1
|
Ozturk D, Sen N, Isler S. Effect of non-thermal plasma treatment and resin cements on the bond strength of zirconia ceramics with different yttria concentrations. BIOMED ENG-BIOMED TE 2024; 69:249-255. [PMID: 38143322 DOI: 10.1515/bmt-2023-0336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 12/12/2023] [Indexed: 12/26/2023]
Abstract
OBJECTIVES To investigate the effect of different surface treatments and resin cements on the shear bond strength of zirconia ceramics with different yttria concentrations. METHODS Zirconia blocks characterized by different yttria concentrations [Vita YZ HT (HT), Vita YZ ST (ST) and Vita YZ XT (XT)] were used to prepare disc-shaped specimens (n=252). Specimens prepared to investigate shear bond strength (SBS), water contact angle and surface roughness (Ra) were divided into four subgroups; control (C), sandblasting (S), sandblasting + nonthermal plasma treatment (SNTP) and nonthermal plasma treatment (NTP). For SBS testing, specimens were further divided into two groups (n=108) according to the luting cement used [Panavia F2.0 (P) and Rely X U200 (R)]. The water contact angles were determined by sessile drop technique and Ra was analyzed with optical profilometer. SBS tests were performed in a universal testing machine at a crosshead speed of 0.5 mm/min. The data sets were statistically analyzed with two and three-way ANOVAs followed by post-hoc comparisons (α=0.05). RESULTS The water contact angle and Ra data were significantly affected by surface treatments. The mean Ra values of ST and XT were significantly lower than HT for the surface treatment groups of C and NTP. The SBS values were significantly different among the groups subjected to different surface treatments. The mean SBS values of surface treatment groups (S, SNTP and NTP) when cemented with R were significantly higher than the groups of C (p<0.05). CONCLUSIONS For the tested zirconia ceramics with different yttria concentrations, non-thermal plasma activation helps to improve SBS and is a promising tool in practical use.
Collapse
Affiliation(s)
- Deniz Ozturk
- Department of Prosthodontics, Health Science Institute, University of Istanbul, Istanbul, Türkiye
| | - Nazmiye Sen
- Department of Prosthodontics, Faculty of Dentistry, University of Istanbul, Istanbul, Türkiye
- Department of Prosthodontics, Faculty of Dentistry, Kent University, Istanbul, Türkiye
| | - Sabire Isler
- Department of Prosthodontics, Faculty of Dentistry, University of Istanbul, Istanbul, Türkiye
| |
Collapse
|
2
|
Tatiana R, Bérangère C, Prudence Felix T, Arnaud E, Fabio L, Jean R, Romain C, Hamdi J, Olivier E. Shear bond strength between standard or modified zirconia surfaces and two resin cements incorporating or not 10-MDP in their matrix. Dent Mater 2024; 40:370-378. [PMID: 38151431 DOI: 10.1016/j.dental.2023.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 12/19/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE This study aimed first to compare the shear bond strength between zirconia samples luted to enamel with a 10-MDP- containing resin cement (Panavia F2.0, Kuraray, Japan) and those luted with a resin cement using a separated 10-MDP monomer-containing bottle (Panavia V5, Kuraray, Japan). The second objective was to evaluate the bond stability after 150 days of aging in water, between enamel and zirconia ceramic surface enhanced with a glass-ceramic coating. MATERIALS AND METHODS 80 specimens composed of ceramic cylinders and enamel disks were obtained, within eight experimental groups (n = 10). 60 zirconia cylinders (Katana STML zirconia, Kuraray, Japan) were assigned to 3 groups according to their surface treatment: milled/sintered surface (ZRCT), tribochemical silica-coating (Cojet™ Sand, 3 M ESPE, Seefeld, Germany) (ZRTC), and glass-ceramic coating (IPS e.max Zirpress) (ZRZP). 20 cylinders of lithium disilicate had a milled surface (IPS e.max CAD, Ivoclar-Vivadent, Schaan, Liechtenstein) (ECAD). The cylinders of each group were further divided into two subgroups according to the resin cement used: Panavia F2.0 (-PF) and Panavia V5 (-PV). All specimens were stored in distilled water for 150 days before shear bond strength (SBS) tests. The fracture mode was analyzed, and data were statistically computed (two-way ANOVA, post hoc Tukey test, p < 0.05, SPSS, IBM, v26). RESULTS The ECAD-PF group recorded the highest SBS values (31.75 ± 2.2), and the ZRCT-PF group recorded the lowest values (5.59 ± 1.1). The two-way ANOVA test showed that ceramic surface treatment had a statistically significant effect on SBS (F (3,72) = 38.95, p < 0.001) while the type of ARC did not (F (1,72) = 2.40, p = 0.126). Tukey's post hoc test revealed no statistical difference between the ZRZP and the ZRTC or ECAD groups. CONCLUSION Within the limitations of this study, the PV resin achieved similar shear bond strength results between tribocoated zirconia and enamel compared to the one for glass-ceramic and enamel. Furthermore, a long-term durable bond, similar to the glass-ceramic one, was achieved with the heat pressed ceramic coated specimens. Thus, this new surface treatment could be recommended for anterior cantilever bridges for its fracture resistance and bonding ability.
Collapse
Affiliation(s)
- Roman Tatiana
- DDS, Dental School of Medicine, University of Strasbourg, France; Inserm U1121, Strasbourg, France
| | - Cournault Bérangère
- DDS, Dental School of Medicine, University of Strasbourg, France; Inserm U1121, Strasbourg, France
| | - Teyagirwa Prudence Felix
- DDS, Dental School of Medicine, University of Strasbourg, France; Inserm U1121, Strasbourg, France
| | - Erkel Arnaud
- DDS, Dental School of Medicine, University of Strasbourg, France
| | | | | | | | - Jmal Hamdi
- Icube Laboratory, UMR 7357, CNRS, Strasbourg, France
| | - Etienne Olivier
- DDS, Dental School of Medicine, University of Strasbourg, France; Inserm U1121, Strasbourg, France; Prosthodontics, University of Strasbourg, France.
