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The Effect Of Internal Bleaching Agent On Chemical Composition And Mechanical Property Of Human Dentin
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Book Synopsis The Effect of Internal Bleaching Agent on Chemical Composition and Mechanical Property of Human Dentin by : Supavadee Treesolrat
Download or read book The Effect of Internal Bleaching Agent on Chemical Composition and Mechanical Property of Human Dentin written by Supavadee Treesolrat and published by . This book was released on 2003 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Tooth Bleaching Agents on Mechanical Properties and Protein Contents of Dental Enamel by : Hunida Muftah Elfallah
Download or read book The Effect of Tooth Bleaching Agents on Mechanical Properties and Protein Contents of Dental Enamel written by Hunida Muftah Elfallah and published by . This book was released on 2013 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermal Effects on the Physico-chemical Properties of Human Dentin by : Danni Fan
Download or read book Thermal Effects on the Physico-chemical Properties of Human Dentin written by Danni Fan and published by . This book was released on 1993 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure-property Relationships for Human Dentin by : Weishi Yan
Download or read book Structure-property Relationships for Human Dentin written by Weishi Yan and published by . This book was released on 2020 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increase in number of senior patients has become a major challenge in the field of dentistry. Senior patients are more likely to experience tooth fracture, which often necessitates tooth extraction. Understanding the aging process and its effects on the structure-property relationships of tooth tissue is critical to the development of patient-centric oral healthcare. Previous efforts have focused on the impact of age-related mineralization, known as sclerosis, within the tooth crown. In comparison, few studies have considered age-related degradation of the organic content and its contribution to the structural behavior of dentin. This concern is of greater importance in the radicular dentin, which possesses a higher organic content. Furthermore, the tooth roots are subjected to more invasive treatments as a result of root infection, which could contribute to a unique form of age-related degradation. Therefore, the primary goal of this study is to understand the materials science of aging in the radicular dentin, including the differences in degradation that occur in vital and non-vital teeth. Chapter 1 presents a brief introduction to oral histology that supports the detailed discussions in the following chapters. Chapter 2 to Chapter 6 describe complementary studies performed to answer the overarching research questions: what are the mechanisms of structural degradation in tooth roots with aging and how is this process affected by the loss of the vital pulp? Chapter 7 then addresses the cellular aspects of the aging process in dentin. In Chapter 2 we start by exploring the changes in microstructure, chemical composition, and mechanical properties of radicular dentin as a function of aging. Specifically, the evolution in microstructures associated with sclerosis, mineral-to-collagen ratio and collagen cross-linking were correlated with the mechanical properties as a function of distance from the root apex. The findings indicate that the most severe degradation occurs near the root apex. In Chapter 3 we compare the structural behavior of radicular dentin from vital and non-vital teeth of senior patients using a matched-pair approach. The results indicate that the radicular dentin of teeth with root canal treatment (RCT) followed by oral function undergoes an accelerated degradation in comparison to that in teeth with vital roots. This process appears to be most associated with the extent of collagen cross-linking. Dehydration has been considered as a potential factor in Vertical Root Fractures (VRF) after the RCT. In Chapter 4 we characterized the spatial distribution in shrinkage of tooth roots with respect to donor age and prior RCT using digital image correlation. The RCT treated teeth of senior patients suffered the highest percentage of water loss. Dehydration-induced cracking initiates from the root surface towards the canal as a result of shrinkage. Chapter 5 focuses on acute embrittlement of dentin due to changes in the capacity for viscous deformation in the dentin matrix. Advanced dynamic mechanical analysis was applied to the dentin matrix using scanning mode nanoindentation. The findings revealed degradation in the intertubular component of radicular dentin (i.e. the collagen matrix) with aging, and an acceleration of the extent of age-related degradation near the apex and particularly within the tissue of pulpless (i.e. non-vital) teeth. In Chapter 6, autotransplantation of teeth after cryopreservation is discussed, which is an increasingly viable method for whole tooth replacement. The objective of this effort is to determine whether cryopreservation alters the microstructure of dentin or causes a reduction of its resistance to fracture. Results revealed that hidden damage within the dentin as a result of cryopreservation decreases the fatigue resistance and could render these teeth more susceptible to fracture. In Chapter 7, the role of odontoblasts in the progress of sclerosis and the degradation in strength of dentin with aging is discussed. The biophysical and biochemical alterations in dentin appear to result from changes in the microstructure and chemical composition of the dentinal tubules where odontoblastic extensions reside. The extent of odontoblast apoptosis is assessed along the radial direction of roots from teeth of different ages and is correlated to the chemical composition and mechanical properties of the radicular dentin. Chapter 8 presents a summary of the overall results and conclusions. A brief discussion of future research directions is also included.
