Surface Hardness and Wear Resistance of Artificial Teeth
Conditions
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.
Interventions
OTHERsurface hardness test for denture teeth
surface hardness test of denture teeth at insertion then after 6 months of use
OTHERwear resistance of denture teeth measurement
2D, Vertical wear, 3D Volumetric wear were measured for denture teeth
Sponsors
Mansoura University
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
55 Years to 65 Years
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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 |
Countries
Egypt
Outcome results
None listed