Do Dentinal Microcracks Really Exist? A Narrative Review of Experimental and Clinical Evidence

This scholarly monograph presents a comprehensive narrative review on dentinal microcracks—a long-debated phenomenon in endodontics. Historically thought to be iatrogenic in origin, dentinal microcracks have often been attributed to root canal instrumentation. However, emerging high-resolution imaging techniques, cadaveric models, and longitudinal studies challenge this assumption.

This book critically synthesizes research spanning from 2005 to 2024, categorizing evidence based on imaging modalities (micro-CT, nano-CT), instrumentation design, metallurgical advancements, and biological models. Through detailed analysis of over 40 studies, the review highlights the growing consensus that most observed microcracks are either pre-existing or artifactual, rather than clinically induced.

Intended for researchers, clinicians, and postgraduate students in conservative dentistry and endodontics, this book aims to recalibrate prevailing beliefs and advocate for evidence-based practice in endodontic care.