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Year : 2019  |  Volume : 11  |  Issue : 6  |  Page : 457-462

Assessment of correlation of growth hormone receptor gene with tooth dimensions: A CBCT and genotyping study

1 Department of Pedodontics and Preventive Dentistry, SMBT Dental College and Hospital, Sangamner, Maharashtra, India
2 Department of Periodontology, Vaidik Dental College and Research Centre, Daman, Daman and Diu, India
3 Department of Oral Medicine and Radiology, Vyws Dental College and Hospital, Amravati, Maharashtra, India
4 Department of Oral Medicine and Radiology, R.R. Kambe dental college, Akola, Maharashtra, India
5 Department of Periodontics, R.R. Kambe dental college, Akola, Maharashtra, India
6 Department of Orthodontics and Dentofacial Orthopedics, Rural Dental College, Pravara Institute of Medical Sciences, Loni, Maharashtra, India

Correspondence Address:
Dr. Gaurav Ramdhan Shinde
Department of Pedodontics and Preventive Dentistry, SMBT Dental College and Hospital, Sangamner 422608, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JPBS.JPBS_76_19

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Aim: Assessment of root morphology, size, and amount of bone around tooth is essential before starting the orthodontic treatment. The present study aimed to assess the relationship between tooth dimensions with two gene variants of growth hormone (GH), namely rs6184 and rs6180. Materials and Methods: This study was conducted on 218 subjects (males: 104, females: 114) requiring orthodontic treatment. All underwent cone beam computed tomography (CBCT) scan for orthodontic treatment planning with Kodak CBCT machine. In all teeth, crown height (CH), root length (RL), and crown–root ratio were evaluated. Two growth hormone receptor (GHR) variants (rs6184 and rs6180) were genotyped using the TaqMan genotyping assay. Results: The mean CH and RL of all teeth, that is, maxillary and mandibular central incisors, lateral incisor, canine, first premolar, second premolar, first molar, and second molar, were measured. There was no significant difference in males and females (P > 0.05). Allele frequencies of GHR variants for rs6180 and rs6184 were 48.1% and 8.92%, respectively. Multiple regression analysis showed GHR rs6184 association with maxillary central incisor CH, maxillary canine RL, mandibular canine CH, and mandibular first premolar RL (P < 0.05). Conclusion: There was correlation of CH of maxillary and mandibular canine and RL of maxillary canine and mandibular first premolar with GHR rs6184.

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