A Comprehensive evaluation of the clinical efficacy of aqua coolant influencing the variation in pulpal temperature during tooth preparation: An In vivo study

Preservation of the pulpal architecture and its health is always the supreme biological objective during tooth preparation. Frictional heat generated at the bur tooth interface can elevate intrapulpal temperature and this elevation in intrapulpal temperature can deleteriously infringe the pulpal health thus contemplating an in vivo evaluation of the pulpal behavioral response to temperature variation. This in vivo study on 20 premolars (maxillary/ mandibular) evaluated the variation in intrapulpal temperature during tooth preparation with and without the use of aqua coolant. This study also appraised the advantage offered by aqua coolant at every stage of tooth preparation with the aid of digital temperature indicator and thermocouple. The results of the study were tabulated and presented. Within the limitations of the study following conclusions can be derived at: (a). Use of aqua coolant produces 4.25°F additional cooling during tooth preparation as compared to without the use of aqua coolant. (b). Intrapulpal temperature shows a regressive mode 7.27°F during tooth preparation with aqua coolant and 2.80°F during tooth preparation without aqua coolant. (c). Intrapulpal temperature is 1.9° F lesser than intra oral temperature. (d). Chilling effect of aqua coolant is most influential in reducing thermogenesis during groove type tooth preparation. Thus this study endorses the effective application of aqua coolant in diffusing heat generation during tooth preparation and highlighting the relative efficacy the aqua coolant provides at every stage of tooth preparation