Quantitative Clinical Evaluation of the Occlusal Contact Trueness Affected by Six Chairside CAD/CAM Ceramic Materials：a Self-control Study
Sponsor study identifier
interventional
10
1 country
1
Study Start
November 1, 2019
Actual (reported)Primary Completion
July 1, 2021
Actual (reported)Study Completion
August 1, 2021
Actual (reported)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.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
August 1, 2021
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
November 1, 2019
Actual (reported)July 1, 2021
Actual (reported)August 1, 2021
Actual (reported)April 15, 2022
Actual (reported)April 26, 2022
Actual (reported)milling trueness(μm)
the absolute 3D deviation of occlusal contact points before and after milling
1 week
postprocessing trueness(μm)
the absolute 3D deviation of occlusal contact points before and after postprocessing
1 week
clinical trueness(μm)
the absolute 3D deviation of occlusal contact points before and after occlusal adjustment
1 week
10 crowns made of zirconia from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.
10 crowns made of Celtra Duo from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.
10 crowns made of e.max CAD from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.
6 crowns made from 6 chairside ceramic materials were milled by CEREC MCXL-EF mode for mandibular first molar of each participant. The six materials are as follows: ZIR: InCoris TZI (Dentsply Sirona, York, PA)， CD: Celtra Duo (Dentsply Sirona, York, PA), EMA: e.max CAD (ivoclar, Vivadent AG), LC: LiCi (UPCERA, China), ENA: Vita Enamic (Vita Zahnfabrik, Bad Sackingen, Germany) RC: RunCi (UPCERA, China)
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Fujian Medical University
Fuzhou, Fujian, 350004, China
Hao Yu
Fujian Medical University
10 participants (actual enrollment reported by the registry).
First Submitted
April 15, 2022
First Posted
April 26, 2022
10 crowns made of Lici from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.
10 crowns made of Enamic from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.
10 crowns made of Runci from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.
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Study Start
November 1, 2019
Actual (reported)Primary Completion
July 1, 2021
Actual (reported)Study Completion
August 1, 2021
Actual (reported)Last Updated
April 26, 2022
Record last verified: 2022-04
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Source: ClinicalTrials.gov.
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