ABSTRACT
OBJECTIVE: The objective of the present study was to clinically evaluate the hybrid materials Vitremer and Dyract when used as pit and fissure sealants. METHOD AND MATERIALS: The materials were applied in pairs on the mandibular permanent first molars of 100 children, 7 to 8 years old. RESULTS: After 12 months of sealing, the clinical evaluation presented rates of 95.9% and 85.7% of complete retention for Dyract and Vitremer, respectively, indicating a statistically significant difference. The hybrid materials presented a statistically significant protective effect against caries compared with the control group at 6 and 12 months. CONCLUSION: The hybrid materials were able to control occlusal caries.
Subject(s)
Dental Bonding , Dental Caries/prevention & control , Glass Ionomer Cements/therapeutic use , Pit and Fissure Sealants/therapeutic use , Resin Cements/therapeutic use , Acid Etching, Dental , Case-Control Studies , Child , Compomers/therapeutic use , Composite Resins/therapeutic use , Dental Amalgam , Dental Restoration, Permanent , Follow-Up Studies , Humans , Methacrylates/therapeutic use , Molar , Odds Ratio , Silicates/therapeutic use , Surface PropertiesABSTRACT
The flow rate capacity, hydrolytic degradation and radiopacity of three resin-based cements were tested and compared with zinc phosphate cement, when used in accordance with the manufacturer's instructions. There are no significant differences among the cements with regard to the flow rate. The zinc phosphate cement showed superior hydrolytic degradation compared with the other cements tested. The cements presented different radiopacities and the zinc phosphate cement was the most radiopaque. The results suggest that the development of resin-based materials associated with adhesive procedures can increase the effectiveness of indirect restorations.
