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在治疗牙冠大部分缺损的后磨牙时,恢复患牙的咬(牙合)接触,是使患牙行使咀嚼功能,发挥存留牙根牙冠生理功能的重要环节。笔者3年多来,利用锤造金属全冠恢复了31颗患牙的咬(牙合)接触,临床效果满意,现报告如下。本组治疗的31颗患牙均为第一磨牙,其中上颌第一磨牙15颗,下颌第一磨牙16颗。冠部缺损在1/4～3/4之间。患者年龄17～69岁,其中30岁以上占65％。男性12例,女性17例。患牙均无明显的牙周疾患。一、治疗方法 1.制取印模用烤软的技工蜡充填患牙缺损部位(亦可制备有一定固位力的洞型后用蜡充填),请患者做正中咬(牙合),用以取得患牙与对(牙合)牙的咬(牙合)接触关系。去除多余蜡后取印模,灌制石膏模型。
In the treatment of most of the tooth crowns after the restoration of the molar, the restoration of teeth bite (occlusal) contact, is to make the teeth exercise masticatory function, play a vital role in the survival of the dental crown of the physiological function. The author more than 3 years, the use of hammer made of metal crown restored 31 teeth bite (occlusal) contact, the clinical results are satisfactory, are as follows. The group treated 31 teeth are the first molar, including the maxillary first molar 15, the first molar mandibular 16. Coronal defect in 1/4 to 3/4 between. Patients aged 17 to 69 years, of which 65% over the age of 30. 12 males and 17 females. There is no obvious periodontal disease in the affected teeth. First, the treatment 1. Preparation of stamping baked soft mechanic wax filling defects in the affected area (can also be prepared after a certain retention of the hole filled with wax), the patient do the middle bite (occlusion), with In order to obtain the teeth and the occlusion (occlusion) teeth bite (occlusion) contact relationship. After removing the extra wax to take the impression mold, cast plaster model.