scholarly journals Influence of Previous Provisional Cementation on the Bond Strength Between Two Definitive Resin-based Luting and Dentin Bonding Agents and Human Dentin

10.2341/06-27 ◽  
2007 ◽  
Vol 32 (1) ◽  
pp. 84-93 ◽  
Author(s):  
S. Erkut ◽  
H. C. Küçükesmen ◽  
N. Eminkahyagil ◽  
P. Imirzalioglu ◽  
E. Karabulut
Keyword(s):  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
Bonding Agents ◽  
Dentin Bonding ◽  
Dentin Bonding Agents ◽  
Luting Agent ◽  
Human Dentin ◽  
Bonding Method

Clinical Relevance Based on in vitro results in extracted teeth, the dual bonding method used was effective in restoring the shear bond strength values that decreased after applying provisional luting agent regardless of the composition of the provisional luting agent (eugenol-based or eugenol-free) used.

scholarly journals A Comparative Evaluation of the Shear Bond Strength of Three Different Fifth Generation Dentin Bonding Agents: An in vitro Study

2014 ◽  
Vol 4 (1) ◽  
pp. 1-5
Author(s):  
Lata B Gangurde ◽  
Mansing G Pawar ◽  
Sumanthini V Margasahayam
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
Single Bond ◽  
Bond Failure ◽  
Bonding Agents ◽  
Dentin Bonding ◽  
Dentin Bonding Agents ◽  
Fifth Generation ◽  
Group B

ABSTRACT Purpose To compare and evaluate the shear bond strength of three different fifth generation dentin bonding agents used with composite resin and to determine the mode of bond failure in each case. Materials and Methods Forty-five freshly extracted human permanent molars were used and the specimens were divided into three test groups (N = 15) namely group A = Excite, group B = single bond, group C = Prime and Bond NT. The occlusal surfaces of the specimens were ground to expose the superficial dentin and mounted in self cure acrylic resin. The surface was etched with 37% phosphoric acid gel and bonding agents were applied to etched surface. A composite button of 5.3 × 3 mm (Z 100) was bonded to the test specimens and subjected to shear load using United Universal Testing Machine at the cross-head speed of 0.5 mm/min. The nature of bond failure was determined using a stereomicroscope at ×8 magnification. Results Mean shear bond strength values in MPa of groups A, B, C were 21.483, 16.881 and 14.116 respectively. Group A showed 73.3% cohesive and 26.6% adhesive, Group B showed 66.6% adhesive, 20% cohesive and 13.33% mixed, group C showed 73.3% adhesive 6.6% cohesive and 20% mixed bond failures. Conclusion Excite dentin bonding agent exhibited highest shear bond strength values as compared to Single Bond and Prime and Bond NT, this difference was statistically significant. There was no statistically significant difference between the shear bond strength values of Single Bond and Prime and Bond NT. Maximum number of cohesive bond failure were observed in dentin with Excite. Single Bond and Prime and Bond NT exhibited maximum number of adhesive bond failure. How to cite this article Gangurde LB, Pawar MG, Shenoy VU, Margasahayam SV. A Comparative Evaluation of the Shear Bond Strength of Three Different Fifth Generation Dentin Bonding Agents: An in vitro Study. J Contemp Dent 2014;4(1):1-5.

scholarly journals Effect of Salivary Contamination on the Bond Strength of Total-etch and Self-etch Adhesive Systems: An in vitro Study

2012 ◽  
Vol 13 (5) ◽  
pp. 655-660 ◽  
Author(s):  
LM Ranganath ◽  
AG Rajesh ◽  
Robert M Justin ◽  
Hemalatha Paranthaman ◽  
Ranjith P Varghese
Keyword(s):  
Bond Strength ◽  
Shear Bond Strength ◽  
In Vitro Study ◽  
Single Bond ◽  
Adhesive Systems ◽  
Bonding Agents ◽  
Dentin Bonding ◽  
Etched Surface ◽  
Self Etch

