Three-dimensional evaluation of maxillary anterior alveolar bone for optimal placement of miniscrew implants.
10.4041/kjod.2014.44.2.54
- Author:
Jin Hwan CHOI
1
;
Hyung Seog YU
;
Kee Joon LEE
;
Young Chel PARK
Author Information
1. Private Practice, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Cone-beam computed tomography;
Upper incisor intrusion;
Cortical bone thickness;
Gummy smile;
Miniscrew implant
- MeSH:
Adult;
Cone-Beam Computed Tomography;
Female;
Humans;
Incisor;
Male;
Tooth Cervix
- From:The Korean Journal of Orthodontics
2014;44(2):54-61
- CountryRepublic of Korea
- Language:English
-
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.
