Effects of Photodynamic Therapy on the Adhesive Interface of Fiber Posts Cementation Protocols

Ramos, Alcides de Amorim; Belizário, Lauriê Garcia; Venção, Ana Carolina; Jordão-Basso, Keren Cristina Fagundes; Rastelli, Alessandra Nara de Souza; Andrade, Marcelo Ferrarezi de; Kuga, Milton Carlos

doi:10.1016/j.joen.2017.08.035

Cited by 42 publications

(32 citation statements)

References 23 publications

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“…However, this was not observed in our study using laser confocal microscopy. Our results are in agreement with previous research, which observed the low formation of the hybrid layer and dentin penetrability (Cerqueira et al, ; Ramos et al, ). Consequently, the adhesion between Relyx U200 and GC Gold Label 1 with root dentin is mainly caused by direct chemical bonding (D'Alpino et al, ; McLean & Wilson, ; Ramos et al, ).…”

Section: Discussionsupporting

confidence: 94%

“…The bond strength of a material to the dentin substrate indicates the magnitude of adhesion that occurs at the adhesive interface (Ramos et al, ; Victorino et al, ). In our study, the chemically activated glass ionomer cement showed similar results to the self‐adhesive resin cement (Relyx U200), regardless of the third of the root that was evaluated.…”

Section: Discussionmentioning

confidence: 99%

“…Each of the specimens were divided into four quadrants and one image, with ×1,024 magnification, was obtained from each of these quadrants. The fracture pattern was classified into four categories: Type 1 (Adhesive): between the fiber post and the cement; Type 2 (Adhesive): between dentin and cement; Type 3 (Cohesive): within the cement and Type 4 (Mixed), according to Ramos et al (). Figure shows the different fracture patterns as previously described.…”

Section: Methodsmentioning

confidence: 99%

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The effectiveness of glass ionomer cement as a fiber post cementation system in endodontically treated teeth

Lorenzetti

Bortolatto

Ramos

et al. 2019

Microscopy Res & Technique

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This study compared the performance of a glass ionomer (GC Gold Label 1, GIC) as a fiber post cementation system for glass fiber posts with a self-adhesive resin cement (Relyx U200, RUC) and a conventional resin cement system (Scotchbond Muli-Purpose and Relyx ARC, RAC). Thirty endodontically treated canines were randomly divided in three groups (n = 10), according to the fiber post cementation system: (RAC)-Scotchbond Multi-Purpose and Relyx X ARC; (RUC)-Relyx U200 and (GIC)-GC Gold

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Section: Discussionsupporting

confidence: 94%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

The effectiveness of glass ionomer cement as a fiber post cementation system in endodontically treated teeth

Lorenzetti

Bortolatto

Ramos

et al. 2019

Microscopy Res & Technique

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“…They reported that PDT decreased bond strength values in the coronal region while showing similar values in the apical and middle thirds. Our results are similar to those found in that study, which used laser devices with 780-808-nm wavelengths and a 0.005% methylene blue dye (26). We concluded that the decrease in our study was due to the difficulty of removing the smear layer in the apical region, the decreasing number of dentine tubules toward the apical region, and the connection surface area being smaller in the apical region.…”

Section: Discussionsupporting

confidence: 90%

Farklı Fotoaktif Boyaların Epoksi Rezin Esaslı Kök Kanal Patının Adezyonuna Etkileri

Ozkocak

Göktürk

Kara

2021

Anadolu Kliniği Tıp Bilimleri Dergisi

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In this study, we aimed to evaluate the effects of four different photoactive dyes on the dentin adhesion of an epoxy resin-based root canal sealer. Methods: Sixty maxillary central incisors were used. Root canals were prepared up to the size Reciproc #40, and 2.5 mL of 5% NaOCl was used between each file. The teeth were divided into six groups: Group 1, distilled water (the control group); Group 2, methylene blue; Group 3, toluidine blue; Group 4, indocyanine green; Group 5, Congo red; and Group 6, diode laser. After final irrigation, each canal was irrigated with 2.5 mL of photoactive dye. Laser irradiation was applied for 1 min (940 nm wavelength, continuous mode, 1W). The canals were obturated with epoxy resin-based sealer and gutta-percha. Sections measuring 2 mm in thickness were taken from the apical, middle, and coronal thirds of the roots for the push-out test. Results: Although the photoactive dyes caused a decrease in the sealer bond strength values, there was no statistically significant difference from the control group or between the dyes. Diode laser irradiation increased bond strength, but there was again no significant difference. Bond strength values decreased from the coronal to the apical region (5.89±1.19, 3.93±0.76, and 3.18±0.63 MPa, respectively). Conclusion:We observed that the use of photoactive dyes to support root canal disinfection had no negative effect on the bond strength of a resin-based sealer.

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“…The positive effect of photodynamic therapy can also extend to adhesion when used as a decontamination protocol before cementation. We did not find any studies able to reveal the impact of PDT on prosthodontic cementation, while in endodontics and orthodontics, it had a negative impact or was effectless on the bond strength and mechanical properties of dentin from the intracanal prosthetic space [ 8 , 9 , 10 , 11 ] and bond strength of orthodontic brackets [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Photodynamic Therapy (PDT) in Prosthodontics: Disinfection of Human Teeth Exposed to Streptococcus mutans and the Effect on the Adhesion of Full Ceramic Veneers, Crowns, and Inlays: An In Vitro Study

et al. 2022

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The use of PDT in prosthodontics as a disinfection protocol can eradicate bacteria from tooth surfaces by causing the death of the microorganisms to which the photosensitizer binds, absorbing the energy of laser light during irradiation. The aim of the study was to investigate the capacity of PDT to increase the bond strength of full ceramic restorations. In this study, 45 extracted human teeth were prepared for veneers, crowns, and inlays and contaminated with Streptococcus mutans. Tooth surfaces decontamination was performed using a diode laser and methylene blue as a photosensitizer. The disinfection effect and the impact on tensile bond strength were evaluated by scanning electron microscopy (SEM) and pull-out tests of the cemented ceramic prosthesis. Results show that the number of bacteria was reduced from colonized prepared tooth surfaces, and the bond strength was increased when PDT was used. In conclusion, the present study indicates that using PDT as a protocol before the final adhesive cementation of ceramic restorations could be a promising approach, with outstanding advantages over conventional methods.

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Effects of Photodynamic Therapy on the Adhesive Interface of Fiber Posts Cementation Protocols

Abstract: PDT presented negative effects on the bond strength to dentin in the cervical third after cementation using Relyx ARC and on the dentinal penetrability of the etch-and-rinse adhesive system in the cervical and apical thirds of the prosthetic space.

Cited by 42 publications

References 23 publications

The effectiveness of glass ionomer cement as a fiber post cementation system in endodontically treated teeth

The effectiveness of glass ionomer cement as a fiber post cementation system in endodontically treated teeth

Farklı Fotoaktif Boyaların Epoksi Rezin Esaslı Kök Kanal Patının Adezyonuna Etkileri

Photodynamic Therapy (PDT) in Prosthodontics: Disinfection of Human Teeth Exposed to Streptococcus mutans and the Effect on the Adhesion of Full Ceramic Veneers, Crowns, and Inlays: An In Vitro Study

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