ABSTRACT Aim To evaluate the influence of salivary contamination during dentin bonding procedures on shear bond strength and to investigate the effect of contaminant-removing treatments on the recovery of bond strength for two dentin-bonding agents. Materials and methods Seventy-seven human maxillary and mandibular molars were randomly divided into two groups for total-etch adhesive (Single bond-3M ESPE, USA) and self-etch primer (UniFil Bond-GC, Tokyo, Japan) and subjected to contamination with saliva. The data for each group were subjected to one-way analysis of variance (ANOVA) followed by the Student Newman-Keuls test to make comparisons among the groups (p < 0.05). Results Salivary contamination had less adverse effect on the shear bond strength of single bond total-etch adhesive when it was blot dried or washed. UniFil bond was tolerant of salivary contamination, except when contamination occurred after application of the primer. Conclusion In single bond adhesive, when the etched surface is contaminated by saliva, blotting the surface and applying the primer can recover the bond strength. Complete drying of the salivary contaminated surface should be avoided. In the UniFil bond groups, the repriming treatment (UF-V and UF-VI) resulted in the recovery of shear bond strength in the specimens contaminated after priming. Clinical significance The results of this study showed that total- etch adhesive (single bond) was not affected by salivary contamination on the etched surface when the bonding surface was kept moist. Self-etch adhesive (UniFil bond) also tolerated salivary contamination except when the contamination occurred after application of the primer. How to cite this article Justin RM, Paranthaman H, Rajesh AG, Varghese RP, Ranganath LM. Effect of Salivary Contamination on the Bond Strength of Total-etch and Selfetch Adhesive Systems: An in vitro Study. J Contemp Dent Pract 2012;13(5):655-660.

Shear Bond Strength of Two Resin Cements to Human Root Dentin Using Three Dentin Bonding Agents

10.2341/06-3 ◽  
2007 ◽  
Vol 32 (1) ◽  
pp. 31-36 ◽  
Author(s):  
C. Gogos ◽  
C. Stavrianos ◽  
I. Kolokouris ◽  
N. Economides ◽  
I. Papadoyannis
Keyword(s):  
Phosphoric Acid ◽  
Bond Strength ◽  
Clinical Relevance ◽  
Shear Bond Strength ◽  
The Self ◽  
Resin Cements ◽  
Bonding Agents ◽  
Dentin Bonding ◽  
Edta Solution ◽  
Root Dentin

Clinical Relevance The application of 15% EDTA solution was shown to be an alternative to the commonly used 37% phosphoric acid in the bonding procedures of resin cements. The self-etching adhesive tested was found to improve bond strength more than one-bottle adhesives.

scholarly journals Adhesion to Primary and Permanent Dentin and a Simple Model Approach

2009 ◽  
Vol 03 (01) ◽  
pp. 32-41 ◽  
Author(s):  
Deniz C. Can-Karabulut ◽  
Firdevs Tulga Oz ◽  
Baris Karabulut ◽  
Inci Batmaz ◽  
Ozlem Ilk
Keyword(s):  
Bond Strength ◽  
Statistical Model ◽  
Shear Bond Strength ◽  
Failure Modes ◽  
Negative Relationship ◽  
Adhesive System ◽  
Bonding Agents ◽  
Dentin Bonding ◽  
Dentin Bonding Agents ◽  
Self Etch

ABSTRACTObjectives: First to compare different dentin bonding agents’ shear bond strength to primary and permanent dentin. Secondly to compare the fracture failure modes and making an attempt to develop a statistical model that could be helpful in predicting them.Methods: Extracted human primary and permanent molars were used as substrates (dentin). The shear bond strength of composite to substrate was measured and fracture surfaces were evaluated visually and with stereomicroscope. Using the data obtained, a statistical model was built in order to predict the failure modes.Results: Higher bond strength values were obtained for permanent dentin. Total-etch adhesives displayed higher shear bond strength values than the self-etch adhesive. Adhesive failures were more frequently seen in primary dentin. Self-etch adhesive system displayed more adhesive failures. Prepared model confirmed the negative relationship between shear bond strength and the probability of observing adhesive failure.Conclusions: There should be an application protocol for the usage of dentin bonding agents in primary dentin. Further development of statistical and fuzzy models for failure modes can be supportive alternatives for microscopic evaluations and also be helpful in understanding and eliminating the factors which are responsible for the formation of adhesive failures and for achieving clinically more successful adhesive restorations. (Eur J Dent 2009;3:32-41)

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