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Soft-tissue and cortical-bone thickness at orthodontic implant sites

Authors
 Hee-Jin Kim  ;  Hee-Sun Yun  ;  Hyun-Do Park  ;  Doo-Hyung Kim  ;  Young-Chel Park 
Citation
 AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, Vol.130(2) : 177-182, 2006 
Journal Title
AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS
ISSN
 0889-5406 
Issue Date
2006
MeSH
Alveolar Process/anatomy & histology* ; Analysis of Variance ; Anatomy, Cross-Sectional ; Bone Density ; Bone Screws ; Cadaver ; Female ; Gingiva/anatomy & histology* ; Humans ; Male ; Middle Aged ; Miniaturization ; Mouth Mucosa/anatomy & histology ; Orthodontic Anchorage Procedures/instrumentation* ; Palate, Hard/anatomy & histology* ; Reference Values
Abstract
INTRODUCTION: To obtain sufficient stability of implants, the thickness of the soft tissue and the cortical bone in the placement site must be considered. However, the literature contains few anatomical studies of orthodontic implants.
METHODS: To measure soft-tissue and cortical-bone thicknesses, maxillae from 23 Korean cadavers were decalcified, and buccopalatal cross-sectional specimens were obtained. These specimens were made at 3 maxillary midpalatal suture areas: the interdental area between the first and second premolars (group 1), the interdental area between the second premolar and the first molar (group 2), and the interdental area between the first and second molars (group 3).
RESULTS: In all groups, buccal soft tissues were thickest closest to and farthest from the cementoenamel junction (CEJ) and thinnest in the middle. Palatal soft-tissue thickness increased gradually from the CEJ toward the apical region in all groups. Buccal cortical-bone was thickest closest to and farthest from the CEJ and thinnest in the middle in groups 1 and 2. Palatal cortical-bone thickness was greatest 6 mm apical to the CEJ in groups 1 and 3, and 2 mm apical to the CEJ in group 2. Along the midpalatal suture, palatal mucosa remained uniformly 1 mm thick posterior to the incisive papilla.
CONCLUSIONS: Surgical placement of miniscrew implants for orthodontic anchorage in the maxillary molar region requires consideration of the placement site and angle based on anatomical characteristics.
Full Text
http://www.sciencedirect.com/science/article/pii/S0889540606005622
DOI
10.1016/j.ajodo.2004.12.024
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
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Park, Young Chel(박영철)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/109110
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