1
|
İskefli N, Yeğin E, Sezgin GP, Sönmez Kaplan S, Kaplan T. Effect of reapplication on pull-out bond strength of fibre post to root dentin: An in vitro study. Saudi Dent J 2024; 36:574-578. [PMID: 38690387 PMCID: PMC11056423 DOI: 10.1016/j.sdentj.2024.01.011] [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] [Received: 08/16/2023] [Revised: 01/11/2024] [Accepted: 01/23/2024] [Indexed: 05/02/2024] Open
Abstract
Purpose Post removal may be necessary for many reasons and is inevitable after the re-application of a dental post. The present study investigated the bond strength between root dentin and a re-applied fibre-reinforced composite (FRC) post by a pull-out test. Materials and methods After root canal treatments of 30 extracted human maxillary canine teeth, post spaces were prepared (10 mm), and FRC posts (Hi-Rem Post; Overfibres, İmola, Italy) were luted with self-adhesive resin cement. The samples were than randomly divided into test and control groups (n = 15 in each). The FRC posts were removed in the test group, and new posts were cemented. The pull-out test (1 mm/minute speed) was used to measure the bond strength. Failure types were determined using a stereomicroscope. Mann-Whitney U, chi-square and Fisher-Freeman-Halton exact tests were used for statistical analysis. Results The bond strength values of the test (119.5 ± 36.86 N) and control (115.55 ± 55.44 N) groups did not differ significantly (p >.05). In terms of the percentage of failure types, there was a significant difference only in the test group between the mixed failure type and the other failure types (p <.05). Conclusions The re-application of FRC post did not seem to affect the bond strength. The distribution of failure types was similar between the control and test groups.
Collapse
Affiliation(s)
- Nuray İskefli
- İstanbul Medeniyet University, Faculty of Dentistry, Department of Prosthodontics, Istanbul, Turkey
| | - Elif Yeğin
- İstanbul Medeniyet University, Faculty of Dentistry, Department of Prosthodontics, Istanbul, Turkey
| | - Güzide Pelin Sezgin
- Biruni University, Faculty of Dentistry, Department of Endodontics, Istanbul, Turkey
| | - Sema Sönmez Kaplan
- Biruni University, Faculty of Dentistry, Department of Endodontics, Istanbul, Turkey
| | - Tuna Kaplan
- Biruni University, Faculty of Dentistry, Department of Endodontics, Istanbul, Turkey
| |
Collapse
|
2
|
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.
Collapse
|
3
|
AlAali KA, AlHelal A, Almahri JR, Albakri AA, Albani RM, Alhaizan YA, Alhamdan MM, Alaql NA, Binhasan M, Alhamdan EM, Albaqawi AH, Vohra F, Abduljabbar T. Influence of Conventional Polymer, Hybrid Polymer and Zinc Phosphate Luting Agents on the Bond Strength of Customized Zirconia Post in Premolars-An In-Vitro Evaluation. Polymers (Basel) 2022; 14:polym14040758. [PMID: 35215671 PMCID: PMC8879678 DOI: 10.3390/polym14040758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/02/2022] [Accepted: 02/04/2022] [Indexed: 02/01/2023] Open
Abstract
The aim was to identify the influence of conventional polymeric resin based cement (RC), hybrid polymer modified glass ionomer (RMGIC) and Zinc phosphate cement (ZPC) on the pull out strength of the customized zirconia post in premolars. Access cavity and root canals were performed in sixty premolar teeth with the standardized crown down technique (ProTaper Universal, Dentsply). Post space impressions were scanned, and the pre-sintered Zenostar Zr Translucent blanks (Weiland Dental, Pforzheim) were milled with the Opera-system to form the post. All prepared specimens were divided equally in three groups based on the cement type employed for luting as follows: group A: ZPC; group B (GC Fuji PLUS Capsule): RMGIC; group C (and RC (3M RelyX ARC). Ten specimens in each group were thermocycled (TC) at 5 and 55 °C in distilled water baths (40,000 cycles). Pull out bond strength was assessed using a universal testing machine at 0.5 mm/min. The means and standard deviations were compared using ANOVA and Tukey Kramer multiple comparisons tests. A significant difference among the cement groups as well as between TC and non-thermocycled (NTC) groups (p < 0.05) was observed. The highest tensile stress was demonstrated among group C (Resin, 69.89 ± 4.81 (NTC), 64.06 ± 4.36 (TC)) with the least in group A, (zinc phosphate, 43.66 ± 5.02 (NTC), 37.70 ± 5.10 (TC)) for both groups. Group A presented with 100% adhesive bond failures, followed by 80% in group C and 70% in group B, respectively. A similar outcome was observed in the TC group for the cement; however, unlike the NTC group, the TC group showed more cohesive failures compared to the NTC mixed failure. Dual cure polymer based cement demonstrated higher bond strength and efficient adhesive bonding of the customized Zr post with root dentine compared to zinc phosphate (non-polymeric) and RMGIC (hybrid polymer). Thermocycling compromised Zr post adhesive bonding to root dentin.
