NCT06575803Active, not recruiting
Recycling of Three Pressable Ceramics With Different Weight Percentage
Effect of Repressing of Three Pressable Ceramics With Different Weight Percentage on Patient Satisfaction, Microstructure and Biaxial Flexural Strength
Source: ClinicalTrials.gov · Last updated 28 Aug 2024
Brief summary (registry, in English)
Introduction: Green dentistry, is high-technology approach that reduces the environmental impact of dental practices, improper disposal of dental materials wastes results in environmental hazards. Aim of the study: This studied will be performed o evaluate the effect of repressing of three different types of pressable ceramics, Ips Emax press, Lisi press and Celtra press with different weight percentages on patient satisfaction, mechanical properties, microstructural features and composition of these pressable ceramics. Materials \& Methods: Seventy five ( N=75) pressable ceramic discs will be constructed ,The samples will be divided to three groups (n=25 each) according to types and composition of pressed and repressed ceramics .Group 1: IPS Emax press .Group 2: Gc Lisipress Group 3: Celtrapress . Each group willbe divided into 5 sub-groups (n=5) according to the weight percentage of newly pressed and repressed ceramics. Subgroup A: 100% new ceramics. Subgroup B: 75% new and 25 % repressed ceramic .Subgroup C: 50% new and 50% repressed ceramics. Subgroup D:25%new and 75% repressed ceramics. Subgroup E: 100% repressed ceramics. Biaxial flexural strength will be measured using universal testing machine. X-ray diffraction will be performed to identify the crystalline phases, and a scanning electron microscope will be used to describe microstructural features. Energy dispersive X-ray analysis will be used to evaluate change in composition Also surface hardness will be evaluated. Patient satisfaction, plaque, cervical caries and marginal discoloration will be evaluated in a follow- up of one year (in vivo part).
- Status (registry)
- Active, not recruiting
- Study type
- Interventional
- Enrollment
- 15 (estimated)
- First submitted
- 23 Jul 2024
- Start date
- 1 Jul 2024
- Primary completion date
- Dec 2026
- Lead sponsor
- Faculty of Dental Medicine for Girls
- NCT number
- NCT06575803
What you commit to
- Study type: Interventional
- Planned participants: 15
- From 1 Jul 2024 to the primary completion date, Dec 2026
- 2 sites in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Other
- Patients with severe periodontitis, gingival inflammation, parafunction and poor oral hygiene or high caries activity will be excluded from the present study.
Who the study is looking for
- Patients requesting single crowns for mandibular posterior teeth.
- Mandibular posterior teeth that will be prepared to receive single crowns should have adequate crown root ratio, periodontal support, exhibited minimal mobility and adequate tooth preparation length to ensure proper resistance and retention form .
- Cooperative patients.
Age in the registry: 18 years to 60 years · Sex: All · Accepts healthy volunteers
Sites (2)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Lina Mohamed Mohamed Abdallah Ali Elashry Coordinator of this site? Confirm its status | Cairo | Egypt | Unknown status |
| Lina Mohamed Mohamed Abdallah Ali Elashry Coordinator of this site? Confirm its status | Ismailia | Egypt | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.