Shear bond strength of different types of adhesive systems to dentin and enamel of deciduous teeth in vitro

Kensche, Anna; Dähne, Felix; Wagenschwanz, Constanze; Richter, Gert; Viergutz, Gabriele; Hannig, Christian

doi:10.1007/s00784-015-1560-y

Cited by 23 publications

(19 citation statements)

References 28 publications

(40 reference statements)

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“…The SEM images showed obvious changes in the dentin surface morphology following Er:YAG laser pretreatment with variable energy and frequency. Within a speci c energy (50-200 mJ) and frequency (5-20 Hz) range, the dentin tubules showed enhanced opening and protrusion of the intertubular surface dentin, which may promote the penetration of adhesive resin tags into the dentinal tubules and improve adhesion [24]. Further increases to the energy (250-300 mJ) and frequency (25)(26)(27)(28)(29)(30) led to the formation of surface cracks and disintegration of the structural dentin.…”

Section: Discussionmentioning

confidence: 99%

“…As the Er:YAG laser treatment was non-contact, no smear layer was formed on the dentin tubules, peritubular dentin, or intercellular dentin [25]. The Er:YAG laser treatment improved the dentin surface roughness and surface area by opening the dentinal tubules and facilitated the penetration of adhesive into the dentin tubules, resulting in improved bonding [24]. In contrast, drilling dentin with an air turbine hand-piece leads to the formation of a smear layer on the surface of the dentin, blocking the dentinal tubules as well as interfering with the penetration of the resin adhesive and bonding with restorative materials.…”

Section: Discussionmentioning

confidence: 99%

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Effects of Er:YAG laser pre-treatment on dentin structure and bonding strength of primary teeth: An in vitro study

WANG

Yang

ZHANG

et al. 2020

Preprint

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Background: To investigate the effects of Er:YAG laser pre-treatment on the dentin structure and shear bond strength of primary teeth. Methods: Dentin specimens were prepared using freshly extracted intact primary molars and divided randomly into four groups based on the surface treatment applied. The control and etchant groups received no treatment and conventional acid etching treatment, respectively, while the energy and frequency groups received laser surface treatment with variable energy and frequency parameters. The morphology was observed using scanning electron microscopy. The surface-treated dentin slices were bonded to resin tablets, followed by thermocycle treatment. The shear strengths were determined with a universal testing machine and de-bonded surfaces were observed with a stereomicroscope. Results: SEM observation showed that the surface morphology of the dentin slices changed after etching as well as after Er:YAG laser pre-treatment with different energy and frequency values. The dentin tubules opened within a specific energy (50-200 mJ) and frequency (5-20 Hz) range. Beyond this range, the intertubular dentin showed cracks and structural disintegration. Shear strength tests showed no significant change after acid etching. The shear strength increased significantly (P<0.05) after Er:YAG laser pre-treatment compared with that of the control group. The shear strength increased within the same energy (50-200 mJ) and frequency (5-20 Hz) range as the tubule opening, but not significantly (P>0.05). The most common mode of interface failure was adhesive (interface) failure, followed by mixed and resin cohesive failure. Conclusions: Er:YAG laser pre-treatment may improve the bonding strength between the dentin and the resin in primary teeth.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of Er:YAG laser pre-treatment on dentin structure and bonding strength of primary teeth: An in vitro study

WANG

Yang

ZHANG

et al. 2020

Preprint

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“…Evaluation methods for bond strength of dental materials in dentistry usually include the micro-tensile and shear bond strength test 8,[21][22][23][24][25][26] . Root dentin has lower potential for bonding with less exposure of dentinal tubules compared to coronal dentin 27) ; reagents used during root canal treatment can affect bond strength even more 13,22) .…”

Section: Shear Bond Strength and Post Retention Forcementioning

confidence: 99%

“…Bond strength significantly varied among the types of adhesive resin cements used. A number of studies have been undertaken to compare the bond strength of various resin cements to dentin 8,21,[23][24][25][26]28) . Most of these studies reported that adhesive resin cements, that require pretreatment, have higher bond strength compared to self-adhesive resin cements 23,24,26) .…”

