上颌第四磨牙与第三磨牙融合１例湖南长岭炼油化工厂职工医院口腔科李发荣患者男性，４７岁。因右上后牙肿痛４天于１９９１年８月１０日初诊。专科检查：右面颊部稍肿胀，轻度压痛，无波动感，表面皮肤无红热，张口无明显受限；日内情况：均萌出，未发现龋齿，７无松动，... One case of maxillary fourth molars fused with the third molars Hunan Changling Refining and Chemical Plant Workers Hospital Stomatology Li Hairong Male, 47 years old. Due to the right upper back tooth sore 4 days in August 10, 1991 newly diagnosed. Specialist examination: the right cheek Ministry slightly swollen, mild tenderness, no fluctuations in the sense of the surface of the skin red-hot, no obvious limitation of the mouth; days conditions: are eruption, no dental caries, 7 no loosening, ...