J Clin Pediatr Dent. 2021 Jan 1;45(1):8-11. doi: 10.17796/1053-4625-45.1.2.
The presence of carious lesions in children associated with developmental defects of enamel is frequently observed. Restoring these affected teeth can be a challenge for the clinician. Teeth with enamel defects may have poor or limited resin adhesion and some may require repeated restoration. Prefabricated zirconia permanent molar crowns were recently introduced as an option for restoring severely decayed and broken down young permanent molars. These new restorations offer an efficient, esthetic, and economic option to restore severely broken down carious permanent molars that may be associated with enamel defects in partially or fully erupted molars. A clinical case of a 13-year-old female patient is presented. She had a mandibular second permanent molar that demonstrated significant caries and loss of much of the clinical crown, which was treated with a vital pulpotomy and restored with a prefabricated zirconia crown.
在儿童中,常观察到与牙釉质发育缺陷相关的龋损。修复这些受影响的牙齿对临床医生来说是一个挑战。牙釉质缺陷的牙齿可能具有较差或有限的树脂粘结性,有些可能需要多次修复。预制氧化锆永久磨牙冠最近被引入作为修复严重龋坏和崩解的年轻永久磨牙的一种选择。这些新的修复体为修复严重崩解的龋坏永久磨牙提供了一种有效的、美观的、经济的选择,这些磨牙可能与部分或完全萌出的磨牙中的牙釉质缺陷有关。介绍了一位 13 岁女性患者的临床病例。她的下颌第二恒磨牙有明显的龋坏,大部分临床冠都缺失了,经过活髓切断术治疗,并用预制氧化锆冠修复。