Cusp Size Variability of the Maxillary Molariform Teeth
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概要
- 論文の詳細を見る
The morphological differences of tooth crown components among the maxillary molariform teeth were investigated by means of an odontometric method. The second deciduous molar (dm2), and the first and second permanent molars (M1 and M2) were measured on 159 dental casts taken from Japanese males. Measurements taken on the tooth crown included the mesiodistal and buccolingual crown diameters, and the diameters of the four main cusps, the paracone, protocone, metacone and hypocone. In terms of overall crown sizes, dm2 was the smallest of the three teeth. The mesial cusps, the paracone and protocone, were significantly larger in the permanent molars (M1 and M2) than in the dm2 (P < 0.01). The distal cusps, the metacone and hypocone, were significantly larger in the M1 than in the dm2 and M2 (P < 0.01), and were similar in size in the dm2 and M2. The paracone was the most stable of the four main cusps in size. As for relative cusp size, the protocone increased distally from dm2 to M2, but no significant difference was found in the paracone. It is concluded that paracone size is proportionally stable regardless of overall tooth size.
- 日本人類学会の論文
- 2003-07-01
著者
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近藤 信太郎
昭和大学歯学部第一口腔解剖学教室
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近藤 信太郎
愛知学院大学歯学部解剖学講座
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近藤 信太郎
昭和大学 歯 小児歯
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近藤 信太郎
愛知学院大学歯学部解剖学第二講座
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Kondo S
Showa Univ. School Of Dentistry Tokyo Jpn
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Kondo Shintaro
昭和大学 歯 口腔解剖
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Kondo Shintaro
バングラデシュ
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Kondo Shintaro
昭和大学 歯 口腔解剖学
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近藤 信太郎
昭和大学歯学部第1口腔解剖学講座
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Yamada Hiroyuki
The Second Department of Medicine, Kyoto Prefectural University of Medicin
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山田 博之
愛知学院大 歯 解剖学第二
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KONDO Shintaro
Department of Medical Physiology, Meiji Pharmaceutical University
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Kondo S
The First Department Of Oral Anatomy Showa University School Of Dentistry
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Kondo Shintaro
The First Department Of Oral Anatomy Showa University School Of Dentistry
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Kondo Shintaro
Department Of Anatomy School Of Dentistry Aichi-gakuin University
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Kondo Shintaro
Department Of Oral Anatomy Showa University School Of Dentistry
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Kondo Shintaro
Department Of Oral Anatomy And Developmental Biology Showa University School Of Dentistry
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Kondo Shintaro
Showa University
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Kondo S
昭和大学 歯 口解剖
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Kondo Shintaro
Dept. Oral Anatomy Showa Univ. School Of Dentistry
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Yamada Hiroyuki
The Second Department Of Medicine Kyoto Prefectural University Of Medicin
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Yamada Hiroyuki
Department Of Anatomy School Of Dentistry Aichi-gakuin University
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