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Comparative effect observation on different cervical margin positions restoration to periodontal health of 69 cases of porcelain-fused-to-metal crown
Author(s): HE Zhenfeng, LI Li, LIN Zuo, QIU Weiping
Pages: 349-
350
Year: 2010
Issue:
6
Journal: Journal of Clinical Stomatology
Abstract: 目的:探讨金属烤瓷冠颈缘的不同位置对基牙牙周组织的影响.方法:收集金属烤瓷单冠修复的后牙(包括磨牙和前磨牙)患者50例,69个牙齿,按全冠颈缘位置分为龈上组34例和龈下组35例,修复后1年检查各基牙的牙龈指数,并对发生牙龈炎症的基牙的可能因素进行统计分析.结果:龈下组基牙的牙龈指数高于龈上组(P<0.05),龈下组中发生龈炎有20个牙(发病率57%),是龈上组的10倍(2个牙).结论:后牙烤瓷全冠...
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