E-ISSN: 2148-9505
Evaluatıon Of Lower Lıp Profıle In Cleft Lıp And Palate Patıents
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Original Article
VOLUME: 16 ISSUE: 3
P: 175-182
December 2003

Evaluatıon Of Lower Lıp Profıle In Cleft Lıp And Palate Patıents

Turk J Orthod 2003;16(3):175-182
DOI: 10.13076/1300-3550-16-3-175
M. Okan Akçam 1
T. Ufuk Toygar 1
Ayça Arman 2
1. Ankara Üniversitesi, Diş Hekimliği Fakültesi, Ortodonti Anabilim Dalı
2. Başkent Üniversitesi, Diş Hekimliği Fakültesi, Ortodonti Anabilim Dalı
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ABSTRACT

The aim of this study was to evaluate the lower lip morphology and posture of pre-peak cleft lip and palate (CLP) patients comparatively with skeletodental Class I normals and post-peak unilateral CLP subjects. The study material consisted of lateral cephalometric and hand-wrist radiographs obtained from a total of 38 CLP patients, 24 pre-peak unilateral (Mean age: 12.86± 0.85 years), 14 post-peak unilateral (Mean age: 16.53±0.77 years) and 20 control individuals (Mean age:12.33±0.85 years) with Class I occlusion and a harmonious profile. Cephalometric landmarks were double-digitized and the measurements were calculated by a computer program. Besides conventional dentofacial variables, the lower lip area was also measured by using a digital planimeter on the cephalometric tracings. Bonferroni test was performed to evaluate the differences between the pre-peak CLP and the control group while t-test was used to evaluate the defferences between pre and post peak unilateral CLP groups. The lower lip area was 3.46±0.27cm2 in the pre-peak CLP group and no statistically significant difference was found in comparison with the control (4.42±0.24 cm2). The lower lip area was found as 4.38+0.19cm2 in the post-peak unilateral group and was significantly different from the pre-peak group (p<0.001). The results of this study imply that the lower lip thickness of CLP patients increases after puberty. The reason of this increase may be a compensatory mechanism to reduce the increased inter-labial gap due to the short upper lip seen in CLP subjects.