牙冠延长术在前牙修复中的临床应用及对微笑美学的影响分析  

Analysis of Clinical Effect of Crown Lengthening in Anterior Tooth Restoration and Its Infl uence on Smile Aesthetics

作　　者：杜晓康 沈利 DU Xiaokang;SHEN Li(Department of Stomatology,General Hospital of Anhui Wanbei Coal Power Group,Suzhou 234000,Anhui,China)

机构地区：[1]安徽皖北煤电集团总医院口腔科,安徽宿州234000

出　　处：《中国美容医学》2023年第7期131-134,共4页Chinese Journal of Aesthetic Medicine

摘　　要：目的:分析牙冠延长术在前牙修复中的临床效果及对微笑美学的影响。方法:选取2018年6月-2020年12月在笔者医院口腔科诊治的上颌前牙牙体缺损行口腔美学修复的70例患者为研究对象,按照随机数字表法分为观察组和对照组,每组35例。两组术前均进行龈上洁治、龈下刮治及根管治疗,并通过X线片检查牙根及牙槽骨等患牙基本情况。对照组行牙龈切除术,观察组行牙冠延长术。检测两组患者术前和术后6个月菌斑指数(Plaque index,PLI)、松动度(Tooth mobility,MOB)、出血指数(Sulcus bleeding index,SBI)、探诊深度(Probing depth,PD),测量两组患者术后6个月患牙修复体边缘至嵴顶的距离(Prosthesis margin-crest distance,RM-BC)及修复体边缘至龈缘的距离(Prosthesis margin-Distance of gingival margin,RM-GM),检测两组患者术前和术后6个月龈沟液肿瘤坏死因子-α(Tumornecrosis factor-α,TNF-α)、白细胞介素-1β(Interleukin-1β,IL-1β)和细胞间黏附分子-l(Intercellular adhesion moleclar-1,ICAM-1)水平,记录患者术后Liébart微笑线分类情况。结果:两组术后PLI、SBI、MOB及PD显著低于术前(P<0.05),观察组术后PLI、SBI、MOB及PD显著低于对照组(P<0.05);观察组RM-BC、RM-GM显著高于对照组(P<0.05);两组术后龈沟液TNF-α、IL-1β及ICAM-1水平显著低于术前(P<0.05),观察组术后龈沟液TNF-α、IL-1β及ICAM-l水平显著低于对照组(P<0.05);观察组微笑线分类水平符合现代审美标准比例,且显著高于对照组(P<0.05)。结论:牙冠延长术在前牙修复中可有效降低牙龈炎症,改善牙龈形态,同时提高美学疗效,值得临床推广应用。Objective To analyze the clinical effect of crown lengthening in anterior tooth restoration and its eff ect on smile aesthetics.Methods A total of 70 patients with maxillary anterior tooth defect who were treated in the Department of Stomatology of author's hospital from June 2018 to December 2020 and needed oral aesthetic repair were selected as the research objects.They were divided into observation group and control group according to random number table method,with 35 cases in each group.Both groups underwent supragingival scaling,subgingival curettage,and root canal treatment before operation,and the basic conditions of aff ected teeth,such as root and alveolar bone,were examined by X-ray fi lms.The control group received gingiectomy and the observation group received crown lengthening.Plaque index(plaque index,PLI),mobility(tooth mobility,MOB),bleeding index(sulcus bleeding index,SBI)and probing depth(probing depth,PD)were measured before and 6 months after operation,The distance from the edge of the restoration to the crest(Prosthesis margin-Crest distance,RM-BC)and the distance from the edge of the restoration to the gingival margin(Prosthesis margin-Distance of gingival margin,RM-GM)were measured 6 months after surgery,The tumor necrosis factor in gingival crevicular fluid was measured before and 6 months after operation-α(tumornecrosis factor-α,TNF-α),Interleukin-1β(interleukin-1β,IL-1β)And intercellular adhesion molecule-l(Intercellular Adhesion Moleclar-1,ICAM-l)levels,The classifi cation of Liebart smile line was recorded.Results Postoperative PLI,SBI,MOB and PD in the two groups were signifi cantly lower than those before surgery(P<0.05),and postoperative PLI,SBI,MOB and PD in the observation group were significantly lower than those in the control group(P<0.05).Rm-bc and RM-GM in observation group were significantly higher than those in control group(P<0.05).The levels of TNF-α,IL-1βand ICAM-1 in gingival crevicular fluid in 2 groups after operation were significantly lower than those befor

关 键 词：牙冠延长术 前牙修复 临床效果 龈沟液 微笑美学 

分 类 号：R783.4[医药卫生—口腔医学]