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Hu Y, Gao J, Huang X, Li Y, Chen Z, Zhan D, Sano H, Carvalho RM, Fu J. The possibility of clinical bonding between metal/ceramic brackets to zirconia: in vitro study. Front Bioeng Biotechnol 2024; 12:1354241. [PMID: 38288261 PMCID: PMC10822958 DOI: 10.3389/fbioe.2024.1354241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/04/2024] [Indexed: 01/31/2024] Open
Abstract
Objective: The present study aimed to assess the bond strength and durability of six bonding agents concerning their application to metal or ceramic brackets and zirconia. Materials and Methods: Six resin cement bonding agents (XT, XTS, RSBU, RGBU, SBPM, and GMP) were chosen for this investigation. Specimens were either stored in distilled water at 37°C for 24 h or subjected to 5,000 thermocycles before conducting a Shear Bond Strength (SBS) test. Statistical analysis of the SBS data was performed using three-way ANOVA and Games-Howell tests (α = 0.05). The Adhesive Remnant Index was examined, and the debonding surface details on brackets and zirconia were observed. Results: For metal brackets, all groups demonstrated clinically acceptable bond strength, irrespective of storage conditions, except for the XT group. Regarding ceramic brackets, all groups displayed acceptable bond strength after 24 h of water storage. However, following thermocycling, a significant decrease in SBS was noted across all groups (p < 0.05), with SBPM exhibiting a higher bond strength. Three-way ANOVA analysis indicated that SBS values were notably influenced by each factor, and an interaction among the three independent variables was observed (p = 0.000). Conclusion: The reliable bond strength between ceramic brackets and zirconia was significantly lower after thermocycling compared to that of metal brackets and zirconia. SBPM exhibited consistent and robust bond strength between ceramic/metal brackets and zirconia across various storage conditions. Furthermore, the HEMA-free adhesive demonstrated a potentially more consistent bonding performance compared to the HEMA-containing adhesive employed in this study.
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Affiliation(s)
- Yichun Hu
- School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Jiayang Gao
- School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Xinyue Huang
- School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Yutong Li
- School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Ziyi Chen
- School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Desong Zhan
- Department of Dental Materials Science, The Second Department of Prosthodontics, School and Hospital of Stomatology, China Medical University, Shenyang, China
| | - Hidehiko Sano
- Department of Restorative Dentistry, Division of Oral Health Science, Faculty of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Ricardo M. Carvalho
- Department of Oral Biological and Medical Sciences, Division of Biomaterials, Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada
| | - Jiale Fu
- Department of Dental Materials Science, The Second Department of Prosthodontics, School and Hospital of Stomatology, China Medical University, Shenyang, China
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Alammar A, Blatz MB. The resin bond to high‐translucent zirconia—A systematic review. J ESTHET RESTOR DENT 2022; 34:117-135. [DOI: 10.1111/jerd.12876] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 02/01/2023]
Affiliation(s)
- Amirah Alammar
- Sijam Medical Center, Private Practice Riyadh Saudi Arabia
| | - Markus B. Blatz
- School of Dental Medicine, Department of Preventive and Restorative Sciences University of Pennsylvania Philadelphia Pennsylvania USA
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da Silva BTF, Trevelin LT, Schroeter AC, Willers AE, Cesar PF, Matos AB. Effect of silica coating and laser treatment on the flexural strength, surface characteristics, and bond strength of a dental zirconia. Eur J Oral Sci 2021; 129:e12754. [PMID: 33501718 DOI: 10.1111/eos.12754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 10/14/2020] [Accepted: 11/11/2020] [Indexed: 11/26/2022]
Abstract
This study investigated the effect of irradiation with an erbium-doped yttrium aluminium garnet (Er:YAG) laser and coating with silica on the surface characteristics, bond strength, and flexural strength of dental zirconia. Three hundred and forty-three standard zirconia specimens were created, and 49 were assigned to each of seven surface treatment groups: (i) no treatment; Er:YAG laser (80 mJ/2 Hz) with pulse widths of 50 μs (ii), 100 μs (iii), 300 μs (iv), or 600 μs (v); or tribochemical silica coating at the partially sintered stage (vi) or after sintering was complete (vii). All specimens were sintered after the surface treatments, except for the group in which specimens were sintered before treatment. The study outcomes were roughness, surface loss, microshear bond strength (μSBS), and biaxial flexural strength (BFS). Mean roughness and surface loss values were significantly higher in specimens from irradiated groups than in those from silica-coated groups. Regarding μSBS, after aging, specimens from all experimental groups presented very low and similar μSBS values, irrespective of the surface treatment. Silica coating after sintering yielded the highest BFS (1149.5 ± 167.6 MPa), while coating partially sintered specimens with silica resulted a BFS (826.9 ± 60.9 MPa) similar to that of the untreated control group (794.9 ± 101.7 MPa). Laser treatments, irrespective of pulse width used, significantly decreased the BFS. In the group treated with laser at 300 μs pulse width, specimens exhibited the lowest BFS value (514.1 ± 71.5 MPa). Adhesion to zirconia was not stable after aging, regardless of the surface treatment implemented.
