Evaluation of Esthetic and Biomechanical Outcome of Maxillary Anterior Single-Tooth Zirconia Implant Supported PEKK Crowns Versus Lithium Disilicate Crowns on PEKK Abutments: Randomized Controlled Trial
试验速览
- 阶段
- 不适用
- 入组人数
- 10
- 主要终点
- Esthetic outcome
研究概览
简要总结
aim of study is to evaluate esthetic and biomechanical outcome of maxillary anterior single-tooth zirconia implant supported PEKK crowns compared to lithium disilicate crowns on PEKK abutments .
详细描述
High performance polymers may be a valid alternative to other conventional materials for abutments and crowns over zirconia implants because of their cushioning effect and elastic modulus (5.1GPa), which absorb occlusal forces and avoid overload of the underlying bone from the direct transmission of biting impacts ; which could optimize and preserve osseointegration with time. Zirconia implants with high performance polymers restorations can be considered a good alternative for replacing natural teeth.
For many years lithium disilicate has been the esthetics standard used in Veneers ,Inlays , onlays, occlusal veneers, partial crowns,minimally invasive crowns and Implant superstructures due to its natural-looking tooth colouring and excellent light-optical properties.
Due to the promising esthetics of high performance polymers as it can be veneered with different veneering materials it would successfully restore esthetics.
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
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 45 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age >18 years
- •No active intraoral or systemic disease
- •No pregnancy or lactation
- •controlled periodontal conditions
- •Adequate bone volume to place an implant
- •Occlusal function with a natural tooth
排除标准
- •Current pregnancy.
- •Psychiatric disorders.
- •Poor motivation.
- •Several occlusal parafunction.
- •Persistent intraoral infections.
- •Severe mucosal disease.
- •Active periodontitis.
- •Poor oral hygiene.
- •Lack of occluding dentition at implant rehabilitation level
研究组 & 干预措施
lithium disilicate crowns
lithium disilicate crowns are well documented in the literatures as successful restoration modality.
干预措施: poly ether ketone ketone (Other)
lithium disilicate crowns
lithium disilicate crowns are well documented in the literatures as successful restoration modality.
干预措施: lithium disilicate (Other)
poly ether ketone ketone crowns
pekkton
干预措施: poly ether ketone ketone (Other)
poly ether ketone ketone crowns
pekkton
干预措施: lithium disilicate (Other)
结局指标
主要结局
Esthetic outcome
时间窗: 9 month
measured by pink and white esthetics score
次要结局
- bone resorption(9 month)
研究者
Lamiaa Said Zaki AbdelSalam Elfadaly
Dr.
Cairo University