The Effect Of Composite Finishing And Polishing Procedures On Primary Tooth Pulp Temperature Change

Abstract

Purpose: The purpose of this study was to evaluate the effect of different finishing and polishing systems on intrapulpal temperature of primary teeth assessed using a pulpal blood microcirculation model. Materials and methods: 10 sound human maxillary second primary molars used. Standardized Class V cavity preparations were performed with dentin thickness of 1 mm and restored with composite resin. The teeth divided into 6 groups with same ten samples in each group: Enhance finishing cup, Enhance PoGo polishing cup, Sof-Lex spiral finishing wheel, Sof-Lex spiral polishing wheel, Super-Snap Rainbow finishing disc, Super-Snap Rainbow super-polishing disc (n=10 per group). These 3 finishing and 3 polishing tips were applied to the restorations on the teeth with a force of 0.4 N, at a speed of 10 000 rpm for 10 seconds with the help of a slow-speed handpiece and a micromotor. The highest temperature increase were measured and noted. Results: The highest temperature rises was seen in the Enhance finishing cup and Sof-Lex spiral finishing wheel groups with 2.3°C, and the lowest temperature measurement was in the Super-Snap Rainbow SuperPolishing Disc group with 1.1°C. Super-Snap Rainbow super-polishing disc group demonstrated significantly lower mean values in comparison with all finishing groups and Sof-Lex spiral polishing wheel. None of the groups exceeded the critical intrapulpal temperature increase of 5.6°C that causes irreversible damage. Conclusion: Under these study conditions, it can be suggested that the temperature increase effects of dry applied finishing and polishing systems on primary teeth pulps are within safe limits. © 2021, Pamukkale University. All rights reserved.