Dentin bond strength of bioactive cement in comparison to conventional resin cement when photosensitized with Er,Cr:YSGG Laser

Alkhudhairy, Fahad; Al-Johany, Sulieman S.; Naseem, Mustafa; Bin-Shuwaish, Mohammed S.; Vohra, Fahim

doi:10.12669/pjms.36.2.1284

Cited by 14 publications

(16 citation statements)

References 19 publications

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“…1 An intimate bond between the adhesive and dentin certifies that the resin composite material would bear the adversities of the dynamic oral environment (temperature and pH fluctuations). 2 To improve the mechanical properties of dentin adhesives, researchers have tried various strategies. 3 One of the approaches is to incorporate bioactive inorganic fillers in the adhesive.…”

Section: Introductionmentioning

confidence: 99%

“…9 Formerly, calcium-fluoride (CaF 2 ) particles have been added to various dental materials like pit and fissure sealants, glass ionomer cement (GIC), and adhesives with encouraging results. 5,11,12 A previous study used CaF 2 nanoparticle fillers in the adhesive and reported remineralization of caries-affected dentin. 13 In another study, Mitwalli et al also witnessed and demonstrated that CaF 2 containing nanocomposites revealed resilient antibacterial and ion releasing properties without any significant effect exerted on the material's mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Adhesive bond integrity of Y‐TZP post with calcium fluoride infiltrated resin dentin adhesive: An SEM, EDX, FTIR and micro‐Raman study

AlHamdan

Al-Saleh

AlRefeai

et al. 2021

Surface & Interface Analysis

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The study aimed to synthesize calcium fluoride (CaF 2 ) nanoparticles and compare the push-out bond strength and viscosity of experimental adhesive (EA) and EA with 5 wt.% CaF 2 (CAF-5%). The CaF 2 nanoparticles were synthesized and then characterized with scanning electron microscopy (SEM)-energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR), and micro-Raman spectroscopies. CaF 2 nanoparticles were incorporated in the adhesives to yield two groups; gp-1: EA-CAF-0% (control) and gp-2: CAF-5%. Canals of 20 teeth (N = 20) were prepared, and then yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramic posts were cemented. Adhesives were assessed for push-out bond strength and rheology. CaF 2 filler was seen as irregularly shaped agglomerates on SEM. The EDX analysis demonstrated the presence of calcium and fluoride for the CAF-5% group. The FTIR indicated characteristic bands for CaF 2 containing materials. The micro-Raman spectra of CaF 2 nanoparticles demonstrated the presence of CaF 2 by showing strong bands at 840 cm À1 , 1380 cm -1, and 1400 cm À1 for fluorine and 950 cm À1 and 1080 cm À1 for calcium ions. The highest push-out bond strength values were obtained for CAF-5% group samples (cervical: 9.67 ± 1.46 MPa, apical: 8.66 ± 1.24 MPa), and both adhesives revealed adhesive-dentin interfacial fractures. The CAF-5% adhesive also revealed comparable rheological properties with the controls. The addition of CaF 2 nanoparticles in the adhesive improved its push-out bond strength to Y-TZP post and root dentin, although CAF-5% showed reduced viscosity on rheological assessment (compared with the controls).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adhesive bond integrity of Y‐TZP post with calcium fluoride infiltrated resin dentin adhesive: An SEM, EDX, FTIR and micro‐Raman study

AlHamdan

Al-Saleh

AlRefeai

et al. 2021

Surface & Interface Analysis

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“…28 Moreover, this type of failure mode is also related to type of substrate, method of SBS testing and mode of conditioning method. 10–12 In addition, debonded samples in group 3, 4, 5, 7 and 8 exhibited cohesive and admixed failure types. Available evidence suggests better adhesion is associated with high repair bond values and this method of failure.…”

Section: Discussionmentioning

confidence: 94%

“…8,9 Therefore, a direct repair of such restorations has to be considered as a more viable option. The repair procedure involves surface treatment of the fractured ceramic interface to create roughness through mechanical means to increase surface area, such as air abrasion (AA); laser irradiation 2,[10][11][12][13] or chemical means to increase the wettability for bonding, by acid etching with hydrofluoric acid (HFA) and bonding with Silane coupling agents. 2,14,15 The treated surface is then ready to receive an adhesive composite resin material to restore the defect.…”

Section: Introductionmentioning

confidence: 99%

Repair strength and surface topography of lithium disilicate and hybrid resin ceramics with LLLT and photodynamic therapy in comparison to hydrofluoric acid

