Evaluation of the Bond Strength of AH Plus Sealer after Irrigation of the Root Canals Using Nano-Silver and Sodium Hypochlorite

Nashaat, Yousra M.; Sabry, Hadil; Omar, Nada; Negm, Ahmed; Ghoneim, Walaa M

doi:10.21608/edj.2019.72577

“…Our findings are in agreement with Nashaat et al, 2019 [34] and Gabal et al, 2018 [50] . Marginal adaption and bond strength were considerably reduced by increasing the proportion of Nano-silver particles in endodontic sealers, according to their findings [50] .…”

Section: Discussionsupporting

confidence: 94%

Untitled

2023

Int. J. Appl. Dent. Sci.

0

View full text Add to dashboard Cite

The objective of this study was to determine and compare the Push-out bond strength of AH Plus sealer of root canal following prior application of calcium hydroxide (Ca[OH]2) paste and Nano-silver gel as intracanal medication in single-rooted human extracted maxillary incisors. Methodology: Using of ProTaper System up till master apical file # F5 have been carried out to prepare root canals of 30 human extracted maxillary incisors. According to the intracanal medication applied, division of teeth were carried out in random manner into three groups. Group I: Control group (No intracanal medication), Group II: Nano-silver gel and Group III: Calcium hydroxide Ca(OH)2. Three weeks later, the elimination process of the intracanal medications were achieved by using passive ultrasonic irrigation of 5 mL 2.5% NaClO, in addition to that, a 17% EDTA was used in the step of final flush for duration of 60 seconds succeeded by 5 mL of distilled water. Using the master cone #F5 and AH plus sealer, the single cone approach was used to fill the canals. After 1 week, the universal testing machine was implemented to test the push out-bond strength of the samples, which was performed for a 2-mm-thick of coronal, middle and apical thirds of each root. Results: A remarkable difference was evident between the control group and the comparison groups (p<0.001). Within the control group, the greatest value was evident (4.85±1.65), followed by calcium hydroxide (2.11±1.17), meanwhile the lowest value was discovered in nano-silver (1.41±1.08). Post hoc pairwise comparisons demonstrated a remarkably higher value in the control group than the rest of groups (p<0.001) with no statistically remarkable difference between calcium hydroxide and Nano-silver group. Conclusion:Prior calcium hydroxide and nano-silver placement seemed to decrease the push-out bond strength of epoxy resin-based Ah plus sealer.

show abstract

“…Ah Plus endodontic sealer was chosen as it remains the gold standard [33] . The relatively satisfactory adhesion of AH Plus sealer is thought to be due to the ability of an open oxide ring to form a covalent bond with the exposed amino groups present in the collagen network of dentin [34] . This in-vitro study aimed to evaluate how the bond strength of AH Plus epoxy resin-based sealer to root canal dentin is affected by root canal medication using either calcium hydroxide paste or Nano-silver gel.…”

Section: Discussionmentioning

confidence: 99%

Effect of nano-silver gel and calcium hydroxide paste on the bond strength of epoxy-resin based sealer to root canal dentin in anterior teeth: An in vitro study

Ahmed¹,

Sadek²,

Morsy³

2023

Int. J. Appl. Dent. Sci.

0

View full text Add to dashboard Cite

The objective of this study was to determine and compare the Push-out bond strength of AH Plus sealer of root canal following prior application of calcium hydroxide (Ca[OH]2) paste and Nano-silver gel as intracanal medication in single-rooted human extracted maxillary incisors. Methodology: Using of ProTaper System up till master apical file # F5 have been carried out to prepare root canals of 30 human extracted maxillary incisors. According to the intracanal medication applied, division of teeth were carried out in random manner into three groups. Group I: Control group (No intracanal medication), Group II: Nano-silver gel and Group III: Calcium hydroxide Ca(OH)2. Three weeks later, the elimination process of the intracanal medications were achieved by using passive ultrasonic irrigation of 5 mL 2.5% NaClO, in addition to that, a 17% EDTA was used in the step of final flush for duration of 60 seconds succeeded by 5 mL of distilled water. Using the master cone #F5 and AH plus sealer, the single cone approach was used to fill the canals. After 1 week, the universal testing machine was implemented to test the push out-bond strength of the samples, which was performed for a 2-mm-thick of coronal, middle and apical thirds of each root. Results: A remarkable difference was evident between the control group and the comparison groups (p<0.001). Within the control group, the greatest value was evident (4.85±1.65), followed by calcium hydroxide (2.11±1.17), meanwhile the lowest value was discovered in nano-silver (1.41±1.08). Post hoc pairwise comparisons demonstrated a remarkably higher value in the control group than the rest of groups (p<0.001) with no statistically remarkable difference between calcium hydroxide and Nano-silver group. Conclusion:Prior calcium hydroxide and nano-silver placement seemed to decrease the push-out bond strength of epoxy resin-based Ah plus sealer.

show abstract

“…NaOCl has the ability to dissolve and remove the exposed dentinal collagen and provide a fresh mineralized dentin surface to which the adhesive resin can be applied. This allows a direct adhesion between the adhesive resin and dentin without the resin-reinforced collagen layer called the ‘hybrid layer’ [ 61 ]. The adhesive resin will therefore infiltrate the mineralized matrix filling the submicron porosities.…”

Section: Discussionmentioning

confidence: 99%

“…The adhesive resin will therefore infiltrate the mineralized matrix filling the submicron porosities. This creates a layer of resin-infiltrated mineralized matrix [ 61 ].…”

Section: Discussionmentioning

confidence: 99%

Comparison of the push-out bond strength of AH Plus sealer to dentin after using different herbal irrigation solutions as the final rinse

Nabavizadeh

¹

,

Sobhnamayan

²

,

Sedigh-Shams

³

et al. 2022

PLoS ONE

4

0

View full text Add to dashboard Cite

The aim of the present study was to evaluate the push-out bond strength of AH Plus sealer to dentin treated with the essential oils of Cumimum cyminum and Cinnamomum zeylanicum as herbal final irrigants. Forty human mandibular first premolars were selected. After smear layer removal, the samples were divided into 4 groups and irrigated with experimental solutions for 1 min and later with distilled water. G1: Cinnamomum zeylanicum (CZ) in minimum inhibitory concentration (MIC); G2: Sodium hypochlorite 2.5%; G3: Sodium hypochlorite in MIC; G4: Cuminum cyminum (CC) in MIC. After obturation, the roots were sectioned in order to obtain 1-mm discs for push-out assessment. The push-out test was performed using a universal testing machine. The slices were examined using a stereomicroscope at 30× to determine the mode of failure. The data were analyzed using one-way analysis of variance and Tukey’s post-hoc test. The teeth irrigated with CZ showed significantly lower push-out resistance than those irrigated with NaOCl 2.5% and NaOCl at MIC. The other groups had no significant difference. The modes of failure were predominantly mixed. Under the limitations of the present study, CC does not have adverse effects on the bond strength of AH Plus and can be used as a good alternative for currently used final irrigants.

show abstract

Evaluation of the Bond Strength of AH Plus Sealer after Irrigation of the Root Canals Using Nano-Silver and Sodium Hypochlorite

Cited by 4 publications

References 33 publications

Untitled

Untitled

Effect of nano-silver gel and calcium hydroxide paste on the bond strength of epoxy-resin based sealer to root canal dentin in anterior teeth: An in vitro study

Comparison of the push-out bond strength of AH Plus sealer to dentin after using different herbal irrigation solutions as the final rinse

Contact Info

Product

Resources

About