Rinawati Satrio, Ryana Budi Purnama and Arwin Diva Nafida 2025. THE EFFECT OF PREHEATING AT 39o AND 60o ON COMPRESSION STRENGTH OF BULK-FILL COMPOSITE RESIN. Journal of Vocational Health Studies. 9, 2 (Nov. 2025), 117–122. DOI:https://doi.org/10.20473/jvhs.V9.I2.2025.117-122.