Kavadia S, Antoniades K, Kaklamanos E, Antoniades V, Markovitsi E, Zafiriadis L
Department of Orthodontics, Dental School, Aristotle University of Thessaloniki, Greece.
J Dent Child (Chic). 2003 Jan-Apr;70(1):29-32.
PURPOSE: General consensus has been reached on extracting mandibular third molars when they are involved in pathologic processes. However, early extraction is advisable in cases of eruption disturbances of the mandibular second molar, before or during orthodontic treatment. METHODS: Thirty-two patients with early extraction of the mandibular third molar before or during orthodontic treatment were examined. RESULTS: In these cases either the presence of the third molar presented an obstacle in the eruption path of the second, or third molar germ removal was considered beneficial to the course of orthodontic treatment. CONCLUSIONS: Early extraction of the mandibular third molar facilitates the eruption of the second molar, especially in cases where evidence of crowding and lack of space in the posterior mandibular region exist. Orthodontic treatment may, in some cases, aggravate eruption disturbances of the second molar.
目的：当下颌第三磨牙参与病理过程时，对于拔除下颌第三磨牙已达成普遍共识。然而，对于下颌第二磨牙萌出障碍的病例，在正畸治疗前或治疗期间尽早拔除是可取的。 方法：对32例在正畸治疗前或治疗期间早期拔除下颌第三磨牙的患者进行了检查。 结果：在这些病例中，要么第三磨牙的存在对第二磨牙的萌出路径造成了阻碍，要么认为拔除第三磨牙牙胚对正畸治疗进程有益。 结论：早期拔除下颌第三磨牙有助于第二磨牙的萌出，尤其是在下颌后部区域存在拥挤和空间不足迹象的情况下。在某些情况下，正畸治疗可能会加重第二磨牙的萌出障碍。
J Dent Child (Chic). 2003
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