摘要
目的研究CAD/CAM个性化基台改善后牙区种植修复中食物嵌塞的临床效果。方法收集后牙区种植修复的患者65例,共计80颗植体,随机分为2组:实验组40颗为CAD/CAM个性化基台组,对照组40颗为成品基台组。修复完成3个月后,根据Jemt牙龈乳头指数(PIS)来评价两组龈乳头形态的差别,观察食物嵌塞的情况,并分析两者的相关性。结果两组均无PIS4级病例,龈乳头形态良好的PIS2级和PIS3级病例,实验组36例(90.00%)明显多于对照组29例(72.50%),而龈乳头形态不佳的PIS0级和PIS1级的病例,实验组4例(10.00%)则明显少于对照组11例(27.50%),差异有统计学意义(P<0.05);两组出现食物嵌塞的情况,实验组4例(10.00%),对照组13例(32.50%),差异有统计学意义(P<0.05);两组中龈乳头形态良好的病例出现食物嵌塞2例(3.07%),龈乳头形态不良的病例出现食物嵌塞15例(100%),差异有高度统计学意义(P<0.001)。结论 CAD/CAM个性化基台应用于后牙区种植修复中,可以形成更好的龈乳头形态,减少食物嵌塞的发生,有利于种植体周围组织的健康。
Objective To investigate the clinical effect of CAD/CAM custom abutment used in posterior region for improving food impaction. Methods 80 cases of 65 patients for implant restoration in posterior region were randomly divided into two groups randomly： Test group included 40 CAD/CAM custom abutments, and control group included 40 stock abutments. 3 months after the completion of restoration, the morphology of gingival papilla was evaluated according to the papilla index score （PIS） , the situation of food impaction was observed, and the correlation between them was analyzed. Results There were no cases of PIS 4 in both of the two groups, but there were more cases of PIS2 and PIS 3 in test group（36 cases,90.00%） than in control group（29 cases,72.50%）, while there were fewer cases of PIS 0 and PIS 1 in test group（4 cases, 10.00% ） than in control group（ 11 cases ,27.50% ）, the difference was statistically significant（P〈0.05）. 4 cases（10.00%） showed food impaction in test group, while 13 cases（32.50%） in control group, the difference was statistically significant（P〈0.05）. 2 cases（3.07%） showed food impaetion in good papilla morphology group, while 15 cases（100%） in poor papilla morphology group, the difference was highly statistically significant（P〈0.001）. Conclusions When used in posterior region, CAD/CAM custom abutment can help to form better gingival papilla, reduce food impaction, and keep the tissue around the implant healthy.
出处
《口腔医学》
CAS
2017年第1期49-52,共4页
Stomatology
基金
国家自然科学基金青年科学基金(81300880)
