The effect of dentin desensitizer with different layers on thermal changes on the pulp during fabrication of provisional restoration

Abstract

The thickness of desensitizing agents affected the thermal changes; however, the desensitizers did not affect on the intrapulpal temperature although the type of provisional material used may be effective.

Effect of Dentin Bonding Agent on Intrapulpal Temperature during Fabrication of Provisional Restorations by a Direct Method: An In Vitro Study

“…They also restore normal tooth function, prevent occlusal changes, and tooth migration. 8 Provisional restorations should be the same as definitive restorations in all aspects, except for the material from which they are fabricated. 9 Therefore, when considering the benefits of temporization, it cannot be avoided.…”

“…These include use of air and water coolant, 5 , 6 repeated removal and replacement of the template, using a matrix material that can dissipate heat rapidly 7 or the application of desensitizing agents that occludes the dentinal tubules. 8 During or after crown preparation, as many as 1-2 million dentinal tubules may be exposed, increasing the potential for postoperative sensitivity. 8 , 9 Desensitizing agents occlude tubules by salt precipitation or resin deposition.…”

“…Dentin adhesive systems, which seal the tubules from external stimuli, e.g., hot and cold, may prevent hydrodynamic fluid shifts, thereby stopping the stimulation of the nerve fibers and the resulting pain. 8 Gurbulak et al reported that the thickness of desensitizing agents affected the thermal changes and the double layer was more effective than the single layer. 8 The purpose of this in vitro study was to test the effect of DBA when applied as a single or double layer on thermal changes in the pulp chamber using a thermocouple during direct fabrication of provisional restorations with three different PRMs.…”

“…8 Gurbulak et al reported that the thickness of desensitizing agents affected the thermal changes and the double layer was more effective than the single layer. 8 The purpose of this in vitro study was to test the effect of DBA when applied as a single or double layer on thermal changes in the pulp chamber using a thermocouple during direct fabrication of provisional restorations with three different PRMs.…”

Effect of dentin desensitizing procedures on methyl methacrylate diffusion through dentin

“…[26] In fabrication of the provisional restorations two principal methods may be used; direct and indirect. [27] High pulpal damage risk, due to the light-activated resin composite and polymerization of autopolymerizing resin and has been equally well-documented. This problem is associated primarily with direct methods of fabrication [28] and the effect of external agents on dentin sensitivity can be reduced by the obliteration of the tubules with the use of DA.…”