Bond strength and nanoroughness assessment on human pretreated cementum surfaces

Toledano, Manuel; Osorio, Estrella; Aguilera, Fátima S.; Gomes, Gilberto; Perdigão, Jorge; Osorio, Raquel

doi:10.1016/j.jdent.2010.05.011

Cited by 4 publications

(5 citation statements)

References 25 publications

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“…Toldeno et al conducted a study to compare and analyse the bond strength of various adhesives and nanoroughness on pretreated cementum surfaces and found that an etch-rinse single bond had comparatively higher bond strength on cementum surfaces than the other adhesives. The higher bond strength of the cementum surface was observed because of the increased surface bonding area with etchant and resin infiltration from the adhesives enhancing the bond strength of the cementum surfaces [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Bond Strengths Between Dual Cure Resin Cement and Light Cure Resin Cement in Root Surface Indirect Restorations: An In Vitro Analysis Study

Desai,

S M

2024

Cureus

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Aim The aim of this study was to evaluate the shear bond strength between dual cure and light cure resin cements in root surface indirect restorations. Materials and methods Ten recently extracted human teeth were selected. Cylindrical blocks of resin were prepared and bonded near the Cemento-Enamel Junction (CEJ) of the prepared teeth to mimic the restoration at the root surface. The samples were randomly luted to the root surface using the light cure (Calibra Veneer, Dentsply Sirona, India) and dual cure (Fusion Ultra D/C, DenPro, USA) forming two groups. The bond strength was checked using the INSTRON 3000 device (INSTRON, MA, USA). The point of fracture of the prepared sample from the tooth surface was noted. All readings were tabulated and further statistically analyzed. Results On comparing the two groups, it was found that the light cured resin had a greater mean shear bond strength (57 N) than the dual cure resin cement (41 N). The difference in the mean value of the shear bond strength between two resin cements was found to be statistically not significant according to independent T-test analysis using Levene’s Test (P>0.05). Conclusion From the results obtained and within the limits of the study conducted, we can infer that Calibra Veneer is a more viable option for luting to the root surface area. On the other hand, Fusion Ultra Dual cure resin cement seems to have similar results but has a lower bond strength than the other.

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Section: Discussionmentioning

confidence: 99%

Comparative Evaluation of Bond Strengths Between Dual Cure Resin Cement and Light Cure Resin Cement in Root Surface Indirect Restorations: An In Vitro Analysis Study

Desai,

S M

2024

Cureus

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“…7 For DE, both ER and UA adhesives with an ER or SE approach may produce a slightly better bonding strength, 8 and for cementum, ER and mild SE adhesives may promote higher bonding strength to cementum. 9 Once the steps in the decision tree have been followed, bitewings should be taken periodically to look for signs of leakage or secondary infection not visible clinically. 10 Recalls every three months with bitewings every six months may be appropriate in high caries risk patients and for lesions near the CEJ.…”

Section: Discussionmentioning

confidence: 99%

Decision tree protocol for demineralized gingival margin extension in class II composite cavity preparations

Yamakami

Sehgal

Taylor

et al. 2021

Journal of Dental Sciences

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Summary This study proposed the development of a protocol for class-II preparations with demineralized gingival margins for the improvement of the longevity of restorations. Evidence sources such as location/color/surface hardness/width of demineralized gingival margin with enamel/demineralized enamel (DE)/dentin/cementum were reviewed based on methodological studies and systematic reviews. A decision tree protocol was developed with criteria (i) lesion location: demineralized gingival margins in enamel must be removed, but if close to cementoenamel-junction, color should be evaluated. (ii) Color: yellow/brown lesions must be removed, but if white/opaque, then the surface hardness should be evaluated. (iii) Surface hardness: soft/demineralized gingival margin must be removed, but if adequately hard, width should be evaluated. (iv) Width: lesions less than half-enamel thickness and impenetrable by an explorer, remineralization is possible and the lesion does not need to be removed. A decision tree protocol was set up with the current available literature. Further continued investigations will be needed for the appropriate protocol updates.

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“…The introduction in 1994 of the micro tensile bond strength test (10) allowing measurements of the tensile bond strength on very small surfaces opened the research to regional differences within dentin, and producing many specimens from the same tooth, it was thought that the conventional shear bond strength test would diminish (11). In spite of the increased popularity of the “micro” bond strength tests and the criticism endured by the conventional tensile and shear methods, the number of articles using “macro” tests published in recent years remains high, meaning that a lot of the available data on dental adhesion still comes from mechanical tests performed in specimens with large bonded areas.…”

Section: Introductionmentioning

confidence: 99%

Determining efficacy of monitoring devices on ceramic bond to resin composite

Osorio

Aguilera²,

Osorio³

et al. 2012

Med Oral

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Objectives: This paper aims to assess the effectiveness of 3D nanoroughness and 2D microroughness evaluations, by their correlation with contact angle measurements and shear bond strength test, in order to evaluate the effect of two different acids conditioning on the bonding efficacy of a leucite-based glass-ceramic to a composite resin. Study Design: Ceramic (IPS Empress) blocks were treated as follows: 1) no treatment, 2) 37% phosphoric acid (H3PO4), 15 s, 3) 9% hydrofluoric acid (HF), 5 min. Micro- and nano-roughness were assessed with a profilometer and by means of an atomic force microscopy (AFM). Water contact angle (CA) measurements were determined to assess wettability of the ceramic surfaces with the asixymetric drop shape analysis contact diameter technique. Shear bond strength (SBS) was tested to a resin composite (Z100) with three different adhesive systems (Scotchbond Multipurpose Plus, Clearfil New Bond, ProBOND). Scanning electron microscopy (SEM) images were performed. Results: Nanoroughness values assessed in 50x50 μm areas were higher for the HF group, these differences were not detected by profilometric analysis. HF treatment created the nano- roughest surfaces and the smallest CA (p<0.05), producing the highest SBS to the composite resin with all tested adhesive systems (p<0.05). No differences existed between the SBS produced by the adhesive systems evaluated with any of the surface treatments tested. Conclusions: Nano-roughness obtained in a 50x50 µm scan size areas was the most reliable data to evaluate the topographical changes produced by the different acid treatments on ceramic surfaces. Key words:Dental ceramic, acid etching, bonding efficacy, resin composite, adhesive systems, contact angle, roughness.

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Bond strength and nanoroughness assessment on human pretreated cementum surfaces

Cited by 4 publications

References 25 publications

Comparative Evaluation of Bond Strengths Between Dual Cure Resin Cement and Light Cure Resin Cement in Root Surface Indirect Restorations: An In Vitro Analysis Study

Comparative Evaluation of Bond Strengths Between Dual Cure Resin Cement and Light Cure Resin Cement in Root Surface Indirect Restorations: An In Vitro Analysis Study

Decision tree protocol for demineralized gingival margin extension in class II composite cavity preparations

Determining efficacy of monitoring devices on ceramic bond to resin composite

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