1
|
Cakir E, Duman AN, Yildirim AZ, Cevik P. Shear Bond Strength between Orthodontic Brackets and Monolithic 4Y-TZP: An In Vitro Study. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5173. [PMID: 37512447 PMCID: PMC10383428 DOI: 10.3390/ma16145173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023]
Abstract
The aim of this study was to evaluate the effect of different surface treatments on the shear bond strength (SBS) between metal orthodontic brackets and monolithic zirconia surfaces bonded with resin composite. Fifty monolithic zirconia (4Y-TZP) disks were sintered and glazed. Specimens were divided into five groups (n = 10) for different surface treatments: control, nano second fiber laser, sandblasting, grinding and tribochemical coating (CoJet Sand 30-μm). Metal orthodontic brackets were bonded to monolithic zirconia surface by two-component orthodontic adhesive. After 500 cycles of thermocycling, shear bond strength values were measured by a universal testing machine at a cross head speed of 0.5 mm/min. The data was recorded as MPa and statistically analyzed with One-way ANOVA, Levene's LSD tests with Bonferroni corrections. The significance level was α = 0.05. The surface topography of one specimen of each group was evaluated by scanning electron microscopy (SEM). Statistically significant difference was observed among study groups (p = 0.018). The lowest shear bond strength was observed in the control group (3.92 ± 1.9). Tribochemical coating showed the highest bond strength (7.44 ± 2.9), which was statistically different from the control and nano second laser (4.3 ± 1.4) groups but not statistically different from grinding (6.15 ± 3.1) or sandblasting (6.47 ± 3.3). SEM images showed comprehensive results of each surface treatment on monolithic zirconia. All failure modes were recorded as adhesive between the composite resin and monolithic zirconia. Based on the findings of this study, it can be concluded that grinding, sandblasting and tribochemical coating techniques showed clinically acceptable bond strength within the range of 6-8 MPa. These surface treatments can be considered suitable for achieving a durable bond between metal orthodontic brackets and monolithic 4Y-TZP ceramic surfaces.
Collapse
Affiliation(s)
| | - Ayse Nurcan Duman
- Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara 06490, Türkiye
| | - Arzu Zeynep Yildirim
- Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara 06490, Türkiye
| | - Pinar Cevik
- Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara 06490, Türkiye
- Department of General Practice and Dental Public Health, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX 77054, USA
- Houston Center for Biomaterials and Biomimetics, Houston, TX 77054, USA
| |
Collapse
|
2
|
Cevik P, Yildirim AZ, Demir Sevinc EH, Gonder A, Kiat-Amnuay S. Using Peek as a Framework Material for Maxillofacial Silicone Prosthesis: An In Vitro Study. Polymers (Basel) 2023; 15:2694. [PMID: 37376341 DOI: 10.3390/polym15122694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
There are often bonding problems between acrylic resins and silicone. PEEK (polyetheretherketone), which is a high-performance polymer, has great potential for the implant, and fixed or removable prosthodontics. The aim of this study was to evaluate the effect of different surface treatments on PEEK to be bonded to maxillofacial silicone elastomers. A total of 48 specimens were fabricated from either PEEK or PMMA (Polymethylmethacrylate) (n = 8). PMMA specimens acted as a positive control group. PEEK specimens were divided into five study groups as surface treatments as control PEEK, silica-coating, plasma etching, grinding, or nano-second fiber laser. Surface topographies were evaluated by scanning electron microscopy (SEM). A platinum-primer was used on top of all specimens including control groups prior to silicone polymerization. The peel bond strength of the specimens to a platinum-type silicone elastomer was tested at a cross-head speed of 5 mm/min. The data were statistically analyzed (α = 0.05). The control PEEK group showed the highest bond strength (p < 0.05) among the groups. No statistical difference was found between control PEEK, grinding, or plasma etching groups (p > 0.05). The lowest bond strength was seen in the laser group, which was not statistically different from silica-coating (p > 0.05), and statistically different from control PEEK, grinding, or plasma groups (p < 0.05). Positive control PMMA specimens had statistically lower bond strength than either control PEEK or plasma etching groups (p < 0.05). All specimens exhibited adhesive failure after a peel test. The study results indicate that PEEK could serve as a potential alternative substructure for implant-retained silicone prostheses.
