Temperature Rise under Normal and Caries-Affected Primary Tooth Dentin Disks during Polymerization of Adhesives and Resin-containing Dental Materials

• Published in: Dental Materials Journal Vol. 27; no. 3; pp. 466 - 470
• Main Authors: TOSUN, Gul, USUMEZ, Aslihan, YONDEM, Isa, SENER, Yagmur
• Format: Journal Article
• Language: English
• Published: Japan The Japanese Society for Dental Materials and Devices 2008
• Subjects: Acrylic Resins - chemistry; Body Temperature - physiology; Caries-affected primary tooth dentin; Compomers - chemistry; Composite Resins - chemistry; Dental Caries - physiopathology; Dental Materials - chemistry; Dental Restoration, Permanent; Dentin - physiopathology; Dentin-Bonding Agents - chemistry; Glass Ionomer Cements - chemistry; Humans; Light; Materials Testing; Photopolymerization; Polymers - chemistry; Radiation Dosage; Resin Cements - chemistry; Signal Processing, Computer-Assisted; Temperature rise; Thermometers; Tooth, Deciduous - physiopathology
• ISSN: 0287-4547; 1881-1361
• DOI: 10.4012/dmj.27.466

The purpose of this study was to compare the temperature rise under normal and caries-affected primary tooth dentin during photopolymerization of two adhesives and resin-containing restorative materials. Caries-affected and normal dentin disks were prepared from extracted primary molars with only mesial or distal approximal caries (4 mm in diameter, 1 mm in height). Temperature rise during photopolymerization of adhesive materials was measured with a J-type thermocouple wire that was connected to a data logger. Data were analyzed with two-way ANOVA and independent samples t-test. Temperature rise under caries-affected primary tooth dentin disks was higher than that of normal primary tooth dentin disks during polymerization of both adhesive systems and resin-containing dental materials (p<0.05). It was found that adhesive systems induced a higher temperature rise during polymerization as compared to the resin-containing restorative materials (p<0.05). In particular, temperature rise during polymerization of adhesive materials exceeded 5.5°C under caries-affected primary tooth dentin.