…dentine fills the space between the pulp cavity and the enamel or cementum (Fig. 3). The inorganic foundation of these three hard tissues of the tooth is hydroxyapatite Ca 10 (PO 4 ) 6 (OH) 2 , just like that of bone, with various substances present in the form of substitution or adsorption. The size of the inorganic crystals is larger than that of bone, and enamel is the largest in teeth. … *Some of the terminology explanations that mention "hydroxy-apatite" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この歯髄腔と,エナメル質あるいはセメント質との間を象牙質dentineが埋めている(図3)。歯のこの三つの硬組織に含まれる無機質の土台は,骨のそれと同様に,ヒドロキシアパタイトhydroxy‐apatite Ca10(PO4)6(OH)2で,これに種々な物質が置換あるいは吸着の形をとって存在している。無機質の結晶の大きさは骨のそれより大きく,歯の中ではエナメル質が最も大きい。… ※「hydroxy-apatite」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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