医疗质量是医院生存和发展的基础与前提，医疗安全为医院的发展保驾护航，一旦发生医疗纠纷，将直接影响医院的声誉。 近年来，医疗纠纷逐渐增多，并成为社会和媒体广泛关注的焦点。 因此，如何预防及正确处理医疗纠纷是医护人员应共同努力的方向，更是一大挑战。 本文对近四年来南方医科大学南方医院口腔医院牙周病科临床实习中发生的纠纷进行总结， 分析其产生的原因，并提出具体的防范措施。

The medical quality is the only alternative to live and develop for a hospital. The development of hospital was protected by the medical safety. If the medical tangles happened， the reputation and benefit of the hospital were damaged. The medical tangles， increasing in recent years，have become the focus of widespread concern. Therefore， doctors and nurses are making unremitting efforts to prevent and deal with medical tangles， which is a great challenge for both doctors and nurses.The paper summarized the medical tangles happened in the department of periodontics of Hospital of Stomatology of Nanfang Hospital during clinical practice in the past three years. Moreore， we analyzed the reasons， and put forward specific prevention measures of these medical tangles.