TY - JOUR ID - 245712 TI - Analyzing the Crystal Structure of Alveolar Bone and its Impact on the Rate of Tooth Movement JO - Iranian Journal of Orthodontics JA - IJO LA - en SN - 1735-5087 AU - Shirazi, Mohsen AU - Soudi, Armin AU - Baghaeian, Pedram AU - Farajzadeh Jalali, Yasamin AD - DDS, MS, Professor, Department of Orthodontics, Tehran University of Medical Sciences, Tehran, IR Iran AD - DDS, Postgraduate Student of Orthodontics, Department of Orthodontics, Tehran University of Medical Sciences, Tehran, IR Iran AD - Assistant Professor, Department of Orthodontics, School of Dentistry, Ilam University of Medical Sciences, Ilam, IR Iran Y1 - 2017 PY - 2017 VL - 12 IS - 2 SP - 1 EP - 4 KW - Hydroxyapatite KW - x KW - Ray Diffraction KW - Alveolar Bone KW - Orthodontic Tooth Movement DO - 10.5812/ijo.7590 N2 - Background: The aim of this study was to investigate the crystal structure of mineral part in the Compact and Cancellous bones in different areas of alveolar bones. Methods: In this study, 7 alveolar bone samples were prepared from buccal and distal plates of the jaws of three patients, and 4 samples from Cortical and Cancellous bone of two other patients' palate. After converting all the samples into powder, the samples were examined by using the X-RD method. Diffractogram of 1-7 samples were compared with each other and Diffractogram of 8-11 samples also were compared with each other too. Results: Comparing two corresponding points in the jaws the crystallinity degree in the mandible is higher than the maxilla. In comparison of two corresponding points in the maxilla and mandible degree of crystallinity and the crystalline hydroxyapatite on the right has been more than on the left. The amount of crystalline hydroxyapatite phase in females is more than males and crystallinity degree of this phase in males is more than females, and in younger people, the hydroxyapatite crystalline phase is more than others and crystallinity of this phase in older subjects is higher than others. Conclusions: Tooth movement, despite the influence of the same forces, is faster on left side than the right side and is faster on maxilla than mandible. Tooth movement is faster in younger people than in older subjects. UR - https://www.ijorth.com/article_245712.html L1 - https://www.ijorth.com/article_245712_e96c447c50b0d2a9864cb4803450d820.pdf ER -