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Özcan N, Utar M, Çulhaoğlu AK, Erdoğan HG. Effect of Er:YAG laser on removal of fibre posts from root canal. AUST ENDOD J 2023; 49 Suppl 1:294-300. [PMID: 36573837 DOI: 10.1111/aej.12732] [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: 09/02/2022] [Revised: 12/11/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022]
Abstract
The aim of this study was to evaluate the efficiency of Er:YAG laser in translucent fibre post removal. 60 human single-rooted anterior teeth were divided into three groups (n = 20) according to post diameters (Exacto1-E1, Exacto2-E2, Exacto3-E3) and subdivided according to laser application. Fibre posts were cemented to endodontically treated teeth, and the specimens were sliced with a thickness of 1.0 ± 0.2 mm. Er:YAG laser was applied and the push out bond strength test was performed. Two-way analysis of variance was used to perform the statistical analysis. Push out bond strengths at apical area were significantly lower in all test groups (p < 0.05). Laser application caused increase in all radicular thirds, but it was significant for E1 and E3 groups. Laser application to the post-dentine interface enhances the connection between post and dentine.
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Affiliation(s)
- Nihal Özcan
- Department of Prosthodontics, Faculty of Dentistry, Kirikkale University, Kirikkale, Turkey
| | | | - Ahmet Kürsad Çulhaoğlu
- Department of Prosthodontics, Faculty of Dentistry, Health Sciences Gülhane University, Ankara, Turkey
| | - Hamiyet Güngör Erdoğan
- Department of Prosthodontics, Faculty of Dentistry, Lokman Hekim University, Ankara, Turkey
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Deng Z, Huang Z, Ping L, Hu W, Yie KHR, Liu C, Zhang H, Liu J. The combined treatment of fiber post and root canal by the Er:YAG laser enhances the bond strength of composite reconstruction. Lasers Med Sci 2023; 38:146. [PMID: 37353598 DOI: 10.1007/s10103-023-03800-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 06/02/2023] [Indexed: 06/25/2023]
Abstract
Fiber post bonding failure remains an issue during crown restoration procedures. This experiment examines the bonding effect of combined Er:YAG laser treatment on both root canal and fiber post. Sixty extracted mandibular first premolars were randomly selected and divided into 6 groups (n = 10 per group): G1 (control group): root canal with 2.5% NaClO treatment, no treatment of fiber post; G2: root canal with 2.5% NaClO treatment and fiber post with airborne-particle abrasion; G3: root canal with Er:YAG laser treatment and fiber post with airborne-particle abrasion; G4: root canal with Er:YAG laser treatment, no treatment of fiber post; G5: root canal with 2.5% NaClO treatment, fiber post with Er:YAG laser irradiation; G6: combined Er:YAG laser irradiation of both root canal and fiber post. An Er:YAG laser with a wavelength of 2940 nm was used to treat the fiber post (4.5 W, 450 mJ, 10 Hz for 60 s at 100-μs pulse duration with 100% water cooling) and the root canal (1.5 W, 150 mJ, 10 Hz for 60 s at 100-μs pulse duration with 100% water cooling). When the root canal was treated with the laser, the fiber tip was inserted into the root canal to make a spiral reciprocating motion. Bond strength was analyzed by a micro push-out test. Data were analyzed using both the Tukey test and two-way ANOVA (α = 0.05). Failure modes were observed and counted through a stereo microscope. The root canal and fiber post surface analysis was performed using SEM. The bond strength of G3 and G6 were significantly enhanced compared to those of the other groups (p < 0.05). The SEM analysis showed that the smear layers of groups with root canals subjected to Er:YAG laser irradiation were significantly reduced compared to those of the control group (G1). In groups with fiber posts treated with Er:YAG laser irradiation, the surfaces of the fiber posts exhibited greater surface roughness and a certain degree of epoxy matrix removal. Through the combined Er:YAG laser irradiation of both root canal and fiber post, the bond strength between them was significantly enhanced, which was superior to the individual treatment of either fiber posts or root canal.
