[Temperature loading of resin-bonded bridges and its effect on the composite strength of the adhesive bond].
Acid-etched prostheses are exposed in the oral cavity to pressure of mastication, to corrosion due to oral fluids, to changes in temperature due to ingestion, and to iatrogenic influences. The changes in temperature which were measured in the adhesive layer were up to +/- 40 degrees C within a range from -2 degrees C up to about 80 degrees C. The bonding agents, which had a high softening temperature and little thermal expansion showed the least influence of temperature after the in-vitro tests. The fact that the tested bonding agents are different in chemistry influenced significantly the adhesive and cohesive characteristics. The thermal tests lead to the conclusion that for clinical use the following adhesives are to be preferred: Bis-GMA modified by monomeric phosphate (e.g. Panavia) and Bis-GMA (e.g. Microfill pontic).
Pfeiffer
P
P
Marx
R
R
D000268:Adhesiveness; D003343:Corrosion; D001840:Dental Bonding; D003738:Dental Cements / Q000494:pharmacology; D003829:Denture, Partial; D006801:Humans; D008409:Mastication; D008422:Materials Testing; D013696:Temperature
D003738:Dental Cements
Temperaturbelastung von Adhäsivbrücken und ihre Auswirkung auf die Verbundfestigkeit der Klebeverbindung.