有牙颌和无牙颌中的完全阻生牙。
Completely impacted teeth in dentate and edentulous jaws.
作者信息
Yamaoka M, Furusawa K, Fujimoto K, Uematsu T
机构信息
Oral and Maxillofacial Surgery Department II, Matsumoto Dental College, Japan.
出版信息
Aust Dent J. 1996 Jun;41(3):169-72. doi: 10.1111/j.1834-7819.1996.tb04849.x.
Panoramic radiographs from 1026 patients were examined for the presence of completely impacted teeth. The prevalence of completely impacted teeth in the edentulous jaw was lower than that in the dentate jaw in both the upper and lower jaws. The prevalence of completely impacted third molars in the edentulous jaw was also lower than that in the dentate jaw. However, there was no difference in the prevalence of completely impacted canine teeth and completely impacted anterior maxillary supernumerary teeth (mesiodens) in the edentulous jaw. These findings may indicate that completely impacted canine teeth and impacted anterior maxillary supernumerary teeth (mesiodens) are not influenced by the loss of erupted teeth.
对1026例患者的全景X线片进行检查，以确定是否存在完全阻生牙。在上颌和下颌中，无牙颌中完全阻生牙的患病率均低于有牙颌。无牙颌中完全阻生第三磨牙的患病率也低于有牙颌。然而，无牙颌中完全阻生尖牙和完全阻生前上颌额外牙（正中牙）的患病率没有差异。这些发现可能表明，完全阻生尖牙和阻生前上颌额外牙（正中牙）不受已萌出牙缺失的影响。
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