Papalexopoulos Dimokritos, Partalis Christos, Lampropoulos Panagiotis, Artopoulou Ioli-Ioanna, Sykaras Nikitas
Department of Prosthodontics School of Dentistry National and Kapodistrian University of Athens, Zografou, Greece.
Case Rep Dent. 2024 Jun 19;2024:2818034. doi: 10.1155/2024/2818034. eCollection 2024.
Bone resorption following tooth loss might compromise retention, stability, and support of conventional removable prostheses, and for this reason, implant-supported overdentures are suggested as a viable alternative for completely edentulous patients. Bars, telescopic attachments, or stud attachments have been used to provide retention through a different mechanism of action based on specific design characteristics. The purpose of this report is to thoroughly describe the applied protocol for the fabrication of an implant overdenture supported by two bars incorporating stud attachments. A 67-year-old male patient presented to the Postgraduate Clinic of the National and Kapodistrian University in Athens seeking dental rehabilitation. The remaining teeth were characterized with poor prognosis, mainly due to their periodontal status. The proposed treatment plan included the placement of four implants in the maxilla and two implants in the mandible and the fabrication of implant-supported overdentures. The diagnostic stages revealed adequate prosthetic space that would enable the fabrication of a bar substructure for the maxillary overdenture. To combine the benefits of bars and stud attachments, two bars with four attachments were fabricated. Evaluation of the delivered prosthesis revealed adequate retention, support, and stability achieved with minimal palatal coverage. Patient's reported satisfaction and quality of life were increased. Recall appointments at one, six, and twelve months did not reveal any adverse effects or patient's complaints. According to the present case report, different types of attachments may be used after careful study of each case. More studies are needed to report on different aspects of the chosen treatment plan.
牙齿缺失后的骨吸收可能会损害传统可摘义齿的固位、稳定性和支持，因此，对于全口无牙患者，种植支持式覆盖义齿被认为是一种可行的替代方案。杆、套筒冠附着体或球帽附着体已被用于通过基于特定设计特征的不同作用机制来提供固位。本报告的目的是全面描述一种由带有球帽附着体的两根杆支持的种植覆盖义齿的制作应用方案。一名67岁男性患者到雅典国立与卡波迪斯特里亚大学研究生诊所寻求牙齿修复。剩余牙齿预后较差，主要是由于其牙周状况。拟议的治疗计划包括在上颌植入4颗种植体，在下颌植入2颗种植体，并制作种植支持式覆盖义齿。诊断阶段显示有足够的修复空间，能够制作上颌覆盖义齿的杆状下部结构。为了结合杆和球帽附着体的优点，制作了带有4个附着体的两根杆。对交付的义齿进行评估发现，在腭部覆盖最小的情况下实现了足够的固位、支持和稳定性。患者报告的满意度和生活质量有所提高。在1个月、6个月和12个月的复诊预约中未发现任何不良反应或患者投诉。根据本病例报告，在对每个病例进行仔细研究后，可以使用不同类型的附着体。需要更多的研究来报告所选治疗计划的不同方面。
