Surface Hardness and Wear Characteristics of Prefabricated and CAD/CAM Milled Artificial Teeth

Not Applicable

Completed

• Conditions: Surface Hardness and Wear Resistance of Artificial Teeth
• Interventions: Other: surface hardness test for denture teeth; Other: wear resistance of denture teeth measurement

• Registration Number: NCT06179615
• Lead Sponsor: Mansoura University

Brief Summary

Purpose: This study aimed to assess the 3-dimentional wear )3D) (volumetric loss) and 2-dimentional wear (2D) (vertical loss) and surface hardness of ready-made (prefabricated) and CAD/CAM milled artificial denture teeth.

material and methods: In a cross-over study design, ten completely edentulous patients were randomly chosen for this study and given two complete dentures. The first complete denture was constructed with pre-fabricated teeth. The second complete denture was constructed with CAD\\CAM milled teeth. The complete denture teeth were 3D scanned at the time of insertion (T0), after three months (T3), and after six months (T6) of denture insertion. Utilizing 3D surface superimposition techniques, the vertical (2D wear), and Volumatic (3D wear) material loss were measured. The hardness of the teeth were evaluated at the time of denture insertion (T0) then after 6 months (T6) of denture insertion by Vickers hardness test. Statistical analysis was done using SPSS software. Paired groups were compared by paired t test. Significant difference was considered if P ≤ 0.05.

Detailed Description

Not available

Study Timeline

• Study Start: 2022-06-10
• Primary Completion: 2023-07-25
• Study Completion: 2023-09-13
• Status Verified: 2023-12
• Study First Submitted: 2023-12-11
• Study First Submitted QC: 2023-12-19
• Last Update Submitted: 2023-12-19
• Study First Posted: 2023-12-22
• Last Update Posted: 2023-12-22

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

• completely edentulous
• angle class I maxillomandibular relations

Exclusion Criteria

• Angle's class II, III maxillomandibular relation
• systemic disease that affect the bone and soft tissue health

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
complete denture with CAD\CAM milled artificial teeth	surface hardness test for denture teeth	complete denture constructed with CAD\\CAM Milled artificial teeth and inserted in the patient mouth to be used for 3, 6 months
complete denture with prefabricated artificial teeth	wear resistance of denture teeth measurement	complete denture constructed with prefabricated artificial teeth and inserted in the patient mouth to be used for 3, 6 months
complete denture with CAD\CAM milled artificial teeth	wear resistance of denture teeth measurement	complete denture constructed with CAD\\CAM Milled artificial teeth and inserted in the patient mouth to be used for 3, 6 months
complete denture with prefabricated artificial teeth	surface hardness test for denture teeth	complete denture constructed with prefabricated artificial teeth and inserted in the patient mouth to be used for 3, 6 months

Primary Outcome Measures

Name	Time	Method
wear resistance of denture artificial teeth	6 months after denture use	2D, 3D wear of denture teeth were measured using denture scanning and superimposition of the sanning at insertion to that after 3, 6 months using Exocad soft ware
surface hardness of the denture artificial teeth	6 months after denture use	the measurement of surface hardness was done using Vickers's test. this measurements was done at insertion then after 6 months

Trial Locations

Locations (1)

faculty of dentistry, Mansoura univeristy; 🇪🇬 Mansoura, Egypt