上颌中切牙牙龈生物型的相关因素分析  

The correlation analysis of the gingival biotype in maxillary

作　　者：赵宇骁 周延 浦丽飞 陈洁[1] 丁旭[1] 宋晓萌[1] 滕荣林 吴煜农[1] ZHAO Yuxiao ZHOU Yan PU Lifei CHEN Jie DING Xu SONG Xiaomeng TENG Ronglin WU Yunong.(Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical Universit Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanfing Medical University, Nanjing 210029, China)

机构地区：[1]南京医科大学口腔疾病研究江苏省重点实验室南京医科大学附属口腔医院口腔颌面外科,江苏南京210029 [2]南京江北口腔医院牙体牙髓科,江苏南京210000

出　　处：《口腔医学》2017年第7期615-620,共6页Stomatology

基　　金：国家自然科学青年基金(81402236);江苏高校优势学科建设工程资助项目(2014-37)

摘　　要：目的评估不同参考线处上颌中切牙唇、腭侧骨板厚度情况及釉牙骨质界到唇侧牙槽嵴顶距离;探究上颌中切牙牙龈生物型与性别、年龄、牙冠唇面形态、牙槽骨厚度以及与釉牙骨质界到唇侧牙槽嵴顶距离的相关性。方法对118位受试者进行CBCT扫描,测量上颌中切牙唇、腭侧骨板厚度情况、釉牙骨质界到牙槽嵴顶距离;使用牙周探针法测量上述受试者的牙龈生物型,记录并分析其相关性结果牙龈生物型与性别、年龄、中切牙唇面形态无明显相关性;上颌中切牙的釉牙骨质界至唇侧牙槽嵴顶距离为(2.63±0.98)mm,牙龈生物型与该距离无相关性(r=-0.051,P>0.05),27.1%的唇侧骨板部分缺失;牙龈生物型与距釉牙骨质界根方3 mm、5 mm处唇侧骨板厚度的相关系数(r)分别为0.747、0.281(P<0.05)结论 (1)上颌中切牙接近1/3的唇侧骨板伴有部分缺失,釉牙骨质界至唇侧牙槽嵴顶距离与牙龈生物型无相关性;(2)当患者上颌中切牙唇侧骨板完整时,牙龈生物型与唇侧骨板厚度呈正相关。Objective To determine the buccal and palatal bone thickness at different reference lines and the distance from cementoenamel junction（CEJ） to labial bone crest of the maxillary central incisor. To study the relationship between gingival biotype and gender, age, crown form, the underlying bone thickness and the distance from CEJ to labial bone crest of the maxillary central incisor. Methods 118 volunteers with health gingiva were included. The buccal and palatal bone thicknesses which were measured at 3 locations and the distance from CEJ to labial bone crest were determined by CBCT. Gingival biotype of those volunteers was confirmed with the aid of a periodontal probe. The correction was recorded and analyzed. Results There was no significant correlation between the gingival biotype and gender, age, crown form of the maxillary central incisor. The distance from CEJ to labial bone crest was 2.63±0.98 mm, the correlation coefficient （r） value between the gingival biotype and this distance was -0.051 （P〉0.05）, which showed no correlation. The percentage of partially missed labial bone was 27.1%. The correlation coefficient （r） values between the gingival biotype and labial bone thickness which was at 3,5 mm below the CEJ were 0.747 and 0.281（P〈0.05）respectively. Conclusion ①About the maxillary central incisor, around one third of labial bone is partially missed. No relation is detected between the gingival biotype and the distance as mentioned above. ②There is a positive correlation between the gingival biotype and labial bone thickness when the labial bone is intact.

关 键 词：牙龈生物型 牙槽骨厚度 CBCT 美学区 

分 类 号：R780.2[医药卫生—口腔医学]