Root canal morphology of hypomineralised first permanent molars using micro-CT

Aim To investigate the root canal morphology of hypomineralised first permanent molars (FPMs) using micro-CT (μCT). Methodology Twenty-four hypomineralised FPMs and five clinically sound FPMs were scanned using μCT and assessed using the following parameters: (i) root canal configuration, (ii) connecting canal frequency, (iii) enamel, dentin, and pulp volumes, (iv) cusp tip to pulp horn distance, root canal length, root canal width, and dentin thickness, and (v) the influence of the root canal system landmarks on access cavity outline forms and canal curvature. A two-way repeated-measures analysis of variance was employed with the statistical significance set at p