The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Three-dimensional evaluation of maxillary anterior alveolar bone for optimal placement of miniscrew implants

  • Choi, Jin Hwan (Private Practice) ;
  • Yu, Hyung Seog (Department of Orthodontics, College of Dentistry, Yonsei University) ;
  • Lee, Kee Joon (Department of Orthodontics, College of Dentistry, Yonsei University) ;
  • Park, Young Chel (Department of Orthodontics, College of Dentistry, Yonsei University)
  • Received : 2013.05.26
  • Accepted : 2013.08.21
  • Published : 2014.03.25
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Abstract

Objective: This study aimed to propose clinical guidelines for placing miniscrew implants using the results obtained from 3-dimensional analysis of maxillary anterior interdental alveolar bone by cone-beam computed tomography (CBCT). Methods: By using CBCT data from 52 adult patients (17 men and 35 women; mean age, 27.9 years), alveolar bone were measured in 3 regions: between the maxillary central incisors (U1-U1), between the maxillary central incisor and maxillary lateral incisor (U1-U2), and between the maxillary lateral incisor and the canine (U2-U3). Cortical bone thickness, labio-palatal thickness, and interdental root distance were measured at 4 mm, 6 mm, and 8 mm apical to the interdental cementoenamel junction (ICEJ). Results: The cortical bone thickness significantly increased from the U1-U1 region to the U2-U3 region (p < 0.05). The labio-palatal thickness was significantly less in the U1-U1 region (p < 0.05), and the interdental root distance was significantly less in the U1-U2 region (p < 0.05). Conclusions: The results of this study suggest that the interdental root regions U2-U3 and U1-U1 are the best sites for placing miniscrew implants into maxillary anterior alveolar bone.

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References

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