Analysis of fracture patterns revealed that unrestorable fractures predominated over restorable fractures in the traditional, contracted, and truss access cavity groups, although this difference did not reach statistical significance ( p = 0.098).
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Influence of access cavity design on the structural integrity of endodontically treated permanent mandibular 1<sup>st</sup> molar teeth: a quasi-experimental study.
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0.0980
0.0980