| |
Collapse
|
3
|
Pyo SW, Park K, Daher R, Kwon HB, Han JS, Lee JH. Comparison of the clinical outcomes of resin-modified glass ionomer and self-adhesive resin cementations for full-coverage zirconia restorations. J Dent 2023:104558. [PMID: 37230241 DOI: 10.1016/j.jdent.2023.104558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 05/27/2023] Open
Abstract
OBJECTIVES Both resin-modified glass ionomer cement (RMGIC) and self-adhesive resin cement (SAC) may be suitable for cementation of full-coverage zirconia restorations. This retrospective study aimed to investigate the clinical outcomes of zirconia-based restorations cemented with RMGIC and compare them with those cemented with SAC. METHODS Cases of full-coverage zirconia-based restorations cemented with either RMGIC or SAC between March 2016 and February 2019 were evaluated in this study. The clinical outcomes of the restorations were analyzed according to the type of cement used. In addition, cumulative success and survival rates were evaluated according to the cement and abutment types. Non-inferiority, Kaplan-Meier, and Cox hazard tests were conducted (α=.05). RESULTS A total of 288 full-coverage zirconia-based restorations (natural teeth, 157; implant restorations, 131) were analyzed. Loss of retention occurred in only one case; a single-unit implant crown cemented with RMGIC, which decemented 4.25 years post-restoration. RMGIC was non-inferior to SAC in terms of loss of retention (<5%). For single-unit natural tooth restorations, the four-year success rates in the RMGIC and SAC groups were 100% and 95.65%, respectively (p=.122). For single-unit implant restorations, the four-year success rates in the RMGIC and SAC groups were 95.66% and 100%, respectively (p=.365). The hazard ratios of all the predictor variables, including cement type, were not significant (p>.05). CONCLUSIONS Cementation of full-coverage zirconia restorations of both natural teeth and implants using RMGIC and SAC yields satisfactory clinical outcomes. Furthermore, RMGIC is non-inferior to SAC in terms of cementation success. CLINICAL SIGNIFICANCE Cementation with RMGIC or SAC for full-coverage zirconia restorations has favorable clinical outcomes in both natural teeth and implants. Both RMGIC and SAC have advantages in the cementation of full-coverage zirconia restorations to abutments with favorable geometries.
Collapse
Affiliation(s)
- Se-Wook Pyo
- Clinical Assistant Professor, Department of Prosthodontics, Gangnam Severance Hospital, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Koungjin Park
- Graduate Student, Department of Prosthodontics, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - René Daher
- Senior Lecturer, Division of Cariology and Endodontology, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - Ho-Beom Kwon
- Dean and Professor, Department of Prosthodontics and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Jung-Suk Han
- Professor, Department of Prosthodontics and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Jae-Hyun Lee
- Professor, Department of Prosthodontics and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea.; Program Director and Assistant Professor, Department of Prosthodontics and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea..
| |
Collapse
|
4
|
Swarnakar A, Swarnakar AP, Pal HS, Tyagi S, Rawat P, Sharma A. Comparative Analysis of Three Surface Treatments on the Bond Strength of Zirconia to Resin-luting Agents: An In Vitro Study. J Contemp Dent Pract 2022; 23:883-888. [PMID: 37282994 DOI: 10.5005/jp-journals-10024-3389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
AIM To study the impact of three different surface treatments namely sandblasting, silane-coupling agent, and laser on the retention of zirconia prosthesis and bond strength of zirconia to a resin-luting agent. MATERIALS AND METHODS Sixty zirconia crowns were fabricated and were divided into four groups of 15 samples each on the basis of surface treatments. A control group with no surface treatment (group A), laser-treated (group B), treatment with silane-coupling agent (group C), and sandblasting with aluminium oxide (Al2O3) particles (group D). Testing was then carried out using a universal testing machine (0.5 mm/min crosshead speed). At a point where the crown got separated from the tooth, the reading in kilogram force (kgF) was recorded. The data were collected and analyzed statistically. RESULTS Group D produced the highest mean bond strength (17.5233 kgF) followed by group B (10.0067 kgF), group C (8.6907 kgF), and group A (3.3773 kgF). One-way ANOVA test showed a p-value more than 0.05, concluding no significant difference among the groups. Tukey's HSD post hoc test gave the p-value corresponding to the F-statistic of one-way ANOVA lower than 0.01 when intergroup comparison was done confirming a significant difference among the groups. CONCLUSION The bond strength significantly increased in the samples treated by sandblasting compared with those treated with laser and silane-coupling agents. CLINICAL SIGNIFICANCE The success of a zirconia prosthesis lies on its bonding with the tooth structure. Bond failure leads to loss of function and hence ends up in failure. Selection of the proper surface treatment will not only improve the bond strength but also amplify the retention of zirconia-based prosthesis, thereby reducing the failure of the final prosthesis. It also improves the longevity of the prosthesis and restores the lost function which is the basic clinical aim of a prosthodontic treatment.
Collapse
Affiliation(s)
- Arka Swarnakar
- Department of Prosthodontics and Crown & Bridge, Kothiwal Dental College & Research Centre, Moradabad, Uttar Pradesh, India, Phone: +91 7477540054, e-mail:
| | - Angana Pal Swarnakar
- Consultant Prosthodontist, Modern Dental Clinic, Khamarchandi, Hooghly, West Bengal, India
| | - Himadri Sekhar Pal
- Department of Prosthodontics and Crown & Bridge, KSD Jain Dental College and Hospital, Kolkata, West Bengal, India
| | - Shivani Tyagi
- Dental Square, Gajraula, Amroha, Uttar Pradesh, India
| | - Pragati Rawat
- Department of Prosthodontics and Crown & Bridge, Subharti Dental College, Meerut, Uttar Pradesh, India
| | - Abhinav Sharma
- Department of Oral Medicine and Radiology, Subharti Dental College, Meerut, Uttar Pradesh, India
| |
Collapse
|
5
|
Adhesive Cementation of Zirconia Based Ceramics-Surface Modification Methods Literature Review. COATINGS 2022. [DOI: 10.3390/coatings12081067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Introduction: The conditioning procedures for glass-based ceramic restorations before adhesive cementation are generally recognized. In the case of polycrystalline ceramics, which include zirconium oxide, there is still no standardized protocol. The aim of this work was to present conditioning methods of the cementation surface of zirconium oxide fixed dentures. The new generation high translucency zirconia has been also considered. Material and method: The following keywords for the PUBMED and EMBASE databases were used: zirconium oxide, zirconium oxide with increased translucency, bond strength, bending strength, surface treatment. The inclusion criteria were original papers in English published between 2015–2021. Results: Out of 1537 publications, 53 articles were selected for the study, covering methods of conditioning zirconium ceramics, including new materials with increased translucency. These procedures were divided into 5 main groups. Summary: Due to the widespread use of zirconia ceramics and the introduction of new zirconia-based materials, the use of a predictable and standardized cementation protocol is one of the most important factors contributing to the long-term clinical success of prosthetic restorations. Therefore, the research showed differences in the properties of the covered materials after conditioning. It suggests the need to create separate conditioning protocols for highly translucent and traditional zirconia.
