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目的评价不同酸蚀方法应用于窝沟封闭术的临床效果。方法选取2011年9月至2012年3月在佛山市禅城区口腔医院就诊的6~8岁儿童90例作为研究对象(共240颗第一恒磨牙),随机分为3组,每组30例。分别采用自酸蚀黏结剂(A组)、窝沟釉质成形术结合自酸蚀黏结剂(B组)以及磷酸酸蚀剂(C组)处理牙面后行窝沟封闭术,术后随诊3、6和12个月,比较3种方法的临床效果。结果在术后3个月和6个月时,3组的窝沟封闭剂保留率和患龋率差异均无统计学意义(均P>0.05)。术后12个月时,A组的窝沟封闭剂保留率最低,患龋率最高,与其他两组的差异均有统计学意义(均P<0.05);但B组与C组间差异无统计学意义(P>0.05)。结论自酸蚀黏结剂法行窝沟封闭术的效果不及磷酸酸蚀法,结合使用窝沟釉质成形术可提高窝沟封闭的临床效果。磷酸酸蚀法与窝沟釉质成形术结合自酸蚀黏结剂法的效果相当。
Objective To evaluate the clinical effect of different acid etching methods on pit and fissure sealant. Methods From September 2011 to March 2012, 90 children from 6 to 8 years old in Foshan Chancheng Stomatological Hospital were selected as the study objects (a total of 240 first permanent molars) were randomly divided into three groups of 30 example. The fissure sealant was treated with self-etching adhesive (group A), pit and fissure enameloplasty combined with self-etching adhesive (group B) and phosphate acid etching agent (group C) 3, 6 and 12 months, the clinical efficacy of three methods were compared. Results At 3 months and 6 months after operation, there was no significant difference in retention rate and caries prevalence between pit and fissure sealant in the three groups (all P> 0.05). The pit and fissure sealant retention rate was the lowest in group A at 12 months after operation, with the highest prevalence of caries, which was significantly different from the other two groups (all P <0.05). However, there was no significant difference between group B and group C Statistical significance (P> 0.05). Conclusion The self - etching adhesive method is not as effective as phosphate acid etching in the treatment of pit - fissure occlusion. The combined use of pit and fissure enameloplasty can improve the clinical effect of pit and fissure sealant. Phosphoric acid etching and fissure enameloplasty combined with self-etching adhesive effect quite.