[Diversity of root canal morphology in mandibular first premolars and its clinical strategies].

It is a basic prerequisite for the successful completion of endodontic treatment to thoroughly understand the root canal space anatomy. With the development of dental devices in dentistry, the root canal morphology of the mandibular first premolars can be presented in more detail. Before conducting root canal therapy on the mandibular first premolar with complex root canal morphology, it should be necessary to evaluate the potential difficulties and risks for making an appropriate treatment plan. The present paper reviews the research progress on the diversities of root canal morphology in mandibular first premolars in recent years, and then makes technologic recommendations based on the morphology diversities.随着临床诊疗设备的发展，在临床上更多的根管细微结构得以呈现，对下颌第一前磨牙根管形态多样性的认识也更加深入，这有助于术前准确判断患牙的根管形态并评估可能存在的困难和风险，根据患牙的情况制订适合的治疗方案，有助于提高治疗的成功率。本文回顾国内外近年来对下颌第一前磨牙根管形态的相关研究，重点介绍下颌第一前磨牙根管形态的多样性及其与临床密切相关的解剖特点，并提出相关的临床诊疗策略，以期为临床医师提供参考。.