北京大学学报（医学版）2013，Vol.45Issue(1)：54-58,5.DOI:10.3969/j.issn.1671-167X.2013.01.012
120例中国青年健康上前牙牙龈曲线形状特征分析
Shape analysis of healthy gingival curve in maxillary anterior teeth in 120 Chinese youth
摘要
Abstract
To establish the relationship of the gingival crest, the gingival curve characteristic point (inflection point, IP) and the contact points and to use it as reference to design the location of contact area in anterior teeth restoration to form the natural papillae. Methods; Two-dimensional gingival curve morphology analysis based on standardized digital images was done to measure the value of different points in the upper anterior teeth for 120 young Chinese. Results; In the maxillary anterior teeth, the average mesial papilla heights ( MPH ) of central incisors ( CI) , lateral incisors ( LI) , canines ( CA ) were (4.49 ± 0.86) mm, (3.64 ± 0.77) mm and (4. 12 ± 0.92) mm; the average distal gingival papilla heights(DPH) were (4.09 ± 0.72) mm, (3.48 ± 0.83) mm and (4.13 ± 0.94) mm . The relationship of the gingival curve inflection points of maxillary anterior teeth with the gingival zenith and the contact points were determined in horizontal and vertical ways. In the CI, the mesial IP in X and Y axis were 0. 61 ±0.10 and 0. 26 ±0.07, in distal were 0. 57 ±0. 10 and 0. 25 ±0. 07. In the LI, the mesial IP in X and Y axis were 0.50 ±0.10 and 0.23 ±0.08, in distal were 0. 56 ±0.11 and 0.26 ±0.08. In the CA, the mesial IP in X and Y axis were 0. 52 ± 0. 09 and 0. 23 ± 0. 07, the distal IP were 0. 60 ± 0. 12 and 0.26 ±0.08. Conclusion; The upper anterior teeth papillae shapes of the different teeth and gingival curvesare determined with certain characteristics, and the gingival curve inflection points have some mathematical relationship with the gingival crest and the contact points.关键词
双尖牙/切牙/牙龈曲线/美学,牙科Key words
Anterior teeth/ Incisor/ Gingival curve/ Esthetics, dental分类
医药卫生引用本文复制引用
张豪,乐迪,胡文杰,曹占强,张艳玲..120例中国青年健康上前牙牙龈曲线形状特征分析[J].北京大学学报（医学版）,2013,45(1):54-58,5.基金项目
卫生部部属(管)医院临床学科重点项目(2010)资助 （管）
