Ascanoa Olazo Jimmy Antonio, Arellanos-Tafur Miriam, Rojas-Arquinego Felix
School of Stomatology, Universidad Senor de Sipan, Chiclayo, Peru.
School of Dentistry, Universidad Catolica Santo Toribio de Mogrovejo, Chiclayo, Peru.
Case Rep Dent. 2025 Mar 25;2025:8886597. doi: 10.1155/crid/8886597. eCollection 2025.
An impacted tooth is one that has not reached the occlusal plane due to a mechanical obstruction, which may include an adjacent tooth, a supernumerary tooth, or an odontoma. Lower third molars are the most frequently impacted teeth, whereas second molars are impacted less often. Currently, diagnostic imaging, such as tomography, is crucial for determining the treatment plan. For the extraction of impacted teeth, a vestibular approach is generally recommended, and for molars, odontectomy prior to tooth luxation and avulsion is advised. This study was aimed at describing the surgical technique for the flap extraction of an impacted lower second molar in a transverse position with the crown oriented towards the lingual side. A 17-year-old male patient presented with pain in the lower left molar region. Clinical examination revealed the absence of Teeth 37 and 38. Tomographic imaging showed Tooth 37 in a transverse position with the crown oriented lingually and Tooth 38 in a vertical position. Extraction of Tooth 37 was performed using a vestibular approach and odontectomy due to space constraints. Retention of permanent second molars is rarely reported in the literature. It is advisable to apply all possible methods to position these teeth in the occlusal plane to ensure proper masticatory function. However, there are cases where extraction is necessary due to space limitations, and alternative solutions for replacing the lost tooth should be explored.
阻生牙是指由于机械性阻碍而未萌出至咬合平面的牙齿，这种阻碍可能包括相邻牙齿、多生牙或牙瘤。下颌第三磨牙是最常发生阻生的牙齿，而第二磨牙阻生的情况较少见。目前，断层扫描等诊断性影像学检查对于确定治疗方案至关重要。对于阻生牙的拔除，一般建议采用前庭入路，对于磨牙，建议在牙齿脱位和拔除前进行牙切除术。本研究旨在描述一种手术技术，用于拔除横向位置、牙冠朝向舌侧的下颌阻生第二磨牙。一名17岁男性患者因左下磨牙区疼痛前来就诊。临床检查发现37号和38号牙缺失。断层扫描显示37号牙呈横向位置，牙冠向舌侧，38号牙呈垂直位置。由于空间限制，采用前庭入路和牙切除术拔除了37号牙。文献中很少报道保留恒牙第二磨牙的情况。建议采用一切可能的方法将这些牙齿置于咬合平面，以确保正常的咀嚼功能。然而，在某些情况下，由于空间限制，拔除牙齿是必要的，应探索替代解决方案来替代缺失的牙齿。