Collapse
|
6
|
Souza-Filho CBD, Moris ICM, Colucci V, Faria ACL, Gomes ÉA. Is the Er:YAG laser affect the surface characteristics and bond strength of Y-TZP? Braz Dent J 2022; 32:83-92. [PMID: 35019023 DOI: 10.1590/0103-6440202104739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Accepted: 10/28/2021] [Indexed: 11/21/2022] Open
Abstract
This study evaluated the surface characteristics and bond strength of Y-TZP treated with Er:YAG laser at different focal distances. 120 Y-TZP blocks were divided into five groups (n=24), according to the surface treatment: no treatment (C-); sandblasting with silica-coated aluminum oxide particles (C+); and Er:YAG laser application at focal distances of 1mm (Er:YAG-1), 4mm (Er:YAG-4), and 7mm (Er:YAG-7). Surface characteristics were analyzed using Vickers microhardness, confocal laser microscope, scanning electron microscopy (SEM), and X-ray diffractometer (XRD). For the bond strength test, 100 Y-TZP blocks were subdivided into two subgroups (n=10), according to the resin cement used: with (MDP+) or without 10-methacryloyloxydecyl dihydrogen phosphate (MDP-). The Vickers microhardness and surface roughness were analyzed by one-way ANOVA and bond strength by two-way ANOVA and Tukey's test for both (α=0.05). Vickers microhardness differences were not observed between the groups (p>0.05); C+ showed higher surface roughness values. SEM images showed micromorphological differences between the groups. The XRD data detected tetragonal crystals for C- and, for the other groups, tetragonal and monoclinic peaks. For bond strength, no statistically difference significance were observed among the cements with or without MDP (p>0.05) but showed significant difference between the surface treatments (C+ > C- = Er:YAG1 > Er:YAG4 = Er:YAG7) (p<0.05). Suggested that the Er:YAG laser cannot replace conventional treatment with aluminum oxide particles and the presence of MDP in the resin cement had no influence on the bond strength.
Collapse
Affiliation(s)
| | - Izabela C M Moris
- School of Dentistry, University of Ribeirão Preto (UNAERP), Ribeirão Preto, São Paulo, Brazil
| | - Vivian Colucci
- School of Dentistry, University of Ribeirão Preto (UNAERP), Ribeirão Preto, São Paulo, Brazil
| | - Adriana Cláudia Lapria Faria
- Department of Dental Materials and Prosthodontics, School of Dentistry of Ribeirão Preto, University of São Paulo (FORP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Érica A Gomes
- School of Dentistry, University of Ribeirão Preto (UNAERP), Ribeirão Preto, São Paulo, Brazil
| |
Collapse
|
7
|
Eldafrawy M, Bekaert S, Nguyen JF, Sadoun M, Mainjot A. Bonding properties of third-generation zirconia CAD-CAM blocks for monolithic restorations to composite and resin-modified glass-ionomer cements. J Prosthodont Res 2021; 66:466-475. [PMID: 34853211 DOI: 10.2186/jpr.jpr_d_21_00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE To compare the interfacial fracture toughness (IFT) of two MDP-based composite cements and a resin-modified glass-ionomer cement (RMGIC) with third-generation zirconia CAD-CAM restorations using two different airborne-particle abrasion (AB) pressures. METHODS Blocks were cut into prisms (n=60), split and sintered to the desired equilateral half prisms. Half-prisms were divided into two groups for AB at 0.5 or 2.5 bar with 50 µm Al2O3 particles. Each group was then further divided into 3 subgroups, and half-prisms were bonded to their counterparts with Panavia V5 (V5), Panavia Self Adhesive Cement Plus (SA), or RMGIC Fuji Plus (n=10/group). The IFT was determined using the Notchless Triangular Prism test in a water bath at 36°C after thermocycling (10,000 cycles). Surface roughness and SEM analyses were performed for representative zirconia samples after AB, and composite cements were tested for flexural strength and wettability. RESULTS SA (2.5 bar) showed a significantly higher IFT. The 3 other groups with SA and V5 showed no significant difference in their IFT values regardless of the AB pressure (1-way ANOVA). Weibull analysis of SA was higher than V5. All RMGIC samples debonded while thermocycling, and were, therefore, not included in the statistical analysis. Surface roughness increased with increasing AB pressure, and both cements showed similar flexural strength values and good wettability. CONCLUSION Contrary to RMGIC, composite cements show high performance with zirconia after AB. Increasing AB pressure enhances the micromechanical retention of composite cement. Future perspectives should include study of the effect of AB pressure on zirconia surface properties.
Collapse
Affiliation(s)
- Maher Eldafrawy
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium
| | - Sandrine Bekaert
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium.,Department of Fixed Prosthodontics, Institute of Dentistry, University of Liège Hospital (CHU), Liège, Belgium
| | - Jean-François Nguyen
- UFR d'Odontologie, Université de Paris, Paris, France.,PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, Paris, France
| | | | - Amélie Mainjot
- Dental Biomaterials Research Unit (d-BRU), Institute of Dentistry, University of Liège (ULiège), Liège, Belgium.,Department of Fixed Prosthodontics, Institute of Dentistry, University of Liège Hospital (CHU), Liège, Belgium
| |
Collapse
|
8
|
Oddbratt E, Hua L, Chrcanovic BR, Papia E. Bond strength of zirconia- or polymer-based copings cemented on implant-supported titanium bases - an in vitro study. Biomater Investig Dent 2021; 8:129-136. [PMID: 34532710 PMCID: PMC8439223 DOI: 10.1080/26415275.2021.1974301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Purpose To evaluate the bond strength between polymer-based copings and zirconia copings as positive control, cemented on implant-supported titanium bases with different adhesive cement systems. Moreover, to evaluate if airborne-particle abrasion of polymethylmetacrylate (PMMA) would enhance the bond strength. Methods Four groups of different materials were used to fabricate the copings, 30 in each group: airborne-particle abraded milled zirconia (TAZirconia, control group), milled PMMA (TPMMA), airborne-particle abraded milled PMMA (TAPMMA) and 3 D-printed micro filled hybrid resin (TAMFH). Each group of copings was cemented on titanium bases by three different adhesive cement systems, 10 each: Multilink Hybrid Abutment, Panavia V5, RelyX Ultimate. The specimens were stored dry at room temperature for 24 h, subjected to thermocycling for 5000 cycles followed by evaluating the bond strength by tensile strength test. Results TPMMA and TAPMMA cemented with Multilink Hybrid Abutment showed statistically significant lower bond strength in comparison to TAZirconia and TAMFH. No difference was observed between the latter two. TPMMA, TAPMMA and TAMFH had a statistically significant lower bond strength compared to the control group when cemented with Panavia V5. TPMMA and TAPMMA cemented with Rely X Ultimate showed statistically significant lower bond strength in comparison to the control group. Conclusion Almost all experimental groups, except 3 D-printed MFH, performed inferior than the positive control group where the highest bond strength was reported for the cementation of zirconia copings cemented with Panavia V5 or Rely X Ultimate. Airborne-particle abrasion did not improve the bond strength of the PMMA, except when Multilink Hybrid Abutment was used.
