Department of Prosthodontics, Tabriz University of Medical Sciences, Tabriz, Iran.
J Prosthodont. 2012 Jan;21(1):56-64. doi: 10.1111/j.1532-849X.2011.00765.x. Epub 2011 Oct 7.
Severe tooth wear is frequently multifactorial and variable. Successful management is a subject of interest in dentistry. A critical aspect is to determine the occlusal vertical dimension (OVD) and a systematic approach that can lead to a predictable and favorable treatment prognosis. Management of patients with worn dentition is complex and difficult. Accurate clinical and radiographic examinations, a diagnostic wax-up, and determining OVD are crucial. Using mini-implants as orthodontic anchorage may facilitate orthodontic movement of teeth to improve their position, which is necessary for favorable prosthetic treatment. A 46-year-old man was referred for restoration of his worn and missing teeth. After diagnostic work-up, provisional removable prostheses were fabricated for both jaws, evaluated clinically, and adjusted according to esthetic, phonetic, and vertical dimension criteria. Clinical crown lengthening and free gingival graft procedures were performed in appropriate areas. Drifting of the left posterior mandibular teeth was corrected using mini-implants as orthodontic anchorage. Two conventional implants were inserted in the right mandibular edentulous area. After endodontic therapy of worn teeth, custom-cast gold dowels and cores were fabricated, and provisional removable prostheses were replaced with fixed provisional restorations. Metal-ceramic restorations were fabricated, and a removable partial denture with attachments was fabricated for maxillary edentulous areas. An occlusal splint was used to protect the restorations. Full-mouth rehabilitation of the patient with severely worn dentition and an uneven occlusal plane was found to be successful after 3 years of follow-up. This result can encourage clinicians to seek accurate diagnosis and treatment planning to treat such patients.
重度牙齿磨损通常是多因素和多变的。成功的管理是牙科关注的课题。一个关键方面是确定正中颌位垂直距离(OVD),并采用一种可以带来可预测和有利治疗预后的系统方法。对磨损牙列的患者进行管理是复杂和困难的。准确的临床和影像学检查、诊断性蜡型以及确定 OVD 至关重要。使用微型种植体作为正畸支抗可能有助于牙齿的正畸移动,以改善其位置,这对于有利的修复治疗是必要的。一位 46 岁的男性因磨损和缺失的牙齿修复而被转介。经过诊断性检查,制作了上下颌的临时可摘义齿,根据美观、语音和垂直距离标准进行临床评估和调整。在适当的区域进行临床牙冠延长术和游离龈移植术。使用微型种植体作为正畸支抗纠正左侧下颌后牙漂移。在右侧下颌无牙区植入两颗常规种植体。在磨损牙齿进行根管治疗后,定制铸造金桩核,并更换临时可摘义齿为固定临时修复体。制作金属烤瓷修复体,并为上颌无牙区制作带附着体的可摘局部义齿。使用咬合板保护修复体。经过 3 年的随访,对严重磨损牙列和非均匀咬合平面的患者进行了全口修复,结果被认为是成功的。这一结果可以鼓励临床医生寻求准确的诊断和治疗计划来治疗此类患者。