Surface Hardness and Wear Resistance of Prefabricated and CAD/CAM Milled Artificial Teeth: A Cross-over Clinical Study
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Mansoura University
- Enrollment
- 10
- Locations
- 1
- Primary Endpoint
- wear resistance of denture artificial teeth
Study Overview
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.
Study Design
- Study Type
- Interventional
- Allocation
- Randomized
- Intervention Model
- Crossover
- Primary Purpose
- Other
- Masking
- None
Eligibility Criteria
- Ages
- 55 Years to 65 Years (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
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
Arms & Interventions
complete denture with prefabricated artificial teeth
complete denture constructed with prefabricated artificial teeth and inserted in the patient mouth to be used for 3, 6 months
Intervention: surface hardness test for denture teeth (Other)
complete denture with prefabricated artificial teeth
complete denture constructed with prefabricated artificial teeth and inserted in the patient mouth to be used for 3, 6 months
Intervention: wear resistance of denture teeth measurement (Other)
complete denture with CAD\CAM milled artificial teeth
complete denture constructed with CAD\CAM Milled artificial teeth and inserted in the patient mouth to be used for 3, 6 months
Intervention: surface hardness test for denture teeth (Other)
complete denture with CAD\CAM milled artificial teeth
complete denture constructed with CAD\CAM Milled artificial teeth and inserted in the patient mouth to be used for 3, 6 months
Intervention: wear resistance of denture teeth measurement (Other)
Outcomes
Primary Outcomes
wear resistance of denture artificial teeth
Time Frame: 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
Time Frame: 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
Secondary Outcomes
No secondary outcomes reported
Investigators
Aisha Zakaria Hashem Mostafa
Professor of prosthodontics
Mansoura University