Collapse
Affiliation(s)
- Eliann Oddbratt
- Department of Materials Science and Technology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Lisa Hua
- Department of Materials Science and Technology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Bruno R Chrcanovic
- Department of Prosthodontics, Faculty of Odontology, Malmö University, Malmö, Sweden
| | - Evaggelia Papia
- Department of Materials Science and Technology, Faculty of Odontology, Malmö University, Malmö, Sweden
| |
Collapse
|
9
|
Jeon J, Chung SH, Um SH, Rhee SH. Effect of grain size of dental zirconia on shear bond strength of composite resin cement. J Appl Biomater Funct Mater 2020; 18:2280800020978138. [PMID: 33371771 DOI: 10.1177/2280800020978138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The effect of grain size of dental zirconia on the shear bond strength of composite resin cement was newly studied. Disc-shaped dental zirconia with small (sample S) and large (sample L) grains were made by sintering of pre-sintered dental zirconia at 1450°C for 0.5 h and 40 h, respectively. After the sintering, the average grain size of sample S was 1.37 ± 0.15 µm, while that of sample L was 3.74 ± 0.50 µm. The sintered discs were successively polished with different grades of diamond and alumina slurries. The interfacial free energies were 63.5 ± 4.2 dyne/cm for sample S and 52.1 ± 5.5 dyne/cm for sample L. Stainless steel cylinders, previously sandblasted with 50 µm alumina powder, were bonded to the zirconia discs using composite resin cement. Next, samples were kept in an oven for 7 d at 36.5°C. The shear bond strength of sample S was 23.0 ± 4.5 MPa while that of sample L was 17.5 ± 4.6 MPa. After the fracture, the areal % values of composite resin cement remaining on the zirconia surfaces were 89.7 ± 5.9% for sample S and 61.6 ± 5.5% for sample L. The results suggest that grain size reduction has a potential to enhance the degree of bonding between a composite resin cement and a dental zirconia due to the increase of interfacial free energy.
Collapse
Affiliation(s)
- JiHwan Jeon
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Shin Hye Chung
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Seung-Hoon Um
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| | - Sang-Hoon Rhee
- Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, South Korea
| |
Collapse
|
10
|
Kwon SM, Min BK, Kim YK, Kwon TY. Influence of Sandblasting Particle Size and Pressure on Resin Bonding Durability to Zirconia: A Residual Stress Study. MATERIALS 2020; 13:ma13245629. [PMID: 33321769 PMCID: PMC7764573 DOI: 10.3390/ma13245629] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/03/2020] [Accepted: 12/08/2020] [Indexed: 11/16/2022]
Abstract
The influence of residual stress induced by sandblasting the zirconia ceramic surface on the resin bonding to the ceramic is still unclear. The effect of four different sandblasting conditions (with 50 and 110 μm alumina at pressures of 0.2 and 0.4 MPa) on the bonding of adhesive resin cement (Panavia F 2.0) to zirconia (Cercon® ht) was investigated in terms of residual stress. The surface roughness and water contact angle of the zirconia surfaces were measured. The tetragonal-to-monoclinic (t-m) phase transformation and residual stresses (sin2ψ method) were studied by X-ray diffraction. The resin-bonded zirconia specimens were subjected to shear bond strength (SBS) tests before and after thermocycling (10,000 and 30,000 cycles) (n = 10). As the particle size and pressure increased, the roughness gradually and significantly increased (p = 0.023). However, there were no significant differences in roughness-corrected contact angle among all the sandblasted groups (p > 0.05). As the particle size and pressure increased, the m-phase/(t-phase + m-phase) ratios and compressive residual stresses gradually increased. After thermocycling, there were no significant differences in SBS among the sandblasted zirconia groups (p > 0.05). In conclusion, increased surface roughness and residual stress do not directly affect the resin bonding durability.
Collapse
Affiliation(s)
- Sung-Min Kwon
- Department of Medical & Biological Engineering, Graduate School, Kyungpook National University, 2177 Dalgubeol-daero, Jung-gu, Daegu 41940, Korea;
| | - Bong Ki Min
- Center for Research Facilities, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Korea
- Correspondence: (B.K.M.); (T.-Y.K.); Tel.: +82-53-810-1835 (B.K.M.); +82-53-660-6891 (T.-Y.K.)
| | - Young Kyung Kim
- Department of Conservative Dentistry, School of Dentistry, Kyungpook National University, 2177 Dalgubeol-daero, Jung-gu, Daegu 41940, Korea;
| | - Tae-Yub Kwon
- Department of Dental Biomaterials, School of Dentistry and Institute for Biomaterials Research & Development, Kyungpook National University, 2177 Dalgubeol-daero, Jung-gu, Daegu 41940, Korea
- Correspondence: (B.K.M.); (T.-Y.K.); Tel.: +82-53-810-1835 (B.K.M.); +82-53-660-6891 (T.-Y.K.)
