Korean J Orthod.  2014 Mar;44(2):54-61. 10.4041/kjod.2014.44.2.54.

Three-dimensional evaluation of maxillary anterior alveolar bone for optimal placement of miniscrew implants

• Choi JH
• Yu HS
• Lee KJ
• Park YC

• KMID: 2273427
• DOI: http://doi.org/10.4041/kjod.2014.44.2.54

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.

Keyword

Cone-beam computed tomography; Upper incisor intrusion; Cortical bone thickness; Gummy smile; Miniscrew implant

MeSH Terms

Adult
Cone-Beam Computed Tomography
Female
Humans
Incisor
Male
Tooth Cervix