Effect of chlorhexidine, green tea and egcg as therapeutic primers to increase the durability of resin-dentin bond

Objective - This study evaluated the effect of 0.2% chlorhexidine gluconate solution (CHX), green tea and active epigallocatechin-gallate (EGCG) used as therapeutic primers on the long-term bond strength of etch-and-rinse adhesive to dentin. Material and Methods - Eighty bovine incisors were worn to expose an area of dentin, that were acid-etched (37% phosphoric acid) and rinsed. The teeth were divided into 4 groups (n = 20): Group C (Control) - Single Bond; Group CHX - 0.2% CHX for 30s + Single Bond; Group EGCG - active EGCG gel at 10 µM for 30 s + Single Bond; Group GT - aqueous green tea for 30s + Single Bond. Blocks of composite were fabricated and stored for 24 h or 6 months, sectioned into beams and submitted to microtensile tests. Results were analyzed by two-way ANOVA and Tukey’s test (5%). Results - Mean (±SD) values (in MPa) were as follow: CHX (24 h) – 41.76 (±2.62); C (24 h) - 40.81 (±3.35); GT (24 h): 37.38(2.98); CHX (6 months) - 36.04 (±3.52); EGCG (24h) - 35.91 (±4.82); EGCG (6 months) - 35.75 (±4.44); GT (6 months) - 31.95 (±3.40); C (6 months): 30.05 (±1.54). Conclusion - EGCG produced resin-dentin bonds that did not change after 6 months water storage but it decreased the immediate bond strength when compared to control and chlorhexidine groups.Keywords: Tensile bond strength; Dentin; Total-etch adhesives; Chlorhexidine gluconate; Green tea.

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Influence of chlorhexidine on longitudinal bond strength to dentin: in vitro study

Brazilian Dental Science ◽

10.14295/bds.2017.v20i1.1315 ◽

2017 ◽

Vol 20 (1) ◽

pp. 17 ◽

Cited By ~ 2

Author(s):

Beatriz Maria Fonseca ◽

Daphne Camara Barcellos ◽

César Rogério Pucci ◽

Eduardo Bresciani ◽

Maria Amélia Máximo de Araújo

Keyword(s):

Phosphoric Acid ◽

Bond Strength ◽

Water Storage ◽

In Vitro Study ◽

Chlorhexidine Gluconate ◽

Acid Etching ◽

Single Bond ◽

Etch And Rinse

Objective: This study evaluated the effect of 0.2% chlorhexidine gluconate solution used as an therapeutic primer on the long-term bond strength of etch-and-rinse adhesive to dentin. Material and Methods: Bovine incisors were worn to expose an area of dentin and were divided into 2 groups: Group C (Control) - acid etching with 37% phosphoric acid + Single Bond; Group CHX (0.2% CHX) - acid etching with 37% phosphoric acid + 0.2% CHX for 30 s + Single Bond. Blocks of composite were fabricated and stored for 24 h or 6 months, sectioned into beams and submitted to microtensile tests. Results were analyzed by two-way ANOVA and Tukey tests. Results: Mean (±SD) values (in MPa) were as follow: Group CHX/24h - 41.8(±2.62)A; Group C/24h - 40.8(±3.35)AB; Group CHX/6 months – 36.4(±3.52)B; Group CHX/6 months - 26.1(±1.54)C. Conclusion: CHX improve the imediatte bond strength of resin-dentin and significantly lowered the loss of bond strength after 6 months water storage as seen in the control bonds.KeywordsTensile bond strength; Dentin; Total-etch adhesives; Chlorhexidine gluconate.

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Effect of Non-Thermal Atmospheric Plasma on Micro-Tensile Bond Strength at Adhesive/Dentin Interface: A Systematic Review

Materials ◽

10.3390/ma14041026 ◽

2021 ◽

Vol 14 (4) ◽

pp. 1026

Author(s):

Mohamed M. Awad ◽

Feras Alhalabi ◽

Abdullah Alshehri ◽

Zaid Aljeaidi ◽

Ali Alrahlah ◽

...