Collapse
Affiliation(s)
- Khulud A. AlAali
- Department of Clinical Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia
- Correspondence: (K.A.A.); (T.A.)
| | - Abdulaziz AlHelal
- Prosthetic Dental Science Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.A.); (M.M.A.); (E.M.A.); (F.V.)
| | - Jawaher R. Almahri
- Prosthodontics Postgraduate Resident, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Aroob A. Albakri
- General Dentist, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Ragad M. Albani
- Prosthodontics Postgraduate Resident, College of Dentistry, King Saud University, Riyadh 11671, Saudi Arabia;
| | - Yasmeen A. Alhaizan
- Restorative Postgraduate Resident, King Faisal Specialist Hospital, Riyadh 11211, Saudi Arabia;
| | - Mai M. Alhamdan
- Prosthetic Dental Science Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.A.); (M.M.A.); (E.M.A.); (F.V.)
| | - Naif A. Alaql
- Prosthodontic Department, Riyadh Specialized Dental Center, Ministry of Health, Riyadh 13226, Saudi Arabia;
| | - Mashael Binhasan
- Department of Restorative Dentistry, Division of Operative Dentistry, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia;
| | - Eman M. Alhamdan
- Prosthetic Dental Science Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.A.); (M.M.A.); (E.M.A.); (F.V.)
| | - Ahmed H. Albaqawi
- Department of Restorative Dental Science, College of Dentistry, University of Ha’il, Ha’il 55476, Saudi Arabia;
| | - Fahim Vohra
- Prosthetic Dental Science Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.A.); (M.M.A.); (E.M.A.); (F.V.)
| | - Tariq Abduljabbar
- Prosthetic Dental Science Department, College of Dentistry, King Saud University, Riyadh 11545, Saudi Arabia; (A.A.); (M.M.A.); (E.M.A.); (F.V.)
- Correspondence: (K.A.A.); (T.A.)
| |
Collapse
|
4
|
Influence of photodynamic therapy and different lasers Er,Cr:YSGG and Er,YAG on dentin conditioning bonded to conventional and bioactive cement. Photodiagnosis Photodyn Ther 2020; 33:102107. [PMID: 33246147 DOI: 10.1016/j.pdpdt.2020.102107] [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] [Received: 10/26/2020] [Revised: 11/13/2020] [Accepted: 11/20/2020] [Indexed: 11/24/2022]
Abstract
AIM The aim of the present study was to evaluate the bond integrity of bioactive cement (BAc) in contrast to conventional cement Calibra (C) after dentin treated with different surface conditioners (PDT, EYL, ECL) MATERIALS AND METHODS: Sixty non-carious permanent mandibular molars were disinfected and embedded in acrylic resin till cement-o-enamel junction. For homogeneity the buccal surface were grounded and polished. Samples were categorized into three main groups based on conditioning technique. Samples in group 1 and 2 dentin conditioned with Er,Cr:YSGG (ECL), group 3 and 4 surface treated with Er:YAG (EYL) and group 5 and 6 treated with photodynamic therapy (PDT).On conditioned surface bonding agent was applied and light cured. Samples from group 1,3,5 were bonded to Calibra (C). Whereas, specimens in group 2,4,6 were conditioned with bioactive cement (BAc) and subjected to ageing followed by shear bond strength testing (SBS) in universal testing machine. To detect significance difference between means of different groups analysis of variance (ANOVA) was performed followed by Tukey's post-hoc tests. RESULTS The maximum SBS was displayed in group 1, dentin conditioned with ECL and bonded to C (20.23 ± 0.47 MPa). Whereas, group 6, PDT of dentin to BAc demonstrated lowest bond integrity among experimental groups (12.97 ± 0.25 MPa). Bond strength of group 1, ECL-C (21.55 ± 3.08 MPa) and group 3 EYL-C (19.11 ± 0.65 MPa) were comparable (p > 0.05). Group 5 samples treated with PDT, MB-C (13.41±0.32 MPa) and group 6, MB-BAc (12.97 ± 0.25 MPa) were also comparable (p > 0.05) CONCLUSION: BAc bonded to dentin after surface conditioning with ECL, EYL and PDT presented lower SBS in comparison to conventional cement C. Further studies are required to extrapolate the current findings.
Collapse
|