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Morphologic evaluation of the incisive canal and its proximity to the maxillary central incisors using computed tomography images.

Authors
 Eun-Ae Cho  ;  Sung-Jin Kim  ;  Yoon Jeong Choi  ;  Kyung-Ho Kim  ;  Chooryung J. Chung 
Citation
 Angle Orthodontist, Vol.86(4) : 571-576, 2016 
Journal Title
 Angle Orthodontist 
ISSN
 0003-3219 
Issue Date
2016
MeSH
Adult ; Cone-Beam Computed Tomography* ; Cross-Sectional Studies ; Humans ; Incisor* ; Maxilla* ; Tooth Root
Keywords
Complication ; Envelope of discrepancy ; Incisive canal ; Maximum retraction ; Tooth movement
Abstract
OBJECTIVE: To evaluate the morphologic features and the relative position of the incisive canal with regard to the maxillary incisor roots using computed tomography (CT). MATERIALS AND METHODS: Morphologic evaluation of the incisive canal and its proximity to the maxillary central incisors were measured using CT images of 38 adults with skeletal and dental class I normal occlusion. Linear measurements were performed on the axial cross-sectional images corresponding to three vertical levels, the palatal opening of the incisive canal (L1), midlevel between the opening level and the root apex of the maxillary central incisors (L2), and the root apex of the maxillary central incisors (L3). RESULTS: The percentage of subjects with an incisive canal width greater than the interroot distance of the central incisors was 86.8% and 63.2% at levels L1 and L2, respectively. The anteroposterior distance between the maxillary incisor roots and the boarder of the incisive canal was approximately 5-6 mm at levels L1 and L2. CONCLUSION: The anteroposterior distance between the maxillary central incisor roots and the incisive canal was approximately 5-6 mm. More than 60% of the subjects had an incisive canal width greater than the interroot distance. Evaluation of the proximity of the incisive canal to the maxillary incisors, along with its dimensional characteristics, may be helpful when a considerable amount of maxillary retraction is planned.
Files in This Item:
T201602272.pdf Download
DOI
10.2319/063015-433.1
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Ho(김경호) ORCID logo https://orcid.org/0000-0002-8154-2041
Kim, Sung Jin(김성진) ORCID logo https://orcid.org/0000-0003-4115-0403
Chung, Chooryung J.(정주령) ORCID logo https://orcid.org/0000-0001-9399-7193
Choi, Yoon Jeong(최윤정) ORCID logo https://orcid.org/0000-0003-0781-8836
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/147179
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