Abstract Archives

IADR Abstract Archives

BaTiO3 Modified 3Y-TZP With Improved Tribological Properties for Dental Applications

Objectives: The yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) are widely used in dental prosthetics. However, one drawback was that enamel may be subject to accelerated wear when opposed by Y-TZP ceramics. Therefore, investigations are still necessary to come up with options to improve the wear behavior of 3Y-TZP. In this study, the friction and wear behavior of BaTiO3 (BT) modified 3Y-TZP were investigated for the first time.
Methods: A set of BT modified 3Y-TZP ceramic composites were prepared. The effects of different BT ratios (0 mol%, 3 mol%, 5 mol% and 7 mol%) on the tribological properties were studied. The micro-indentation and micro-friction tests carried out by the nanotribometer and the macro-friction tests of the BT/3Y-TZP ceramic composites against natural teeth enamel were performed to evaluate their potential application in dental prosthesis. FIB milling, SEM, TEM and EDS analyses were used to reveal the wear related processes that would occur below the surface.
Results: The mechanical properties of ceramic composites were not decreased by the addition of BT in different proportions. The analyses revealed that 5 mol% BT/3Y-TZP had the best wear properties at both the micro and macro levels. More interestingly, compared with the other three groups, the grinding weight loss rate of 5 mol% BT/3Y-TZP ceramic composite and natural tooth was the lowest.
Conclusions: The improved wear properties of 5 mol% BT/3Y-TZP were mainly because of the smaller micropores on the surface and the smaller grain size produced by the uniform distribution of BT second phase. Therefore, 5 mol% 3Y-TZP ceramic composites may have the potential of application in dental prosthodontics.
Division:
Meeting: 2022 IADR/APR General Session (Virtual)
Location:
Year: 2022
Final Presentation ID: 1238
Abstract Category|Abstract Category(s): Dental Materials 1: Ceramic-based Materials
Authors
  • Li, Wenjie  ( Xiangya Stomatological Hospital, Central South University , Changsha , Hunan , China ;  Xiangya School of Stomatology, Central South University , Changsha , Hunan , China ;  State Key Laboratory of Powder Metallurgy, Central South University , Changsha , Hunan , China ;  Hunan Key Laboratory of Oral Health Research, Central South University , Changsha , Hunan , China ;  Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Central South University , Changsha , Hunan , China ;  National Key Laboratory of Science and Technology on High-strength Structural Materials, Central South University , Changsha , Hunan , China )
  • Chen, Jun  ( Xiangya School of Stomatology, Central South University , Changsha , Hunan , China ;  Hunan Key Laboratory of Oral Health Research, Central South University , Changsha , Hunan , China ;  Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Central South University , Changsha , Hunan , China )
  • Li, Zhuan  ( State Key Laboratory of Powder Metallurgy, Central South University , Changsha , Hunan , China ;  National Key Laboratory of Science and Technology on High-strength Structural Materials, Central South University , Changsha , Hunan , China )
  • Lu, Yanqin  ( Xiangya Stomatological Hospital, Central South University , Changsha , Hunan , China ;  Xiangya School of Stomatology, Central South University , Changsha , Hunan , China ;  Hunan Key Laboratory of Oral Health Research, Central South University , Changsha , Hunan , China ;  Hunan Clinical Research Center of Oral Major Diseases and Oral Health, Central South University , Changsha , Hunan , China )
    • Support Funding Agency/Grant Number: Health and Family Planning Commission of Hunan Province (2020800)
    Financial Interest Disclosure: NONE
    SESSION INFORMATION
    Interactive Talk Session
    Ceramic-based Materials III: Physical Properties
    Friday, 06/24/2022 , 03:45PM - 05:15PM