| |
Collapse
|
11
|
Maciel LC, Amaral M, Queiroz DA, Baroudi K, Silva-Concílio LR. The effect of repeated surface treatment of zirconia on its bond strength to resin cement. J Adv Prosthodont 2020; 12:291-298. [PMID: 33149850 PMCID: PMC7604241 DOI: 10.4047/jap.2020.12.5.291] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/15/2020] [Accepted: 07/28/2020] [Indexed: 11/29/2022] Open
Abstract
PURPOSE The aim of this study is to evaluate the influence of repeated surface treatments on wettability and surface roughness for zirconia surface and bond strength of zirconia-based ceramics to resin cement. MATERIALS AND METHODS Seventy blocks (10 × 10 × 3 mm) of zirconia-based ceramics were fabricated and divided into two groups according to the surface treatments: (A) 110 µm Al2O3 airborne-particle abrasion and (R) 110 µm silica modified Al2O3 airborne-particle abrasion. At stage 2, each group was subdivided into 5 groups according to the surface retreatments: (a) 110 µm Al2O3 airborne-particle abrasion, (r) 110 µm silica modified Al2O3 airborne-particle abrasion, (D) diamond bur, (Da) diamond bur + 110 µm Al2O3 airborne-particle abrasion, and (Dr) diamond bur + 110 µm silica modified Al2O3 airborne-particle abrasion. Cylinders of self-adhesive resin cement were cemented onto each treated ceramic surface and subjected to micro-shear bond strength test. Additional specimens were prepared for roughness and wettability analyses. The data were subjected to t-test and One-way ANOVA followed by Tukey's post hoc test (α=.05). RESULTS At stage 1, group R presented higher bond strength values than group A (P=.000). There was a statistically significant increase of bond strength at stage 2 for group A (P=.003). The diamond bur influenced the surface roughness, increasing the values (P=.023). Group R provided better wettability. Regardless of the applied surface treatment, most of failures were adhesive. CONCLUSION The combination of application and reapplication of Rocatec Plus showed the best results of bond strength. Surface retreatment and recementation might be an indicated clinical strategy.
Collapse
Affiliation(s)
| | - Marina Amaral
- Department of Dental Prosthesis, School of Dentistry, University of Taubaté, Taubaté, Brazil
| | - Daher Antonio Queiroz
- Division of Restorative and Prosthetic Dentistry, The Ohio State University College of Dentistry, Columbus, OH, USA
| | - Kusai Baroudi
- Postgraduate Program, School of Dentistry, University of Taubaté, Taubaté, Brazil
| | | |
Collapse
|
12
|
Liu X, Jiang X, Xu T, Zhao Q, Zhu S. Investigating the shear bond strength of five resin-based luting agents to zirconia ceramics. J Oral Sci 2020; 62:84-88. [PMID: 31996530 DOI: 10.2334/josnusd.18-0480] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The present study investigated the bond strength and aging resistance performance of five resin-based luting agents to zirconia. A total of 100 large blocks (10.0 mm × 10.0 mm × 2.5 mm) and 100 small blocks (4.0 mm × 4.0 mm × 2.5 mm) of zirconia were airborne-particle abraded and randomly divided into five groups: (RelyX Ultimate [RUl]; Panavia F [PF]; Clearfil SA Luting [SAC]; Multilink Speed [MS]; and RelyX Unicem [RUn]). The small blocks were bonded to the large blocks using the resin-based luting agents. Shear bond strengths (SBS) and failure mode were determined before and after 5,000 thermocycles. After being stored in water for 24 h, the SBS were MS > PF > RUl > SAC > RUn (P < 0.05). After 5,000 thermocycles, the SBS were MS > SAC ≈ RUl > PF ≈ RUn (P < 0.05); the SBS of the PF, MS, and RUn groups were lower than that before 5,000 thermocycles (P < 0.01). Adhesive failure, cohesive failure, or mixed failure occurred in the specimens. In general, Clearfil SA Luting, a self-adhesive resin-based luting agent containing 10-methacryloxy decyl diphosphate, had good initial and durable SBS to zirconia and was a better adhesive.
Collapse
Affiliation(s)
- Xiuju Liu
- Department of Prosthodontics, School and Hospital of Stomatology, Jilin University
| | - Xue Jiang
- Department of Prosthodontics, School and Hospital of Stomatology, Jilin University
| | - Tong Xu
- Department of Prosthodontics, School and Hospital of Stomatology, Jilin University
| | - Qi Zhao
- Department of Prosthodontics, School and Hospital of Stomatology, Jilin University
| | - Song Zhu
- Department of Prosthodontics, School and Hospital of Stomatology, Jilin University
| |
Collapse
|
13
|
Scaminaci Russo D, Cinelli F, Sarti C, Giachetti L. Adhesion to Zirconia: A Systematic Review of Current Conditioning Methods and Bonding Materials. Dent J (Basel) 2019; 7:dj7030074. [PMID: 31374820 PMCID: PMC6784479 DOI: 10.3390/dj7030074] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 06/13/2019] [Accepted: 07/06/2019] [Indexed: 11/16/2022] Open
Abstract
Background. Reliable bonding between resin composite cements and high strength ceramics is difficult to achieve because of their chemical inertness and lack of silica content that makes etching impossible. The purpose of this review is to classify and analyze the existing methods and materials suggested to improve the adhesion of zirconia to dental substrate by using composite resins, in order to explore current trends in surface conditioning methods with predictable results. Methods. The current literature, examining the bond strength of zirconia ceramics, and including in vitro studies, clinical studies, and a systematic review, was analyzed. The research in the literature was carried out using PubMed and Cochrane Library databases, only papers in English, published online from 2013 to 2018. The following keywords and their combinations were used: Zirconia, 3Y-TZP, Adhesion, Adhesive cementation, Bonding, Resin, Composite resin, Composite material, Dentin, Enamel. Results. Research, in PubMed and Cochrane Library databases, provided 390 titles with abstracts. From these, a total of 93 publications were chosen for analysis. After a full text evaluation, seven articles were discarded. Therefore, the final sample was 86, including in vitro, clinical studies, and one systematic review. Various adhesive techniques with different testing methods were examined. Conclusions. Airborne-particle abrasion and tribo-chemical silica coating are the pre-treatment methods with more evidence in the literature. Increased adhesion could be expected after physico-chemical conditioning of zirconia. Surface contamination has a negative effect on adhesion. There is no evidence to support a universal adhesion protocol.
