Relationships between dental roots and surrounding tissues for orthodontic miniscrew installation

Kyung Seok Hu, Min Kyu Kang, Tae Won Kim, Kyung Ho Kim, Hee Jin Kim

Research output: Contribution to journalArticle

25 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)37-45
Number of pages9
JournalAngle Orthodontist
Volume79
Issue number1
DOIs
Publication statusPublished - 2009 Jan 1

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Tooth Root
Maxilla
Orthodontics
Bicuspid
Mandible
Canidae
Tooth
Bone and Bones

All Science Journal Classification (ASJC) codes

  • Orthodontics

Cite this

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title = "Relationships between dental roots and surrounding tissues for orthodontic miniscrew installation",
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.",
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Relationships between dental roots and surrounding tissues for orthodontic miniscrew installation. / Hu, Kyung Seok; Kang, Min Kyu; Kim, Tae Won; Kim, Kyung Ho; Kim, Hee Jin.

In: Angle Orthodontist, Vol. 79, No. 1, 01.01.2009, p. 37-45.

Research output: Contribution to journalArticle

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AU - Kim, Hee Jin

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