【作者】 吕威；

【导师】 张喆；

【作者基本信息】 大连医科大学 ， 口腔临床医学， 2011， 硕士

【摘要】 目的:通过临床病例探讨牙齿牙冠延长术术后修复的疗效及恢复情况。方法:对10例患者行牙冠延长术,依手术前牙齿断缘位于牙槽嵴顶的位置,比较术前、术后4一6周效果,通过术后1、4、6周的预后效果的临床观察,比较10例患者术前、术后的(1)术后牙龈的色、形、质的改变,断端暴露是否良好;(2)术后的菌斑指数(PLI)、出血指数(BI)和松动度(MD);(3)术前后断端位置:牙槽嵴顶与断端的距离和牙槽嵴顶与牙龈的距离,(4)术后的前牙龈缘的位置与相邻牙龈缘的位置关系(唇舌侧),术后上前牙牙龈乳头的术后恢复。结果:患牙主观感觉良好,无叩痛,牙龈无炎症,牙龈缘高度与邻牙协调, X线片示牙周、尖周、牙槽嵴无异常。牙齿断端劈裂至龈下1-2㎜的比到龈下3-4㎜的效果要显著的多。结论:牙冠延长术的实施有利于断缘位于牙龈下方而生物学宽度不够的牙齿保存和修复,为以后牙齿修复后牙周情况的健康打下良好的基础。更多还原

【Abstract】 Objective:to investigate the efficacy and recovery of clinical cases of teeth through crown lengthening surgeryMethods: supply crown lengthening surgery to 10 sick teeth, according to pre-operative off the teeth and lingual margin to the alveolar ridge defect depth under the crown were divided into two groups, two groups were compared before and after a 6 weeks 4 results, The postoperative 1, 4, 6-week prognosis of clinical observation, two groups were compared before and after operation: (1) the change of color, shape, quality and good stump exposures in gum after;(2) the plaque index, bleeding index and mobility degree after operation ;(3) position before and after surgery ends: the top and the ends of the alveolar ridge alveolar crest distance and the distance with gum;(4) cingival margin after the first position and the position relationship between the adjacent gingival margin (tongue side), upper anterior gingival papillae after postoperative recoveryResults: Subjective feeling good ofsick teeth, no percussion pain, no gum inflammation, gingival margin height of coordination with adjacent teeth, X-ray film showed periodontal, periapical, alveolar ridge without exception. Meanwhile, off in the gingival margin of the teeth under the effect of 2.5mm or less than the broken edge in the subgingival tooth between 2.5mm to 4mm achieve much more.Conclusions: It benifits the preservation and restoration of alveolar crest off the bottom edge of the teeth by Crown lengthening surgery.To lay a good foundation for the health of periodontal through dental restorations更多还原