本文選題：樹脂類 + 合成�。� 參考：《北京大學(xué)學(xué)報(醫(yī)學(xué)版)》2014年01期

【摘要】：目的:探討滲透樹脂治療后,釉質(zhì)白堊斑表面粗糙度、表面抗著色能力及其相關(guān)因素。方法:選取人第三磨牙30顆,環(huán)氧樹脂包埋,暴露3個大于1 mm2的區(qū)域(A點、B點和C點)。將樣本按脫礦時間分為3組(1 d,2d,3 d),每組10顆,染色液浸泡21 d。分別測量正常釉質(zhì)A點、滲透樹脂B點以及脫礦病損C點染色前的表面粗糙度,以及染色前后的國際照明委員會(Commission Internationaled’Eclairage,CIE)L*a*b*值。結(jié)果:3組樣本滲透樹脂B點表面粗糙度分別為(0.15±0.021)μm、(0.31±0.03)μm和(0.40±0.02)μm,3組樣本脫礦病損C點表面粗糙度分別為(1.07±0.10)μm、(2.89±0.13)μm和(3.41±0.14)μm。各組樣本B點和C點表面粗糙度均隨著脫礦時間延長而增加,組間差異分別有統(tǒng)計學(xué)意義(P0.01)。3組樣本染色前B點與正常釉質(zhì)A點的色差逐漸增加,差異有統(tǒng)計學(xué)意義(P0.01),且組1 B點與正常釉質(zhì)之間色差小于3.7,而其余兩組色差大于3.7。染色后組1、組2 B點與正常釉質(zhì)色差小于3.7,而組3色差大于3.7,組1、組2之間的色差差異無統(tǒng)計學(xué)意義,但和組3色差的差異有統(tǒng)計學(xué)意義(P0.01)。結(jié)論:病損的脫礦程度不但能夠影響滲透樹脂對白堊斑即刻的遮蓋效果,并且能夠影響其表面粗糙度以及其顏色穩(wěn)定性;滲透樹脂病損表面粗糙度較正常釉質(zhì)高,有利于病損表面白堊斑的長期遮蓋效果。
[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.

【作者單位】： 北京大學(xué)口腔醫(yī)學(xué)院·口腔醫(yī)院綜合科;北京大學(xué)口腔醫(yī)學(xué)院·口腔醫(yī)院牙體牙髓科;
【分類號】：R783.5

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