A comparative evaluation of the effect of phototherapy of fiber post on its bond strength to dental composite

Al-Qahtani, Amal S.; AlZain, Sahar; AlHamdan, Eman M.; Tulbah, Huda I.; Alsheikh, Hana Mohammed Al; Naseem, Mustafa; Vohra, Fahim

doi:10.1016/j.pdpdt.2018.08.016

Cited by 23 publications

(6 citation statements)

References 24 publications

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“…2 This may be due to loss of remaining dentinal thickness (RDT) of root canal walls along with dentin desiccation and loss of collagen crosslinking. 3 All these factors contribute to the reduced stiffness and fracture resistance of the tooth. 4 Therefore, restoring and retaining such compromised structure necessitates the post-placement for retention and adhesion of coronal restorations.…”

Section: Introductionmentioning

confidence: 99%

“…4 Therefore, restoring and retaining such compromised structure necessitates the post-placement for retention and adhesion of coronal restorations. 3,5 Traditionally, cast metal posts are used to retain core buildup on root canal treated teeth (RCT). 6 It exhibits a higher elastic modulus than dentin, which might be the reason for root fracture and failure.…”

Section: Introductionmentioning

confidence: 99%

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RETRACTED: Comparison of adhesive bond strength among fiber reinforced post and core with different cementation techniques: In vitro study

AlHelal

AlShehri

AlOmairy

et al. 2021

Journal of Applied Biomaterials & Functional Materials

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Aim: To investigate push-out bond strength (PBS) of fiber post to radicular dentin after using different cementation techniques. Material and methods: Sixty single-rooted premolars were disinfected and cleaned by mechanical instrumentation. S1, S2, and SX were used for canal shaping and finishing of the canal was carried out using F1 and F2. This was followed by constant irrigation and smear layer removal using 17%EDTA. The canal was dried filled with gutta-percha and canal space was prepared using a peso reamer. Based on cementation techniques, samples were randomly allocated into six groups. Group 1: One-step Monoblock MC; Group 2: One-step, Monoblock MC-NA (no adhesive) GFP; Group 3: One-step, RX-MC-Monoblock; Group 4: Two-step, RX-MC; Group 5: Two-step, RX-FZ; and Group 6: Two-step RX-FZ-custom post. All specimens were mounted in polyvinyl pipes using acrylic resin up to cement enamel junction. All specimens were mounted in a universal testing machine subjected to push-out forces at a speed of 0.5 mm/min. Five samples from each group were sputter-coated with 6 nm gold thickness for 300 s at 250 mA. The coated specimens were assessed under the scanning electron microscope (SEM). Analysis of variance (ANOVA) and Tukey Kramer multiple comparisons tests were performed to compare means among groups maintaining the level of significance at ( p < 0.001). Results: The highest PBS was displayed in RX-MC-Monoblock (199.020 ± 21.432 MPa). Whereas, lowest PBS was found in Monoblock MC-NA (no adhesive)-GFP (76.440 ± 9.468 MPa). Among one-step groups, RX-MC Monoblock exhibited the highest PBS (199.020 ± 21.432 MPa) comparable to one-step Monoblock MC (134.28 ± 19.37 MPa) ( p > 0.05). Similarly, among two-steps groups, two-step RX-MC demonstrated significantly higher PBS values than two-step RX-FZ (143.340 ± 23.68 MPa) and RX-FZ-custom post (86.90 ± 7.41 MPa) ( p < 0.05). Conclusion: One-step RX-MC-Monoblock technique using self-adhesive cement and core foundation composite resin material multicore flow when cured simultaneously exhibited the highest bond integrity of post retention compared to other cementation technique.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

RETRACTED: Comparison of adhesive bond strength among fiber reinforced post and core with different cementation techniques: In vitro study

AlHelal

AlShehri

AlOmairy

et al. 2021

Journal of Applied Biomaterials & Functional Materials

Self Cite

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“…12,13 On the other hand, many authors proved an increased bond strength values of glass fiber posts when the process is applied with specific parameters. [14][15][16] Diode lasers with wavelengths varying from (460-980 nm) are considered soft tissue laser devices due their high absorption in hemoglobin and melanin. 17 Diode laser surface treatment has been applied previously in attempt to modify the glass fiber post surface topography through heat energy transfer to the post surface.…”

Section: Introductionmentioning

confidence: 99%

“…Although previous studies showed an increased post surface roughness, the diode laser surface treatment remains an ineffective way in increasing the bond strength values of glass fiber posts. 15,18 In addition, visual color changes were always evident when diode laser is applied on glass fiber posts. 19,20 Unfortunately, no studies compared different diode laser parameters individually and the effect of these parameters on the adhesive properties of glass fiber posts.…”

