Clinical Evaluation of AI-Driven Designed Single Crowns

Hacettepe University47 enrolled

Overview

This clinical study compares tooth-supported single crowns designed by a dental technician and by an artificial intelligence (AI) driven automated design method. The two design methods are qualitatively compared in terms of buccal and lingual/palatal contours, proximal and occlusal contacts, and marginal fit using clinical evaluation. The two design methods are quantitatively compared in terms of global, buccal, and lingual/palatal surface deviations using three-dimensional surface deviation analysis.

This methodological clinical study evaluates tooth-supported single crowns produced using two different digital design methods within a fully digital workflow. For each participant, two crown restorations are designed for the same prepared posterior tooth: one by an experienced dental technician using conventional computer-aided design (CAD) software and the other using an artificial intelligence (AI)-driven automated design system. Both restorations are produced using the same manufacturing workflow and are clinically evaluated under standardized conditions. The two restorations are evaluated for buccal and lingual/palatal crown contours, mesial and distal proximal contacts, occlusal contacts, and marginal adaptation using predefined clinical criteria. In addition, three-dimensional (3D) surface deviation analysis is performed to quantitatively compare the two design methods at the global, buccal, and lingual/palatal surface levels. The study uses a within-participant comparison design, with both design methods evaluated on the same prepared tooth, thereby minimizing variability related to patient- and tooth-specific factors.

Study Type

INTERVENTIONAL

Allocation

Purpose

OTHER

Masking

NONE

Enrollment

Conditions

Artificial Intelligence in Dental Crown Design Tooth Crown Restoration Dental Restorations

Interventions

Dental Technician Crown DesignDEVICE

Single-crown restorations were designed by an experienced dental technician using 3Shape Dental System based on intraoral scan data. The restorations were designed using predefined contact parameters and a standardized CAD morphology library.

AI-Driven Automated Crown DesignDEVICE

Single-crown restorations were automatically designed for the same prepared teeth using the AI-driven 3Shape Automate platform based on intraoral scan data. The restorations were designed using contact parameters and a CAD morphology library standardized to those used in the dental technician design method.

Eligibility

Sex: ALLMin age: 20 YearsMax age: 39 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Provision of written informed consent to participate in the study * Adults aged 20-39 years * Good general and local periodontal health with adequate oral hygiene * Indication for a single full-coverage crown restoration in the posterior region * Asymptomatic abutment tooth on clinical examination * No periradicular radiolucency associated with the abutment tooth on periapical radiographic examination * Sufficient remaining tooth structure without the need for a post-and-core restoration, allowing preservation of at least three axial walls after preparation, achievement of a ferrule with at least 1 mm of sound tooth structure coronal to the gingival level, and standardized finish-line preparation * Presence of intact natural teeth or restorations mesial and distal to the abutment tooth and an opposing tooth or restoration allowing establishment of occlusal contact * Stable interarch occlusal relationship * No parafunctional habits Exclusion Criteria: * Refusal to provide written informed consent * Serious systemic disease or condition that may contraindicate or interfere with tooth preparation and restorative treatment, including steroid therapy, uncontrolled diabetes mellitus, immunological disorders, pregnancy, or conditions preventing adequate cooperation * Systemic or local risk factors that may affect the treatment process, including active periodontal disease or inadequate oral hygiene * History of allergy to local anesthetics containing epinephrine * Functional or muscular temporomandibular disorders limiting mouth opening * Parafunctional habits such as bruxism

Locations (1)

Hacettepe University Faculty of Dentistry, Department of Prosthodontics

Ankara, Ankara, Turkey (Türkiye)

Outcomes

Primary Outcomes

Clinical Evaluation of Buccal and Lingual/Palatal Crown Contours

Dental technician-designed and AI-driven restorations are clinically evaluated for buccal and lingual/palatal crown contours using modified California Dental Association (CDA) criteria. Buccal and lingual/palatal surfaces are scored separately, and the scoring system distinguishes overcontour from undercontour.

Time frame: Day 1

Clinical Evaluation of Proximal Contacts

Dental technician-designed and AI-driven restorations are clinically evaluated for mesial and distal proximal contacts using modified California Dental Association (CDA) criteria. Mesial and distal contacts are scored separately for each restoration.

Time frame: Day 1

Clinical Evaluation of Occlusal Contacts

Dental technician-designed and AI-driven restorations are clinically evaluated for occlusal contacts using modified California Dental Association (CDA) criteria. Occlusal contacts are scored for each restoration using the predefined ordinal scoring system.

Time frame: Day 1

Clinical Evaluation of Marginal Adaptation

Dental technician-designed and AI-driven restorations are clinically evaluated for marginal adaptation using modified California Dental Association (CDA) criteria. Marginal adaptation is scored for each restoration using the predefined ordinal scoring system.

Time frame: Day 1

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.