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The interdental plate refers to the bone-filled mesial-distal region between the teeth. The word "''interdental''" is a combination of "''inter''" + "''dental''" (meaning "''between the teeth''") which originated in approximately 1870.〔(【引用サイトリンク】 title=Interdental )〕 In paleobiology, the presence or absence of the interdental plate can determine the place of an animal in the evolutionary scale, and paleontologists use the interdental plate when trying to classify a new specimen. Thecodont reptiles and theropod dinosaur fossils have an interdental plate, whereas acrodont reptiles such as ''Sphenodontia'' do not.〔(Tooth Implantation ). ''Palaeos.com''. Retrieved on 2007-03-13.〕 Its presence in ''Archaeopteryx'', an extinct avian, resulted in the proposal of the dinosaur-bird connection. The term can also be used to refer to a manufactured object designed to be placed or worn between the teeth. An example would be a dental prosthetic designed to prevent contact between the teeth while the wearer is sleeping. relates to an apparatus designed to measure the pressure exerted by the tongue as a means of diagnosing ailments related to swallowing. ==See also== * Interdental consonant * Interdental lisp * Interdental woodstick * Unvoiced interdental fricative * Voiced interdental fricative * Voiceless interdental fricative 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Interdental plate」の詳細全文を読む スポンサード リンク
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