摘要
1962年,Cohon根据Gargiulo等的研究提出了天然牙中存在生物学宽度,即龈沟底与牙槽嵴顶之间约2mm的恒定距离,结构上包括结合上皮(宽约0.97mm)以及结合上皮根方和牙槽嵴顶之间的纤维结缔组织(宽约1.07mm)。1991年,Berglundh等提出在种植体周围存在类似的结构,即被称为种植体生物学宽度,从种植体周围黏膜顶端到种植体-骨结合位点之间约3~4mm的较为恒定的距离,结构上包括上皮层(包括龈沟上皮和结合上皮)以及上皮根方与种植体-骨结合位点之间的纤维结缔组织层。其功能意义主要包括作为屏障抵御外界刺激、有利于种植区软硬组织的重建和临床上指导种植修复过程3个方面。本文就口腔种植体周围生物学宽度在结构、尺度及功能上的意义进行综述。
In 1962, according to Gargiulo et al, Cohon proposed the biological width around the natural tooth, that is, a 2 mm-width constant distance between gingival sulcus and alveolar crest, including junctional epithelium (width 0.97 mm) and fibrous connective tissue between junctional epithelium and alveolar crest (width 1.07 mm).In 1991, Berglundh et al proposed a biological width similar to the width of a natural tooth around an implant and is named as biological width in implant.The proposed biological width is a 3 to 4 mm in distance from the top of the peri-implant mucosa to the first boneto- implant contact, including epithelial tissues, namely, sulcular and junctional epithelia, and fibrous connective tissues between the epithelium and the first bone-to-implant contact in composition.This width is mainly proposed to resist external stimulation, thereby reestablishing soft and hard tissues around the implant and guiding clinical operations in oral implantation.This review explores the composition, dimension, and function of the biological width around implants.
作者
郑铮
陈文川
Zheng Zheng;Chen Wenchuan(State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept.of Prosthodontics 1,West China Hospital of Stomatology,Sichuan University,Chengdu 610041,China)
出处
《国际口腔医学杂志》
CAS
CSCD
2019年第4期481-487,共7页
International Journal of Stomatology
基金
四川大学专业学位研究生优秀案例课程建设项目(2016 KCJS080)~~
关键词
种植体
生物学宽度
结合上皮
implant
biological width
junctional epithelium