Section: Shear Bond Strength and Post Retention Forcementioning

confidence: 99%

“…However inadequate adhesion between root dentin and posts have caused clinical complications such as post debonding [4][5][6] ; therefore it is important to have sufficient adhesion between root dentin and post material for adequate post retention. Studies on the adhesive or retention force between dentin, post, and core materials have been reported 7,8) ; however very few have investigated the relationship between bond strength of root dentin to resin composite and retention force of FRC posts.…”

Section: Introductionmentioning

confidence: 99%

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Effects of calcium hydroxide reagent on the bond strength of resin cements to root dentin and the retention force of FRC posts

et al. 2017

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The aim of this study was to determine the effects of calcium hydroxide (Ca(OH)2) treatment on bond strength of resin cements to root dentin and retention force of fiber-reinforced composite (FRC) posts. Bovine root dentin was endodontically prepared and treated with Ca(OH)2 for 7 days. Root dentin for bond strength test was adhered to resin-composite with resin cements. For pull-out test, posts consisting of FRC posts and resin-composites were fabricated and cemented to root. Shear bond and pull-out tests were performed using a universal testing machine. No significant differences in bond strength and post retention force were found between Ca(OH)2 treated and untreated groups. Significant differences were found among the cements. A positive correlation was indicated between bond strength of cements and retention force of FRC posts. In conclusion, Ca(OH)2 treatment on root dentin did not affect bond strength of resin cements and retention force of FRC posts.

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Synergistic effect of graphene oxide/calcium phosphate nanofiller in a dentin adhesive on its dentin bond integrity and degree of conversion. A scanning electron microscopy, energy dispersive X‐ray spectroscopy, Fourier transform infrared, micro‐Raman, and bond strength study

Almutairi

Kattan

Binmahfooz

et al. 2021

Microscopy Res & Technique

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The objective was to formulate and analyze a dentin adhesive incorporated with graphene oxide (GO) nanoparticle and calcium phosphate (CaP) composite. Methods comprising of scanning electron microscopy (SEM)–energy dispersive X‐ray spectroscopy (EDX), micro‐Raman spectroscopy, shear bond strength (SBS), and Fourier transform infrared (FTIR) spectroscopy were used to characterize nanoparticle composite, dentin bond toughness, degree of conversion (DC), and adhesive‐dentin interaction. Postsynthesis of GO nanoparticles, they were functionalized with CaP using standard process. The GO‐CaP composite was not added to experimental adhesive (negative control group, GO‐CaP‐0%), and added at 2.5 and 5 wt% to yield GO‐CaP‐2.5% and GO‐CaP 5% groups, respectively. Teeth were set to form bonded samples utilizing adhesives in three groups for SBS testing, with and without thermocycling. The homogenous diffusion of GO‐CaP composite was verified in the adhesive. Resin tags having standard penetrations were observed on SEM micrographs. The EDX analysis confirmed the occurrence of calcium, phosphorus, and carbon ions in the composite containing adhesives. The SBS test revealed highest mean values for GO‐CaP‐5% followed by GO‐CaP‐2.5%. The FTIR spectra verified the presence of apatite peaks and the micro‐Raman spectra showed characteristic D and G bands for GO nanoparticles. GO‐CaP composite in dentin adhesive may improve its bond strength. The addition of 5 wt% resulted in a bond strength that was superior to all other groups. GO‐CaP‐5% group demonstrated lower DC (to control), uniform distribution of GO and CaP composite within adhesive, appropriate dentin interaction, and resin tag formation.

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Shear bond strength of different types of adhesive systems to dentin and enamel of deciduous teeth in vitro

Abstract: The treatment of pediatric patients presents a great challenge in dental practice, and optimization of treatment processes is important.

Cited by 23 publications

References 28 publications

Effects of Er:YAG laser pre-treatment on dentin structure and bonding strength of primary teeth: An in vitro study

Effects of Er:YAG laser pre-treatment on dentin structure and bonding strength of primary teeth: An in vitro study

Effects of calcium hydroxide reagent on the bond strength of resin cements to root dentin and the retention force of FRC posts

Synergistic effect of graphene oxide/calcium phosphate nanofiller in a dentin adhesive on its dentin bond integrity and degree of conversion. A scanning electron microscopy, energy dispersive X‐ray spectroscopy, Fourier transform infrared, micro‐Raman, and bond strength study

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