Collapse
Affiliation(s)
- Daniele Scaminaci Russo
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Francesca Cinelli
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Chiara Sarti
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy
| | - Luca Giachetti
- Department of Experimental and Clinical Medicine-Unit of Dentistry, University of Florence, Via del Ponte di Mezzo, 48-50127 Firenze, Italy.
| |
Collapse
|
14
|
Ruales-Carrera E, Cesar PF, Henriques B, Fredel MC, Özcan M, Volpato CAM. Adhesion behavior of conventional and high-translucent zirconia: Effect of surface conditioning methods and aging using an experimental methodology. J ESTHET RESTOR DENT 2019; 31:388-397. [PMID: 31099974 DOI: 10.1111/jerd.12490] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/22/2019] [Accepted: 05/02/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Evaluate the adhesive behavior of conventional and high-translucent zirconia after surface conditioning and hydrothermal aging. MATERIALS AND METHODS Conventional (ZrC) and high-translucent zirconia (ZrT) specimens were divided into six groups: without surface treatment (ZrC and ZrT), air-borne particle abrasion with 50-μm Al2 O3 sized particles (ZrC-AO and ZrT-AO), and tribochemical treatment with 30-μm silica modified Al2 O3 sized particles (ZrC-T and ZrT-T). Zirconia specimens were treated using an MDP-containing universal adhesive and bonded to two resins blocks with an adhesive luting cement. Microbar specimens with cross-sectioned areas of 1 mm2 were achieved. Half of the microbars were subjected to hydrothermal aging. Bond strength was evaluated by microtensile bond strength test and statistically evaluated by the Weibull analysis. RESULTS Roughness of the ZrC-AO and ZrT-AO groups were statistically higher. Bond strength analysis revealed higher bond strength for ZrC-AO and ZrC-T groups compared to ZrT-AO and ZrT-T, respectively. Mixed failure was the most frequent for the mechanically treated groups, while no cohesive failures were obtained. CONCLUSION Lower values of bond strength were obtained for the mechanically treated high-translucent zirconia groups when compared to their conventional zirconia counterparts. Mechanical surface treatment significantly improved the bond strength to conventional and high-translucent zirconia. CLINICAL SIGNIFICANCE Mechanical surface treatment (air-borne particle abrasion or tribochemical treatment) associated with the use of universal adhesives containing MDP could provide a durable bonding to conventional and high-translucent zirconia.
Collapse
Affiliation(s)
- Edwin Ruales-Carrera
- Department of Dentistry, Center for Education and Research in Dental Implants (CEPID), Federal University of Santa Catarina, Florianópolis, Brazil
| | - Paulo F Cesar
- Department of Dental Materials and Oral Biology, University of São Paulo, São Paulo, Brazil
| | - Bruno Henriques
- Ceramic and Composite Materials Research Laboratory (CERMAT), Federal University of Santa Catarina, Florianópolis, Brazil
| | - Márcio C Fredel
- Ceramic and Composite Materials Research Laboratory (CERMAT), Federal University of Santa Catarina, Florianópolis, Brazil
| | - Mutlu Özcan
- Dental Materials Unit, Center for Dental and Oral Medicine, Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, University of Zurich, Zurich, Switzerland
| | - Claudia A M Volpato
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| |
Collapse
|
15
|
Flores-Ferreyra BI, Scougall-Vilchis RJ, Velazquez-Enriquez U, Garcia-Contreras R, Aguillon-Sol L, Olea-Mejia OF. Effect of airborne-particle abrasion and, acid and alkaline treatments on shear bond strength of dental zirconia. Dent Mater J 2018; 38:182-188. [PMID: 30381637 DOI: 10.4012/dmj.2018-078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The surface roughness, morphology and shear bond strength (SBS) of dental zirconia using three different surface treatment techniques were evaluated. Three groups of sintered zirconia blocks were treated as follow, 1) Airborne-particle abrasion (APA) group (G1-APA), 50-µm Al2O3; 2) APA and 9% hydrofluoric acid etching (G2-HF); 3) APA and Sodium Hydroxide (G3-NaOH). The specimens were evaluated for roughness [atomic force microscope (AFM)], morphology [Scanning Electron Microscope (SEM)] and for SBS in the universal testing machine. The AFM revealed changes in the roughness after the surface treatments, however there was not Ra difference between groups, SEM analysis revealed changes in surface morphology for all surface treated specimens. For SBS, significant difference was found between G1-APA=8.4±2.7 MPa and G2-HF=3.3±0.6 MPa (p<0.05) and G2-HF and G3-NaOH=9.0±3.0 MPa (p<0.05). The main fracture mode was mixed failure (63%) for G1-APA and G3-NaOH groups. G2-HF showed 100% adhesive failure. SBS was improved with NaOH, however application of HF significantly decreased SBS.
Collapse
Affiliation(s)
- Blanca I Flores-Ferreyra
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Rogelio J Scougall-Vilchis
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Ulises Velazquez-Enriquez
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Rene Garcia-Contreras
- Interdisciplinary Research Laboratory Nanostructures and Biomaterials National School of Higher Education (ENES) Leon Unit, National Autonomous University of Mexico
| | - Lizzeth Aguillon-Sol
- Dental Research Center "Dr. Keisaburo Miyata", School of Dentistry, Autonomous University of Mexico State
| | - Oscar F Olea-Mejia
- Research Center for Sustainable Chemistry Autonomus University of Mexico State
| |
Collapse
|
16
|
Tsuyuki Y, Sato T, Nomoto S, Yotsuya M, Koshihara T, Takemoto S, Yoshinari M. Effect of occlusal groove on abutment, crown thickness, and cement-type on fracture load of monolithic zirconia crowns. Dent Mater J 2018; 37:843-850. [PMID: 29962415 DOI: 10.4012/dmj.2017-350] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of this study was to investigate the effects of occlusal form of abutment, occlusal thickness of monolithic zirconia crowns (MZC), and cement type on the fracture load of MZC. Abutments were prepared with 2 types of occlusal forms: groove-type and flat-type. These were designed so that thickness at the central fissure region of MZC was 0.3, 0.5, or 0.7 mm. Glass ionomer cement and resin cement were used to lute MZC to their corresponding abutment. Fracture load was determined using a universal testing machine. As a result, groove-type abutment had lower fracture load compared to flat-type abutment; however, the decline in strength was smaller when resin cement was used. Additionally, specimens with larger occlusal thickness had greater fracture load regardless of groove or cement-type. The fracture of MZC occurred on the central fissure region of MZC except for 0.7 mm groove-type MZC luted with resin cement.
