磨牙的现象在口腔医学里称为磨牙症，顾名思义，它是指睡眠时会习惯性地磨牙，甚至在白天也有无意识磨牙的习惯。

The phenomenon of molar in oral medicine in disease called grind one's teeth,Just as its name implies,It is to point to sleep, habitually grind one's teeth,Even in the daytime also have unconscious gnashing of teeth.

　　绝大多数情况下，磨牙的发生都同时伴随“唤醒反应”(睡眠深度突然改变，睡眠者可能突然醒来或者睡眠深度变浅，同时可能伴随肢体运动、心律呼吸增快等生理变化)，因此夜间磨牙症也被认为是唤醒反应的一部分。

The vast majority of cases,Grind one's teeth happens with at the same time"Awaken reaction"(Sleep depth suddenly change,Sleeper may suddenly wake or sleep depth shallow,At the same time may be associated with physical movement/Rhythm of the heart is added fast breathing and physiological changes),So the night molar disease was also thought to be wake up part of the response.

　　对成人而言，心理、精神因素对神经系统的影响常被认为是导致磨牙的主要原因。多因素分析研究显示，生活压力过大是磨牙症的显著危险因素。因此，有较多心理问题，容易发生抑郁、应激障碍的人，更有可能成为磨牙症患者。

For adults,psychological/Mental factors on the influence of the nervous system is often considered to be the main cause of lead to grind one's teeth.Multiple factors analysis showed that the,Life stress is a significant risk factor for disease of molar.so,Have more mental problems,Prone to depression/Stress disorder people,More likely to become molar disease patients.

　　除了心理因素，咬合不正、咬合干扰以及一些全身性疾病(如过敏、内分泌紊乱、营养不良，以及消化系统疾病等)都被认为可能导致磨牙症的发生。不过到目前为止，这些研究都难以得出肯定性的结论，导致磨牙的原因仍众说纷纭。

In addition to psychological factors,malocclusion/Occlusal interference and some systemic diseases(Such as allergies/Endocrine disorder/malnutrition,And the digestive system diseases, etc)Are considered may lead to the occurrence of disease of molar.But so far,These studies are difficult to draw the conclusion of the affirmative,Cause the cause of the molar still opinions vary.

　　虽说原因至今还不能确定，但磨牙的确会对健康带来不良影响。磨牙可能引起牙齿的磨损、畸形甚至断裂。除了牙齿本身的问题，磨牙还可能导致颞下颌关节紊乱病(主要症状包括开闭口运动异常、弹响，关节周围疼痛，头颈痛等)、耳部等不适或牵涉疼痛；还可能对患者本身及伴侣的精神状态造成影响。

Although reason still not sure,But grind one's teeth can really bring bad effect to health.Grind one's teeth may cause tooth wear/Deformity and even rupture.In addition to the teeth itself,Grind one's teeth can also cause temporomandibular disorders(The main symptoms include open closed abnormal movements/Elastic ring,Joint pain around,Head and neck pain, etc)/Ear and discomfort or pain involved;Also possible, of the patient itself and partner's mental state affect.

　　针对磨牙症的治疗主要目的在于缓解疼痛，减少口腔破坏，预防磨牙发生。如果磨牙症状较轻，应该注意避免生活中的压力因素，调整生活方式给自己减压；如果症状进一步持续且无好转时，应当及时寻求专业医疗帮助，心理咨询、口腔咬合干预、药物辅助等多种手段都能够取得较好的疗效。（吴舟桥）

According to grind one's teeth disease treatment main purpose is to alleviate pain,Reduce oral damage,Prevent grind one's teeth happen.If molar symptom is lighter,Should pay attention to avoid the stress in your life factors,Lifestyle changes to relieve the pressure;If symptoms continue further without much better,It shall timely seek professional medical help,Psychological counseling/Oral bite intervention/Medical assistance and so on the many kinds of methods can obtain good effect.(Wu pontoon bridge)