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Affiliation(s)
- Zhennan Deng
- School and Hospital of Stomatology, Wenzhou Medical University, 268#, Xueyuan West Road, Lucheng District, , Wenzhou City, 325027, Zhejiang Province, China
| | - Zhuo Huang
- School and Hospital of Stomatology, Wenzhou Medical University, 268#, Xueyuan West Road, Lucheng District, , Wenzhou City, 325027, Zhejiang Province, China
| | - Linchao Ping
- Department of Stomatology, Jiaxing Hospital of T.C.M, Jiaxing, 314000, China
| | - Wenjia Hu
- School and Hospital of Stomatology, Wenzhou Medical University, 268#, Xueyuan West Road, Lucheng District, , Wenzhou City, 325027, Zhejiang Province, China
| | - Kendrick Hii Ru Yie
- School and Hospital of Stomatology, Wenzhou Medical University, 268#, Xueyuan West Road, Lucheng District, , Wenzhou City, 325027, Zhejiang Province, China
| | - Chongxing Liu
- School and Hospital of Stomatology, Wenzhou Medical University, 268#, Xueyuan West Road, Lucheng District, , Wenzhou City, 325027, Zhejiang Province, China
| | - Hualin Zhang
- College of Stomatology, Ningxia Medical University, 804#, Shengli South Street, Xingqing District, Yinchuan City, 750004, Ningxia Province, China.
- General Hospital of Ningxia Medical University, Yinchuan, 750004, China.
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, 268#, Xueyuan West Road, Lucheng District, , Wenzhou City, 325027, Zhejiang Province, China.
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Alhamdan EM. Influence of Contemporary Photoactivated Disinfection on the Mechanical Properties and Antimicrobial Activity of PMMA Denture Base: A Systematic Review and Meta Analysis. Photodiagnosis Photodyn Ther 2023; 42:103523. [PMID: 36958538 DOI: 10.1016/j.pdpdt.2023.103523] [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: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 03/25/2023]
Abstract
PURPOSE The present study aimed to perform a systematic review and meta-analysis to investigate the effectiveness of the contemporary photoactivated disinfection methods on the mechanical features and/or antimicrobial activity of polymethyl methacrylate (PMMA) dentures bases. METHODS THE FOCUSED RESEARCH QUESTION WAS: : "What is the effect of contemporary photoactivated disinfection methods as compared to conventional disinfection protocols on the mechanical features and/or antimicrobial activity of PMMA dentures bases?". An electronic literature search was carried out by the author and a senior librarian specialized in health sciences on Web of Science, PubMed, and Scopus. In vitro investigations evaluating the antimicrobial and/or mechanical effects of photoactivated disinfectants as compared to conventional chemical disinfectants on the microbes formed on PMMA denture bases were included. Meta-analysis was performed for calculating the standard mean difference (SMD) with a 95% confidence interval. RESULTS Four out of eight studies concluded that photoactivated disinfectants, including riboflavin-mediated photodynamic therapy (PDT), hematoporphyrin-mediated PDT, poly-L-glycolic acid loaded with methylene blue, Erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser, erbium-doped yttrium-aluminum-garnet (Er:YAG) laser, and chitosan-mediated PDT, demonstrated a significant reduction in colony-forming unit per milliliter (CFU/mL) of exposed viable colonies of Escherichia coli (E. coli), Streptococcus mutans (S. mutans), Staphylococcus aureus (S. aureus), and Candida albicans (C. albicans) comparable to the conventionally used chemical disinfectants of PMMA denture bases. Contrarily, two studies concluded that the PMMA denture base colonized with C. albicans and disinfected with conventional chemical disinfectants showed the greatest anti-fungal efficaciousness. All the included studies concluded that the application of photoactivated disinfectants does not negatively impact the mechanical features of the PMMA denture bases colonized with microbes including E. coli, S. mutans, S. aureus, and C. albicans. The meta-analysis revealed statistically significant reduction in C. albicans counts (CFU/mL [Log10]) (p < 0.00001) and improvement in the flexural strength (p = 0.0002) of PMMA-based denture base after the application of conventional disinfectants, while a statistically significant improvement in the fracture strength of PMMA-based denture base was observed after the application of photoactivated disinfectants (p = 0.03). CONCLUSION According to the systematic review (qualitative synthesis), photoactivated disinfectants demonstrated comparable mechanical features and antimicrobial activity of PMMA dentures bases to conventional chemical disinfectants suggesting their potential to be utilized as an alternative to conventional chemical disinfectants. However, the meta-analysis (quantitative synthesis) revealed that the application of conventional disinfectants demonstrated better outcomes related to antimicrobial activity and flexural strength of PMMA-based denture based.
