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ABSTRACT%Purpose: The patients with cleft lip and palate have a higher risk of cervical vertebrae anomalies than do patients in general population. The aim of present study was to determine the prevalence of various upper cervical spine anomalies in different type of clefts.Procedures: Lateral cephalograms of 128 patients (66 males, 62 females) with cleft lip and palate, and 125 (60 males, 65 females) non syndromic patients without cleft lip and palate were selected at random from archive. Cephalograms of the patients were traced and the diagnosis of any cervical vertebrae anomaly was noted. Anomalies were categorized as either: posterior arch deficiency or fusions.Main findings: Prevalence of cervical vertebrae anomalies in the c lef t group was 20. 3% while it was 6.4% in the control group. Further cervical vertebrae anomalies were 16.6% in the CPO group, 19.1% in the BCLP group, and 22.2% in the UCLP group.Conclusion: A higher prevalence of cervical vertebrae anomalies was observed in cleft lip and palate patients. The prevalenc e obser ved is 3 times more in clef t group than c ontrol group.How to cite this article: Datana S, Bhalla A, Kumar P, Roy SK, Londhe S. Comparative Evaluation of Prevalence of Upper Cervical Vertebrae Anomalies in Cleft Lip/Palate Patients: A Retrospective Study. Int J Clin Pediatr Dent 2014;7(3):168-171.

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Context:Le Fort 1 maxillary osteotomy in operated patients of cleft lip and cleft palate (CLCP).Aims:To study stability of Le Fort 1 maxillary osteotomy in operated patients of CLCP by two-dimensional evaluation using cephalometric analysis.Settings and Design:Prospective study conducted at Army Dental Centre (Research and Referral) from May 2009-May 2012.Materials and Methods:Subjects included nine consecutively operated patients of CLCP with maxillary hypoplasia. Maxillary advancement by Le Fort 1 maxillary step osteotomy was performed. There were four males and five females with an age range of 16-18 years and follow-up range was 12-36 months. Presurgical and postsurgical changes were compared using cephalometrics for orthognathic surgery (COGS) system to determine stability of maxillary movement and quantify amount of relapse at 15 days and 12 months.Statistical Analysis:Student's t-test.Results:Mean linear horizontal advancement achieved along nasion (N) to anterior nasal spine (ANS) with reference to true vertical plane at 15 days and 12 months was 5.17 and 3.91 mm, respectively. The mean relapse in anteroposterior dimension was 21.63%. The mean vertical displacement observed along nasion and ANS with reference to true horizontal plane at 15 days and 12 months was 5.21 mm and 3.2, respectively with a resultant relapse of 41.54%.Conclusions:Based on clinical and COGS analysis, it is evident that Le Fort 1 advancement in operated cases of CLCP has inherent potential for relapse.