游离端义齿修复中太极扣附着体对基牙牙周的影响

目的研究单侧后牙游离缺失修复中太极扣附着体对基牙牙周健康的影响。方法选择肯氏Ⅱ类缺损患者20例,采用太极扣附着体修复。纵向观察修复前、修复后2周、修复后6个月第一、二、三基牙的牙周指数及牙槽骨吸收情况,并进行统计学分析。结果太极扣附着体修复后牙游离缺失后2周和修复后6个月内,义齿稳定,固位良好。第一、二、三基牙牙龈指数、菌斑指数、探诊深度在治疗前、修复后2周之间的差异,以及治疗前、修复后6个月之间的差异均无统计学意义;基牙X线根尖片未见根尖病变,未见明显牙周膜增宽、牙槽骨吸收或高度降低;修复前基牙的松动度在进行联冠修复后有所降低。结论太极扣附着体应用于游离端义齿修复对基牙牙周健康未见不利影响。

Effect of Easy Resilient Attachment(ERA)on Gingival Health of the Restored Teeth

Objective To investigate the effects of ERA Resilient Precision attachment on periodontal health of the abutment teeth in restoring free end removable partial dentures （RPDs）. Methods The periodontal status of the abutments in restoring free end RPDs was longitudinally observed with periodontal indices commonly used in clinics, and a group comparison was made using a one way analysis of variance （ANOVA）. Results The stability and retention of free end RPDs retained by ERA Resilient Prccisionattachments were excellent during the whole observation course. Compared with the periodontal status of the first and thesecond abutments before restoration respectively, no significant differences in gingival indices, plaque indices, periodontal probing depth, alveolar bone resorption levels of those were shown 6 months after restoration. The mobility of the abutments was significantly reduced when they were splinted together. Conclusion ERA Resilient Precision attachments used in free-end RPDs have no evident adverse effect on periodontal health of the abutment teeth, and the way of splinting the abutments is advantageous to their long-term health and stability.