Tek taraflı dudak damak yarıklı hastaların kortikal kemik kalınlıklarının retrospektif olarak değerlendirilmesi

The purposes of this study were to evaluate the buccal and palatal cortical bone thickness in patients with complete unilateral cleft lip and palate (UCLP) and compare the cortical bone thicknesses at these specific locations between cleft and non-cleft sides and between subjects with and without UCLP. Fifty patients with UCLP (mean age of 14.76 ± 5.06 years) were selected for study group. The control group also contained 50 subjects (mean age of 16.54 ± 4.55 years) without any congenital deformity. Cortical bone thicknesses were evaluated using cone beam computed tomography images on 3dMD Vultus software program. Posterior buccal cortical bone thickness (BCBT) measurements were made on the cleft and non-cleft sides of UCLP patients, and on one side of the control group at maxillary interradicular areas between canine and 1st molar, at 4, 6 and 8 mm from the alveolar crest whereas palatal cortical bone thicknesses (PCBT) were also measured at 10 and 12 mm. Statistical analysis were made using NCSS software program. According to statistical evaluation, in patients with UCLP, the mean BCBT and PCBT at posterior maxilla ranged between 1.2 and 1.5 mm. There was no difference between BCBT and PCBT in UCLP group and furthermore they did not show any differences between cleft and non-cleft sides as well (p>0.05). On the other hand, BCBT and PCBT in UCLP group were significantly lower than that of the control group (p<0.001). BCBT and PCBT are generally prone to increase from anterior to posterior and from the alveolar crest to apex. In patients with UCLP, although most of the interradicular sites was found to be suitable for mini-implant insertion in terms of cortical bone thickness, less than 1 mm thicknesses may also be seen between canine and premolars, and closer to alveolar crest.