Collapse
Affiliation(s)
- Yu Tsuyuki
- Department of Fixed Prosthodontics, Tokyo Dental College.,Oral Health Center, Tokyo Dental College
| | - Toru Sato
- Department of Fixed Prosthodontics, Tokyo Dental College
| | | | - Mamoru Yotsuya
- Department of Fixed Prosthodontics, Tokyo Dental College
| | | | - Shinji Takemoto
- Oral Health Center, Tokyo Dental College.,Department of Dental Materials Science, Tokyo Dental College.,Deparment of Biomedical Engineering, Iwate Medical University
| | - Masao Yoshinari
- Department of Dental Materials Science, Tokyo Dental College
| |
Collapse
|
17
|
Roughness, surface energy, and superficial damages of CAD/CAM materials after surface treatment. Clin Oral Investig 2018; 22:2787-2797. [DOI: 10.1007/s00784-018-2365-6] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 01/24/2018] [Indexed: 01/08/2023]
|
18
|
Skienhe H, Habchi R, Ounsi HF, Ferrari M, Salameh Z. Structural and Morphological Evaluation of Presintered Zirconia following Different Surface Treatments. J Contemp Dent Pract 2018; 19:156-165. [PMID: 29422464 DOI: 10.5005/jp-journals-10024-2230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIM The aim of this study was to evaluate the effect of different surface treatments on roughness, grain size, and phase transformation of presintered zirconia. MATERIALS AND METHODS Surface treatments included airborne particle abrasion (APA) before and after sintering with different particles shape, size, and pressure (50 μm Al2O3, 50 μm glass beads, and ceramic powder). Thirty-five square-shaped presin-tered yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP) ceramic slabs (Zenostar ZR bridge, Wieland) were prepared (4 mm height × 10 mm width × 10 mm length) and polished with silicon carbide grit papers #800, 1000, 1200, 1500, and 2000 to ensure identical initial roughness. Specimens were divided into five groups according to surface treatment: group I (control): no surface treatment; group II: APA 50 μm Al2O3 after sintering; group III: APA 50 μm Al2O3 particles before sintering; group IV: APA 50 μm glass bead particles before sintering; and group V: APA ceramic powder before sintering. Specimens were analyzed using scanning electron microscopy (SEM), atomic force microscopy (AFM), X-ray diffraction (XRD) analyses, and tested for shear bond strength (SBS). Data were statistically analyzed using one-way analysis of variance (ANOVA) followed by post hoc tests for multiple comparisons Tukey's test (a > 0.05). RESULTS Air abrasion before sintering significantly increased the surface roughness when compared with groups I and III. The highest tetragonal to monoclinic (t-m) phase transformation (0.07%) was observed in group III, and a reverse transformation was observed in presintered groups (0.01%). Regarding bond strength, there was a significant difference between APA procedures pre- and postsintering. CONCLUSION Air abrasion before sintering is a valuable method for increasing surface roughness and SBS. The abrasive particles' size and type used before sintering had a little effect on phase transformation. CLINICAL SIGNIFICANCE Air abrasion before sintering could be supposed to be an alternative surface treatment method to air abrasion after sintering.
Collapse
Affiliation(s)
- Hasan Skienhe
- Doctoral School of Science and Technology, Lebanese University, Beirut, Lebanon, Phone: +9613600991, e-mail:
| | - Roland Habchi
- Department of Nanosciences and Nanotechnology. Campus Pierre Gemayel, Fanar, Lebanese University
| | - Hani F Ounsi
- Department of Restorative Dentistry and Endodontics, Faculty of Dental Medicine Lebanese University, Beirut, Lebanon Department of Restorative Dentistry and Endodontics, Faculty of Dental Medicine, University of Siena, Siena, Italy
| | - Marco Ferrari
- Department of Prosthodontics and Dental Materials, School of Dental Medicine, University of Siena, Siena, Italy
| | - Ziad Salameh
- Department of Research, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
| |
Collapse
|
19
|
Martins SB, Abi-Rached FDO, Adabo GL, Baldissara P, Fonseca RG. Influence of Particle and Air-Abrasion Moment on Y-TZP Surface Characterization and Bond Strength. J Prosthodont 2017; 28:e271-e278. [PMID: 29235196 DOI: 10.1111/jopr.12718] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2017] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To evaluate the influence of particle and air-abrasion on the surface characterization and shear bond strength (SBS) of a Y-TZP ceramic with a resin cement. MATERIALS AND METHODS Y-TZP specimens were air-abraded with 50 μm alumina particles; 120 μm alumina particles; 30 μm silica-coated alumina particles (Rocatec Soft); 110 μm silica-coated alumina particles (Rocatec Plus). Air-abrasion was performed before (BS); after (AS); before and after (BAS) zirconia sintering. Surface characterization included roughness (n = 10), wettability (n = 10), morphology (n = 2), and elemental composition (n = 2). For SBS (n = 11), composite resin discs were bonded to the air-abraded and silane-treated zirconia surface, with the resin cement RelyX ARC. Failure mode was determined. Roughness, wettability, and SBS data were analyzed by two-way ANOVA with pairwise interaction and Tukey's test (α = 0.05). RESULTS Air-abrasion performed with coarser particles at BS and BAS moments provided the highest roughness values, while the lowest roughness values were observed with particles combined with AS moment (p < 0.01). Rocatec Plus provided lower contact angle than the 120 μm alumina particles (p = 0.013), and BAS exhibited lower contact angle than BS (p = 0.002). The combinations 120 μm/BS and the silica-coated alumina particles/AS and /BAS showed the highest SBS (p < 0.05). The combination of each particle/BAS was statistically similar to the same particle/AS. Failure mode was 100% adhesive for all groups. The interaction particle size/air-abrasion moment determined the morphological pattern. Silicon was observed only in the Rocatec groups. CONCLUSIONS Roughness was influenced by the particle size and was higher when the zirconia was air-abraded in its green stage. The particle composition played an important role in the wettability and both studied air-abrasion moments provided similar wettability than the one in which air-abrasion is usually performed. The highest SBS values were observed in the three moments, by using certain particles for each moment.
