Aesthetic Outcomes of Single Tooth Implant-supported Restorations Using Metal Ceramic Restorations With Either Zirconia or Titanium Abutments: A Randomized Controlled Clinical Study
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- 入组人数
- 24
- 试验地点
- 4
- 主要终点
- change from baseline in the anatomic form and surface characteristics of the peri implant mucosa
研究概览
简要总结
Different studies have proposed the use of zirconia abutments to improve the aesthetic outcomes in the anterior sextant, however the results have been inconclusive. A tendency towards a better aesthetic result with the use of zirconia instead of titanium abutments was observed, although more technical complications were also recorded.The use of zirconia abutments in the anterior maxillary region showed a tendency towards better matching, although differences were not significant. In addition, with these abutments more technical complications were observed, what increased the cost and time. More studies with larger samples and longer observations periods are needed to recommend the use of zirconia abutments for this clinical situation
详细描述
The purpose of the present study was to evaluate the clinical and aesthetic outcomes of single tooth implant restorations, where different abutment materials were used (zirconia vs titanium) associated with metal-ceramic crowns. The evaluation was carried out by means of an aesthetic composite index combined with patient evaluation
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •mono-edentulism condition in the aesthetic zone
- •minimum of 2 mm of keratinized gingiva
排除标准
- •systemic diseases
结局指标
主要结局
change from baseline in the anatomic form and surface characteristics of the peri implant mucosa
时间窗: one month and one year after the placement of the definitive crowns
the following parameters were assessed by means of standardized photographs: contour of the labial surface of the mucosa and its colour; when compared to the adjacent teeth , penalty points were assigned ( 0 = excellent; 1 or 2 = satisfactory; 3 or 4 = moderate; 5 ore more, poor).
次要结局
- change from baseline in interdental soft tissue position(one month and one year after the placement of the definitive crowns)
- change from baseline in thickness of the peri implant mucosa(one month and one year after the placement of the definitive crowns)
- change from baseline in crestal bone levels(one month and one year after placing the definitive crown)
研究者
nicola baldini
oral surgeon
University of Firenze and Siena, Napoli, Italy