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Affiliation(s)
- Beatriz Togoro Ferreira da Silva
- Department of Operative Dentistry, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil.,School of Dentistry, University of Santo Amaro, Sao Paulo, Brazil
| | - Livia Tosi Trevelin
- Department of Operative Dentistry, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil.,School of Dentistry, University of Sao Caetano do Sul, Sao Caetano do Sul, Brazil
| | | | - Amanda Endres Willers
- Department of Operative Dentistry, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil.,Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Paulo Francisco Cesar
- Department of Biomaterials and Oral Biology, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
| | - Adriana Bona Matos
- Department of Operative Dentistry, School of Dentistry, University of Sao Paulo, Sao Paulo, Brazil
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Cui Q, Wei M, Xiong Z, Hu S, Jiang J, Wang L, Cheng T, Wu X, Jiang H. Effects of Dentin Ablation by a Q-Switching Er:YSGG Laser with a High Pulse Repetition Rate. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 39:390-394. [PMID: 33297822 DOI: 10.1089/photob.2019.4797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective: The aim of the study was to evaluate the characteristics of dentin ablation with a high pulse repetition rate Q-switching 2.79 μm laser. Materials and methods: Dentin was ablated using a homemade Q-switching Er:YSGG laser with a high pulse repetition rate. Er:YSGG radiation was applied with a pulse energy of 1 or 10 mJ for 100 or 3 Hz pulse repetition rate, respectively. A scanning electron microscope (SEM) was used to observe the microstructures of dentin samples after ablation. Teeth were irradiated in vitro with a 100 Hz pulse repetition rate under two different modes: free running and Q-switching. A thermocouple was applied to measure the temperature in the pulp cavity during ablation. Results: A 100 or 3 Hz Q-switching laser was used to irradiate dentin for 30 and 100 sec, respectively. There was no significant difference in ablation mass loss between the two conditions. The SEM photographs showed more dentinal tubules and no damage in the ablation area when using the 100 Hz Q-switching laser. The temperature of the pulp cavity was maintained below 41°C when using a Q-switching laser. Conclusions: The Q-switching Er:YSGG laser with a high pulse repetition rate exhibited greater ablation efficiency and better morphology than the low pulse repetition rate Q-switching laser. The experimental results also demonstrate the significant advantage of the Q-switching laser over free-running lasers for protecting dental pulp tissue. The Q-switching Er:YSGG laser with a high pulse repetition rate is expected to become an efficient new dental tool.
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Affiliation(s)
- Qingzhe Cui
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Mengen Wei
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Zhengdong Xiong
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Shuwu Hu
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Jiantao Jiang
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Li Wang
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
| | - Tingqing Cheng
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China
| | - Xianyou Wu
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China
| | - Haihe Jiang
- Chinese Academy of Science, Anhui Province Key Laboratory of Medical Physics and Technology, Hefei Institutes of Physical Science, Center of Medical Physics and Technology, Hefei, China.,Science Island Branch of Graduate School, University of Science and Technology of China, Hefei, China
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