The Effect of Diode and Er,Cr:YSGG Lasers on the Bond Strength of Fiber Posts

Borges, Caroline Cristina; Palma‐Dibb, Regina Guenka; Rodrigues, Flávia Cássia Cabral; Plotegher, Fernanda; Rossi‐Fedele, Giampiero; Sousa‐Neto, Manoel Damião; Souza‐Gabriel, Aline Evangelista

doi:10.1089/photob.2019.4668

Cited by 13 publications

(12 citation statements)

References 42 publications

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“…Concerning the correlation between the depth of cure and degree of conversion of resin composite by micro-hardness, no significant difference was noted in the hardness ratio between bulk fill composite and traditional resin base composite [25]. The Er,Cr:YSGG Laser irradiation changed features of dentin surface and enhanced the bond strength of resin cement and fiber post to dentin [26].…”

Section: Discussionmentioning

confidence: 93%

Fracture Resistance of Three Post Types in the Restoration of Anterior Primary Teeth

Kadkhodaei¹,

Mehran²,

Haghgoo³

et al. 2020

TODENTJ

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Background: Extensive restorative treatments of anterior primary teeth are challenging in pediatric dentistry. Objective: This study aimed to compare the fracture resistance of three post types for restoring the anterior primary teeth. Methods: This in-vitro study was carried out on 90 extracted maxillary anterior primary teeth with intact roots. They were randomly allocated into six groups to be restored with conventional composite resin post, X-tra fill composite resin post, Tetric N Ceram composite resin post, prefabricated glass fiber post with conventional composite build-up, prefabricated glass fiber post with X-tra fill composite build-up, and prefabricated glass fiber post with Tetric N Ceram composite build up. The samples were polished and placed in acrylic resin blocks with 1 mm of part of cervical root being out, thermocycled (×5000) and tested for fracture resistance. Intra-class correlation test, Kruskal-Wallis test and one-way ANOVA were used for statistical analyses (α=0.05). Results: The mean fracture resistance was significantly different among the six groups. It was the highest in prefabricated glass fiber post with conventional composite build-up (418.64 N), prefabricated glass fiber post with X-tra fill composite build-up (403.63 N) and prefabricated glass fiber post with Tetric N Ceram composite build up (361.63 N); and the lowest in Tetric N Ceram group (280.65 N). The groups were significantly different concerning the fracture strength and fracture state. Conclusion: Since the anterior teeth restored with prefabricated glass fiber posts were far more fracture resistant, and prefabricated glass fiber posts can be promisingly used for the restoration of anterior primary teeth.

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Section: Discussionmentioning

confidence: 93%

Fracture Resistance of Three Post Types in the Restoration of Anterior Primary Teeth

Kadkhodaei¹,

Mehran²,

Haghgoo³

et al. 2020

TODENTJ

View full text Add to dashboard Cite

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“…It is worth mentioning that other researchers have used the diode irradiation but following post space preparation [ 69 , 70 , 71 ]. The results are not comparable, as this ex vivo scenario examined the influence of laser irradiation in laser-assisted endodontics and its subsequent restoration, not laser-assisted prosthodontics.…”

Section: Discussionmentioning

confidence: 99%

Influence of Laser Irradiation Settings, during Diode-Assisted Endodontics, on the Intraradicular Adhesion of Self-Etch and Self-Curing Luting Cement during Restoration—An Ex Vivo Study

Farmakis

Beer²,

Tzoutzas

et al. 2022

Materials

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Background: Diode-assisted endodontics is nowadays utilized for pulp space disinfection, but little is known on the bonding potential of this lased root dentin when the tooth is restored with an intracanal polymer post. Objectives: to investigate the influence of diode laser irradiation settings, in laser-assisted endodontics, on the intraradicular bonding of composite materials. Methods: Sixteen two-rooted, maxillary first premolars were collected, prepared up to F4 (Protaper Universal. Dentsply-Maillefer, Ballaigues, Switzerland), and randomly assigned in two groups: group A (chopped mode or short pulse), diode irradiated according to protocol, pulse 25 ms, power 2.5 W, and group B (microchopped mode or ultrashort pulse), pulse 25 μs, peak power 12 W (both groups GentleRay. KaVo Dental, Biberach an der Riss, Germany). Buccal canals were irradiated, palatal ones served as controls. Canals were then obturated, post space was created in all canals, and quartz-fiber posts (ICE light Danville. Danville Materials, San Ramon, CA, USA) were cemented by self-etch self-curing cement (Max Cem Elite. Kerr, West Collins Orange, CA, USA) (Max Cem Elite. Kerr, Brea, CA, USA). A week later, teeth were sectioned horizontally in 1 mm increments. Push-out test was conducted in a Zwick testing machine (Zwick Roell, Ulm, Germany) at 1 mm/min speed, and the force required to dislodge the post from each specimen (F-max) was recorded. Weibull regression models were applied for statistical analyses. Results: Differences in F-max by group (control vs. chopped mode vs. microchopped mode) and height (meaning the apical-to-coronal position of each specimen along the root) were statistically significant (p < 0.05 in all cases). Conclusions: Short pulses (or chopped mode) had a profound positive effect on the quality of intraradicular bonding, while Ultrashort pulses (or microchopped mode) affected it negatively. In addition, apically positioned bonding proved weaker compared with more coronally located specimens.

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“…Scanning electron microscopy is a common method of examining surface details by generating a three-dimensional image. This technique allows a direct examination performed at a high resolution [ 7 , 23 ]. In the present study, we verified the biofilm formation on the prepared areas of teeth.…”

Section: Discussionmentioning

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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The Effect of Diode and Er,Cr:YSGG Lasers on the Bond Strength of Fiber Posts

Cited by 13 publications

References 42 publications

Fracture Resistance of Three Post Types in the Restoration of Anterior Primary Teeth

Fracture Resistance of Three Post Types in the Restoration of Anterior Primary Teeth

Influence of Laser Irradiation Settings, during Diode-Assisted Endodontics, on the Intraradicular Adhesion of Self-Etch and Self-Curing Luting Cement during Restoration—An Ex Vivo Study

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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