The aim of this study is to evaluate the action of the synthetic chalcone 1-phenyl-3-(4-chlorophenyl)-2-propen-1-one to induce pulp healing in rats. Material and Methods: Sixty lower first molars of male Wistar rats were divided into 3 groups (n=20): control (no treatment); calcium hydroxide and chalcone. After relative isolation, the cavities were prepared using a sterile low-speed ¼ round dental bur. After controlling the hemorrhaging, all the pulp exposures were capped with the capping

more »

... al, by groups. The cavities were sealed with glass ionomer cement and the repair process was assessed at 21 days of procedure. The data were statistically analyzed using the Fisher exact test (p<0.05). Results: Moderate inflammation was observed in all the experimental groups and significant (p<0.05) reparative dentin (tertiary) formation in the calcium hydroxide and chalcone groups. The chalcone group showed dentinal tubules and a low number of cellular inclusions (p<0.05). Conclusion: The chalcone used in this study indicates potential as an inducer of reparative dentine (tertiary) in a rat model. Evaluation of direct pulp capping with a synthetic chalcone: a preliminary histological study.