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Changes in lip and periornl soft tissue after bracket removal  

Lee, Jeong-Sub (Department of Dentistry, Wonju Christian Hospital, Yonsei University)
Choy, Kwang-Chul (Department of Orthodontics, College of Dentistry, Yonsei University)
Park, Young-Chel (Oral Science Research Center, Craniofacial Deformity Research Center, Department of Orthodontics, College of Dentistry, Yonsei University)
Kim, Kyung-Ho (Oral Science Research Center, Craniofacial Deformity Research Center, Department of Orthodontics, College of Dentistry, Yonsei University)
Publication Information
The korean journal of orthodontics / v.37, no.2, 2007 , pp. 125-136 More about this Journal
Abstract
Objective: Soft tissue changes due to orthodontic treatment has large individual variation. Therefore continuous evaluation during treatment is required. Patients with fixed orthodontic appliances often wonder if their lip positions will change after the removal of brackets, but only a few studies exist on this topic. The objective of this study was to evaluate the changes of the lips and perioral soft tissue after bracket removal. Methods: The sample used in this study was 19 males and 33 females. Cephalometric X-rays were taken at 3 stages - T1 (before debonding), T2 (just after debonding), T3 (1.5 months after debonding). Results: The lower lip was retruded immediately after debonding (T2-T1), and 1.5 months after debonding (T3-T2). The mean amounts of retrusion from the vertical reference plane (sG perpendicular line) were about 0.38 mm for the upper lip and 0.88 mm for the lower lip. Immediately after debonding, lip retrusion of females was greater than that of males. During the post-debonding period, lower lip of males was retruded more than that of females. Conclusion: Lips are retruded after bracket removal, and there is no gender difference 1.5 months after debonding.
Keywords
Bracket removal; Lip; Soft tissue;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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