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Impact Of Different Acid Etching Time On Microtensile Bond Strength To Vital Dentin
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Book Synopsis Impact of Different Acid Etching Time on Microtensile Bond Strength to Vital Dentin by : Aadarsh Gopalakrishna
Download or read book Impact of Different Acid Etching Time on Microtensile Bond Strength to Vital Dentin written by Aadarsh Gopalakrishna and published by . This book was released on 2009 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Objectives: This study evaluated the effects of extended acid etching on microtensile bond strength ([micro]TBS) of a etch and rinse adhesive system to sound vital dentin. Etching times of 5, 20 and 80 seconds was used to evaluate the [micro]TBS on vital dentin with resin bonded composite [RBC] restoration (Esthet-X TM) which used a two step etch and rinse adhesive system(Prime Bond NT TM) for bonding. Methods: 26 premolars which were going to be extracted for orthodontic treatment were used for this experiment. The teeth were randomly divided into 3 groups based on the etch times and restored with RBC using two step adhesive and extracted in Guarulhos University (Brazil). After extraction, these teeth were sectioned (Microtome) in such a way to obtain 2 testing beams of 2mm diameter from each tooth were obtained which were trimmed (CNC specimen former, University of Iowa, IA, USA) to a dumb bell shape and tested for the microtensile bond strength in University of Iowa. Out of 26 teeth, 46 beams were obtained. For statistical analysis, One-way ANOVA with post-hoc Tukey-Kramer's test was used to determine whether there were significant differences in micro-tensile bond strength among three etching times under each condition. All tests had a 0.05 level of statistical significance. SAS for Windows (v9.1, SAS Institute Inc, Cary, NC, USA) was used for the data analysis. Fracture mode was analyzed using scanning electron microscopy. Results: Bond strengths in 20 seconds and 5 seconds groups were significantly greater than that observed in 80 seconds group, while there was no significant difference between 20 and 5 etching times. SEM showed majority of the failure was adhesive/ joint failure. Significance: The results in this In-vivo study are consistent with other in-vitro studies and thus bring an insight on the importance of duration of phosphoric acid application on dentin and extended etch times could compromise the bond strength of the restorations.
Book Synopsis Etching Time Effects on the Bond Strength of Three Adhesive Systems by : Hung D. Pham
Download or read book Etching Time Effects on the Bond Strength of Three Adhesive Systems written by Hung D. Pham and published by . This book was released on 2002 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Smear Layer on Microtensile Bond Strength of Self-etching Adhesives to Dentin by : Varangkanar Jirarattanasopa
Download or read book Effect of Smear Layer on Microtensile Bond Strength of Self-etching Adhesives to Dentin written by Varangkanar Jirarattanasopa and published by . This book was released on 2003 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Chlorhexidine-encapsulated Nanotube-modified Adhesive System on the Bond Strength to Human Dentin by : Sara Arfan Kalagi
Download or read book Effect of Chlorhexidine-encapsulated Nanotube-modified Adhesive System on the Bond Strength to Human Dentin written by Sara Arfan Kalagi and published by . This book was released on 2019 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction: The resin-dentin interface undergoes degradation by endogenous matrix metalloproteinases (MMPs) after adhesive procedures. Application of several MMP inhibitors such as chlorhexidine (CHX) to the demineralized collagen dentin matrix after acid-etching has been suggested to be a successful approach to prevent degradation of the hybrid layer. Further, nanotubes (HNT) have been used as a reservoir for encapsulation and controlled delivery for several therapeutic drugs with sustained release. Therefore, HNT can be encapsulated with CHX and incorporated into dentin adhesives for the possibility of enhancing the longevity and durability of the hybrid layer. Objective: To evaluate the effect of a CHX-encapsulated nanotube-modified primer/PR and adhesive/ADH on the microtensile resin bond strength (æTBS) to dentin. Materials and Methods: A commercial adhesive and its respective primer were modified by adding CHX-encapsulated nanotubes at two distinct concentrations (10 and 20 wt.%). The experimental adhesives were evaluated by degree of conversion (DC) and viscosity. Meanwhile, only viscosity was determined for the experimental primers. The prepared HNT-encapsulated with CHX (10 and 20 wt.