Clinical Outcomes of Zirconia-reinforced Lithium Silicate Partial Coverage Crowns Compared to Lithium Disilicate Partial Coverage Crowns: A Randomized Controlled Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 46
- 试验地点
- 1
- 主要终点
- Survival rate
研究概览
简要总结
The purpose of this randomized controlled clinical trial is to evaluate the clinical outcomes of Partial Coverage Restorations fabricated with zirconia-reinforced lithium silicate ceramic system compared to partial coverage restorations fabricated with lithium disilicate ceramic system.
详细描述
This study is constructed to assess in patients with carious vital posterior teeth whether the use of Vita Suprinity® (VITA Zahnfabrik H. Rauter GmbH & Co.KG- Germany) Zirconia reinforced lithium silicate partial coverage restorations will result in higher survival rates and better patient related outcome scores compared to IPS-e.max® CAD (Ivoclar Vivadent AG, Schaan - Liechtenstein) lithium disilicate partial coverage restorations.
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 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Participants:
- •Good oral hygiene, papillary bleeding index (PBI) < 35%.
- •Positive patient acceptance to participate in the trial.
- •Carious class II or MOD lesions
- •Vital upper or lower posterior teeth with no signs of irreversible pulpitis.
- •Normal occlusion
- •Single tooth restoration (no edentulous space that requires fixed prosthesis)
排除标准
- •Participants
- •Pregnancy.
- •Disabilities.
- •Systemic disease or severe medical complications.
- •Bad oral hygiene
- •Heavy smoking.
- •Xerostomia.
- •Lack of compliance.
- •Evidence of severe bruxism, clenching, or temporomandibular disorders.
- •Deep carious defects (close to pulp, less than 1 mm distance).
- •Periapical pathology or signs of pulpal pathology.
- •Tooth hypersensitivity.
- •Rampant caries.
- •Non-vital or endodontically treated teeth.
- •Sever periodontal affection.
- •Tooth mobility
研究组 & 干预措施
Suprinity
Vita Suprinity® (VITA Zahnfabrik H. Rauter GmbH & Co.KG- Germany) Zirconia reinforced lithium silicate PCRs
干预措施: Vita Suprinity (Other)
e.max
IPS-e.max® CAD (Ivoclar Vivadent AG, Schaan - Liechtenstein) lithium disilicate PCRs
干预措施: IPS e.max (Other)
结局指标
主要结局
Survival rate
时间窗: 12 month
Absolute failure is defined by clinical unacceptable fracture and crack development which required a replacement of the entire restoration, and/or secondary caries as well as endodontic complications
次要结局
- Restorations with surface roughness as assessed tactilely by US public health service criteria(12 month)
- Restorations with color mismatch with adjacent teeth as assessed visually by US public health service criteria(12 month)
- Restorations with Marginal gap as assessed visually by US public health service criteria(12 month)
- Restorations with Marginal discoloration as assessed visually by US public health service criteria(12 month)
- Restorations developed secondary caries as assessed visually by US public health service criteria(12 month)
研究者
Hanaa Sayed abdo Hassan Nassar
PHD student
Cairo University