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NCT04274959
Functional Evaluation of Ceramic Onlay Restorations With Different Preparation Designs
NA trial testing ceramic onlay with shoulder preparation design. in Posterior Ceramic Onlays in 39 participants. Status unknown.
1 February 2021
Quick facts
| Lead sponsor | Cairo University |
|---|---|
| Phase | NA |
| Status | Status unknown |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | double |
| Primary purpose | treatment |
| Enrollment | 39 |
| Start date | 20 February 2020 |
| Primary completion | 1 February 2021 |
| Estimated completion | 1 June 2021 |
Drugs / interventions tested
- ceramic onlay with shoulder preparation design.
- ,ceramic onlay with butt joint preparation design
Conditions studied
- Posterior Ceramic Onlays — all drugs for Posterior Ceramic Onlays →
- Badly Decayed Teeth Need to be Restored , Teeth Restored With Large Filling Restorations — all drugs for Badly Decayed Teeth Need to be Restored , Teeth Restored With Large Filling Restorations →
Sponsor
Cairo University
Who can join
Adults 25 to 45, any sex, with Posterior Ceramic Onlays or Badly Decayed Teeth Need to be Restored , Teeth Restored With Large Filling Restorations. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
Tooth preparation designs for posterior ceramic restorations have been based on traditional cast metal restoration designs, but with more occlusal tooth reduction and with a slightly increased taper. These preparations may involve the removal of considerable tooth structure. As more structure is removed, higher tooth strain and lower fracture resistance may occur.5 The increased tooth structure loss may increase cuspal flexure, thereby reducing the tooth fracture resistance, or open the restoration-tooth interface . However, it has been demonstrated that cusp recovery results in fewer failures, likely increasing the longevity of posterior ceramic restorations. Recently, minimally invasive cavity preparations for posterior indirect restorations were demonstrated to present the benefit of conservation of tooth structure, as well as improved stress distribution. However, the performance of posterior restoration is also material dependent. Due to the continuous advancements in dental ceramics and innovative manufacturing techniques. The aim of this study is to evaluate the clinical functional performance of ceramic onlay restorations with butt joint preparation design and compare them to shoulder preparation design.
Publications & conference data
No peer-reviewed publications indexed yet for this trial.
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT04274959 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by Cairo University
- Last refreshed: 18 February 2020
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