后磨牙纵裂在口腔科诊疗中较为常见。由于它同时损伤了牙髓组织和牙周组织，过去认为应予以拔除处理。随着口腔诊疗技术的发展，许多学者的研究表明，只要及时对患牙进行合理的治疗和修复，大多数患牙仍能保留于口腔内，并发挥正常的咀嚼功能［１～３］。要保证纵裂后牙治... Longitudinal cleavage in post-dentition treatment is more common in dentistry. As it damaged both pulp and periodontal tissue, it was thought to be removed in the past. With the development of oral medical technology, many scholars have shown that most teeth can remain in the oral cavity and exert their normal masticatory functions as long as the teeth are properly treated and repaired promptly [1-3]. To ensure that the longitudinal ...