Effect of restoration size on the clinical performance of posterior "packable" resin composites over 18 months

W. W. Brackett, W. D. Browning, M. G. Brackett, R. S. Callan, J. S. Blalock

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Fifty predominantly moderate or large Class II or multiple-surface Class I resin composite restorations were placed in molars under rubber dam isolation. The restorative systems used were: Alert Condensable (Jeneric/Pentron) and SureFil (Dentsply/Caulk). The restorations were classified according to size, with 7 small, 25 moderate and 18 large, of which 8 were cusp replacement restorations. Baseline, 6, 12 and 18-month double-blinded clinical evaluations were carried out using modified USPHS criteria. The independent variables: restorative material, restoration size and three other clinical factors, were tested using a Multiple Logistic Regression procedure to determine if any were predictive of failure. Of the 50 restorations, four failed by the 18-month recall, three failed due to fracture of the restoration and one due to secondary caries. Both restorative systems demonstrated a 92% success rate. No association between restoration size (p=0.99) or restorative material (p=0.65) and failure was found. Similarly, the additional variables, occlusal contact type, presence of occlusal wear facets and first or second molar, were not predictive of failure.

Original languageEnglish (US)
Pages (from-to)212-216
Number of pages5
JournalOperative dentistry
Issue number3
StatePublished - May 1 2007

ASJC Scopus subject areas

  • Dentistry(all)


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