In vitro biomechanics of lower molars with minimum Class II composite restorations

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    Abstract

    Lower molars with minimal mesial/distal occlusal (M/DO) and mesio-occlusal-distal (MOD) cavities were restored with a hybrid composite and subjected to eccentric loads on the cusps via steel spheres. The restored teeth fractured at lower loads than comparable sound teeth, and there was no difference in mean strength between the teeth with M/DO and MOD restorations. However, the MOD restorations exhibited a reduced variability in strength with all specimens requiring a load exceeding 2·5 kN to cause fracture. The deformation characteristics of the restored teeth were consistent with linear elastic behaviour. © 1986.
    Original languageEnglish
    Pages (from-to)130-134
    Number of pages4
    JournalJournal of Dentistry
    Volume14
    Issue number3
    Publication statusPublished - Jun 1986

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