A selection of abstracts of clinically relevant papers from other journals. The abstracts on this page have been chosen and edited by John R. Radford.
Abstract
After simulated use, the removal forces of cobalt chrome T-clasps against resin composite recontoured abutments were significantly reduced compared with those against natural enamel.
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Zarrati S, Sadighpour L et al. J Prosthet Dent 2010; 103: 240–244
The aim of this study was to compare the retentive capacity of cobalt chrome T-clasps against 1) 0.25Â mm resin composite undercuts, or 2) 0.25Â mm natural enamel undercuts, after repeated placement and removal of this retentive component. This cycle was carried out 4,500 times in order 'to simulate a 4-year service period'. It was reported that 'retention loss was 3 times greater in the composite resin-recontoured abutments than in natural teeth (53.65% and 15.80%) relative to the initial values'. The authors did not speculate if the remaining retentive capacities were such that they would resist dislodgement of the denture in clinical use.
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Comparison of clasp retention on enamel and composite resin-recontoured abutments following repeated removal in vitro. Br Dent J 210, 31 (2011). https://doi.org/10.1038/sj.bdj.2010.1203
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DOI: https://doi.org/10.1038/sj.bdj.2010.1203
