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

Cytotoxicity evaluation of luting resin cements on bovine dental pulp-derived cells (bDPCs) by real-time cell analysis

“…The main purpose of luting cements is to cement a fixed restoration to a prepared tooth surface. Additionally, these materials must contribute to protecting the exposed enamel, dentin, and pulpal tissues from thermal, mechanical, and microbial effects, as well as maintain phonetics, aesthetics, and masticatory function 16,17) . Several in vitro cytotoxicity study models, such as inhibition of cell growth, effects of membrane or cytoplasmic marker cytolysis, mitochondrial dehydrogenase of active cells, and changes in metabolic activity, have been designed in the past 30 years to overcome the disadvantages of in vivo study designs, which evaluate biological response to different dental 14,18) .…”

Quantification of residual dentine thickness following crown preparation

“…1 for key) and the outline of the original tooth shape; rendered with Drishti (Australian National University). a greater temperature rise during curing 36 at the very point where the residual dentine is thinnest.…”

Effect of simulated pulpal blood flow rate on the rise in pulp chamber temperature during direct fabrication of exothermic provisional restorations

“…Seelbach et al . () reported that the amount of heat generation is directly proportional to the volume of the resin used. Therefore, significantly more heat is generated during the fabrication of a large provisional crown or a fixed bridge, which increases the risk of the thermal insult to pulps.…”

“…Several studies reported that a PMMA resin generates significantly more heat during a polymerization reaction than the other provisional resins (Burns et al 2003). Seelbach et al (2010) reported that the amount of heat generation is directly proportional to the volume of the resin used. Therefore, significantly more heat is generated during the fabrication of a large provisional crown or a fixed bridge, which increases the risk of the thermal insult to pulps.…”

“…The thermal behaviour of a tooth is affected by the remaining dentine thickness. The literature indicates an insulating effect of thick dentine, with teeth having small amounts of dentine being more prone to temperature increases, especially for thicknesses of 1 mm or less (Seelbach et al 2010). The thermal behaviour of a tooth is mainly a heat conduction process coupled with the physiological processes of the dentinal fluid flow and pulpal blood flow (Lin et al 2010).…”