Influence of specimens' design and manufacturing process on microtensile bond strength to enamel: laboratory and FEA comparison

Aim: Natural antioxidants were offered as the answer of dentin adhesion issue. The aim of this study is to investigate the effects of proanthocyanidin and lycopene as pretreatment agents on the sound and caries-affected dentin surface on microtensile bond strength and microleakage. Materials and Methods: This study was designed as in vitro because of that 84 mandibular molar teeth were collected. Forty-two of the included teeth were carious teeth, while the other 42 were without caries. Sixty of them were used for microleakage and 24 for microtensile bond strength testing and scanning electron microscopy analysis. The samples were divided into six subgroups randomly according to dentin pretreatments: 5% proanthocyanidin, 5% lycopene, and no antioxidant application. After the restorative procedures, samples were attached to the microtensile tester. Samples were subjected to tensile stress in the load cell until they broke at a speed of 0.5 mm per min. Microtensile bond strength (µTBS) and microleakage test data were analyzed with two-way analysis of variance, Bonferroni correction, and Tamhane’s T2 tests. Results: Two-way variance analysis showed that dentin pretreatment applications, dentin substrate, and the interaction between these two parameters had statistically significant effects on µTBS values ( P < .001). There was no difference between dentin pretreatment applications in terms of microleakage scores ( P > .05). Conclusion: The application of dentin pretreatment with proanthocyanidin is a successful procedure that increases the bond strength in both dentin substrate, while pretreatment with lycopene in caries-affected dentin reduces it.

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The Influence of Blade Type and Feeding Force during Resin Bonded Dentin Specimen Preparation on the Microtensile Bond Strength Test

Micromachines ◽

10.3390/mi12040450 ◽

2021 ◽

Vol 12 (4) ◽

pp. 450

Author(s):

Apinya Limvisitsakul ◽

Suppason Thitthaweerat ◽

Pisol Senawongse

Keyword(s):

Bond Strength ◽

Surface Integrity ◽

Strength Test ◽

Specimen Preparation ◽

Sectional Area ◽

Microtensile Bond Strength ◽

Cross Sectional ◽

Microtensile Testing ◽

Feeding Force ◽

Scanning Electron

This paper presents the effect of blade type and feeding force during resin-bonded dentin specimen preparation on the microtensile bond strength (μTBS) test. Forty resin-bonded flat middle dentin specimens were divided into four groups. The specimens of each group were sectioned according to type of blade and feeding force as follows: fine grit/20 N, fine grit/40 N, medium grit/20 N, and medium grit/40 N to obtain resin-dentin sticks with a cross-sectional area of 1.0 mm2. Four sticks from the center of each tooth were subjected to the μTBS test. Five remaining sticks of each group were selected for surface topography observation under a scanning electron microscope (SEM). As a result, the bond strength of the medium-grit group was higher than that of the fine-grit group (p < 0.001), whereas the feeding force had no influence on bond strength values (p = 0.648). From the SEM, sticks prepared with the fine-grit blade showed a smoother surface integrity and fewer defects on the specimen edges in comparison with the sticks prepared with the medium-grit blade. The grit type of the blade is one of the considerable factors that may affect the bond strength and the surface integrity of resin-dentin specimens for microtensile testing.

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In vitro effect of Er,Cr:YSGG laser on microtensile bond strength of composite resin to dentin using two different bonding systems

Lasers in Dental Science ◽

10.1007/s41547-021-00125-y ◽

2021 ◽

Author(s):

Farnaz Mahdisiar ◽

Saeed Nemati ◽

Alireza Mirzaei ◽

saeedeh Akhoundan

Keyword(s):

Bond Strength ◽

Composite Resin ◽

Microtensile Bond Strength ◽

Bonding Systems ◽

Vitro Effect

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The effect of self-etching adhesive system associated with different energy densities of Nd:YAG laser on microtensile bond strength to dentin

Lasers in Dental Science ◽

10.1007/s41547-018-0033-4 ◽

2018 ◽

Vol 2 (3) ◽

pp. 157-162 ◽

Cited By ~ 1

Author(s):

Daphne Camara Barcellos ◽

Priscila Holleben ◽

Beatriz Maria Fonseca ◽

Bruna de Cássia Sabino ◽

Sérgio Eduardo de Paiva Gonçalves

Keyword(s):

Bond Strength ◽

Nd:Yag Laser ◽

Adhesive System ◽

Microtensile Bond Strength

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Microtensile bond strength of different adhesive systems in dentin irradiated with Er:YAG laser

Laser Physics Letters ◽

10.1002/lapl.200810031 ◽

2008 ◽

Vol 5 (7) ◽

pp. 547-551 ◽

Cited By ~ 11

Author(s):

L M G Sierpinsky ◽

D M Lima ◽

M S M Candido ◽

V S Bagnato ◽

S T Porto-Neto

Keyword(s):

Bond Strength ◽

Er:Yag Laser ◽

Adhesive Systems ◽

Microtensile Bond Strength

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Influence of chlorhexidine in cavities prepared with ultrasonic or diamond tips on microtensile bond strength

Journal of Adhesion Science and Technology ◽

10.1080/01694243.2016.1246149 ◽

2016 ◽

Vol 31 (10) ◽

pp. 1133-1141

Author(s):

Elen Cristina Pradella Balloni ◽

Flávia Lucisano Botelho do Amaral ◽

Fabiana Mantovani Gomes França ◽

Cecilia Pedroso Turssi ◽

Roberta Tarkany Basting

Keyword(s):

Bond Strength ◽

Microtensile Bond Strength

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The Bus Factor in Conceptual System Design: Protecting a Design Process Against Major Regional and World Events

10.1115/detc2021-70476 ◽

2021 ◽

Author(s):

Douglas L. Van Bossuyt ◽

Ryan M. Arlitt

Keyword(s):

System Design ◽

Design Process ◽

Manufacturing Process ◽

Storage System ◽

Disease Outbreaks ◽

Industrial Sector ◽

Conceptual System ◽

Design And Manufacturing ◽

Renewable Energy Generation ◽

Virtual Events

Abstract We introduce a method to help protect against and mitigate possible consequences of major regional and global events that can disrupt a system design and manufacturing process. The method is intended to be used during the conceptual phase of system design when functional models have been developed and component solutions are being chosen. Disruptive events such as plane crashes killing many engineers from one company traveling together, disease outbreaks killing or temporarily disabling many people associated with one industrial sector who travel to the same conference regularly, geopolitical events that impose tariffs or complete cessation of trade with a country that supplies a critical component, and many other similar physical and virtual events can significantly delay or disrupt a system design process. By comparing alternative embodiment, component, and low-level functional solutions, solutions can be identified that better pass the bus factor where no one disruptive event will cause a major delay or disruption to a system design and manufacturing process. We present a simplified case study of a renewable energy generation and storage system intended for residential use to demonstrate the method. While some challenges to immediate adoption by practitioners exist, we believe the method has the potential to significantly improve system design processes so that systems are designed, manufactured, and delivered on schedule and on budget from the perspective of significant disruptive events to design and manufacturing.

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