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
Potential damage to the dental pulp.
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Davis GR, Tayeb RA et al. J Dent 2012; 40: 571–576
This study used X-ray microtomography, a miniaturised form of CT, to map dentine before and after crown preparation, in 16 extracted intact incisor teeth. A single operator endeavoured to cut metal ceramic crown preparations of common design characteristics and dimensions (2 mm reduction incisally, 1.2 mm labially and a 0.5 mm chamfer finish line palatally and proximally). Although 'factors that affect the pulp size and condition such as age and pre-existing chronic inflammation could not be taken into consideration', the investigators assert the labial proximal line angles were consistently over-prepared 'with a tendency to leave considerably less than 2 mm residual dentine protecting the pulp'. It was not discussed as to whether or not pulpal death is as a consequence of residual thickness of dentine or microbial leakage.
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Quantification of residual dentine thickness following crown preparation. Br Dent J 213, 457 (2012). https://doi.org/10.1038/sj.bdj.2012.1012
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DOI: https://doi.org/10.1038/sj.bdj.2012.1012