Collapse
Affiliation(s)
- Pinar Cevik
- Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara 06490, Turkey
- Department of General Practice and Dental Public Health, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX 77054, USA
- Houston Center of Biomaterials and Biomimetics, Houston, TX 77054, USA
| | - Arzu Zeynep Yildirim
- Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara 06490, Turkey
| | | | - Aykut Gonder
- Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara 06490, Turkey
| | - Sudarat Kiat-Amnuay
- Department of General Practice and Dental Public Health, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX 77054, USA
- Houston Center of Biomaterials and Biomimetics, Houston, TX 77054, USA
| |
Collapse
|
3
|
Dündar Y, Halil T, Nigiz R, Seyfioğlu P, Mutluay U. Effect of Yb: Fiber laser on surface roughness and wettability of titanium. BALKAN JOURNAL OF DENTAL MEDICINE 2022. [DOI: 10.5937/bjdm2201052d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Background/Aim: In recent years, the role of computer aided design (CAD) and computer aided manufacturing (CAM) in dentistry has increasingly become important. However, the influence of different Yb: fiber laser applications on surface roughness of CAD/CAM implant has rarely been studied. The aim of this study is to investigate the effect of different Yb: fiber laser parameters on the surface roughness of CAD/CAM titanium. Material and Methods: Titanium samples, produced by CAD/CAM, were divided into 11 groups according to laser parameters such as scanning types (ST), application angles (AA) and hatch interval (HI). The surface roughness of CAD/CAM titanium was examined for each group. Wettability contact angles (CA) were also determined. Results: The highest surface roughness (43 mm) value was obtained for Group 10 (three-ways ST, 60o AA, 0.07mm HI). The lowest value (2.77 mm) after control group was obtained for Group 6. Surface roughness values, for Group 3, Group 9 and Group 10 were significantly higher than for the other groups (P= 0.000). In contact angle evaluations, the highest contact angle (144o) was observed in Group 10, while the lowest (95o) was observed in control group. Conclusions: Surface roughness was dependent on mixed effect of the laser application parameters. Three-ways ST, 60o AA, 0.07mm HI provided highest surface roughness and wettability contact angles. The surface roughness values of one-way ST, 0.06 mm HI, two-ways HT, 45o AA and 0.08 mm HI and three-ways ST, 60o AA and 0.07 mm HI were significantly higher than for the other groups (P=0.000).
Collapse
|
4
|
Nakamura K, Kawaguchi T, Ikeda H, Karntiang P, Kakura K, Taniguchi Y, Toyoda K, Shimizu H, Kido H. Bond durability and surface states of titanium, Ti-6Al-4V alloy, and zirconia for implant materials. J Prosthodont Res 2021; 66:296-302. [PMID: 34470984 DOI: 10.2186/jpr.jpr_d_20_00297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
PURPOSE Screw-retained implant crowns used as dental implants comprise a zirconia coping and titanium base bonded using resin cement. These devices are prone to debonding failures. This study investigated the bond characteristics of implant materials based on shear bond strength (SBS) and surface characteristics. METHODS Chemically pure (CP) titanium grade-4 (Ti), Ti-6Al-4V alloy (Ti-6Al-4V), and tetragonal polycrystalline zirconia (zirconia) were evaluated as adherent materials. Plates of each material were polished, primed for the respective resin cements, and cemented using either methyl methacrylate-based resin cement (Super-Bond) or composite-based resin cement (Panavia). The cemented samples were subjected to 10,000 thermocycles alternating between 5 and 55 °C, and the SBS were obtained before and after thermocycling. The sample surfaces were characterized based on surface observations, roughness, and free energy (SFE). RESULTS The SBSs of all materials bonded using Panavia were significantly compromised during thermocycling and reached zero. Although the SBSs of Ti and Ti-6Al-4V bonded using Super-Bond were not significantly affected by thermocycling, those of zirconia decreased significantly. The bond durability between zirconia and Super-Bond was improved via alumina air-abrasion, which caused no significant loss of SBS after thermocycling. Surface analyses of the air-abraded zirconia validated these results and confirmed that its surface roughness and SFE were significantly increased. CONCLUSIONS The bond durability between resin cement and zirconia was lower than that between Ti and Ti-6Al-4V. The alumina air-abrasion pretreatment of zirconia improved the SFE and surface roughness, thereby enhancing bond durability.
