Barac-Furtinović V, Skrinjarić I
Stomatoloski Fakultet Sveucilista u Zagrebu.
Acta Stomatol Croat. 1991;25(1):39-43.
Prevalence of double teeth in primary dentition of 0.5% was established in the sample of 2.987 preschool children of Zagreb. Between children with double teeth 60% were female and 40% males. Fusion ocurred in 66.7 percent and germination in 33.3 percent in the sample of children having double teeth. In all children with double teeth orthopantomograms were taken. Analysis of radiographs revealed anomalies of permanent successors in 53.3 percent of all children with double primary teeth. In children with germination in primary dentition anomalies of permanent teeth were present in 20 percent (hyperdontia in all cases), while fusion of deciduous teeth was accompanied by abnormal finding (hypodontia) in permanent dentition in 70 percent. Obtained results pointed out to the need of distinction between type of double teeth in primary dentition, i.e. between fusion and germination because chance of lacking the permanent successors is considerably dependent on the type of anomaly.
在萨格勒布的2987名学龄前儿童样本中，乳牙列中双排牙的患病率为0.5%。在患有双排牙的儿童中，60%为女性，40%为男性。在患有双排牙的儿童样本中，融合发生的比例为66.7%，萌出的比例为33.3%。对所有患有双排牙的儿童均拍摄了口腔全景片。X线片分析显示，在所有乳牙双排的儿童中，53.3%的恒牙胚存在异常。在乳牙列萌出的儿童中，20%的恒牙存在异常（均为多生牙），而乳牙融合的儿童中，70%的恒牙列存在异常表现（牙缺失）。所得结果表明，需要区分乳牙列中双排牙的类型，即融合和萌出，因为恒牙胚缺失的几率在很大程度上取决于异常类型。
