Hesse A, Klinger G, Schmidt M, Schindhelm C, Berg W
Stomatol DDR. 1976 Aug;26(8):505-9.
Samples of enamel, dentine and cementum were calcined at temperatures of 500 degrees C, 800 degrees C and 1000 degrees C. The infrared spectra recorded at these temperatures were evaluated quantitatively and qualitatively. With increasing temperature, the conversion of the primarily present carbonate apatite into hydroxyapatite increased. At 800 degrees C, a hydroxyapatite proportion of 83% was found. At that, the thermal treatment produced in the dentine an increase in the degree of crystallization from 62% to 100%.
将牙釉质、牙本质和牙骨质样本在500摄氏度、800摄氏度和1000摄氏度的温度下进行煅烧。对在这些温度下记录的红外光谱进行了定量和定性评估。随着温度升高，最初存在的碳酸磷灰石向羟基磷灰石的转化增加。在800摄氏度时，发现羟基磷灰石比例为83%。此时，热处理使牙本质中的结晶度从62%增加到100%。
