Survival and Success of CAD/CAM Restorations After 5 Years of Intraoral Use

Comparative Study of Survival and Success of Restorations Exclusively Using the CAD/CAM Digital Method After 5 Years of Intraoral Use

This study evaluates the survival and success rates of dental restorations fabricated exclusively using CAD/CAM technology over a period of 5 years. The study will involve placing CAD/CAM restorations using a digital workflow that includes intraoral scanning, computer-aided design (CAD), and computer-aided manufacturing (CAM). The restorations will be monitored for factors such as marginal adaptation, wear resistance, and patient-reported outcomes. The goal is to determine the long-term clinical effectiveness of CAD/CAM restorations compared to traditional methods. The findings aim to improve the understanding and application of digital dental technology in clinical practice.

Study Overview

• Status: Active, not recruiting
• Conditions: Tooth Wear
• Intervention / Treatment: Device: CAD/CAM Digital Restoration Placement; Device: Study of the Survival and Success of Endodontic Posts Using the CAD/CAM Digital Method After 5 Years of Intraoral Use

• Study Type: Interventional
• Enrollment (Estimated): 80
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Greece
  • Thessaloniki, Greece, 54124
    • Aristotle University of Thessaloniki

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Adults aged 18-65 years
• Patients with single or multiple CAD/CAM restorations placed within the last 5 years
• Adequate oral hygiene and willingness to participate in follow-up assessments
• Healthy periodontal status or controlled periodontal condition Signed informed consent form

Exclusion Criteria:

• Patients with systemic diseases affecting oral health (e.g., diabetes, osteoporosis)
• Pregnant or breastfeeding individuals
• Smokers or individuals with a history of heavy smoking
• Patients with untreated dental caries or advanced periodontal disease
• Individuals with previous allergic reactions to CAD/CAM materials used

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm

Intervention / Treatment

Experimental: CAD/CAM Restoration Arm; This arm involves the placement of dental restorations using CAD/CAM technology. Participants receive restorations fabricated through a digital workflow, which includes intraoral scanning, CAD software design, and milling of the restorations using CAM equipment. The restorations are made from high-quality ceramic or composite materials, chosen based on their suitability for long-term intraoral use. The process eliminates the need for conventional impression techniques, ensuring a precise fit. Participants are monitored over a 5-year period to evaluate the survival rate and success of the restorations, focusing on factors such as marginal integrity, wear resistance, and patient-reported outcomes.

Device: CAD/CAM Digital Restoration Placement; This intervention involves the placement of dental restorations exclusively using CAD/CAM technology, which includes digital scanning, design, and milling of the restorations. The restorations are fabricated from high-quality ceramic or composite materials that are commonly used in CAD/CAM systems. The process begins with an intraoral scan to capture the patient's dental anatomy, followed by the design of the restoration using CAD software, and milling with CAM equipment. The restorations are then adjusted, finished, and cemented intraorally. This intervention is distinct as it utilizes a fully digital workflow without the use of conventional impression techniques, aiming to assess the long-term clinical performance, survival rate, and success of these restorations over a period of 5 years. The study monitors factors such as restoration integrity, marginal adaptation, wear resistance, and patient-reported outcomes; Other Names: Digital Dental Restoration; Intraoral Scanning Technique; Device: Study of the Survival and Success of Endodontic Posts Using the CAD/CAM Digital Method After 5 Years of Intraoral Use; This intervention involves the exclusive use of the CAD/CAM digital method for fabricating and placing endodontic posts. The study evaluates the long-term survival and success rate of these posts over a period of 5 years in an intraoral setting. This method is distinct as it eliminates the need for traditional impression techniques, utilizing digital scanning and milling for precise and consistent post fabrication. The focus is on comparing outcomes with those of conventional analog methods to establish the efficacy and reliability of the CAD/CAM approach.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Survival Rate of CAD/CAM Restorations Over 5 Years	This outcome measure evaluates the survival rate of CAD/CAM restorations over a 5-year period. Survival is defined as restorations remaining functional without failure such as fracture, debonding, or significant wear that would require replacement or major repair."	5 years post-restoration

Collaborators and Investigators

• Sponsor: Aristotle University Of Thessaloniki
• Investigators: Study Chair: KOSMAS TOLIDIS, PROFESSOR, PROFESSOR, SCHOOL OF DENTISTRY, ARISTOTLE UNIVERISTY OF THESSALONIKI

Study record dates

Study Major Dates

• Study Start (Actual): November 30, 2023
• Primary Completion (Estimated): November 30, 2028
• Study Completion (Estimated): November 30, 2029

Study Registration Dates

• First Submitted: April 2, 2025
• First Submitted That Met QC Criteria: December 9, 2025
• First Posted (Actual): December 11, 2025

Study Record Updates

• Last Update Posted (Actual): December 11, 2025
• Last Update Submitted That Met QC Criteria: December 9, 2025
• Last Verified: December 1, 2025

More Information

Terms related to this study

• Keywords: CAD/CAM; Digital Dentistry; Lithium Disilicate
• Additional Relevant MeSH Terms: Stomatognathic Diseases; Tooth Diseases; Tooth Wear
• Other Study ID Numbers: 157/04-04-2022

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No