Resistance to fracture of teeth with various preparations for amalgam

Journal of Dentistry
G A CaronJ C Broome

Abstract

Advances in dental instrumentation and materials have allowed for increasingly conservative preparations when treating teeth for dental caries. Research has shown that some materials, properly used, can restore teeth to their pre-prepared strength. At the present time, the longevity of these materials is unknown, requiring clinicians to remain committed to conservative methods of tooth preparation. The purpose of this study is to compare the resistance to fracture of teeth prepared with occlusal, mesio-occlusal-distal (MOD) and mesial/distal slot preparations against unprepared control teeth. Thirty-two non-carious, non-restored human maxillary premolar teeth were divided into three experimental groups and a control group with eight teeth in each. After preparation, the teeth were loaded to fracture on an Instron Universal Testing Machine, and the results were compared using an Analysis of Variance (ANOVA) followed by Tukey's Studentized Range Test (P < 0.05). Fracture patterns were compared by chi-square analysis at the 0.1 level of probability. There was no significant difference in fracture resistance among the experimental groups, but all were less resistant to fracture than the unprepared control group. The MOD and occlusa...Continue Reading

References

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Citations

Mar 11, 2008·European Archives of Paediatric Dentistry : Official Journal of the European Academy of Paediatric Dentistry·F Mazhari, M Gharaghahi
Apr 15, 2014·The Journal of Prosthetic Dentistry·Jennifer S WayneCharles Janus
Dec 9, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Michal StaninecDaniel Fried
Mar 6, 2004·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·David J ClarkJacinthe M Paquette
Jun 4, 2015·European Journal of Dentistry·John S Mamoun, Donato Napoletano
Aug 2, 2008·Engineering Fracture Mechanics·Yaou WangStanislav I Rokhlin
Mar 16, 2006·Operative Dentistry·Santiago González-LópezManuel Bravo
Dec 18, 2015·Brazilian Oral Research·Lucas Zago NavesCarlos José Soares
Jul 20, 2002·Pesquisa odontológica brasileira = Brazilian oral research·André Marcelo Peruchi MintoLuis Henrique de Camargo Thome
Aug 11, 2006·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·J W Nicholson, B Czarnecka
Jun 29, 1999·The Journal of Prosthetic Dentistry·D A CoveyS Koka

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