A Retrospective Study on Long-Term Technical Complications of Metal-Ceramic Crowns With a Supplementary Questionnaire Survey
试验速览
- 阶段
- 不适用
- 状态
- Enrolling By Invitation
- 入组人数
- 79
- 试验地点
- 1
- 主要终点
- Technical complications of metal-ceramic single crown
研究概览
简要总结
This observational study aims to evaluate the long-term clinical outcomes and biological complications associated with metal-ceramic crowns. Patient dental records will be reviewed to identify eligible participants, who will subsequently be invited for a clinical examination. The clinical condition of the metal-ceramic crowns and the supporting teeth and periodontal tissues will be assessed using predefined clinical criteria. The study aims to provide information on the long-term clinical performance of metal-ceramic crowns and the occurrence of associated biological complications. Participants will also compleate a questionaire assessing oral health-related habits and satisfaction with metal ceramic crown.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 20 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •adult patients with at least one metal-ceramic single crown meeting the predefined study criteria.
- •ability and willingness to participate in the clinical examination and complete the questionnaire
排除标准
- •teeth serving as abutments for fixed partial prostheses (FPPs)
- •teeth as abutments for removable partial dentures (RPDs)
研究组 & 干预措施
Patients with single Metal-Ceramic crown
Patients who received metal- ceramic single crown and are evaluated for the clinical condition of the restoration and gingival tissues. Patients were asked to complete a modified questionnaire in Latvian organizing the information into the following sections: oral hygiene habits (4 questions), disadvantages/ encumbrances with the crown (3 questions) and satisfaction (1 question) using Likert-style scale.
干预措施: Metal-Ceramic dental single crown (Device)
结局指标
主要结局
Technical complications of metal-ceramic single crown
时间窗: Clinical examination in 2026
The assessed clinical parameters, based on the modified USPHS criteria, included veneer chipping, wear of the occlusal surface, anatomical form/contour, marginal adaptation, color match, and secondary caries (see Table 1), with the worst recorded score being documented.
次要结局
- Biological complications of metal-ceramic single crowns(Clinical examination in 2026)
- Questionnaire on hygiene habits and satisfaction(Prior clinical examination in 2026)
研究者
Elīna Bluma
Assistant
Riga Stradins University