The advent of dentin adhesive technology in endodontics has made monoblock a well known concept in endodontics. However it has created many controversies on whether monoblock would reinforce the roots and provide a superior coronal seal.In this review, attempts have been made to understand monoblock in a broader aspect and understand how the monoblock concept can be applied to the materials used till date which rehabilitates the root canal space. The potential of currently available bondable materials to achieve mechanically homogeneous units with root dentin is then discussed in relation to the classical concept in which the term monoblock was first employed in restorative dentistry and subsequently in endodontics.
Aims: This is an vitro study compares and evaluates the effect of magnification tools on frequency and extent of iatrogenic damage to approximal tooth surface during conservative Class II cavity preparations. Methods and Material: 30 Typodont teeth were divided into 3 groups 10 typodont teeth in each group and were mounted on Phantom head. Teeth were prepared for class II (MO) cavity on 36 with conservative design using airotor with naked eye, loupes and microscope and iatrogenic damage was assessed on tooth no 35. Assessment of iatrogenic damage of all the groups was done by profilometer test. Statistical analysis used:Statistical analysis was done using one-way analysis of variance (ANOVA). Post-hoc pair-wise comparisons were done using Dunnetts test. Results: Results revealed that tooth preparation was better under microscopes and loupes with statistical significant difference for samples with loupes and microscope on comparison with naked eye. Study also expressed the difficulty faced during tooth preparation with microscope and loupes for the first time. Conclusions: Magnifying tools helps in better vision and less iatrogenic damage while preparing the tooth for restoration.
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