Intrapulpal Heat Generation during Provisionalization: Effect of Desensitizer and Matrix Type

Abstract

Application of a desensitizer and different type of matrix seems to be noneffective on intrapulpal heat rise, although the type of provisional material used may be effective.

Temperature rise on dentin caused by temporary crown and fixed partial denture materials: Influencing factors

“…12,24,26 However, this observation cannot necessarily be transferred to other type of mono-methacrylates due to differences in composition (especially activator/retarder concentration). 15,18,20,21 The increase in heat for the 4 mm specimens of Luxatemp AM Plus and Protemp 3 Garant did match very well the temperatures determined by Kim & Watts. 15 As it is clinically impossible to assess the remaining dentin layer thickness (especially as it may greatly vary within a single preparation) as well as the amount of t-c&b, it is recommended to use a t-c&b with as low curing temperature as possible.…”

“…[10][11][12]15,17,18,[20][21][22][23][24][25][26]31 As the latter studies did -howevernot take into consideration variations of the residual dentin layer as well as the thickness of the t-c&b in a single setup, it was the aim of this study to investigate this clinically important issue, since interactions between these two factors are most likely. Summarizing the results requires rejection of all parts of the null-hypotheses.…”

“…10,16,17,22,23,35 In the present study, a vinyl-polysiloxane impression material was used as matrix, which reportedly acts like a heat sink. 10,12,18,22 The simulated impression tray with the plug allowed to produce a uniform thickness of impression material for all tc&b discs, i.e. the volume of impression material was identical in all cases.…”

“…12,15,19 In vitro test-setups have been developed for determination of the temperature occurring inside the pulp chamber to asses the potential of pulp damage. 10,12,17,18,[20][21][22][23][24][25][26] The temperatures determined range between 40 8C and 80 8C. 8,11 With composite-based t-c&bs, the potential of pulp injury is regarded lower compared to products based on monomethacrylates.…”

“…15 In addition, the maximum temperature occurring at the adjacent side of the pulp chamber is dependant on variables related to the clinical manipulation of these materials (i.e. fabrication technique, type of matrix used), 3,10,[16][17][18] as well as to the remaining thickness of the cut dentin wall. 12,15,19 In vitro test-setups have been developed for determination of the temperature occurring inside the pulp chamber to asses the potential of pulp damage.…”