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Relationships between dental roots and surrounding tissues for orthodontic miniscrew installation

Authors
 Kyung-Seok Hu  ;  Min-Kyu Kang  ;  Tae-Won Kim  ;  Kyung-Ho Kim  ;  Hee-Jin Kim 
Citation
 ANGLE ORTHODONTIST, Vol.79(1) : 37-45, 2009 
Journal Title
 ANGLE ORTHODONTIST 
ISSN
 0003-3219 
Issue Date
2009
MeSH
Adult ; Aged ; Aged, 80 and over ; Alveolar Process/anatomy & histology* ; Bone Screws* ; Dental Implantation, Endosseous ; Equipment Design ; Female ; Humans ; Male ; Mandible/anatomy & histology ; Maxilla/anatomy & histology ; Middle Aged ; Miniaturization ; Orthodontic Anchorage Procedures/instrumentation* ; Orthodontic Anchorage Procedures/methods* ; Tooth Root/anatomy & histology*
Keywords
Dental root ; Interroot distance ; Miniscrew ; Complication
Abstract
OBJECTIVE: To elucidate relationships between the dental roots and surrounding tissues in order to prevent complications after placement of a miniscrew. MATERIALS AND METHODS: Twenty human mandibles and maxillas were used for this study. In the 200 sections of each mandible and maxilla, nine items were measured to investigate the relationships between the dental roots. RESULTS: The interroot distance increased from anterior to posterior teeth and from the cervical line to the root apex in both the maxilla and the mandible. In the maxilla, the greatest interroot distance was between the second premolar and the first molar. In the mandible, the greatest interroot distance was between the first and second molars. The maxillary buccolingual bone width exceeded 10 mm from 7 mm (between canine and first premolar), 5 mm (between second premolar and first molar), and 4 mm (between first and second molars) above the cervical line. The mandibular buccolingual bone width exceeded 10 mm from 7 mm (between second premolar and first molar) and 4 mm (between first and second molars) below the cervical line. CONCLUSIONS: The safest zone for placement of a miniscrew in the maxilla was between the second premolar and the first molar, from 6 to 8 mm from the cervical line. The safest zone for placement of a miniscrew in the mandible was between the first and second molars, less than 5 mm from the cervical line.
Full Text
http://www.angle.org/doi/full/10.2319/083107-405.1
DOI
10.2319/083107-405.1
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Min Kyu(강민규)
Kim, Kyung Ho(김경호) ORCID logo https://orcid.org/0000-0002-8154-2041
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/103454
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