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Affiliation(s)
- Eman M Alhamdan
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, P.O.Box 21069, Riyadh 11475, Saudi Arabia.
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Huang Q, Li Z, Lyu P, Zhou X, Fan Y. Current Applications and Future Directions of Lasers in Endodontics: A Narrative Review. Bioengineering (Basel) 2023; 10:bioengineering10030296. [PMID: 36978686 PMCID: PMC10044917 DOI: 10.3390/bioengineering10030296] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/09/2023] [Accepted: 02/13/2023] [Indexed: 03/02/2023] Open
Abstract
The utilization of lasers has been regarded as a novel technique for the purposes of clinical use in the dental field. Recently, numerous studies have been conducted on the potential applications of laser therapy in endodontics. Moreover, due to their ablation, penetrability, and disinfection capabilities, lasers have performed well with respect to endodontic treatments, including root canal treatment, vital pulp therapy (pulp capping and pulpotomy), dentinal hypersensitivity treatment, and management of dental pain related to pulp and periradicular disease. In particular, the superiorities of laser-aided pulp therapy are emphasized through condensed clinical controlled trials, and histological studies, in this review. Moreover, the ingenious use of laser applications with respect to aiding in the acceleration of root development and the extraction of foreign matters (i.e., broken files and fiber posts) in canals has quickly become the cutting-edge trend of current research. This review offers a summary and discussion of the current literature on all the aforementioned laser applications. Moreover, the characteristics of laser devices, including erbium lasers, neodymium-doped lasers, CO2 lasers, and diode lasers, are detailed and discussed here, providing useful references for laser application in endodontics. We also focus on the different wavelengths with respect to the lasers that are applied in endodontics. High-power lasers perform well as operative instruments; in addition, low-level lasers lead to the regulation of pulp inflammation, and the promotion of pulp healing. This narrative review provides a summary of the advanced applications of lasers in conjunction with various devices in the practice of endodontics, and aims to inspire innovative perspectives on lasers in the context of the treatment of dental diseases, especially pulp diseases, in the future.
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Tulbah HI. Anticandidal efficacy on Polymide based denture resin using Photodynamic therapy, chemical and herbal disinfectants and their effect on surface roughness and hardness. Photodiagnosis Photodyn Ther 2022; 39:102874. [DOI: 10.1016/j.pdpdt.2022.102874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/17/2022] [Accepted: 04/19/2022] [Indexed: 10/18/2022]
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Almutairi B, Almohareb T, Almadi K, Alkahtany M. Radicular canal disinfection using photon-induced photoacoustic streaming and riboflavin photosensitizer to silver diamine fluoride and diode laser bonded to fiber post: An assessment of extrusion bond strength. Photodiagnosis Photodyn Ther 2022; 37:102731. [DOI: 10.1016/j.pdpdt.2022.102731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/13/2022] [Accepted: 01/18/2022] [Indexed: 11/16/2022]
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Hesham M, Hashem A, Hamza F. Effect of Different Surface Treatments of Glass Fiber Posts on their Surface Roughness and Flexure Properties. Open Access Maced J Med Sci 2021. [DOI: 10.3889/oamjms.2021.6843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
AIM: This study aimed to assess the effect of different surface treatments on the surface roughness and flexure properties of glass fiber posts “GFPs.”
