Thermal Conductive Effects of Abutment Teeth : Investigation of the relationship between the amount of labial shoulder margin and incisal preparation for porcelain fused to metal crowns
A study was carried out on the thermal conductive effect of interpulpal temperature under thermal stimulus to vital teeth, by means of the 2-dimensional finite element method. The results obtained were as follows: 1) The temperature on the pulp horn requires the least amount of preparation for shoulder margin, and the largest amount of preparation for incisors. 2) The temperature elsewhere decreases as the amount of preparation for shoulder margin increases, and the amount increases in preparation for incisors. 3) The temperature on the part of labial cervical pulp clearly shows a wider amount of preparation for shoulder margin in comparison with the largest amount of preparaiton for incisors. 4) The temperature of the pulp horns were the lowest under all conditions.
支台歯の熱伝導解析 : 陶材溶着鋳造冠支台歯形成における唇面ショルダー幅および切縁削除量との関係
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