Journal of cranio-maxillo-facial surgery : official publication of the European Association for Cranio-Maxillo-Facial Surgery · 2017
Condylar geometry variation is associated with ENPP1 variant in a population of patients with dento-facial deformities.
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Constant Marion, Nicot Romain, Vieira Alexandre R, Raoul Gwenael, Sciote James J, Ferri Joel
Аннотация
PURPOSE: Bone remodeling is essential in maintaining bone health. Considering that ENPP1 contributes to bone geometry and bone mineralization, the aim of our study was to analyze the association between single-nucleotide polymorphisms (SNPs) of ENPP1 and condylar remodeling.
MATERIALS AND METHODS: A total of 156 patients undergoing orthodontic and maxillofacial surgery treatment for correction of malocclusion were included in this prospective study. Saliva samples from all subjects were used for DNA extraction and genotyping. Four ENPP1 SNPs were selected and tested to determine whether specific allelic variants are correlated with condylar remodeling. The criteria of condylar remodeling chosen were the ratio between each side of condylar height or surface differences on a dental panoramic of each patient. A diagnostic threshold was set at 15% difference between both sides.
RESULTS: The ENPP1 SNP rs9373000 showed a statistically significant association with condylar height ratio >15% (p = 0.012). The GG genotype was found to be a protective factor against condylar height decrease (p = 0.003).
CONCLUSION: This study identifies the genetic variant rs9373000 as a potentially causal variant for mandibular condyle geometry variation for patients presenting with dento-facial deformities.
MATERIALS AND METHODS: A total of 156 patients undergoing orthodontic and maxillofacial surgery treatment for correction of malocclusion were included in this prospective study. Saliva samples from all subjects were used for DNA extraction and genotyping. Four ENPP1 SNPs were selected and tested to determine whether specific allelic variants are correlated with condylar remodeling. The criteria of condylar remodeling chosen were the ratio between each side of condylar height or surface differences on a dental panoramic of each patient. A diagnostic threshold was set at 15% difference between both sides.
RESULTS: The ENPP1 SNP rs9373000 showed a statistically significant association with condylar height ratio >15% (p = 0.012). The GG genotype was found to be a protective factor against condylar height decrease (p = 0.003).
CONCLUSION: This study identifies the genetic variant rs9373000 as a potentially causal variant for mandibular condyle geometry variation for patients presenting with dento-facial deformities.