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The effectiveness of carbide fissure bur in cutting dentin with light, moderate and heavy work load | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 21, Issue 1, 2009, Pages 15-17 | ||
| Author | ||
| Angham G. AL-Hashimi | ||
| Abstract | ||
| ABSTRACTBackground: The dentist believes that pressing harder on the tooth enhances the cutting effectiveness of the burperformance. The aim of the study: was to evaluate the effectiveness of carbide fissure bur in cutting dentin withlight, moderate and heavy work load.Materials and Methods: The cutting of carbide bur under different work load was evaluated on dentin specimensmounted in acrylic blocks. Group I: Cutting performed with light work load (=25g), Group II: Cutting performed withmoderate work load (=100g), Group III: Cutting performed with heavy work load (=175g). Ten cuts were performedwith each work load and atotal of 30 cutting rates or CRs (mm/sec.) were recorded and were statistically analyzedusing analysis of variance (ANOVA) test, student t-test.Results: A significant difference (P< 0.5) appeared between CRs of group I and III, and between group II and III.Conclusion: The effectiveness of carbide fissure bur in cutting dentin markedly reduced with heavy work load.Keywords: Effectiveness, Carbide bur, Work load. J Bagh Coll Dentistry 2009; 21(1):15-17) | ||
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