上颌第二磨牙根管形态：Maxillary Second Premolar
canal divides into two parts, which cither remain separate (type V) or merge (type II) before reaching the apex." The root length of the maxillary second molar is much like that of the first premolar; and apical curvature is not uncommon, particularly with large sinus cavities. After endodontic treatment, full occlusal coverage is mandatory to ensure against vertical cuspal or crown-root fracture (Burns RC, Buchanan LS. Tooth Morphology and Access Openings. Part One: The Art of Endodontics in Pathway of Pulp, 6th Ed. p. 144).
本文相关关键词:根管形态 根管治疗
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