MATERIALS AND METHODS: A total of 40 GFPs were divided into four groups (n = 10): GC – no surface treatment (control), GSB – sandblasted, GHF – hydrofluoric acid etched, and GL – Er: YAG laser irradiated. Surface roughness was detected using surface profilometer and the 3-points bending flexural test measured flexural strength and elastic modulus.
RESULTS: GSB showed the highest mean roughness followed by GHF, then GL, while GC had lowest roughness mean value. The 3 points bending test results were calculated and recorded, GSB exhibited the highest flexure stress (MPa) compared to GHF and GL. Modulus of elasticity (GPa) showed significant differences between the tested groups, GSB showed the highest modulus of elasticity compared to GHF and GL, while GC showed insignificant differences with all tested groups.
CONCLUSION: Different surface treatments postulated in this study showed alternations of GFPs surfaces without jeopardizing the mechanical properties of GFPs.
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Kırmalı Ö, Sekmen T, Karaarslan A. Push-out bond strength of various surface treatments on fiber post to root canal dentine using different irrigation techniques. Microsc Res Tech 2021; 84:2024-2033. [PMID: 33749061 DOI: 10.1002/jemt.23758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 02/13/2021] [Accepted: 03/09/2021] [Indexed: 11/11/2022]
Abstract
To compare the efficacy of different surface treatments (fiber post) with laser activated irrigation (LAI) technique (various root canal solutions) on root canal dentine in terms of push-out bond strength (PBS) in a fiber post. In this study, 200 premolars were assigned into groups according to various irrigation techniques: 2.5% sodium hypochlorite (NaOCl), 17% ethylene diamine tetra acetic acid (EDTA), and 17% EDTA + LAI. In addition, the fiber posts were separated into five groups, (n = 30) according to the surface pretreatment performed: sandblasting, hydrofluoric acid (HF), Erbium, Chromium:Yttrium Scandium-Gallium-Garnet (Er,Cr:YSGG) laser, Neodymium-Doped Yttrium Aluminum Garnet (Nd,YAG) laser and as untreated surface. The posts were cemented using dual-cure resin cement and subjected to a PBS test. Data were analyzed by one way-ANOVA, Tukey, and Tamhane T2 tests. The PBS values were increased in all parts of the tooth in the EDTA and EDTA + LAI treated groups and in groups treated with Er,Cr:YSGG laser fiber posts. In groups in which EDTA and EDTA + LAI were applied, it was observed that dentinal tubules were open according to the distribution and number of dentinal tubule configurations. The improvement of the PBS between fiber post/resin cement/root dentine was observed via the use of fiber post surface treatments with different irrigation techniques.
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Affiliation(s)
- Ömer Kırmalı
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | | | - Ayşegül Karaarslan
- Department of Restorative Dentistry, Faculty of Dentistry, Erzincan Binali Yıldırım University, Erzincan, Turkey
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Davoudi A, Shadmehr E, Savoj M, Akhavan-Khaleghi M, Tabesh M, Zakizade M, Ebadian B. Laser Treatment of Fiber Post and Final Push-Out Bond Strength: A Systematic Review and Meta-Analysis. PHOTOBIOMODULATION PHOTOMEDICINE AND LASER SURGERY 2020; 39:321-333. [PMID: 33275497 DOI: 10.1089/photob.2020.4809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Purpose: This review article tries to answer this question: "What are the effects of laser surface treatment of fiber posts (FPs), compared with other surface roughening methods, on bond strength of cemented FPs?" Methods: Search was carried out in six electronic databases by focusing on defined key words. Related titles and abstracts, up to March 2019, were collected, read, and selected for quality assessments. A total of 2408 articles were included in the study at the initial stage of the searching phase. Results: Finally, seven studies were recognized to be reliable to be reviewed and meta data analysis in the study. All the studies were in vitro with a total of 340 samples. None of the Er:YAG (-0.27, 95% CI: -2.29 to 1.76; p = 0.79) and Er,Cr:YSGG (-0.04, 95% CI: -1.43 to 1.35; p = 0.95) treated samples showed any significant overall mean differences in final push-out bond strength (PBS) compared with the control groups. Conclusions: Laser pretreatment of FP surfaces might not be effective in providing high PBS. FP surface are susceptible to damage of high-level laser irradiation and might show decreased bond strength.
