The marginal seal of various restorative materials in primary molars.
The use of resin composite restorations in posterior teeth has become an accepted clinical procedure. Microleakage at the posterior composite/tooth interface is a major problem. The in vitro quality of the marginal seal was tested in eighty teeth extracted for orthodontic reasons using a glass-ionomer cement reinforced with amalgam, two light self-curing glass-ionomer cements and a compomer. All the teeth were subjected to thermocycling to simulate clinical situation. Compomers showed the best mechanical and esthetic properties combined with a good marginal seal.
Morabito
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Department of Pedodontics, University of Torino, Italy.
Defabianis
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P
D020770:Compomers; D003188:Composite Resins / Q000737:chemistry*; D003763:Dental Leakage; D018772:Dental Marginal Adaptation; D005069:Evaluation Studies as Topic; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008689:Methacrylates; D008963:Molar; D019279:Resin Cements / Q000737:chemistry*; D012117:Resins, Synthetic; D017640:Silicates; D014094:Tooth, Deciduous
D020770:Compomers; D003188:Composite Resins; C088486:Dyract; D005899:Glass Ionomer Cements; D008689:Methacrylates; C081144:Photac-Fil; D019279:Resin Cements; D012117:Resins, Synthetic; D017640:Silicates; C084550:Vitremer; C078801:Miracle Mix