Collapse
Affiliation(s)
- Keiko Nakamura
- Center for Oral Diseases, Fukuoka Dental College, Fukuoka
| | - Tomohiro Kawaguchi
- Section of Removable Prosthodontics, Department of Oral Rehabilitation, Fukuoka Dental College, Fukuoka
| | - Hiroshi Ikeda
- Division of Biomaterials, Department of Oral Functions, Kyushu Dental University, Fukuoka
| | - Pirat Karntiang
- Division of Biomaterials, Department of Oral Functions, Kyushu Dental University, Fukuoka.,Division of Operative Dentistry, College of Dental Medicine, Rangsit University, Pathum Thani
| | - Kae Kakura
- Section of Oral Implantology, Department of Oral Rehabilitation, Fukuoka Dental College, Fukuoka
| | - Yusuke Taniguchi
- Section of Oral Implantology, Department of Oral Rehabilitation, Fukuoka Dental College, Fukuoka
| | - Keita Toyoda
- Section of Oral Implantology, Department of Oral Rehabilitation, Fukuoka Dental College, Fukuoka
| | - Hiroshi Shimizu
- Division of Biomaterials, Department of Oral Functions, Kyushu Dental University, Fukuoka
| | - Hirofumi Kido
- Section of Oral Implantology, Department of Oral Rehabilitation, Fukuoka Dental College, Fukuoka
| |
Collapse
|
5
|
Al Ahdal K, Al Deeb L, Bin-Shuwaish MS, Al-Hamdan RS, Al Deeb M, Maawadh AM, Alhenaki AM, AlHelal A, Alresayes S, Al-Aali KA, Vohra F, Abduljabbar T. Bond Integrity of Titanium Surface to Resin Cement After Conditioning with Different Photobiomodulataion Therapy (PBT). J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of the present study was to evaluate the efficacy of interfacial bonding between resin cement and titanium alloy conditioned with different Photobiomodulataion Therapy (PBT) in comparison with conventional regimes. Seventy-five samples of titanium bar were segmented polished;
and based on conditioning regime divided into five groups (15 each specimens). Group 1: No treatment (control), Group 2: Sand blasting with 120 µm Al2O3, Group 3: Er,Cr:YSGG (ECL), Group 4: Er:YAG laser (EYL), Group 5: Nd:YAG laser (NYL). After different
conditioning regimes, resin cement was mixed and applied. All specimens were thermocycled for 500 cycles and positioned on universal testing machine for shear bond strength testing. Modes of failure was assessed by a single examiner using stereomicroscope at 40× magnification. Three
pairs of specimens in each group were sputter coated and scanning electron microscope (SEM) images were taken at 1000× magnification using 20 Kv. The highest SBS values were observed in group 2 (14.25±2.29 MPa) and the lowest bond values were displayed in group 1 (6.98 ±0.59
MPa). Titanium alloy abutments conditioned with different laser prototypes ECL (11.22±1.40 MPa), EYL (9.29±1.22 MPa) and NYL (9.12 ±1.84 MPa) exhibited comparable SBS (p > 0.05). Adhesive failures were primarily dominant among all experimental groups. Photo-biomodulation
in the form of ECL lasers has the potential to be used as a supplement to sandblasting procedure in conditioning of cement retained titanium alloy implant abutments.
Collapse
Affiliation(s)
- Khold Al Ahdal
- Department of Restorative Dentistry, College of Dentistry King Saud University Riyadh, 60169, Saudi Arabia
| | - Laila Al Deeb
- Department of Restorative Dentistry, College of Dentistry King Saud University Riyadh, 60169, Saudi Arabia
| | - Mohammed S. Bin-Shuwaish
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Rana S. Al-Hamdan
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Modhi Al Deeb
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Ahmed M. Maawadh
- Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Aasem M. Alhenaki
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Abdulaziz AlHelal
- Department of Prosthetic Dental Sciences, College of Dentistry, Research Chair for Biological Research in Oral Health, King Saud University, Riyadh 11545, Saudi Arabia
| | - Saad Alresayes
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia
| | - Khulud A. Al-Aali
- Department of Clinical Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Fahim Vohra
- Department of Prosthetic Dental Sciences, College of Dentistry, Research Chair for Biological Research in Oral Health, King Saud University, Riyadh 11545, Saudi Arabia
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Sciences, College of Dentistry, Research Chair for Biological Research in Oral Health, King Saud University, Riyadh 11545, Saudi Arabia
| |
Collapse
|
6
|
Laser-Milled Microslits Improve the Bonding Strength of Acrylic Resin to Zirconia Ceramics. Polymers (Basel) 2020; 12:polym12040817. [PMID: 32260358 PMCID: PMC7240430 DOI: 10.3390/polym12040817] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 11/20/2022] Open
Abstract
Heightened aesthetic considerations in modern dentistry have generated increased interest in metal-free “zirconia-supported dentures.” The lifespan of the denture is largely determined by the strength of adhesion between zirconia and the acrylic resin. Thus, the effect on shear bond strength (SBS) was investigated by using an acrylic resin on two types of zirconia ceramics with differently sized microslits. Micromechanical reticular retention was created on the zirconia surface as the novel treatment (microslits (MS)), and air-abrasion was used as the control (CON). All samples were primed prior to acrylic resin polymerization. After the resin was cured, the SBS was tested. The obtained data were analyzed by using multivariate analysis of variance(α = 0.05). After the SBS test, the interface failure modes were observed by scanning electron microscopy. The MS exhibited significantly higher bond strength after thermal cycles (p < 0.05) than the CON. Nevertheless, statistically comparisons resulted in no significant effect of the differently sized microslits on SBS (p > 0.05). Additionally, MS (before thermal cycles: 34.8 ± 3.6 to 35.7 ± 4.0 MPa; after thermal cycles: 26.9 ± 3.1 to 32.6 ± 3.3 MPa) demonstrated greater SBS and bonding durability than that of CON (before thermal cycles: 17.3 ± 4.7 to 17.9 ± 5.8 MPa; after thermal cycles: 1.0 ± 0.3 to 1.7 ± 1.1 MPa), confirming that the micromechanical retention with laser-milled microslits was effective at enhancing the bonding strength and durability of the acrylic resin and zirconia. Polycrystalline zirconia-based ceramics are a newly accessible material for improving removable prosthodontic treatment, as the bond strength with acrylic resin can be greatly enhanced by laser milling.
