全冠与嵌体修复对牙周组织的影响研究

发布时间：2018-10-05 17:52

【摘要】：目的:定量研究嵌体和全冠修复根管治疗后磨牙与前磨牙牙齿外形改变量,以及对牙周组织的影响。方法:选取需要根管治疗的牙周组织健康和慢性牙周炎的患牙各30例,完善根管治疗后,随机各取15例进行嵌体或全冠修复。口外扫描仪扫描同一患牙修复前后石膏模型,Geomagic Qualify 12.0将三维模型数据两两进行最佳拟合对齐和3D比较,计算配对数据间的平均偏差(averaged errors,AE)。ELASA法定量检测治疗前后龈沟中液弹性蛋白酶(elastase,EA)及前列腺素E2(prostaglandin E2,PGE2)变化。结果:1.用全冠修复的患牙外形形态于颊侧近合面1/2,近龈端1/2及舌侧近龈端1/2改变量大于嵌体修复患牙的改变量,并具有统计学差异(P0.05)。2.慢性牙周炎患牙经牙周基础治疗一年后龈沟液中前列腺素E2和弹性蛋白酶浓度明显降低,并具有统计学意义(P0.05);牙周健康患牙无明显改变。结论:全冠修复对牙齿原有外形在颊舌侧改变量大于嵌体修复,但并未对牙周组织产生明显影响。慢性牙周病患牙接受牙周基础治疗后,牙周状态明显改善。
[Abstract]:Objective: to study quantitatively the changes of tooth shape and the effect on periodontal tissue of molar and premolar after root canal restoration with inlay and full crown. Methods: 30 cases of healthy periodontal tissue and 30 cases of chronic periodontitis were selected. 15 cases were randomly selected for inlay or full crown repair after perfect root canal therapy. Geomagic Qualify 12.0 scanned the same tooth before and after the restoration of the same tooth. The 3D model data were matched and compared. The mean deviation (averaged errors,AE). ELASA method was used to measure the changes of elastase (elastase,EA) and prostaglandin E 2 (prostaglandin E 2 PGE 2) in gingival sulcus before and after treatment. The result is 1: 1. The shape of the affected teeth repaired with full crown was 1 / 2 in the proximal side of the cheek. The changes of the proximal gingival end 1 / 2 and the lingual side of the gingival end were larger than that of the inlay restoration tooth, and the difference was statistically significant (P0.05). The concentration of prostaglandin E _ 2 and elastase in gingival crevicular fluid of chronic periodontitis was significantly decreased after one year of periodontal basic treatment (P0.05). Conclusion: the change of tooth shape in buccal and lingual side is larger than that in inlay repair, but it has no obvious effect on periodontal tissue. The periodontal state of chronic periodontal disease patients improved significantly after periodontal basic treatment.
【作者单位】：大连医科大学附属第一医院口腔科;
【基金】：辽宁省自然科学基金项目资助(编号:2014023035)
【分类号】：R783.3

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