Pereira Eliana de Souza Bastos Mazuqueli, Accetturi Fernando, Eleutério Rachel Gomes, Buchaim Daniela Vieira, Buchaim Rogério Leone, Clemente-Napimoga Juliana Trindade
School of Dentistry, University of Marília (UNIMAR), Marília 17525-902, Brazil.
Private Dental Clinic, Fernando Accetturi Implants and Aesthetic Dentistry, Marília 17525-170, Brazil.
Case Rep Dent. 2019 Jun 23;2019:6936573. doi: 10.1155/2019/6936573. eCollection 2019.
The dental crown can be restored using the root in clinical situations where the dental remnant allows adequate anchorage by the use of an intraradicular retainer. After endodontic treatment, reconstruction of the dental anatomy depends on correct planning and the type of restoration to be used. This requires reestablishment of form and function with creation of anchoring features, avoiding detachment and favoring the distribution of forces, thus preventing fracture of the remnant due to functional and parafunctional forces applied on the tooth. This paper reports the clinical case of a patient who sought dental care for a full metal-ceramic crown with a cast metallic core with reduced length that had been detached from tooth 24. After clinical and radiographic examination, root integrity was verified. The patient was offered reconstruction with a cast metallic core of satisfactory length, providing adequate retention and support, with reutilization of the original prosthetic crown, serving as a reverse template of the coronal portion of this new core, providing reduction in costs and operational time.
在临床情况下，当牙体残端能够通过使用根管内固位体提供足够的锚固力时，可利用牙根来修复牙冠。根管治疗后，牙齿解剖结构的重建取决于正确的规划和所使用的修复类型。这需要通过创建锚固特征来重建形态和功能，避免分离并有利于力的分布，从而防止由于作用于牙齿上的功能和副功能力导致残端骨折。本文报告了一例患者的临床病例，该患者因全金属烤瓷冠（带铸造金属核，长度缩短）从24号牙脱落前来寻求牙科治疗。经过临床和影像学检查，证实牙根完整。为患者提供了具有满意长度的铸造金属核进行重建，提供足够的固位和支持，并重新利用原来的修复冠，作为这个新核冠部的反向模板，从而降低成本和手术时间。
