1980
DOI: 10.1016/0022-3913(80)90185-7
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In vivo measurements of thermal diffusion through restorations of various materials

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Cited by 38 publications
(25 citation statements)
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“…Harper et al (1980) confirm this, since they found that, at a depth of 2 mm, the temperature of amalgam restorations subjected to a 28 C change reached the new temperature in about six seconds. Analysis of these data indicates that the amalgam/ stainless-steel specimen, to a depth of several millimeters, will reach the bath temperature by the completion of the immersion portion of the cycle.…”
Section: Methodssupporting
confidence: 52%
“…Harper et al (1980) confirm this, since they found that, at a depth of 2 mm, the temperature of amalgam restorations subjected to a 28 C change reached the new temperature in about six seconds. Analysis of these data indicates that the amalgam/ stainless-steel specimen, to a depth of several millimeters, will reach the bath temperature by the completion of the immersion portion of the cycle.…”
Section: Methodssupporting
confidence: 52%
“…Ağız içinde değişen koşulların nanosızıntıya etkisinin araştırıldığı önceki çalışmalara bakıldığında çelişkili sonuçlara rastlanmaktır. Bazı çalışmalar yaşlandırma sonrası nanosızıntının arttığını bildirirken 18,45,46 ; bazıları nanoszıntıyı etkilmediğini bildirmiştir 47,48 . Frankenberger 49 ise termomekanik yaşlandırma sonrası nanosızıntıda azalma tespit etmiş ve bunu mekanik yükleme sayının artmasıyla ara yüzdeki suyun sıkışıp dışa doğru akarak nanosızıntının azalmasına neden olduğu şeklinde açıklamıştır.…”
Section: Discussionunclassified
“…The results are in agreement with those of previous microleakage studies 21,22) . Harper et al 18) showed that the rate of temperature change beneath resin restorations was relatively low after taking cold or hot fluids, indicating that the linear coefficient of thermal expansion would not greatly influence the dimensional change of the material and therefore not affect microleakage. Stryom et al 23) suggested that the bonding of the adhesive to tooth structure is micro-mechanical in nature and would not be adversely affected by temperature cycling.…”
Section: ⅳ Discussionmentioning
confidence: 99%
“…Harper et al 18) pointed out that a patient would not tolerate direct contact of vital tooth with extremely hot or cold substances for extended periods of time, so dwell time longer than 15 sec would seem to be inappropriate. According to the study of Miyazaky et al 19) , the bond strength of dentin adhesive systems decreased after 30,000 cycles, especially in the self etching systems.…”
Section: ⅳ Discussionmentioning
confidence: 99%