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Affiliation(s)
- Amin Davoudi
- Department of Prosthodontics, Dental Implants Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Elham Shadmehr
- Department of Endodontics, School of Dentistry, UCSF Preventive & Restorative Dental Science, San Francisco, California, USA
| | - Melika Savoj
- Dental Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehrdad Akhavan-Khaleghi
- Department of Prosthodontics, Dental Implants Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahtab Tabesh
- Dental Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehrnaz Zakizade
- Department of Orthodontics, Dental School, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Behnaz Ebadian
- Department of Prosthodontics, Dental Implants Research Center, Dental Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
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Kırmalı Ö, Akçakuş Battal T, Turker N, Dündar A. Mechanical properties of glass-fibre-reinforced composite posts after laser irradiation with different energy densities. AUST ENDOD J 2020; 47:34-42. [PMID: 33002287 DOI: 10.1111/aej.12443] [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: 05/21/2020] [Revised: 08/03/2020] [Accepted: 09/02/2020] [Indexed: 11/26/2022]
Abstract
The aim of the present study was to evaluate the effect of the surface treatments on flexural strengths and flexural modulus of glass-fibre-reinforced composite (GFRC) posts. Sixty-three posts were randomly divided into 9 groups (n = 7), and various surface treatments were performed. The control group was left untreated. Other groups were treated with 9% hydrofluoric acid, sandblasting with 120 µm Al2 O3 particles and Er,Cr:YSGG laser irradiation with different powers (1 W, 2 W, 3 W, 4 W, 5 W and 6 W). The samples were subjected to 3-point bending test, and data were calculated. Statistical analysis was performed. The flexural strengths of fibre posts treated with sandblasting, hydrofluoric acid, 1 W and 2 W laser were statistically similar with control group (P > 0.01). However, the flexural strength of fibre posts treated with 3 W, 4 W, 5 W and 6 W laser was statistically lower than control group (P < 0.01). High laser irradiations cause melting on the post surface and breaks in fibrils.
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Affiliation(s)
- Ömer Kırmalı
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Tuba Akçakuş Battal
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Nurullah Turker
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Ayşe Dündar
- Department of Restorative Dentistry, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
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Borges CC, Palma-Dibb RG, Rodrigues FCC, Plotegher F, Rossi-Fedele G, de Sousa-Neto MD, Souza-Gabriel AE. The Effect of Diode and Er,Cr:YSGG Lasers on the Bond Strength of Fiber Posts. Photobiomodul Photomed Laser Surg 2019; 38:66-74. [PMID: 31393231 DOI: 10.1089/photob.2019.4668] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background: Laser irradiation modifies the topography and composition of dentin surface aiming to increase the retention of bonded posts. Objective: To assess the effect of dentin irradiation with Er,Cr:YSGG or diode lasers on the bond strength of fiber posts using self-adhesive resin cement. Materials and methods: Sixty bovine root canals were root-canal treated, post spaces were prepared, and subsequently fiber posts were cemented. The samples were distributed according to the surface treatment: distilled water (control), Er,Cr:YSGG (1.5 W, 20 sec), or diode (1.5 W, 20 sec) lasers. Bond strengths were assessed by pull-out (n = 10) or push-out testing (n = 10). Pearson's correlation was calculated. Failure mode after testing and the depth of tags in the dentinal tubules were analyzed by confocal laser microscopy. Data were submitted to analysis of variance and Tukey's test. A p < 0.05 was considered significant. Results: In the push-out test, Er,Cr:YSGG laser had significantly different higher values (5.43 ± 0.10 MPa) compared to the control (4.79 ± 0.05 MPa). Diode laser values were not significantly different from the other groups (5.12 ± 0.27 MPa). In the pull-out test, there were no significant differences between Er,Cr:YSGG (6.86 ± 2.16 MPa) and diode (8.43 ± 1.77 MPa) lasers, and both had significant differences compared to the control (4.18 ± 1.29 MPa). No correlation was found. Adhesive failures were predominant in all groups, and no significant differences in tag penetration among the groups were found. Conclusions: The Er,Cr:YSGG laser increases the bond strength of resin cement and fiber post to dentin in both tests, compared to control group without laser treatment. Diode laser only enhanced bonding for pull-out test.
