Occlusal Contact Trueness Affected by Six Chairside CAD/CAM Ceramic Materials
- Conditions
- Tooth Defect
- Registration Number
- NCT05346744
- Lead Sponsor
- Fujian Medical University
- Brief Summary
The aim of this clinic self-control study was to evaluate the trueness of occlusal contact affected by six ceramic materials during chairside fabricating process and offer recommendations for occlusal offset according to different ceramic materials in CEREC CAD/CAM design process.
- Detailed Description
Ten participants were selected for this study. InCoris TZl(ZIR), Celtra Duo(CD), IPS e.max(EMA), UPCERA LICI (LC), Vita enamic(ENA), UPCERA RUNCI (RC) were used to produce crowns for everyone by CEREC chairside CAD/CAM system. The milling trueness, postprocessing trueness and clinical adjustment of occlusal contact were quantitatively analyzed by the ATOS high-precision scanner and Geomagic reverse engineering software.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 10
- with one mandibular first molar requiring crown restoration that have undergone root canal treatment;
- with complete permanent dentition;
- with carious lesions, abrasions, attrition, erosions or any kind of tooth defects;
- with any kind of restorations in occlusal surfaces;
- with any sign of temporomandibular dysfunction.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Primary Outcome Measures
Name Time Method milling trueness(μm) 1 week the absolute 3D deviation of occlusal contact points before and after milling
postprocessing trueness(μm) 1 week the absolute 3D deviation of occlusal contact points before and after postprocessing
clinical trueness(μm) 1 week the absolute 3D deviation of occlusal contact points before and after occlusal adjustment
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Fujian Medical University
🇨🇳Fuzhou, Fujian, China
Fujian Medical University🇨🇳Fuzhou, Fujian, China