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Year : 2013  |  Volume : 3  |  Issue : 2  |  Page : 139-143

Stability of Cleft maxilla in Le Fort I Maxillary advancement

1 Department of Oral and Maxillofacial Surgery, Army -Dental -Centre (Research and Referral), Delhi University, Delhi, India
2 Department of Orthodontics, Army -Dental -Centre (Research and Referral), Delhi University, Delhi, India

Correspondence Address:
Pushpa Kumari
Army Dental Centre (Research and Referral), Near Dhaula Kuan, Delhi Cantt - 110 010, Delhi
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DOI: 10.4103/2231-0746.119223

PMID: 24205472

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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.

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