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Affiliation(s)
- Caroline Cristina Borges
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Regina Guenka Palma-Dibb
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Flávia Cássia Cabral Rodrigues
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Fernanda Plotegher
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | | | - Manoel Damião de Sousa-Neto
- Department of Restorative Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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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.
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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
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Maroulakos G, Wanserski MW, Wanserski MM, Schuler EJ, Egan CP, Thompson GA. Effect of airborne-particle abrasion on 3-dimensional surface roughness and characteristic failure load of fiber-reinforced posts. J Prosthet Dent 2019; 121:461-469. [DOI: 10.1016/j.prosdent.2018.07.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 07/24/2018] [Accepted: 07/24/2018] [Indexed: 10/27/2022]
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Elsaka SE, Elnaghy AM. Bonding durability of titanium tetrafluoride treated glass fiber post with resin cement. Dent Mater J 2018; 38:189-195. [PMID: 30381636 DOI: 10.4012/dmj.2018-054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study evaluated the effect of titanium tetrafluoride (TiF4) solution on the bond strength of glass fiber post to resin cement. The specimens were divided into eight groups according to the method of surface treatment performed. Flexural properties and microtensile bond strength (µTBS) were determined. Data were analyzed using two-way ANOVA and Tukey's post hoc tests. The highest µTBS achieved with the TiF4 (4 wt/v%-4 min) group compared with the other groups (p<0.05). This finding could be attributed to the effectiveness of TiF4 (4 wt/v%-4 min) on removing the surface layer of the resin matrix of fiber posts that provides more uncovered surface areas of posts which improved the micromechanical retention of the resin cement. Surface treatments did not affect the flexural properties of fiber posts (p>0.05). Surface treatment of fiber post with TiF4 (4 wt/v%-4 min) solution exhibited higher bond strength to resin cement compared with other surface treatments.
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Affiliation(s)
- Shaymaa E Elsaka
- Department of Dental Biomaterials, Faculty of Dentistry, Mansoura University
| | - Amr M Elnaghy
- Department of Endodontics, Faculty of Dentistry, Mansoura University
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Sari F, Ustun O, Kirmali O. Efficacy of Various Pretreatments on the Bond Strength of Denture Teeth to Denture Base Resins. Photomed Laser Surg 2018; 36:214-220. [DOI: 10.1089/pho.2017.4408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- Fatih Sari
- Department of Prosthodontics, Faculty of Dentistry, Gaziantep University, Gaziantep, Turkey
| | - Ozlem Ustun
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Omer Kirmali
- Department of Prosthodontics, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
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16
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Hashemikamangar SS, Hasanitabatabaee M, Kalantari S, Gholampourdehaky M, Ranjbaromrani L, Ebrahimi H. Bond Strength of Fiber Posts to Composite Core: Effect of Surface Treatment With Er,Cr:YSGG Laser and Thermocycling. J Lasers Med Sci 2018; 9:36-42. [PMID: 29399310 DOI: 10.15171/jlms.2018.09] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: This study aimed to determine the bond strength of fiber post to composite core following surface treatment with Er,Cr:YSGG laser at different powers and sandblasting with and without thermocycling. Methods: In this experimental study, 30 fiber posts (Glassix, Nordin, Switzerland) were randomly divided into 5 groups of sandblasting, no treatment and laser irradiation at 1, 1.5 and 2 W powers. Following composite filling and mounting, 1-mm thick sections were made for pushout bond strength testing. Half of the samples in each group were subjected to thermocycling (n=15). Two-way analysis of variance (ANOVA) was used to analyze the bond strength values. Pairwise comparisons were made using Tukey test (P<0.05). Results: Effect of treatment method on push-out bond strength of fiber post to composite core was significant (P=0.017), while thermocycling had no significant effect on bond strength (P=0.964). Pairwise comparison of surface treatment methods revealed no significant difference in groups with and without thermocycling (P>0.05), but Er,Cr:YSGG laser irradiation with 1 W power yielded significantly higher bond strength than the control group (P=0.01). Conclusion: Irradiation of Er,Cr:YSGG laser at 1 W power increased the bond strength of fiber post to composite core. Thermocycling slightly decreased the bond strength at the fiber postcore interface.
