Clinical Outcomes of Premolars Restored With Ceramic Vonlay Restorations Versus Onlay Using Modified USPHS Criteria (Randomized Clinical Trial)
试验速览
- 阶段
- 不适用
- 入组人数
- 26
- 试验地点
- 1
- 主要终点
- Fracture
研究概览
简要总结
Evaluation the clinical performance of premolars restored with ceramic vonlays versus onlays using modified USPHS criteria after follow-up period of 0,3,6,9,12 months
详细描述
two groups of patients with vital premolars indicated for fixed restorations will be selected according to special inclusion criteria (n=13) in each group (total of 26). one group will receive minimally invasive cavity preparations for posterior indirect restorations either vonlay or onlay according to each group the patient will be assessed using Modified USPHS Criteria at 0,3,6,9,12 months regarding fracture, marginal integrity and marginal discoloration
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)
盲法说明
Double blinding
入排标准
- 年龄范围
- 25 Years 至 44 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age range of the patients from 25-44 years old, who could read understand and write to sign the consent by himself /herself
- •Have no active periodontal or pulpal diseases, have teeth with good restorations.(19)
- •Psychologically and physically able to withstand conventional dental procedures
- •Patients with teeth problems indicated for onlay and vonlay (premolars).
- •Decayed teeth.
- •Teeth restored with large filling restorations.
- •Able to return for follow-up examinations and evaluation.
排除标准
- •Patient less than 25 or more than 44 years.
- •Patient with active resistant periodontal diseases.
- •Patients with poor oral hygiene, high caries risk and uncooperative patients.
- •Pregnant women.
- •Patients in the growth stage with partially erupted teeth.
- •Psychiatric problems or unrealistic expectations.
- •Lack of opposing dentition in the area of interest. 8- The presence of a removable or fixed orthodontic appliance, signs of bruxism or clenching, the absence of more than one unit in the posterior region
研究组 & 干预措施
Vonlay lithium disilicate ceramic restorations
Vonlay is a hybrid of an onlay with an extended buccal veneer surface for use in bicuspid regions where there is mostly enamel to bond to. The vonlay is less invasive, more readily repairable, less technique-sensitive to attain adequate bonding, and will leave sounder tooth structure remaining if further treatment is required in the future
干预措施: Vonlay Ceramic restorations (Procedure)
Onlay lithium disilicate ceramic restorations
Onlays are used to restore large areas of decay and also used to replace old restorations, whether they are defective amalgam fillings, old cast-gold onlays, or fabricated from some other material
干预措施: Onlay Ceramic restorations (Procedure)
结局指标
主要结局
Fracture
时间窗: change from baseline at 3,6,9,12 months
assessed according to modified USPHS criteria (Alpha, Bravo)
次要结局
- Marginal discoloration(0,3,6,9,12 months)
- Marginal integrity(0,3,6,9,12 months)
研究者
Mohamed Abdel Aziz Hazzaa
Principal Investigator
Cairo University