牙隐裂,又称为不全牙裂,是一种较难诊断的牙体疾患。1954年以来,国内外陆续有不少临床观察报道和研究。对该病的临床表现、病因、诊断和治疗等方面都有了更进一步的认识。一、临床表现 1.年龄:绝大多数在30—35岁以上。 2.性别:男女无显著差别。只有Cameron的报告中,女性为男性的2倍。原因尚不能确定。他提出男性的颔骨上的肌肉更发达和多呈短方形脸型。 3.牙位:绝大部分发生在磨牙,少数在前磨牙。Hassan等通过测定釉质的抗裂 Tooth crack, also known as incomplete fracture, is a more difficult to diagnose dental disorders. Since 1954, there are quite a few clinical reports and studies at home and abroad. The clinical manifestations of the disease, etiology, diagnosis and treatment have a more understanding. First, the clinical manifestations 1. Age: The vast majority of 30-35 years old. 2. Gender: No significant difference between men and women. In Cameron's report, women were twice as likely as men. The reason is not sure yet. He proposed that the muscles on the stapes of men are more developed and have short square faces. 3. Teeth position: Mostly occur in molars, a small number of premolar. Hassan and others passed the test for enamel cracking