Longitudinal Evaluation of Bond Strength to Enamel of Dental Adhesive Systems Associated with Nd:YAG Laser

Barcellos, Daphne Câmara; Batista, Graziela Ribeiro; Pucci, César Rogério; Persici, E S; Borges, Alessandra Bühler; Torres, C.R.G.; Fonseca, Beatriz Maria da; Gonçalves, Sérgio Eduardo de Paiva

doi:10.2341/13-181-l

Cited by 8 publications

(8 citation statements)

References 27 publications

(38 reference statements)

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“…39–41 Recent studies have shown that laser treatment of the enamel surface at energy levels of 60 mJ or lower causes the formation of a glass-like surface, while treatment at higher energy levels results in craters and cracks. 42,43 According to Barcellos et al, 44 Nd:YAG laser irradiation significantly reduced the bond strength in bovine incisor enamel. Rattanacharoenthum et al 45 showed that the bond strength of sealant to laser-irradiated enamel was significantly lower than that of phosphoric acid-etched enamel.…”

Section: Discussionmentioning

confidence: 99%

Influence of Laser and Ozone Pretreatment on the Shear Bond Strength of Fissure Sealants: An In Vitro Comparative Study

Celik

Yapar

Karalar

et al. 2020

Journal of Advanced Oral Research

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Aim: To evaluate the shear bond strength (SBS) of 3 fissure sealants used alone and with ozone and laser pretreatment. Materials and Methods: For the SBS test, the flattened enamel surfaces of 90 healthy third molars were randomly divided into nine groups ( n = 10 for each groups), based on different sealants (BeautiSealant, Fuji Triage, and Grandio Seal) and pretreatment conditions (no pretreatment, pretreatment with ozone, and pretreatment with neodymium-doped yttrium aluminum garnet [Nd:YAG laser]). Ozone was applied for 30 s in caries superficial mode, and Nd:YAG laser was applied for 60 s. After the pretreatment procedures, sealants were placed inside a mold on the enamel surface. SBS was measured with a universal testing machine. Data were analyzed using analysis of variance. Tukey’s multiple comparison tests were applied to determine the difference between the groups (α = 0.05). Results: The lowest SBS was observed in the Fuji triage group. Nd:YAG laser and ozone did not affect the SBS of BeautiSealant. However, significant differences were determined in the Fuji triage and Grandio Seal groups after pretreatment procedures ( P < .05). Conclusion: Ozone and laser can be employed to disinfect fissures before BeautiSealant application.

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Section: Discussionmentioning

confidence: 99%

Influence of Laser and Ozone Pretreatment on the Shear Bond Strength of Fissure Sealants: An In Vitro Comparative Study

Celik

Yapar

Karalar

et al. 2020

Journal of Advanced Oral Research

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“…The technique used by Gonçalves and others proposed to apply the laser irradiation on the unpolymerized adhesive system, which differed from the methodology of the present study, in which irradiation was performed on a resin sealer. The difference in the composition of the material may have interfered in the effectiveness of the technique, considering that adhesive systems are translucent materials without fillers, containing solvents that favor their volatilization during laser irradiation [40]. Whereas the resin sealer has a filler as well as greater viscosity and opacity, properties that may have acted as Bbarriers^, interfering in the action of laser on the enamel surface, thus favoring the progression of the demineralizing process.…”

Section: Discussionmentioning

confidence: 99%

Conventional and experimental treatments for pit and fissure sealing associated with ND:YAG laser

et al. 2017

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Objective The aim of this study was to evaluate the efficacy of different treatments for sealing pits and fissures (FF) on enamel surface against artificial caries lesions. Material and methods Thirty sound human premolar crowns were randomly divided into six groups (n = 5), according to FF treatment: C, control (no treatment); L, irradiation with Nd:YAG laser (80 mJ/10 Hz/1064 nm/60 s); F, FluroShield (Dentsply); F+L, FluroShield + Nd:YAG laser; HA+A, hydroxyapatite powder bonded to the adhesive system (Universal Single Bond, 3M ESPE); and HA+A+L, hydroxyapatite mixing associated with laser irradiation. After treatment, the samples were immersed in artificial caries solution for 14 days. Occlusal surfaces were evaluated by laser fluorescence before and after treatments in order to confirm caries formation. Samples were sectioned longitudinally to prepare slides for polarized light microscopy evaluation, to provide three measurements of the depth of caries cavities formed. Data were submitted to one-way ANOVA, Tukey tests (p < 0.05), and Dunnett's test to compare variables. Results ANOVA showed statistically significant differences among groups (p = 0.04). Group L differed significantly from group C. The other treatments showed no statistically significant differences between groups. Conclusion Treatment with Nd:YAG laser presented greater pit and fissure sealing of incipient caries lesions.

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“…This technique to smooth and flatten the surface reduces the incorporation of air bubbles into the body of the material. 7,15,21,22,23,24,25 Light curing was performed for 40 seconds on each surface, using halogen light (Foto Optilight LD Max, Gnatus -50/60 Hz), with the active tip of the equipment directly touching the glass slides. 7,19,26 Specimens were removed from the matrix after a 10 minute mean time.…”

Section: Preparation Of Specimensmentioning

confidence: 99%

Surface morphologic evaluation of orthodontic bonding systems under conditions of cariogenic challenge

et al. 2019

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Orthodontic bonding systems are submitted to demineralization and remineralization dynamics that might compromise their surface smoothness, and favor biofilm aggregation and caries development. The aim of the present study was to evaluate the effects of a cariogenic challenge model (in vitro pH-cycling model) on the surface roughness and topography of 3 bonding materials: Transbond TM XT (XT), Transbond TM Plus Color Change (PLUS) and Fuji Ortho TM LC (FUJI), by means of Atomic Force Microscopy (AFM). Six specimens with standardized dimensions and surface smoothness were fabricated per group, and the materials were manipulated in accordance with the manufacturers' instructions. No polishing was necessary. AFM tests were performed before and after pH-cycling, taking 3 readouts per specimen. The roughness results (Ra) were obtained at nanometric levels (nm) and surface records were acquired in two-and three-dimensional images of height and lock-in phase of the material components. The surfaces of all groups analyzed in the study were morphologically altered, presenting images suggestive of matrix degradation and loss of matrix-load integrity. FUJI presented the greatest increase in surface roughness, followed by XT and PLUS, respectively (p≤0.001). Nevertheless, the roughness values found did not present sufficient degradation to harbor bacteria. The surface roughness of all tested materials was increased by pH-cycling. The use of materials capable of resisting degradation in the oral environment is recommended, in order to conserve their integrity and of the surrounding tissues.

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Longitudinal Evaluation of Bond Strength to Enamel of Dental Adhesive Systems Associated with Nd:YAG Laser

Cited by 8 publications

References 27 publications

Influence of Laser and Ozone Pretreatment on the Shear Bond Strength of Fissure Sealants: An In Vitro Comparative Study

Influence of Laser and Ozone Pretreatment on the Shear Bond Strength of Fissure Sealants: An In Vitro Comparative Study

Conventional and experimental treatments for pit and fissure sealing associated with ND:YAG laser

Surface morphologic evaluation of orthodontic bonding systems under conditions of cariogenic challenge

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