Maawadh

Almohareb

Al-Hamdan

et al. 2020

Journal of Applied Biomaterials & Functional Materials

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Aim: The aim was to compare the repair bond strength and surface topography of lithium disilicate ceramics (LDC) and hybrid resin ceramics (HRC) using different surface conditioning treatments [low level laser therapy (LLLT), photodynamic therapy (PDT), hydrofluoric acid (HF) with silane and air abrasion (AA) and silane]. Material and method: Sixty specimens each of LDC and HRC were used. Discs were prepared for each group (6 × 2 mm), conditioned using different regimes. Specimens in group 1 and 5 were laser irradiated using Er,Cr:YSGG (ECYL), group 2 and 6 were conditioned using methylene blue photosensitizer (PDT), group 3 and 7 surface was treated with hydrofluoric acid and silane (HFA-S), group 4 and 8 conditioned with Al2O3 air abrasion and silane (AA-S). A Porcelain Repair Kit was used according to manufacturer recommendation in all samples. Peak universal bond adhesive was rubbed on ceramic surface and then bonded with composite resin. For shear bond strength testing the specimens were placed in a universal testing machine. A stereomicroscope at 40x magnification was used to analyse failure pattern. Five specimens in each group after surface treatment were evaluated for surface changes and topography using scanning electron microscopy. The mean repair bond strength was calculated using ANOVA and Tukey’s post hoc test at a significance level of ( p < 0.05). Result: The highest repair bond strength was observed in group 3 (LDC) (20.57 ± 3.58 MPa) (HFA-S), whereas, the lowest score was displayed in Group 2 (LDC) using methylene blue photosensitizer (MBPS) (12.18 ± 1.08 MPa). Similarly, in HRC the highest repair SBS was presented in group 8 (AA-S) (20.52 ± 2.51 MPa) and the lowest SBS values were exhibited by PDT treated group 6 (13.22 ± 0.62 MPa). Conclusion: A combination of mechanical and chemical surface treatments should be used in order to achieve adequate repair bond strength between resin composites and ceramic interface of LDC and HRC.

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“…It also provides a comparative analysis with other investigational groups. 14 In the present study, two different classes of photosensitizers were assessed. MBP and TB from class Phenothiazinium whereas, CP and P from natural class photosensitizers.…”

Section: Discussionmentioning

confidence: 99%

Influence of synthetic and natural photosensitizers activated by photodynamic therapy on extrusion bond strength of fiber post to radicular dentin

Almadi

Alkahtany²,

Almutairi³

2021

Pak J Med Sci

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Objective: To assess the effect of different photosensitizers activated by low-level laser therapy on EBS of glass fiber post to radicular dentin. Methods: This study was conducted at King Saud University from January 2021 to March 202. Fifty maxillary central incisors were sanitized and decoronated. NiTi was used for mechanical instrumentation of the canal. All canals were shaped, cleaned and obturated with gutta-percha. Post space was made using peso reamers. Four Division of groups were made according to photosensitizers used (n=10). Group-1: MBP at 100mg/l, Group-2: Phycocyanin at 100mg/l, Group-3: CP at 500mg/l, and Group-4 toluidine blue photosensitizer (TB). Lasers were used for activation of photosensitizers. In Group-5 samples were irrigated using sodium hypochlorite NaOCl +17% EDTA. Posts were cemented and teeth sectioned into apical, coronal and middle. For EBS all samples were subjected to a universal testing machine. Fracture patterns were analyzed using stereomicroscope. To compare EBS at different segments One-way analysis of variance (ANOVA) and Tukey multiple comparison tests (p=0.05) was performed. Results: The maximum value of EBS was shown in Group-2 radicular canal treated with CP with 17% EDTA at all three levels cervical (8.61±1.32 MPa), middle (6.81±0.73 MPa), and apical (5.51±0.25 MPa). Similarly, the minimum value of EBS was displayed in Group-5 canal irrigated with 2.25% NaOCl +17% EDTA (control) coronal (6.10±1.77 MPa), middle (5.11±0.75 MPa), and apical (3.60±0.94 MPa). Intragroup assessment disclosed a decrease in EBS from cervical one-third to apical one-third in all groups Conclusion: P, CP, and TB along with EDTA have the potential to be used as canal disinfectant and favors the bonding of GFP to radicular dentin using self-etch adhesive resin. doi: https://doi.org/10.12669/pjms.37.7.4331 How to cite this:Almadi KH, Alkahtany MF, Almutairi B. Influence of synthetic and natural photosensitizers activated by photodynamic therapy on extrusion bond strength of fiber post to radicular dentin. Pak J Med Sci. 2021;37(7):---------. doi: https://doi.org/10.12669/pjms.37.7.4331 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Dentin bond strength of bioactive cement in comparison to conventional resin cement when photosensitized with Er,Cr:YSGG Laser

Cited by 14 publications

References 19 publications

Adhesive bond integrity of Y‐TZP post with calcium fluoride infiltrated resin dentin adhesive: An SEM, EDX, FTIR and micro‐Raman study

Adhesive bond integrity of Y‐TZP post with calcium fluoride infiltrated resin dentin adhesive: An SEM, EDX, FTIR and micro‐Raman study

Repair strength and surface topography of lithium disilicate and hybrid resin ceramics with LLLT and photodynamic therapy in comparison to hydrofluoric acid

Influence of synthetic and natural photosensitizers activated by photodynamic therapy on extrusion bond strength of fiber post to radicular dentin

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