Keyword(s):

Systematic Review ◽

Bond Strength ◽

Atmospheric Plasma ◽

Tensile Bond Strength ◽

Cochrane Library ◽

Limited Information ◽

Short Term ◽

Etch And Rinse ◽

Medium Risk

Objective: The objective of this review was to evaluate the effect of non-thermal atmospheric plasma (NTAP) on adhesives resin–dentin micro-tensile bond strength (μTBS) in previously published studies. Methods: Electronic search was conducted using the Medline, Cochrane library, and Scopus databases. The included studies were laboratory studies that investigated the effect of NTAP on adhesives μTBS to coronal dentin. Studies that evaluated the effect of NTAP on bond strength to indirect substrates, enamel or root dentin, were excluded. The methodological quality of included studies was assessed. Results: Thirteen studies were included in this systematic review. All the included studies were considered to have a medium risk of bias. NTAP significantly improved μTBS at 24 h or after short-term aging in five studies (38.5%) and both immediate and after long-term aging in 5 studies (38.5%). In two studies (15.4%), NTAP resulted in a short-term material-dependent effect that was not stable after long-term aging. Interestingly, in one study (7.7%), NTAP had a positive effect only in the etch-and-rinse (ER) mode after long-term aging. Conclusion: Within the limitations of this systematic review, NTAP application could enhance resin–dentin μTBS of ER adhesives or universal adhesives (UAs) applied in the ER mode. In the ER mode, the rewetting step after NTAP seems to be unnecessary. Because of the limited information currently available in the literature, further studies are required to evaluate the effect of the NTAP application on self-etch (SE) adhesives or UAs applied in the SE mode.

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A Comparative Evaluation of Tensile Bond Strength and Hybrid Layer of Three Generation Bonding Agents by Scanning Electron Microscope (An In-vitro Study)

Journal of Oral Health and Community Dentistry ◽

10.5005/johcd-2-2-36 ◽

2008 ◽

Vol 2 (2) ◽

pp. 36-41

Author(s):

Rajan Dhawan ◽

R Indira ◽

Shivani Dhawan

Keyword(s):

Phosphoric Acid ◽

Bond Strength ◽

Tensile Bond Strength ◽

Distilled Water ◽

Single Bond ◽

Hybrid Layer ◽

Electron Microscopic ◽

Cross Sectional ◽

Bonding Agents ◽

Scanning Electron

ABSTRACT This study was done to compare the tensile bond strength of three different generation bonding agents to dentin using one composite resin and scanning electron microscopic study (SEM) of hybrid layer. In this study 36 non carious human molar teeth were selected. 30 teeth were used for evaluating tensile bond strength and were divided in to three groups. Six teeth were used for hybrid layer evaluation also divided into three groups. Group 1 specimens 10 teeth were etched with 37% phosphoric acid and Scotch bond multipurpose adhesive was applied. Group 2 specimens 10 teeth were etched with 37% phosphoric acid and 3M Single bond was applied. Group 3 specimens 10 teeth were treated with Prompt-L-Pop. Composite material (3M- Hybrid-Z100) was applied incrementally and cured for 40 seconds each. Specimens were then stored in distilled water before testing. Two teeth from each group were cross-sectioned to obtain 1mm thick dentin disks for SEM evaluation. Adhesives were applied as mentioned above. Composite was applied over these discs and light cured for 40 seconds. Samples were stored in distilled water at 37°c for two weeks; these disks were fractured with chisel for cross-sectional viewing Dentin conditioning with single bond (5th Generation) revealed better bond strengths as compared to scotch bond multipurpose (4th generation) and Prompt-L-Pop (6th generation). SEM evaluation of hybrid layer reveals that Single bond has shown a thicker hybrid layer comparing to other adhesives.

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Comparison of Chemical Aging and Water Immersion Time on Durability of Resin-Dentin Interface produced by an Etch-and-Rinse Adhesive

The Journal of Contemporary Dental Practice ◽

10.5005/jp-journals-10024-1170 ◽

2012 ◽

Vol 13 (4) ◽

pp. 464-471 ◽

Cited By ~ 3

Author(s):

Sergio Brossi Botta ◽

Adriana Bona Matos ◽

Bruna Uglik Garbui ◽

Andre Figueiredo Reis

Keyword(s):

