RT  - Journal of Clinical Pediatric Dentistry
ID  - 10.17796/jcpd.26.3.aun5413hm163g344
T1  - Artificial formed caries-like lesions around esthetic restorative materials
A1  - Nuray Attar
A1  - Alev Önen
YR  - 2002
SP  - 289
AB  - <p>Dental restorations fail for a variety of reasons. Secondary caries is one of the primary causes of fail-ure of dental restorations. One method for reducing frequency and severity of this problem is the use of fluoride containing restorative materials. The ability of a material to inhibit secondary caries for-mation is an important clinical therapeutic property. This investigation assessed the capacity of esthetic restorative materials to resist caries in vitro.Class V cavities were prepared in buccal and lingual sur-faces of 50 extracted sound third molars. The occlusal and gingival cavosurface margin of each prepa-ration was on enamel surface. The five materials were used: Conventional glass ionomer cement Cer-amfil ß (PSP), two polyacid modified resin composites Compoglass (Vivadent) and Dyract (Dentsply/DeTrey), non fluoride releasing composite resin Valux Plus (3M) and fluoride releasing composite resin Tetric (Vivadent). After 10 weeks in an acid gel for caries-like lesion formation, the teeth were sectioned occluso-gingivally through the middle of the restorations and examined by polar-ized light microscopy, while immersed in water. The statistical analysis of the results showed that sec-ondary caries initiation and progression might be reduced significantly when fluoride-containing materials were placed. The conventional glass ionomer cement (Ceramfil ß) provided the highest pro-tection against caries attack and the non-fluoride releasing composite resin (Valux Plus) restoration provided the least (p&lt;0.05).</p>