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Cone-beam computed tomography assessment of mandibular asymmetry in unilateral cleft lip and palate patients

편측성 구순 구개열 환자의 하악 비대칭에 대한 cone-beam computed tomography를 이용한 평가

  • Veli, Ilknur (Department of Orthodontics, Faculty of Dentistry, Dicle University) ;
  • Uysal, Tancan (Department of Orthodontics, Faculty of Dentistry, Izmir Katip Celebi University) ;
  • Ucar, Faruk Izzet (Department of Orthodontics, Faculty of Dentistry, Erciyes University) ;
  • Eruz, Murat (Department of Orthodontics, Faculty of Dentistry, Erciyes University) ;
  • Ozer, Torun (Department of Orthodontics, Faculty of Dentistry, Dicle University)
  • Received : 2011.04.22
  • Accepted : 2011.08.01
  • Published : 2011.12.30

Abstract

Objective: To determine whether there is any difference between the cleft and non-cleft sides of the mandible in unilateral cleft lip and palate (UCLP) patients, or the right and left sides in control patients; and to determine if there is any difference between the mandibular asymmetry of UCLP patients and that of control patients. Methods: We examined cone-beam computed tomography (CBCT) scans of 15 patients with UCLP and 15 age- and gender-matched control patients. We evaluated 8 linear, 3 surface, and 3 volumetric measurements and compared the cleft/non-cleft sides of UCLP patients and the right/left sides of controls. Results: There were no statistically significant gender differences in any linear, surface, or volumetric measurement. The single significant side-to-side difference in UCLP patients was a longer coronoid unit on the cleft side than on the non-cleft side ($p$ = 0.046). Body volume was significantly lower in the UCLP group than in the control group ($p$ = 0.008). Conclusions: In general, UCLP patients have symmetrical mandibles, although the coronoid unit length is significantly longer on the cleft side than on the non-cleft side. UCLP patients and controls differed only in body volume.

Keywords

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