%) powders were incorporated into the primer and/or adhesive according to the groups: ADH (control); HNT (control); 0.2% CHX; PR+CHX10%; PR+CHX20%; ADH+CHX10%; ADH+CHX20%. Human molars were selected and autoclaved; mid-coronal dentin surfaces were exposed for bonding purposes. Dentin surfaces were etched, followed by primer and adhesive application, and restored with a resin composite. After 24 hours, the teeth were sliced into beams for æTBS testing; beams collected for each tooth were equally assigned into two testing condition groups: 24 hours and 6 months. Microtensile bond strength was tested using a universal testing machine, and the types of failure were classified as adhesive, mixed, and cohesive failure. Data from DC and viscosity tests were analyzed using one-way ANOVA. Bond strength data were analyzed by pair-wise comparisons using the Sidak method to control the overall significance level at 5% for each aging time separately. Weibull-distribution survival analysis was used to compare the differences in the microtensile bond strength results among the groups after 24 hours and 6 months. Results and Conclusion: DC analysis revealed no significant differences among adhesive groups. However, ADH group had a significantly lower viscosity than modified adhesive groups, and a significantly higher viscosity than modified primer groups. Test results of stress value (MPa) by each group for each aging time revealed no significant differences among groups after 24 hours. However, after 6-month storage, modified primer groups (PR+CHX10%, PR+CHX20%) and 0.2%CHX group showed a significant difference in æTBS compared to control groups (ADH, HNT) and modified adhesive groups (ADH+CHX10%, ADH+CHX20%) in the same aging time testing (p
Book Synopsis Sturdevant's Art & Science of Operative Dentistry - E-Book by : Harald O. Heymann
Download or read book Sturdevant's Art & Science of Operative Dentistry - E-Book written by Harald O. Heymann and published by Elsevier Health Sciences. This book was released on 2014-03-12 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get a better picture of operative dentistry from the most complete text on the market. Using a detailed, heavily illustrated, step-by-step approach, this comprehensive guide helps you master the fundamentals and procedures of restorative and preventive dentistry and learn to make informed decisions to solve patient needs. This widely respected text draws from both theory and practice, and is supported by extensive clinical and laboratory research. The new edition features a new full-color design, significant content updates, and a new companion website with six supplemental chapters, videos, and more. Comprehensive coverage spans the entire spectrum of operative dentistry, including fundamentals, diagnosis, instrumentation, preparation, restoration, and prevention. Practical, scientific approach to content is supported by sound clinical and laboratory research and incorporates both theory and practice. Clear presentation of techniques and procedures uses a consistent pattern to cover each restorative process. Procedural alternatives instruct on how to adapt a procedure or technique to answer individual patient needs. Pros and cons of restoration options discuss the advantages, disadvantages, indications, and contraindications involved to help you make informed decisions when multiple treatment options are available. Significant revisions across all chapters streamline the book and make it easier to read. New full-color design gives you a better picture of concepts and procedure details. Companion website offers electronic access to the book, plus six supplemental chapters, videos, and weblinks.
Download or read book Adhesives written by Anna Rudawska and published by BoD – Books on Demand. This book was released on 2016-11-23 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents some information regarding adhesives which have applications in industry, medicine and dentistry. The book is divided into two parts: "Adhesives Applications in Medicine and Dentistry" and "Properties of Adhesive." The aim of such a presentation is to present the usage in very different aspects of application of the adhesives and present specific properties of adhesives. Adhesives' advantageous properties and relatively uncomplicated processing methods contribute to their increasing application and their growing popularity in the industry, medicine and other branches. Some adhesives represent properties superior to those of most adhesive materials, due to their excellent adhesion and chemical resistance. A wide variety of adhesives' considerable flexibility in modification of properties of adhesives allows adjusting the composition to particular applications.