Collapse
Affiliation(s)
- Samira Branco Martins
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP, Araraquara, São Paulo, Brazil
| | | | - Gelson Luis Adabo
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP, Araraquara, São Paulo, Brazil
| | - Paolo Baldissara
- Department of Oral Sciences, Alma Mater Studiorum University of Bologna, Italy
| | - Renata Garcia Fonseca
- Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP, Araraquara, São Paulo, Brazil
| |
Collapse
|
20
|
Byeon SM, Lee MH, Bae TS. Shear Bond Strength of Al₂O₃ Sandblasted Y-TZP Ceramic to the Orthodontic Metal Bracket. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E148. [PMID: 28772508 PMCID: PMC5459165 DOI: 10.3390/ma10020148] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 01/30/2017] [Accepted: 02/05/2017] [Indexed: 12/04/2022]
Abstract
As the proportion of adult orthodontic treatment increases, mainly for aesthetic reasons, orthodontic brackets are directly attached to yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) restorations. This, study analyzed the shear bond strength (SBS) between various surface treated Y-TZP and orthodontic metal brackets. The Y-TZP specimens were conditioned by 110 μm Al₂O₃ sandblasting, or sandblasting followed by coating with one of the primers (silane, MDP, or an MDP-containing silane primer). After surface treatment, the orthodontic metal bracket was bonded to the specimen using a resin cement, and then 24 h storage in water and thermal cycling (5000 cycles, 5-55 °C), SBS was measured. Surface roughness was analyzed for surface morphology, and X-ray photoelectron spectroscopy (XPS) was employed for characterization of the chemical bond between the Y-TZP and the MDP-based primers (MDP, MDP containing silane primer). It was found that after surface treatment, the surface roughness of all groups increased. The groups treated with 110 μm Al₂O₃ sandblasting and MDP, or MDP-containing silane primer showed the highest SBS values, at 11.92 ± 1.51 MPa and 13.36 ± 2.31 MPa, respectively. The SBS values significantly decreased in all the groups after thermal cycling. Results from XPS analysis demonstrated the presence of chemical bonds between Y-TZP and MDP. Thus, the application of MDP-based primers after Al₂O₃ sandblasting enhances the resin bond strength between Y-TZP and the orthodontic metal bracket. However, bonding durability of all the surface-treated groups decreased after thermal cycling.
Collapse
Affiliation(s)
- Seon Mi Byeon
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Chonbuk National University, 567 Baeckje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea.
| | - Min Ho Lee
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Chonbuk National University, 567 Baeckje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea.
| | - Tae Sung Bae
- Department of Dental Biomaterials and Institute of Biodegradable Material, Institute of Oral Bioscience and BK21 Plus Project, School of Dentistry, Chonbuk National University, 567 Baeckje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea.
- Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, 20 Geonji-ro, Deokjin-gu, Jeonju-si, Jeollabuk-do 54907, Korea.
| |
Collapse
|
21
|
Surface analysis and shear bond strength of zirconia on resin cements after non-thermal plasma treatment and/or primer application for metallic alloys. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 72:284-292. [PMID: 28024588 DOI: 10.1016/j.msec.2016.11.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 10/06/2016] [Accepted: 11/08/2016] [Indexed: 01/05/2023]
Abstract
There is no established protocol for bonding zirconia (Y-TZP) with resin cements. Non-thermal plasma (NTP) may be an alternative for the clinical problems related to adhesion. The purpose of the present study was to characterize the surface of Y-TZP exposed to methane (CH4) NTP or coated with a layer of primer for metal alloys and the association between the two methods and to evaluate the effect of NTP treatment on bond strength between Y-TZP and two resin cements. A total of 235 Y-TZP discs (8×2mm) were distributed into five groups: Co (no surface treatment), Pr (primer), NTP (methane plasma), Pr+NTP and NTP+Pr. The effect of the treatment type on the surface free energy, morphology, topography and chemical composition of the Y-TZP discs was investigated. The discs were cemented to composite resin substrates using Panavia F2.0 or RelyX U200. Shear bond strength (n=10) analyses were performed (1mm/min) before and after thermocycling (5-55°C, 2000cycles) on the bonded specimens. The data were analyzed with one and three-way ANOVAs and Bonferroni tests (α=0.05). NTP reduced the surface energy and roughness of the Y-TZP discs. SEM-EDS and XPS analyses showed the presence of the organic thin film, which significantly improved the bond strength results when Rely X U200 was used, whereas the primer treatment was more effective with Panavia F2.0. Thermocycling significantly reduced the bond strength results of the NTP and Pr+NTP groups cemented with Rely X U200 and the Pr and NTP+Pr groups cemented with Panavia F2.0. Nonthermal plasma improves the bond strength between Rely X U200 and Y-TZP and also seems to have water-resistant behavior, whereas Panavia F2.0 showed better results when associated with primer.
Collapse
|
22
|
Al-Harbi FA, Ayad NM, Khan ZA, Mahrous AA, Morgano SM. In vitro shear bond strength of Y-TZP ceramics to different core materials with the use of three primer/resin cement systems. J Prosthet Dent 2016; 115:84-9. [PMID: 26412003 DOI: 10.1016/j.prosdent.2015.07.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Revised: 07/07/2015] [Accepted: 07/14/2015] [Indexed: 11/19/2022]
Affiliation(s)
- Fahad A Al-Harbi
- Associate Professor, Substitutive Dental Sciences Department, University of Dammam, Dammam, Saudi Arabia
| | - Neveen M Ayad
- Associate Professor, Restorative Dental Sciences Department, University of Dammam, Dammam, Saudi Arabia; and Assistant Professor, Dental Biomaterials Department, Mansoura University, Mansoura, Egypt
| | - Zahid A Khan
- Lecturer, Substitutive Dental Sciences Department, University of Dammam, Dammam, Saudi Arabia
| | - Amr A Mahrous
- Professor, Substitutive Dental Sciences Department, University of Dammam, Dammam, Saudi Arabia
| | - Steven M Morgano
- Professor, Rutgers School of Dental Medicine, Rutgers University, Newark, NJ.
| |
Collapse
|
23
|
Abstract
Ceramics are very important in the science of dental biomaterials. Among all dental ceramics, zirconia is in evidence as a dental biomaterial and it is the material of choice in contemporary restorative dentistry. Zirconia has been applied as structural material for dental bridges, crowns, inserts, and implants, mostly because of its biocompatibility, high fracture toughness, and radiopacity. However, the clinical success of restorative dentistry has to consider the adhesion to different substrates, which has offered a great challenge to dental zirconia research and development. This study characterizes zirconia as a dental biomaterial, presenting the current consensus and challenges to its dental applications.
Collapse
|