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Affiliation(s)
| | | | - Saman Kalantari
- Operative Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrzad Gholampourdehaky
- Internal Medicine and Endocrinology, Medical Faculty, Aja University of Medical Sciences, Tehran, Iran
| | - Ladan Ranjbaromrani
- Operative Department, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Hooman Ebrahimi
- Laser Research Center, School of Dentistry, Tehran University Of Medical Sciences, International Campus, Tehran, Iran
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17
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Kırmalı Ö, Üstün Ö, Kapdan A, Kuştarcı A. Evaluation of Various Pretreatments to Fiber Post on the Push-out Bond Strength of Root Canal Dentin. J Endod 2017; 43:1180-1185. [DOI: 10.1016/j.joen.2017.03.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/02/2017] [Accepted: 03/06/2017] [Indexed: 10/19/2022]
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18
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Kaval ME, Akin H, Guneri P. Radiopacity of Esthetic Post Materials: Evaluation with Digital Analysis Technique. J Prosthodont 2015; 26:455-459. [PMID: 26513716 DOI: 10.1111/jopr.12386] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2015] [Indexed: 01/22/2023] Open
Abstract
PURPOSE To evaluate the radiopacity of five post materials using a digital image analysis method. MATERIALS AND METHODS Twelve specimens from each post type (two zirconia and three fiber based) of 2 mm in thickness were obtained using a diamond blade mounted on a cutting machine, and digital radiographs were taken along with aluminum step-wedge and dentin discs under standard exposure conditions. The mean gray-values of specimens were measured using a computer graphics program. Data were analyzed using one-way ANOVA followed by Holm-Sidak multicomparison test (p = 0.05). RESULTS The highest radiopacity was observed in custom zirconia (5.842 millimeters of equivalent Al [mmAl]), and the lowest value was detected with FRC-Postec (Ivoclar Vivadent) (1.716 mmAl). Significant differences were revealed between the radiopacity values among all groups (p < 0.05), except the Zr post materials (p = 0.56). CONCLUSIONS All tested post materials had higher radiopacity than dentin. Further studies will be required to clarify optimum radiopacity properties of the post materials to provide a precise clinical observation.
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Affiliation(s)
- Mehmet Emin Kaval
- Department of Endodontology, School of Dentistry, Ege University, Izmir, Turkey
| | - Hakan Akin
- Faculty of Dentistry, Department of Prosthodontics, Cumhuriyet University, Sivas, Turkey
| | - Pelin Guneri
- Department of Oral and Maxillofacial Radiology, School of Dentistry, Ege University, Izmir, Turkey
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19
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Akin GE, Kaval ME, Turk T, Akin H. Surface Roughness and Bond Strength of Zirconia Posts to a Resin Cement After Various Surface Pretreatments. Photomed Laser Surg 2015; 33:246-51. [DOI: 10.1089/pho.2014.3861] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Gulsah E. Akin
- Department of Restorative Dentistry, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey
| | - Mehmet Emin Kaval
- Department of Endodontics, Faculty of Dentistry, Ege University, İzmir, Turkey
| | - Tugba Turk
- Department of Endodontics, Faculty of Dentistry, Ege University, İzmir, Turkey
| | - Hakan Akin
- Department of Prosthodontics, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey
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