Occlusal Contact Trueness Affected by Six Chairside CAD/CAM Ceramic Materials

Quantitative Clinical Evaluation of the Occlusal Contact Trueness Affected by Six Chairside CAD/CAM Ceramic Materials：a Self-control Study

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.

Study Overview

• Status: Completed
• Conditions: Tooth Defect
• Intervention / Treatment: Other: Chairside CAD/CAM ceramic materials for dental restoration

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.

• Study Type: Interventional
• Enrollment (Actual): 10
• Phase: Not Applicable

Contacts and Locations

Study Locations

• China
  • Fujian
    • Fuzhou, Fujian, China, 350004
      • Fujian Medical University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 30 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

1. with one mandibular first molar requiring crown restoration that have undergone root canal treatment;
2. with complete permanent dentition;

Exclusion Criteria:

1. with carious lesions, abrasions, attrition, erosions or any kind of tooth defects;
2. with any kind of restorations in occlusal surfaces;
3. with any sign of temporomandibular dysfunction.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Crossover Assignment
• Masking: Double

Number of Arms

6

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Zirconia; 10 crowns made of zirconia from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.	Other: Chairside CAD/CAM ceramic materials for dental restoration; 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)
Experimental: Celtra Duo; 10 crowns made of Celtra Duo from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.	Other: Chairside CAD/CAM ceramic materials for dental restoration; 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)
Experimental: e.max CAD; 10 crowns made of e.max CAD from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.	Other: Chairside CAD/CAM ceramic materials for dental restoration; 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)
Experimental: Lici UPCERA; 10 crowns made of Lici from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.	Other: Chairside CAD/CAM ceramic materials for dental restoration; 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)
Experimental: Enamic; 10 crowns made of Enamic from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.	Other: Chairside CAD/CAM ceramic materials for dental restoration; 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)
Experimental: Runci UPCERA; 10 crowns made of Runci from 10 individual were milled, post-processed and occlusal adjusted in patients' mouth.	Other: Chairside CAD/CAM ceramic materials for dental restoration; 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)

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
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

Collaborators and Investigators

• Sponsor: Fujian Medical University
• Investigators: Principal Investigator: Hao Yu, Fujian Medical University

Study record dates

Study Major Dates

• Study Start (Actual): November 1, 2019
• Primary Completion (Actual): July 1, 2021
• Study Completion (Actual): August 1, 2021

Study Registration Dates

• First Submitted: April 15, 2022
• First Submitted That Met QC Criteria: April 21, 2022
• First Posted (Actual): April 26, 2022

Study Record Updates

• Last Update Posted (Actual): April 26, 2022
• Last Update Submitted That Met QC Criteria: April 21, 2022
• Last Verified: April 1, 2022

More Information

Terms related to this study

• Keywords: chairside CAD/CAM; ceramic materials; trueness; occlusal contact
• Other Study ID Numbers: 2019028

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No