Bilgin Mehmet Selim, Erdem Ali, Tanrıver Mehmet
J Clin Pediatr Dent. 2016;40(4):264-8. doi: 10.17796/1053-4628-40.4.264.
The aim of this case report is to describe the treatment of a primary molar with a deep carious lesion by pulpotomy and placement of a ceramic endocrown.
A 7-year-old male patient with profound caries in tooth number 85 was referred to our clinic and underwent a pulpotomy. As the final treatment in tooth restoration, placement of an endocrown was planned, because little more than half of the tooth structure remained. After an additional request from the patient's parents for an advanced and prompt restoration, a computer-aided design/computer-aided manufacturing (CAD/CAM) polymer-infiltrated ceramic network (PICN) block was chosen. A three-dimensional model of the arch was obtained after scanning the dental cast, and the endocrown was designed digitally according to the model. When the design was complete, the endocrown was fabricated with a milling machine. Finally, the endocrown was cemented with self-adhesive resin cement.
Over the 9-month follow-up period, no pulpal or periradicular pathology was observed on radiographs. Regarding the crown, the marginal fit was excellent, the anatomical form was protected, and no discoloration occurred.
During follow-up, the CAD/CAM PICN block endocrown proved to be a good material for the short- to long-term treatment of a primary tooth. However, more clinical cases and follow-up are required to investigate the long-term effects of antagonistic tooth wear.
本病例报告旨在描述对一颗患有深龋病变的乳磨牙进行牙髓切断术并放置陶瓷内冠的治疗过程。
一名7岁男性患者，85号牙患有严重龋齿，被转诊至我们的诊所并接受了牙髓切断术。由于剩余的牙体组织不到一半，因此计划在牙齿修复的最终治疗中放置内冠。应患者家长进一步提出的先进且快速修复的要求，选择了计算机辅助设计/计算机辅助制造（CAD/CAM）聚合物渗透陶瓷网络（PICN）块。在对牙模进行扫描后获得牙弓的三维模型，并根据该模型对内冠进行数字化设计。设计完成后，用铣床制作内冠。最后，用自粘树脂水门汀粘固内冠。
在9个月的随访期内，X线片未观察到牙髓或根尖周病变。关于牙冠，边缘适合性极佳，解剖形态得以保留，且未出现变色。
在随访期间，CAD/CAM PICN块内冠被证明是用于乳牙短期至长期治疗的良好材料。然而，需要更多的临床病例和随访来研究对颌牙磨损的长期影响。
