙度以及其颜色稳定性;渗透树脂病损表面粗糙度较正常釉质高,有利于病损表面白垩斑的长期遮盖效果。
[Abstract]:Objective: To investigate the surface roughness of glaze Cretaceous and its surface anti coloring ability and its related factors after osmotic resin treatment. Methods: 30 teeth of third molars, epoxy resin embedded and 3 areas greater than 1 mm2 (A, B and C) were exposed. The samples were divided into 3 groups (1 D, 2D, 3 D), 10 of each group, and the dyeing solution was soaked 21 D. to measure respectively. A point of normal enamel, B point of osmotic resin and the surface roughness before C point dyeing of demineralized lesion, and the value of Commission Internationaled 'Eclairage, CIE L*a*b* before and after dyeing. Results: the surface roughness of the 3 groups of samples is (0.15 + 0.021) mu m, (0.31 + 0.03) mu m and (0.40 + 0.02) micron, 3 groups of samples The surface roughness of the C point of demineralization was (1.07 + 0.10) mu m, (2.89 + 0.13) mu m and (3.41 + 0.14) M., the surface roughness of B and C points increased with the prolongation of the demineralization time. The difference between the groups was statistically significant (P0.01) and the difference between the B points and the normal glaze A points was gradually increased before the dyeing of the.3 group (P). The difference was statistically significant (P) 0.01) and the color difference between the 1 B points and the normal enamel was less than 3.7, but the color difference between the other two groups was 1, the color difference between the 2 B points and the normal enamel was less than 3.7, and the color difference between the group 3 was greater than 3.7 and the group 1 was 1. The difference of color difference between the group 2 and the group 3 was not statistically significant (P0.01). Conclusion: the demineralization degree of the lesion is not only significant (P0.01). Conclusion: the demineralization degree of the lesion is not only significant (P0.01). Conclusion: the demineralization degree of the lesion is not only significant (P0.01). Conclusion: the demineralization degree of the lesion is not only significant (P0.01). Conclusion: the demineralization degree of the lesion is not only significant, but the degree of demineralization of the lesion is not only significant. It can affect the immediate covering effect of the permeable resin on the Cretaceous spot, and can affect the surface roughness and its color stability, and the surface roughness of the osmosis resin is higher than the normal enamel, which is beneficial to the long-term covering effect of the Cretaceous spot on the damaged surface.

【作者单位】：北京大学口腔医学院·口腔医院综合科;北京大学口腔医学院·口腔医院牙体牙髓科;
【分类号】：R783.5

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