Collapse
|
7
|
Korkmaz FM, Aycan S. Effect of Fiber Laser Irradiation on the Shear Bond Strength between Acrylic Resin and Titanium. SCANNING 2019; 2019:5452919. [PMID: 31531156 PMCID: PMC6745174 DOI: 10.1155/2019/5452919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES The aim of this study is to investigate the shear bond strength of an acrylic resin to titanium after different surface treatment methods. MATERIAL AND METHODS A total of seventy-two disc-shaped specimens (10 mm × 10 mm × 2 mm) were prepared from titanium alloy. The specimens were randomly allocated to six equal groups: Group S (sandblasting), Group MP (metal primer), Group 10W (fiber laser 10 W), Group 20W (fiber laser 20 W), Group 10WMP (fiber laser 10 W+metal primer), and Group 20WMP (fiber laser 20 W+metal primer). All of the specimens were thermocycled up to 5000 cycles. After thermal cycling, a shear bond strength test was conducted. The shear bond strength data were analyzed with one-way ANOVA and Tukey's post hoc pairwise comparisons (p < 0.05). RESULTS While the highest values were determined in Group MP, the lowest values were observed in Group S. Additionally, Group MP exhibited significantly higher shear bond strength values than any of the other groups (p < 0.05) except Group 10WMP. Similar results were observed between Group MP and Group 10WMP (p > 0.05). The groups in which a metal primer was applied (Group MP, 10WMP, and 20WMP) showed significantly higher values than Group S. The shear bond strength values of Group 10W and Group 20W were similar. CONCLUSIONS The application of a metal primer significantly improved the bond strength of acrylic resin to titanium. Fiber laser application may be an alternative method to sandblasting for improving the bond strength of acrylic resin to titanium.
Collapse
Affiliation(s)
- Fatih Mehmet Korkmaz
- Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Selin Aycan
- Department of Prosthodontics, Faculty of Dentistry, Karadeniz Technical University, 61080 Trabzon, Turkey
| |
Collapse
|
8
|
Ustun O, Akar T, Kirmali O. A Comparative Study of Laser Irradiation Versus Sandblasting in Improving the Bond Strength of Titanium Abutments. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2019; 37:465-472. [PMID: 31390314 DOI: 10.1089/photob.2018.4601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Objective: The purpose of this study was to evaluate the effects of Er,Cr:YSGG laser irradiation with different energy powers versus sandblasting for enhancing the tensile bond strength (TBS) between titanium implant abutments (IAs) and resin cements. Background data: Clinical decementation of prosthetic restorations often occurs, particularly on short IAs. Increasing the bonding area on the IA surface can enhance the function and longevity of the superstructure. Materials and methods: Fifty dental IAs were used in solid form and randomly assigned to five groups (n = 10 each) for the following different pretreatments: control group was left untreated, a laser operating at 2.78 μm wavelength with different energy powers (1, 2, and 3 W) was used for three laser groups, and 50 μm alumina particles were applied to the abutment surface for the sandblasting group. Fifty metal substructures that had an occlusal metal O-ring were cast and cemented to all abutments using dual-cure resin cement. Test specimens were then subjected to thermal cycling. TBS tests were performed with a universal testing machine. The specimens' surface topography and roughness were evaluated with scanning electron microscope, and energy dispersive spectroscopy (EDS) was used to measure the elemental profiles of each specimen. Data were analyzed using a one-way analysis of variance/Kruskal-Wallis test at a significance level of p < 0.05. Results: Surface treatments affected the surface roughness and TBS of the IA. The sandblasting group showed the highest bond strength values (510.77 ± 60.86 N) and followed by the 2 W group (279.07 ± 37.9 N). In EDS analysis, no elemental components other than titanium and oxygen were observed, except for in the sandblasting group. Conclusions: Sandblasting and 2 W laser treatment increased the surface roughness of the IA, which could contribute to the increased interfacial bond strength between the IA and resin cement.
Collapse
Affiliation(s)
- Ozlem Ustun
- 1Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Turker Akar
- 2Department of Prosthodontics, Faculty of Dentistry, Erzincan University, Erzincan, Turkey
| | - Omer Kirmali
- 1Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| |
Collapse
|