Abstract:

Abstract：The purpose of the present study was to show the different choices of periodontal surgeries in resolving various clinical problems. There were both demands of restoration in bilateral posterior areas of the patient，but their remaining of local dental tissue was different. In order to immediately restore the function and esthetic of the patient's dentition，the crown-lengthening surgery was applied on the side of more dental tissue available；the tooth was extracted on the other side of less dental tissue available and cureless apical lesion；also，implant surgery was applied electively. Soft and hard tissue augmentation was finished in implantation synchronously. The effect of final restorations was good and the patient was satisfied. The periodontal surgery played the key role in multidisciplinary treatment，therefore，its indications should be carefully and comprehensively chosen in overall treatment design.

Key words: periodontal surgery, esthetics, implantation, crown-lengthening surgery

摘要：

本研究的目的是展示不同牙周手术技术在解决不同临床问题时的选择。患者的双侧后牙区同时存在修复的需求，但局部牙体组织剩余的量不同。为了迅速恢复患者牙列的功能与美观，在牙体组织剩余量较多的一侧采用了冠延长术的方法，而另一侧则因牙体组织缺损量多以及无法治愈的根尖病变而拔除患牙，并择期进行了种植。在种植手术中，还同时完成了软硬组织的增量。最终修复效果良好，患者满意。牙周手术技术在多学科治疗中扮演了重要的角色，因此在整体治疗设计中应严格谨慎全面地掌握其适应证。

关键词: 牙周手术, 美学, 种植, 牙冠延长术