Oliver B M
Am J Orthod. 1982 Aug;82(2):141-9. doi: 10.1016/0002-9416(82)90492-4.
Placement of teeth according to accepted cephalometric criteria does not necessarily ensure that overlying soft tissue will drape in a harmonious manner. The purpose of this research was to investigate the influence of maxillary lip thickness and lip strain on the relationship between dental and integumental tissue changes in orthodontically treated patients. Data were derived from pretreatment and retention lateral cephalometric head films of forty Caucasian subjects with Class II, Division 1 malocclusions. All patients were treated with edgewise appliances. Percentile groups were created for males and females according to the magnitude of maxillary lip thickness and lip strain. It was found that there was significant correlation between osseous changes and soft-tissue changes in both males (r= 0.83, p less than 0.01) and females (r = 0.85, p less than 0.01). Strong correlations were found between osseous changes and soft-tissue changes in subjects with thin lips (males, r equal to 0.92, p less than 0.01; females, r = 0.98, p less than 0.01), whereas no significant correlations were found in subjects with thick lips. Significant correlations were found between incisor changes and vermillion border changes in males (r = 0.61, p less than 0.01) and females (r = 0.51, p less than 0.05). Correlations were strong between incisor changes and vermilion border changes in subjects with high lip strain (males, r equal 0.92, p less than 0.01; females, r = 0.82, p less than 0.05) but were significant in subjects with low lip strain.
根据公认的头影测量标准来排牙并不一定能确保覆盖其上的软组织会呈现出和谐的形态。本研究的目的是调查上颌唇厚度和唇应变对正畸治疗患者牙齿与皮肤组织变化之间关系的影响。数据来源于40例安氏II类1分类错牙合的高加索受试者治疗前和保持期的头颅侧位头影测量片。所有患者均采用方丝弓矫治器治疗。根据上颌唇厚度和唇应变的大小为男性和女性创建百分位数分组。结果发现，男性（r = 0.83，p < 0.01）和女性（r = 0.85，p < 0.01）的骨组织变化与软组织变化之间均存在显著相关性。在薄唇受试者中，骨组织变化与软组织变化之间存在强相关性（男性，r = 0.92，p < 0.01；女性，r = 0.98，p < 0.01），而在厚唇受试者中未发现显著相关性。男性（r = 0.61，p < 0.01）和女性（r = 0.51，p < 0.05）的切牙变化与唇红缘变化之间存在显著相关性。在高唇应变受试者中，切牙变化与唇红缘变化之间的相关性较强（男性，r = 0.92，p < 0.01；女性，r = 0.82，p < 0.05），但在低唇应变受试者中相关性不显著。