Bond Strength ◽

Immersion Time ◽

Water Immersion ◽

Water Storage ◽

Adhesive System ◽

Fracture Pattern ◽

Test Technique ◽

Chemical Aging ◽

Etch And Rinse

ABSTRACT Aim The aim of this study was to analyze and compare the influence of short-term NaOCl-storage and long-term water storage on the microtensile bond strength (μTBS) of etch-andrinse adhesive system to human dentin. Materials and methods Thirty-six third human molars were randomly divided into 6 groups (n = 6) according to the aging protocol: G1 (water, 24 hours); G2 (water, 6 months); G3 (water, 12 months); G4 (10% sodium hypochlorite – NaOCl, 1 hour); G5 (10% NaOCl, 3 hours) and G6 (10% NaOCl, 5 hours). A two-step etch-and-rinse adhesive (Adper Single Bond 2) was applied according to the manufacturers¡¦ instructions. A composite (Filtek Z250) was applied in four horizontal increments and was individually cured. Specimens were cut following the microtensile test technique, submitted to the different aging protocols, and tested in tension. The fracture pattern was observed in a stereomicroscope (40× magnification) and in a scanning electron microscope. The μTBS data were analyzed by ANOVA and Tukey's test (α = 0.05). Results The effect of storage in 10% NaOCl for 1 or 3 hours was not significantly different from that of aging in distilled water (DW) for 6 or 12 months (p > 0.05). Beams immersed in DW for 24 hours and in 10% NaOCl for 5 hours showed the highest and lowest ìTBS values respectively. Conclusion The aging protocols negatively influenced dentin bond strength. Aging specimens in 10% NaOCl for 1 or 3 hours can be an alternative method for long-term water storage (6 or 12 months) bond strength studies. Clinical significance This aging protocol allows a quick achievement of longitudinal bond strength data, so that results are available to the professionals in this area while the materials are yet present at the dental market. How to cite this article Garbui BU, Botta SB, Reis AF, Matos AB. Comparison of Chemical Aging and Water Immersion Time on Durability of Resin-Dentin Interface produced by an Etchand- Rinse Adhesive. J Contemp Dent Pract 2012;13(4):464-471.

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Long‐term microtensile bond strength of self‐etch adhesives and influence of 7 s phosphoric acid etching on adhesion of a 3‐step etch‐and‐rinse adhesive to dentine of primary teeth

International Journal of Paediatric Dentistry ◽

10.1111/ipd.12943 ◽

2021 ◽

Author(s):

Stefanie Amend ◽

Roland Frankenberger ◽

Tobias Oschmann ◽

Susanne Lücker ◽

Julia Winter ◽

...

Keyword(s):

Phosphoric Acid ◽

Bond Strength ◽

Primary Teeth ◽

Acid Etching ◽

Microtensile Bond Strength ◽

Etch And Rinse ◽

Self Etch ◽

Phosphoric Acid Etching

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Effect of epigallocatechin gallate, green tea extract and chlorhexidine application on long-term bond strength of self-etch adhesive to dentin

International Journal of Adhesion and Adhesives ◽

10.1016/j.ijadhadh.2016.08.005 ◽

2016 ◽

Vol 71 ◽

pp. 23-27 ◽

Cited By ~ 3

Author(s):

K.M.F. Gerhardt ◽

C.A.R. Oliveira ◽

F.M.G. França ◽

R.T. Basting ◽

C.P. Turssi ◽

...

Keyword(s):

Bond Strength ◽

Green Tea ◽

Epigallocatechin Gallate ◽

Green Tea Extract ◽

Tea Extract ◽

Self Etch

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The effect of enamel moisture on tensile bond strength of composite resin using Single bond in total etch technique

Iranian Journal of Pediatric Dentistry ◽

10.29252/ijpd.10.1.59 ◽

2014 ◽

Vol 10 (1) ◽

pp. 59-68

Author(s):

H Afshar ◽

M Ghandehari ◽

S Amiri ◽

Z Mirzayi ◽

M Pourali ◽

...

Keyword(s):

Bond Strength ◽

Composite Resin ◽

Tensile Bond Strength ◽

Single Bond

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Interfacial integrity of bonded restorations with self-etching adhesives: Water storage and thermo-mechanical cycling

European Journal of Dentistry ◽

10.1055/s-0039-1698947 ◽

2012 ◽

Vol 06 (02) ◽

pp. 169-177

Author(s):

Gislaine Cristine Martins ◽

Alfonso Sánchez-Ayala ◽

Paulo Henrique Perlatti D’Alpino ◽

Abraham Lincoln Calixto ◽

João Carlos Gomes ◽

...

