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A Preparatory Study on the Changing of the Mandibular Movement based on Hellman's Dental Stage
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- Hirai Shizuko
- Department of Pediatric Dentistry, Kagoshima University Dental School
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- Okazaki Masako
- Department of Pediatric Dentistry, Kagoshima University Dental School
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- Morinushi Takanobu
- Department of Pediatric Dentistry, Kagoshima University Dental School
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- Ogura Tadashi
- Department of Pediatric Dentistry, Kagoshima University Dental School
Bibliographic Information
- Other Title
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- Hellmanの咬合発育段階に基づく下顎運動の変化についての予備的研究
- On the Mandibular Border Movement, mainly
- 主に限界運動について
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Description
The purpose of this study was to ascertain the relationship between the development of the stomatognathic system and the changing of the mandibular movement.<BR>The subjects consisted of 48 children without functional disorders of the stomatognathic system and were divided into groups from IIA to IIIC according to Hellman's dental stages.<BR>The Saphon Visi-Trainer was used as the analytic method. The mandibular border movement at the mandibular incisor was recorded using the Saphon Visi-Trainer Model 3, and was examined as to how it changed according to the progress of Hellman's dental stage.<BR>As a result, the following findings were obtained:<BR>1. According to the progress of Hellman's dental stage, the mandibular border movement was enlarged towards the anterior, exterior, inferior and posterior.<BR>2. Changing of the right and left maximal lateral occlusal positions of the mandible corresponding to the progress of Hellman's dental stage tended toward symmetry.<BR>3. Corresponding to the Hellman's dental stage, the paths of the protrusive and lateral gliding movements moved downward and showed downward convex curved lines.
Journal
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- The Japanese Journal of Pediatric Dentistry
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The Japanese Journal of Pediatric Dentistry 25 (2), 345-352, 1987
The Japanese Society of Pediatric Dentistry
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Keywords
Details 詳細情報について
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- CRID
- 1390282679662490496
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- NII Article ID
- 130004880845
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- ISSN
- 05831199
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- Text Lang
- ja
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed