Evaluation of Clinical Wear and Surface Roughness of Partial Restorations Produced by Additive and Subtractive Manufacturing Methods: A Split-Mouth Randomized Controlled Clinical Trial

NCT07057401 | Not Yet Recruiting

• 1 other identifier: Department of Restorative Dent
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

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.

Conditions

CAD/CAM Space Maintainer; 3D Printing; Dental Treatment; Dental Disease

Keywords

subtractive manufacturing, additive manufacturing, roughness, wear

Outcome Measures

Primary Outcomes (2)

• Wear

  Measuring wear value using the Geomagic 3X device

  12 months

• Surface roughness

  Measuring surface roughness values using a profilometer device

  12 months

Study Arms (2)

CAD-CAM Group

EXPERIMENTAL

Participants will receive single crown restorations manufactured by subtractive manufacturing (CAD-CAM milling) techniques.

Device: CAD-CAM Manufactured Crowns

3D Printing Group

EXPERIMENTAL

Participants will receive single crown restorations manufactured by additive manufacturing (3D printing) techniques.

Device: 3D Printed Crowns

Interventions

CAD-CAM Manufactured Crowns DEVICE

Single crowns produced using computer-aided design and milling technology applied to permanent molars.

CAD-CAM Group

3D Printed Crowns DEVICE

Single crowns produced using 3D printing technology applied to permanent molars.

3D Printing Group

Eligibility Criteria

• Age: 15 Years - 70 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

• Teeth with Devital and Vital Cusp Loss

You may not qualify if:

• Root Canal Treated Teeth with Lesions
• Symptomatic Vital Teeth

Sponsors & Collaborators

• Husna Selinay: lead

Study Sites (1)

Çukurova Üniversitesi

Adana, sarıçam, 01250, Turkey (Türkiye)

Location

Related Links

• Related Info

MeSH Terms

Conditions

Stomatognathic Diseases

Study Officials

• ezgi sonkaya akburak, doctor lecturer

  Cukurova University Restorative Dentistry

  STUDY DIRECTOR

Central Study Contacts

HÜSNA SELİNAY S dağdelen, Research Assistant

CONTACT

+905453051080; selinay428@gmail.com

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, INVESTIGATOR
• Masking Details: The aim of the study is to evaluate the wear values and surface roughness of single crown restorations performed on permanent molar teeth produced by CAD-CAM and 3D printing methods over a 12-month period using the Geomagic 3X device for wear measurement and a profilometer for roughness assessment. Participants will be systemically healthy individuals aged 18 to 50 years, with no periodontal support loss, indicated for crown restoration, and having natural antagonist teeth, who apply to the Department of Restorative Dentistry Clinic at Çukurova University Faculty of Dentistry. A total of 15 single crown restorations will be performed on first molar teeth.
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Research Assistant Dentist

Model Details: Evaluation of Wear and Surface Roughness of Partial Crowns Produced by Additive and Subtractive Manufacturing: A 1-Year Randomized Controlled Clinical Trial

Study Record Dates

• First Submitted: June 3, 2025
• First Posted: July 9, 2025
• Study Start: September 20, 2025
• Primary Completion (Estimated): July 20, 2026
• Study Completion (Estimated): June 20, 2027
• Last Updated: July 9, 2025

Record last verified: 2025-07

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)