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http://dx.doi.org/10.4041/kjod.2009.39.6.354

Consideration of maxillary sinus bone thickness when installing miniscrews  

Kim, Do-Hyun (Department of Orthodontics, Dental Hospital, Dankuk University)
Lee, Jin-Woo (Department of Orthodontics, Dental Hospital, Dankuk University)
Cha, Kyung-Suk (Department of Orthodontics, Dental Hospital, Dankuk University)
Chung, Dong-Hwa (Department of Orthodontics, Dental Hospital, Dankuk University)
Publication Information
The korean journal of orthodontics / v.39, no.6, 2009 , pp. 354-361 More about this Journal
Abstract
Objective: Miniscrews are widely used in orthodontic treatment for the purpose of anchorage control. Maximum anchorage can be acquired by the use of miniscrews. Maxillary miniscrew has many clinical advantage for orthodontic treatment. Maxillary sinus, tooth root can be an obstacle for maxillary miniscrew installation. The purpose of this study was to find the safest area and direction of miniscrew insertion in consideration of the maxillary sinus. Methods: The maxillary sinus area of 40 patients (20 male, 20 female) was measured using 3D computed tomography and 3D reconstruction program. Results: The maxillary sinus floor was located most inferiorly between the 1st molar and 2nd molar and located most superiorly between the 1st premolar and 2nd premolar. Buccal bone thickness from the maxillary sinus is significantly thicker between the 1st molar and 2nd molar and significantly thinner between the 1st premolar and 2nd premolar. The area between the 1st premolar and 2nd premolar has a significantly longer vertical distance from CEJ to sinus in consideration of buccal bone thickness. Conclusions: Considering maxillary bone thickness, the posterior area has advantages over the anterior area for installing miniscrews safely and preventing perforation.
Keywords
Miniscrew; Maxillary sinus;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
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