Endodontic Posts Using the CAD/CAM Digital Method.

This study investigates the survival and success rates of endodontic posts exclusively fabricated using the CAD/CAM digital method over a period of 5 years of intraoral use. The objective is to evaluate the efficacy and long-term outcomes of the digital approach compared to traditional techniques, aiming to determine the reliability and precision of CAD/CAM technology in the fabrication of endodontic post restorations.

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Key information

Conditions

Endodontic Treatment Tooth Restoration

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

School of Dentisty, Aristotle University of Thessaloniki

Thessaloniki, 54124, Greece

About this study

This clinical study aims to evaluate the survival and success rates of endodontic posts exclusively fabricated using the CAD/CAM digital method over a period of 5 years of intraoral use. The study focuses on the utilization of advanced digital technology for the design and fabrication of endodontic posts, which replaces traditional impression-taking and analog methods.

Participants in the study will undergo treatment where digital intraoral scanners will capture the post-space anatomy, and CAD software will be used to design custom posts that are then milled using CAM technology. The fabricated posts will be evaluated for fit, stability, and clinical performance over a prolonged period.

The primary outcome measures include the survival rate of the posts (absence of dislodgement or failure) and the success rate, which incorporates the functional and aesthetic integration of the post with the surrounding dental structures. Secondary outcomes will assess the incidence of complications such as root fractures, debonding, and endodontic failure.

This study distinguishes itself by exclusively using the digital CAD/CAM approach, with no involvement of traditional methods, ensuring precision and consistency in post fabrication. It aims to provide comprehensive data on the effectiveness and reliability of CAD/CAM technology for endodontic applications, offering insights that could influence clinical protocols and materials used in restorative dentistry

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Participants aged 18 to 70 years
Patients requiring endodontic treatment with post placement
Individuals with adequate tooth structure to support a post restoration
Patients who consent to participate and commit to follow-up visits for a period of 5 years
Good overall oral health with no active periodontal disease

Exclusion criteria

Patients with systemic conditions that could affect oral health or healing (e.g., uncontrolled diabetes or immune-compromising diseases)
Individuals with severe periodontal disease or compromised tooth structure unsuitable for post placement
Pregnant or breastfeeding women
Patients unwilling or unable to commit to the 5-year follow-up period
Individuals with allergies or adverse reactions to dental materials used in the CAD/CAM process
Minimum Age = 18 Years and Maximum Age = 70 Years

Treatment and study plan

Lithium Disilicate CAD/CAM Post

Device

Patients in this arm receive custom CAD/CAM posts fabricated from lithium disilicate. All posts are designed, milled, and cemented using standardized preparation, adhesive, and cementation protocols. Clinical follow-up evaluates post survival, success rates, biological response, and the need for repair or replacement over time.

Active Comparator: Polymer-Based CAD/CAM Posts

Device

Patients in this arm receive custom CAD/CAM posts fabricated from high-performance polymer materials. Posts are manufactured and cemented using the same standardized clinical workflow applied in Arm 1. This arm allows comparison of survival, success rates, functional stability, and biological outcomes relative to lithium disilicate CAD/CAM posts.

Primary outcomes

Survival Rate of CAD/CAM Endodontic Posts

Time frame: Assessed over a period of 5 years post-placement

The primary outcome measure is the survival rate of endodontic posts fabricated using the CAD/CAM digital method. Survival is defined as the post remaining in situ without any signs of dislodgement, root fracture, or clinical failure necessitating replacement. Posts will be evaluated periodically to monitor their clinical performance and integrity, ensuring that no adverse events such as post loosening or tooth failure occur

Sponsors and collaborators

Lead sponsor

Aristotle University Of Thessaloniki

Other

Registry information

Official study title

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

Important dates

Study start: 2023
Primary completion: 2028
Study completion: 2029
First posted: Dec 22, 2025
Registry last updated: Dec 23, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

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