Section: Introductionmentioning

confidence: 99%

Effect of Posts Surface Treatments on the Pull-out Bond Strength of Glass Fiber Post to Root Dentin “A Comparative In-Vitro Study”

Mekky

El-Hakim

Shokry

2022

Journal of Fundamental and Clinical Research

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Background: Glass fiber posts is the gold standard for the treatment of endodontically treated teeth with insufficient coronal tooth structure. Although it offers better retention and stress distribution when used, debonding is still the most common mode of failure for glass fiber posts.To overcome this problem, multiple surface treatments were tried to modify the post surface either chemically or mechanically to improve the post adhesion to resin cements. Objectives: To evaluate the pull-out bond strength of glass fiber posts to root dentin after different surface treatments using air-borne particle abrasion, diode laser and Er-Cr:YSGG laser. Materials and Methods: Forty freshly extracted single rooted teeth were root canal treated and divided into four groups according to surface treatment of the post: (Control, air borne-particle abrasion with alumina-oxide particles, irradiation with diode laser and irradiation with Er-Cr:YSGG). Pull-out test was done using a universal testing machine and the mode of failure of each sample was inspected under a stereomicroscope. Results: The Er-Cr:YSGG laser irradiation group showed the highest statistically significant bond strength value among all groups. Diode laser group showed the least bond strength value among all other groups significantly. No significant difference was found between air-borne particle abrasion and control groups. Conclusion: Er-Cr:YSGG laser irradiation improved the pull-out bond strength of the glass fiber post to root dentin compared to diode laser and air-borne particle abrasion.

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“…Recently, laser application using photodynamic therapy (PDT) has been extensively and effectively used in dentistry ( Al-Qahtani et al, 2018 , Alkhudhairy et al, 2018b , Alkhudhairy et al, 2018a ; , Alkhudhairy et al, 2019 ) Among lasers, Erbium yttrium scandium gallium garnet (Er:Y 3 Al 5 O 12 ) (Er,Cr:YSGG) laser (ECL) has gained admiration among orthodontists in enamel conditioning ( Almoammar, 2019 ) and bleached enamel reversal ( Khan et al, 2019 ) and the displayed results are convincing. Similarly, ECL has been used to repair zirconia and LDC and have unveiled encouraging outcomes ( Miranda et al, 2014 , Cho et al, 2012 ).…”

Section: Introductionmentioning

confidence: 99%

Lithium di silicate ceramic surface treated with Er,Cr:YSGG and other conditioning regimes bonded to orthodontic bracket

Alqerban

2021

The Saudi Dental Journal

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Aim To assess bond integrity and modes of failure of metallic brackets to lithium disilicate ceramics (LDC) conditioned with Er,Cr:YSGG laser (ECL). Material and methods Sixty LDC were arbitrarily allocated into six groups (n = 15) according to the type of ceramic surface conditioning treatment. Group 1 surface treated with silane (S) only, group 2 surface etched with hydrofluoric acid (HF)+ S, group 3 surface conditioned with HF+ ultrasonic bath (UB)+ S, group 4 sand blasting (SB) of glass ceramic surface with 50 µm Al 2 O 3 , group 5 surface conditioned with self-etch ceramic primer (SECP) and in group 6 surface treated with ECL + S. After conditioning, the specimens were positioned in a universal testing device for shear bond strength (SBS) testing. Adhesive Remnant Index (ARI) was used to determine sites of bond failure. Among experimental groups analysis of variance (ANOVA) and Tukey multiple comparison test was used at a significance level of (p < 0.05). Results The highest SBS values were observed in group 3 HF+ UB + S (18.21 ± 1.241) and the lowest SBS values were displayed group 1 surface treated with S only (5.21 ± 0.23). Specimens surface conditioned in group 2 with HF+ S (17.85 ± 1.25), group 3 HF+ UB + S (18.21 ± 1.241) and group 6 ECL + S (17.09 ± 1.114) unveiled comparable SBS values (p > 0.05). Conclusion LDC conditioned with ECL at (4.5 W and 30 Hz) has a potential to be used in clinical settings alternate to HF acid.

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A comparative evaluation of the effect of phototherapy of fiber post on its bond strength to dental composite

Cited by 23 publications

References 24 publications

RETRACTED: Comparison of adhesive bond strength among fiber reinforced post and core with different cementation techniques: In vitro study

RETRACTED: Comparison of adhesive bond strength among fiber reinforced post and core with different cementation techniques: In vitro study

Effect of Posts Surface Treatments on the Pull-out Bond Strength of Glass Fiber Post to Root Dentin “A Comparative In-Vitro Study”

Lithium di silicate ceramic surface treated with Er,Cr:YSGG and other conditioning regimes bonded to orthodontic bracket

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