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NCT07057401
Evaluation of Clinical Wear and Surface Roughness of Partial Restorations Produced by Additive and Subtractive Manufacturing Methods: A Split-Mouth Randomized Controlled Clinical Trial
NA trial testing CAD-CAM Manufactured Crowns in CAD/CAM Space Maintainer in 30 participants. Not yet recruiting.
20 July 2026
Quick facts
| Lead sponsor | Husna Selinay |
|---|---|
| Phase | NA |
| Status | Not yet recruiting |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | double |
| Primary purpose | treatment |
| Enrollment | 30 |
| Start date | 20 September 2025 |
| Primary completion | 20 July 2026 |
| Estimated completion | 20 June 2027 |
| Sites | 1 location across Turkey (Türkiye) |
Drugs / interventions tested
- CAD-CAM Manufactured Crowns
- 3D Printed Crowns
Conditions studied
- CAD/CAM Space Maintainer — all drugs for CAD/CAM Space Maintainer →
- 3D Printing — all drugs for 3D Printing →
- Dental Treatment — all drugs for Dental Treatment →
- Dental Disease — all drugs for Dental Disease →
Sponsor
Husna Selinay
Who can join
Adults 15 to 70, any sex, with CAD/CAM Space Maintainer or 3D Printing. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
The aim of this study is to compare the surface roughness and wear values of crowns fabricated using currently utilized 3D printing and CAD-CAM technologies. In recent years, crown restorations produced with CAD-CAM systems have been safely used in dentistry. These types of restorative materials are expected not to undergo significant wear themselves and also not to cause wear on natural teeth. Therefore, the structural resistance and hardness of the material are clinically very important. Restorations produced using 3D printing are among the latest technological developments in dentistry. Additive manufacturing has been defined by the American Society for Testing and Materials (ASTM) as "the process of joining materials layer upon layer to make objects from 3D model data, as opposed to subtractive manufacturing methodologies." 3D printers have started to be used in various disciplines of dentistry such as dental education, oral surgery, dental implantology, orthodontics, pedodontics, prosthodontics, and restorative dentistry. In restorative clinics, they can especially be used in intracoronal restorations. However, studies in this area are quite limited. The objective of this study is to evaluate the wear values using a Geomagic 3X device and the surface roughness values using a profilometer device over a 12-month period on single crown restorations applied to permanent first molars fabricated by CAD-CAM and 3D printing techniques. A total of 26 single crown restorations will be performed on first molars. Participants will be selected among individuals aged 18-50 who apply to the Department of Restorative Dentistry, Faculty of Dentistry, Çukurova University. Eligible individuals must be systemically healthy, have no periodontal attachment loss, have an indication for crown restoration, and have a natural opposing tooth in contact with the restored tooth.
Publications & conference data
No peer-reviewed publications indexed yet for this trial.
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Related trials
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 NCT07057401 (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 Husna Selinay
- Last refreshed: 9 July 2025
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