Lindauer Steven J, Laskin Daniel M, Tüfekçi Eser, Taylor Russell S, Cushing Bryce J, Best Al M
Department of Orthodontics, School of Dentistry, Virginia Commonwealth University, Richmond, Va 23298-0566, USA.
Am J Orthod Dentofacial Orthop. 2007 Jul;132(1):43-8. doi: 10.1016/j.ajodo.2005.07.026.
Despite a substantial body of literature refuting an association between third molar eruption and crowding of the anterior dentition, the issue continues to be controversial.
A survey was developed to evaluate and compare the current opinions of orthodontists (n = 393) and oral and maxillofacial surgeons (n = 458) regarding the link between third molars and the development of anterior crowding.
A smaller percentage of orthodontists than surgeons believed that maxillary (P <.0001) and mandibular (P <.0001) third molars produce anterior forces during eruption. Similarly, orthodontists were less likely to think that maxillary (P <.0001) and mandibular (P <.0001) third molars cause anterior crowding and were therefore less likely to recommend prophylactic removal of maxillary (P <.0001) and mandibular (P <.0001) third molars to prevent crowding. Surgeons were more likely to "generally" or "sometimes" (56.9%) recommend prophylactic removal of mandibular third molars to prevent crowding, whereas orthodontists more often said that they "rarely" or "never" (64.4%) recommend it. Differences in orthodontists' and oral and maxillofacial surgeons' beliefs about the association between third molar eruption and the development of crowding were significantly related to graduation year. More recently graduated orthodontists were less likely to recommend prophylactic removal of third molars to prevent crowding, and surgeons were more likely to recommend removal if they graduated in the 1970s or 1980s.
Significant disagreement exists among practitioners, including both orthodontists and oral and maxillofacial surgeons, regarding the fundamental issues underlying the role of third molars in dental crowding.
尽管有大量文献驳斥第三磨牙萌出与前牙列拥挤之间的关联，但该问题仍存在争议。
开展了一项调查，以评估和比较正畸医生（n = 393）和口腔颌面外科医生（n = 458）目前对于第三磨牙与前牙拥挤发展之间联系的看法。
认为上颌（P <.0001）和下颌（P <.0001）第三磨牙在萌出过程中产生向前力量的正畸医生比例低于外科医生。同样，正畸医生不太可能认为上颌（P <.0001）和下颌（P <.0001）第三磨牙会导致前牙拥挤，因此也不太可能建议预防性拔除上颌（P <.0001）和下颌（P <.0001）第三磨牙以预防拥挤。外科医生更有可能“通常”或“有时”（56.9%）建议预防性拔除下颌第三磨牙以预防拥挤，而正畸医生更常表示他们“很少”或“从不”（64.4%）建议这样做。正畸医生和口腔颌面外科医生对于第三磨牙萌出与拥挤发展之间关联的看法差异与毕业年份显著相关。较近期毕业的正畸医生不太可能建议预防性拔除第三磨牙以预防拥挤，而如果外科医生是在20世纪70年代或80年代毕业，则更有可能建议拔除。
包括正畸医生和口腔颌面外科医生在内的从业者对于第三磨牙在牙列拥挤中作用的基本问题存在重大分歧。