Keyword(s):

Bond Strength ◽

Water Storage ◽

Single Bond ◽

Third Molars ◽

Class V ◽

Mean Values ◽

Composite Restorations ◽

Mechanical Cycling ◽

Interfacial Gap ◽

Made In

ABSTRACTObjectives: Objective: To evaluate the effect of thermo-mechanical cycling (TMC) on the microleakage (μL) and axial gap width (AG) of Class V bonded restorations in premolars using self-etching adhesive systems. The bond strength of composite restorations to dentin (μTBS) using the same adhesives was also evaluated in third molars after water storage: 24 h and 6 months. The research hypotheses were tested for the results of two self-etching adhesives in comparison when a conventional two-step adhesive was used: (1) the μL and AG would be lower, regardless of TMC; (2) the μTBS of self-etching adhesives would be higher, irrespective of evaluation times.Methods: Sixty Class V composite restorations were made in 30 premolars and bonded with Adper Single Bond 2 (ASB2), AdheSE (ASE), and Adper Prompt L-Pop (APL-P) (n=20). Dentin μL and AG were immediately measured for half of the sample. The other half was evaluated after TMC. Eighteen third molars were also selected and bonded using the same adhesives to test the μTBS to dentin. Specimens were evaluated after 24 h and 6 months of water storage.Results: No differences in μL and AG were found among the groups (P>.05). The μTBS mean values were: ASB2>ASE>APL-P (P<.05); only Adper Single Bond 2 presented a significantly lower μTBS after water storage (P<.05)Conclusions: The bonding approach does not influence the microleakage and interfacial gap extension. Despite the decrease in the mean values, the bond strength to dentin of the conventional, two-step adhesive remains high after 6 months of water storage. (Eur J Dent 2012;6:169-177)

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Effect of Proteolytic Agents on Microleakage of Etch and Rinse Adhesive Systems

Brazilian Journal of Oral Sciences ◽

10.20396/bjos.v16i0.8651051 ◽

2017 ◽

Vol 16 ◽

pp. 1-11

Author(s):

Shahin Kasraei ◽

Ebrahim Yarmohammadi ◽

Maryam Farhadian ◽

Mona Malek

Keyword(s):

Phosphoric Acid ◽

Nd:Yag Laser ◽

Control Group ◽

Single Bond ◽

Adhesive Systems ◽

Class V ◽

Dentin Surface ◽

Composite Restorations ◽

Etch And Rinse ◽

Significant Difference

Objective: this study aimed to assess the effect of treatment of phosphoric acid etched dentin surface with 5% bromelain enzyme and Nd:YAG laser prior to the use of etch and rinse adhesive systems on microleakage margins of class V composite restorations. Materials and Methods: sixty sound premolar teeth were selected. Standard class V cavities were prepared in the buccal and lingual surfaces of each teeth. Preparation in that way 1 mm of the cavity was above and 1 mm of it was below the cementoenamel junction. The teeth were then randomly divided into three groups including 20 teeth(40cavities in each gorup). Two ethanol base etch and rinse system (Adper Single Bond and OptiBond Solo) was applied in each group. In the control group, cavities were etched with 37% phosphoric acid. Adper Single Bond was applied to 20 and OptiBond Solo was applied to the remaining 20 cavities and they were restored with Z250 composite (n=40). The same procedures were performed in bromelain and Nd:YAG laser groups with the difference that prior to the application of adhesive, aqueous 5% bromelain was applied in bromelain group while Nd:YAG laser was irradiated in laser group. All teeth were thermocycled and their apices were sealed with sticky wax. The tooth surfaces were coated with nail varnish except for 1 mm around the restoration margins, and the teeth were then immersed in fuchsine and sectioned by a diamond disc into mesial and distal halves. Marginal microleakage at both sides was determined and scored under a stereomicroscope at x40 magnification. Then data were analyzed using the Kruskal Wallis and Mann Whitney tests (α=0.05). Results: according the result of Mann Whitney test, Cervical margins showed significantly higher microleakage than the occlusal margins (P=0.000) but no significant difference was noted in microleakage of occlusal (P=0.362) or gingival (P=0.147) margins among the three groups by Kruskal Wallis test. Conclusion: in conclusion, application of proteolytic agents(5% bromelain solution and Nd:YAG laser) on acid-etched dentin surface prior to the application of adhesive has no significant effect on marginal microleakage of class V composite restorations.

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