This study investigated the effects of neck posture and working duration during each step of root canal treatment (i.e. opening the canal [OC], length determination, mechanical instrumentation, try main cone, and filling the root canal) on neck discomfort (ND) in dentists with <5-years' endodontic experience.

中文翻译：

---

根管治疗期间不良的颈部姿势和较长的工作时间与牙髓病经验<5年的牙医颈部不适增加相关

本研究调查了根管治疗每个步骤（即打开根管 [OC]、长度确定、机械器械、尝试主锥和填充根管）期间颈部姿势和工作持续时间对颈部不适 (ND) 的影响。具有<5年牙髓治疗经验的牙医。