PEDIATRIC DENTISTRY

Vol. 29 No. 4       JUL - AUG 2007

ISSN: 0164-1263      UBIC: ESP

ABSTRACTS

Purpose: The objective of this study was to compare the marginal leakage of cervical restorations made using alternative restorative treatment (ART) and conventional glass ionomer restorations. Methods: Sixteen permanent maxillary and mandibular first and second molars extracted for periodontal reasons with Clan V carious dentin an the buccal surfaces were prepared using ART while a second set of 29 noncarious molars had Class V preparations made with a high-speed handpiece. The occlusal margin was located in the enamel, and the gingival margin was located in the dentin/cementum. All teeth were restored with glass ionomer cement (GIC). The teeth were thermally stressed far 300 cycles and stained with methylene blue. Samples were sectioned and evaluated for microleakage. Results: One-way analysis of variance on ranks revealed no significant difference in leakage of bath the dentin and enamel margins between the conventional and ART groups. The microleakage at the dentin margin, however, was significantly greater (P<.001) than of the enamel margins in the conventional group. Conclusion: Alternative restorative treatment with GIC provides enamel and dentin margins that show comparable marginal leakage to conventionally restored permanent teeth. For the conventional restorations, leakage of the dentin margins occurs to a significantly higher extent than of the enamel margins. (Pediatr Denf 2007;29:303-7) KEYWORDS: MICROLEAKAGE, ATRAUMATIC RESTORATIVE TREATMENT, DENTIN MARGINS, ENAMEL MARGINS, GLASS IONOMER.

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