Book Synopsis Microtensile Bond Strength Evaluation of an Etch and Rinse Bonding System to Cervical Sclerotic Dentin as a Function of Surface Treatment by : Jennifer Barnes McCants
Download or read book Microtensile Bond Strength Evaluation of an Etch and Rinse Bonding System to Cervical Sclerotic Dentin as a Function of Surface Treatment written by Jennifer Barnes McCants and published by . This book was released on 2004 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Textbook of Operative Dentistry by : Nisha Garg
Download or read book Textbook of Operative Dentistry written by Nisha Garg and published by Boydell & Brewer Ltd. This book was released on 2010-08 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition is a complete guide to operative dentistry. Beginning with an introduction, physiology, dental caries and tooth preparation, the text also discusses pain and infection control. The following sections examine different operative procedures. New techniques such as minimal intervention dentistry, nanotechnology and lasers; and advances in dental materials are discussed in detail. More than 1200 colour images, illustrations, flow charts and tables are included. Key points Complete guide to operative dentistry Discusses numerous different procedures, and pain and infection control New techniques and advances in materials described in detail More than 1200 colour images, illustrations, flow charts and tables Previous edition published in 2010
Book Synopsis Influence of Different Pretreatments on the Microtensile Bond Strength to Eroded Dentin by : Shengjile Deari
Download or read book Influence of Different Pretreatments on the Microtensile Bond Strength to Eroded Dentin written by Shengjile Deari and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microtensile Bond Strength of Self-etching Adhesives to Caries-affected Dentin in Primary Teeth by : Suwit thaithamayanon
Download or read book Microtensile Bond Strength of Self-etching Adhesives to Caries-affected Dentin in Primary Teeth written by Suwit thaithamayanon and published by . This book was released on 2005 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Microtensile Bond Strength of Self-etching Adhesives with Two Different Application Procedures by : Deniz Cakir
Download or read book Evaluation of Microtensile Bond Strength of Self-etching Adhesives with Two Different Application Procedures written by Deniz Cakir and published by . This book was released on 2005 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Enamel Preparation on the Microtensile Bond Strength of Self-etching Primers by : Betzi Arvelo
Download or read book Effect of Enamel Preparation on the Microtensile Bond Strength of Self-etching Primers written by Betzi Arvelo and published by . This book was released on 2003 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Dentin Pre-treatment on the Microtensile Bond Strength of Resin Cements to Dentin by : Allison C. Broyles
Download or read book The Effect of Dentin Pre-treatment on the Microtensile Bond Strength of Resin Cements to Dentin written by Allison C. Broyles and published by . This book was released on 2009 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Bur Type on Microtensile Bond Strengths of Self-etching Systems to Dentin and Enamel by : Walter R. L. Dias
Download or read book Effect of Bur Type on Microtensile Bond Strengths of Self-etching Systems to Dentin and Enamel written by Walter R. L. Dias and published by . This book was released on 2003 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dental Hard Tissues and Bonding by : George Eliades
Download or read book Dental Hard Tissues and Bonding written by George Eliades and published by Springer Science & Business Media. This book was released on 2005-12-06 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprehensively reviews bonding to enamel, dentin and cementum and analyses relevant adhesion mechanisms. It is addressed to both the dental researcher and the clinician. Emphasis is placed on the characterization of material interfaces with dental tissues in situ. The volume also stresses the importance of appropriate experimental protocol design in facilitating clinically-relevant research methods, clarifies the mechanisms of adhesion of polymeric materials to hard dental tissues and furnishes a handy reference for routine clinical procedures in restorative and prosthetic dentistry as well as orthodontics. The book introduces important aspects of the chemistry of dental materials and their adaptation to dental hard tissues. It also analyses interfacial phenomena occurring during application of materials, including mechanical properties, and structural-compositional alterations. The text presents the current instrumental approaches in studying related issues and a summary of the current status of theories concerning bonding to dental tissues. This work, in its scope and scientific content, provides an in-depth view of the way in which aesthetic dentistry is currently being practiced.
