Pereira Igor Figueiredo, Santiago Fernando Zander Mucci, Sette-Dias Augusto Cesar, Noronha Vladimir Reimar Augusto de Souza
Universidade de Pernambuco, Faculdade de Odontologia (Recife/PE, Brasil).
Universidade Federal de Minas Gerais, Faculdade de Odontologia (Belo Horizonte/MG, Brasil).
Dental Press J Orthod. 2017 Jul-Aug;22(4):97-101. doi: 10.1590/2177-6709.22.4.097-101.oar.
: Treatments with dental surgery seek to displace tooth to the correct position within the dental arch.
: To report a clinical case that took advantage of an unerupted third molar.
: A male patient, 18 years of age, was referred by his dentist to evaluate the third molars. The clinical exam revealed no visible lower third molars. The computed tomography (CT) exam showed the presence of a supernumerary tooth in the region of the mandibular ramus, on the left side, and impaction of the third molar, which was causing root resorption on the second molar, thus making it impossible to remain in the buccal cavity. The preferred option, therefore, was to remove both second molar and the supernumerary tooth, in addition to attaching a device to the third molar during surgery for further traction.
: After 12 months, the third molar reached the proper position.
: When a mandibular second permanent molar shows an atypical root resorption, an impacted third molar can effectively substitute the tooth by using an appropriate orthodontic-surgical approach.
牙科手术治疗旨在将牙齿移动到牙弓内的正确位置。
报告一例利用未萌出的第三磨牙的临床病例。
一名18岁男性患者被其牙医转诊来评估第三磨牙。临床检查未发现可见的下颌第三磨牙。计算机断层扫描（CT）检查显示左侧下颌升支区域存在一颗多生牙，且第三磨牙阻生，导致第二磨牙牙根吸收，因此无法留在口腔内。所以，首选方案是拔除第二磨牙和多生牙，此外在手术过程中给第三磨牙附着一个装置以便进一步牵引。
12个月后，第三磨牙到达了合适的位置。
当下颌第二恒磨牙出现非典型牙根吸收时，通过适当的正畸 - 外科方法，阻生的第三磨牙可以有效地替代该牙齿。
