書誌事項
- タイトル別名
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- Extreme distal movement of the unerupted mandibular premolar below the coronoid process: Report of a case.
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抄録
Occasionally an unerupted tooth moves to a location that is some distance from the site from which it arose. This is often caused by the force of a tumor or a cyst, but sometimes the mechanism of the movement cannot be identified. We report the case of a 15-yearold girl in whom an unerupted mandibular first premolar moved below the coronoid process because of no apparent cause. A dental radiograph taken at the age of 9 years showed that the tooth germ of 7 was located in normal position and it appeared to be erupting. However, a panoramic tomogram taken at the age of 12 years showed that F4 was located in a horizontal position below the second molar. The unerupted first premolar continued distal movement, and 3 years later it had migrated below the coronoid process. During the 6 years, it appeared to have slowly moved a distance of about 6cm. No symptoms related to the tooth have developed.<BR>We speculate that the movement was caused by rupture of the gubernacular cord, early loss of deciduous teeth, hypodontia, microdontia, or other factors.
収録刊行物
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- 日本口腔外科学会雑誌
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日本口腔外科学会雑誌 43 (2), 103-105, 1997
社団法人 日本口腔外科学会
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詳細情報 詳細情報について
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- CRID
- 1390282681504055296
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- NII論文ID
- 10011660148
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- NII書誌ID
- AN00189163
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- ISSN
- 21861579
- 00215163
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可