微创冠延长术保存冠根折裂磨牙和前磨牙1年后的牙周状态观察  

Observation of periodontal status of molars and premolars with oblique crown-root fracture one year after minimally invasive crown lengthening

作　　者：熊萍[1] 刘彦[1] 王荃[1] XIONG Ping;LIU Yan;WANG Quan(650031,Department of Prosthodontics of Affiliated Stomatology Hospital of Kunming Medical University,China)

机构地区：[1]昆明医科大学附属口腔医院口腔修复科,650031

出　　处：《实用口腔医学杂志》2018年第4期540-543,共4页Journal of Practical Stomatology

基　　金：云南省科技厅2016科技惠民专项(编号:2016RA013)

摘　　要：目的:观察微创冠延长术及冠修复保存折裂磨牙1年后的牙周状态。方法:纳入冠根向折裂2个磨牙和5个前磨牙,折裂线位于龈下3 mm。微创冠延长术后6周牙体预备,烤瓷全冠修复。术后1年检测患牙牙周菌斑指数(PLI)、探诊出血(BI)、探诊深度(PD)、松动度检查,与近远中邻牙、对侧同名牙比较;根尖X线片观察根尖周状况,CBCT测量术牙冠边缘至牙槽嵴顶的垂直距离,手术侧与非手术侧作比较。结果:术后1年,7颗术牙PLI、PD、BI、松动度与对照牙相比无显著性差异(P>0.05);冠边缘距牙槽嵴顶距离患牙术区与非术区差异无统计学意义(P>0.05)。结论:微创冠延长术是一种可行的保留残冠的牙周手术。Objective： To observe the periodontal status of molars and premolars with oblique crown-root fractures 1 year after minimally invasive crown lengthening（ MICL）. Methods： 2 molars and 5 premolars with oblique crown-root fracture in 7 patients were treated by MICL surgery. Clinical periodontal examination and CBCT examination of alveolar bone height were performed 1 year after treatment. Data were compared between treated and healthy teeth. Results： 1 year after treatment,PLI,BI,PD and tooth mobility were not significantly different between the treated teeth and the control teeth（ P 〉 0. 05）. The distance from the alveolar bone crest to the crown margin at the operated side and no-operated side of the treated teeth was not significantly deferent（ P 〉 0. 05）. Conclusion： The MICL surgery is effective in preservation of the residual crown of the teeth with oblique crown-root fracture.

关 键 词：折裂牙 微创冠延长术(MICL) 牙周愈合 

分 类 号：R783.3[医药卫生—口腔医学] R781.4[医药卫生—临床医学]