Influence of photodynamic therapy and different lasers Er,Cr:YSGG and Er,YAG on dentin conditioning bonded to conventional and bioactive cement |
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| Affiliation: | 1. Department of Preventive Dental Science, Dar Al Uloom University, Riyadh, Saudi Arabia;2. Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia;3. Department of Prosthodontics, College of Dentistry, Prince Sattam bin Abdulaziz University, Alkharj, Saudi Arabia;4. Department of Oral and Maxillofacial Surgery and Diagnostic Science College of Dentistry, Prince Sattam Bin Abdullaziz University, Alkharj, Saudi Arabia;5. Department of dentistry, King Abdullah International Medical Research Center, King Saud bin Abdulaziz University for Health Sciences, King Abdulaziz Nations Guard Hospital, Riyadh, Saudi Arabia;6. Department of Restorative and Prosthetic Dental Sciences, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia;7. Department of Prosthodontics, College of Dentistry, Ibb University, Ibb, Yemen;1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil;2. Department of Restorative Dentistry, Discipline of Endodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil;1. Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University Al-Kharj, Saudi Arabia;2. Department of Preventive Dental Sciences, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia;1. Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queens University, Belfast, UK;2. Department of Ophthalmology, College of Medicine, University of Ibadan, Ibadan 200212, Nigeria;3. WHO VISION 2020, the Right to Sight, The Programme for the Elimination of Avoidable Blindness, Geneva, Switzerland;4. DE HEALTH, Geneva, Switzerland |
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| Abstract: | AimThe 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 MethodsSixty 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.ResultsThe 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)ConclusionBAc 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. |
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| Keywords: | Photodynamic therapy Calibra Bioactive cement Shear bond strength Er,Cr:YSGG Er:YAG |
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