Book Synopsis The Effect of Different Cementing Strategies and Adhesive Interface Aging on Microtensile Bond Strength (μTBS) of Lithium Disilicate Ceramics to Dentin by :
Download or read book The Effect of Different Cementing Strategies and Adhesive Interface Aging on Microtensile Bond Strength (μTBS) of Lithium Disilicate Ceramics to Dentin written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microtensile Bond Strength of New Paste/paste Resin-modified Glass Ionomer Cement System by : Yasser Fawaz Al-Fawaz
Download or read book Microtensile Bond Strength of New Paste/paste Resin-modified Glass Ionomer Cement System written by Yasser Fawaz Al-Fawaz and published by . This book was released on 2011 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Background: In order to improve the clinical performance of RMGIC 3M ESPE and GC America introduced paste/paste resin-modified glass ionomer cements, Ketac [trademark symbol] Nano and Fuji Filling [trademark symbol] LC, respectively. Both companies developed non-rinse substrate conditioners (i.e., Ketac Nano Primer-3M ESPE and GC Self-Conditioner-GC America) that should be used with these new materials instead of the conventional polyacrylic acid. It has been also advised by both manufacturers to use this novel substrate conditioner with the previously marketed RMGICs. Objective: to investigate whether the use of novel non-rinse conditioners (i.e., Ketac Nano Primer 3M ESPE and GC Self Conditioner GC America) as substrate pre-treatment and the new paste/paste resin-modified glass-ionomer cement, RMGIC (Ketac [trademark symbol] Nano 3M ESPE and Fuji Filling [trademark symbol] LC GC America) would affect the microtensile dentin bond strength (æTBS) of the material when compared to the traditional RMGIC with polyacrylic acid as a surface substrate pre-treatment. Materials and Methods: 96 extracted non-restored human molar were sectioned to expose occlusal dentin. Dentin surface was finished with SiC paper to standardize the smear layer. Bonding protocols of the different materials to dentin were performed following the use of two dentin conditioners. Eight groups (n=12) were tested: G1: Ketac Nano Primer + Ketac Nano, G2: Ketac Conditioner + Ketac Nano, G3: Ketac Nano Primer + Photac Fil, G4: Ketac Conditioner + Photac Fil, G5: GC Self Conditioner + Fuji Filling LC, G6: GC Cavity Conditioner + Fuji Filling LC, G7: GC Self Conditioner + Fuji II LC and G8: GC Cavity Conditioner + Fuji II LC. The specimens were stored in 37°C for 24h in 100% humidity before cutting non-trimmed beams for the æTBS with cross-sectional areas of approximately 0.8 × 0.8 mm2. Nine beams were used from each specimen. Test was done using universal testing machine at a cross-head speed of 1mm/min. Debonded specimens were examined under a stereomicroscope at 45× magnification to evaluate the failure mode. Eight randomly chosen representative debonded beams were imaged under a scanning electron microscope (SEM). Results: æTBS in MPa (mean " SE) were: G1: 9.5"1.0, G2: 11.0"1.0, G3:20.0"1.0, G4:16.8"0.9, G5: 15.1"1.0, G6: pre-test failure, G7: 20.0"1.0, G8:14.1"0.9. Weibull-distribution survival analysis was used to compare the differences in microtensile peak stress among the groups. Group5 has cohesive predominant faultier mod while the other groups have adhesive predominant failure. Conclusion: Within the limitations of this study, the use of the novel non-rinse conditioners did not improve the microtensile bond strength of new paste/paste RMGIC to dentin. In fact, the use of the novel non-rinse conditioners enhanced the bond strength of the traditional RMGIC to dentin.
