Influence of simulated pulpal pressure on the variation of intrapulpal temperature during adhesive system light-curing / Influência da pressão pulpar simulada na variação de temperatura intrapulpar durante a fotopolimerização do sistema adesivo
Silva, Tânia Mara da; Gonçalves, Lucélia Lemes; Siqueira, Erika Priscila; Pereira, Tatiana Cursino; Pontes, Solimar de Oliveira; Grecca, Amanda Reis; Lopes, Stephanie Ribeiro; Gonçalves, Sérgio Eduardo de Paiva.
Braz. dent. sci
; 20(2): 55-61, 2017. tab, graf
Artículo
en Inglés
| LILACS, BBO - odontología (Brasil) | ID: biblio-837458
Objective:
To evaluate the effects of simulated pulpal pressure (SPP) on the variation of intrapulpal temperature (ïT) during lightcuring of the adhesive system. Material andMethods:
One hundred sound human molars were sectioned from the highest pulp horn to obtain a 2-mm of thickness dentin. The specimens were randomly divided into two groups (n = 50), according to the presence or absence of SPP (15 cm H2 O). The specimens were sequentially treated as follows 37% phosphoric acid (Scotchbond Universal; 3M/ESPE), adhesive system (Scotchbond Universal/3M ESPE) and light-curing (10 s). ïT was evaluated during adhesive lightcuring with a K-type thermometer put inside the pulp chamber. Data were analysed by using Mann-Whitney's test (at 5%).Results:
According to Mann-Whitney's test, the absence group presented a ïT of 2 °C, whereas the presence group 1 °C. The mean values of ïT were 0.82 ± 0.56 °C for the presence group and 2.30±0.73 °C for the absence group.Conclusion:
Simulated pulpal pressure significantly reduced the temperature rise in the pulp chamber during light-curing of the adhesive system, showing the importance of inserting this protocol of simulated pulpal pressure in the laboratory procedures.(AU)
Biblioteca responsable:
BR243.1
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