Book Synopsis Surface Reactivity of Tooth Enamel with Dyes, Oxidizing Agents and Magnesium Ions and Its Effect on Tooth Color by : Mohamed Nur Abdallah
Download or read book Surface Reactivity of Tooth Enamel with Dyes, Oxidizing Agents and Magnesium Ions and Its Effect on Tooth Color written by Mohamed Nur Abdallah and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Enamel, the outer protective layer of human teeth, is constantly interacting with its surrounding harsh environment. These interactions play a major role in many mechanisms that affect the dental health such as tooth caries, tooth discoloration and plaque formation. Accordingly, most treatments used to maintain and/or restore dental health focus first on the enamel surface. Even though most of the enamel structure has been thoroughly studied, many of the enamel surface features, and the chemical reaction that occur on it, are not well understood. Extrinsic tooth discoloration poses a major problem to many patients and dentists. Most causes of extrinsic tooth staining have been well identified and are usually treated with hydrogen peroxide. However, the mechanism of extrinsic tooth discoloration and tooth bleaching using peroxide oxidizers are not fully understood. It is unknown why certain staining molecules attach to the enamel surface, whether peroxide radicals make teeth whiter by removing these stains, and why sometimes hydrogen peroxide does not work. Also, treating darkened teeth with peroxide agents has its limitations and disadvantages. This has pushed us to look for better and less harmful whitening agents. Recent studies have revealed that there is a correlation between crystallographic characteristics of enamel and its physical properties, such as tooth shade and microhardness. This discovery predicts that tooth properties can be changed by modifying its crystallographic structure. Since magnesium ions are known to react with synthetic hydroxyapatite and affect its crystallographic properties, it is possible that magnesium ions could react with dental enamel and induce changes in dental enamel crystallographic, optical and mechanical properties. Several significant conclusions and achievements are presented in this thesis. We demonstrated the presence of a carbon rich layer on the surface of enamel that contains relatively high amounts of calcium. This layer might explain the high staining ability of certain types of anionic staining agents that are among the most common causes of external tooth discoloration. Moreover, we showed that hydrogen peroxide does not induce significant changes in tooth enamel organic and inorganic relative contents, and it whitens teeth just by oxidizing their organic matrix. This finding is of great clinical significance since it explains the mechanism of tooth bleaching and the reasons behind the limited predictability of the treatment outcomes. Finally, we showed for the first time that magnesium ions can react with tooth enamel and induce a reduction in the size of enamel hydroxyapatite nanocrystals. This change in crystallography affected the enamel optical and mechanical properties; making the enamel harder and whiter. This is a new method that can be exploited to whiten teeth without using peroxide-based bleaching agents. We concluded that crystallographic ultrastructure plays a key role in defining the tooth enamel properties which can be tailored through ionic substitution for improvement of optical and mechanical properties without causing the possible negative effects of peroxide agents." --
Book Synopsis Effect of Sterilisation and Storage Conditions on Chemical and Mechanical Properties of Human Dentine by : Suhad Al-Nasrawi
Download or read book Effect of Sterilisation and Storage Conditions on Chemical and Mechanical Properties of Human Dentine written by Suhad Al-Nasrawi and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Hydrogen Peroxide and Sodium Perborate on Biomechanical Properties of Human Dentin by : Hui Kheng Chng
Download or read book Effect of Hydrogen Peroxide and Sodium Perborate on Biomechanical Properties of Human Dentin written by Hui Kheng Chng and published by . This book was released on 2000 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis EFFECTS OF HYDROGEN PEROXIDE BLEACHING ON HUMAN DENTIN AND ENAMEL MICROSTRUCTURE AND FUNCTION. by :
Download or read book EFFECTS OF HYDROGEN PEROXIDE BLEACHING ON HUMAN DENTIN AND ENAMEL MICROSTRUCTURE AND FUNCTION. written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years bleaching of vital teeth has become popular among both dentist and patients. Different bleaching agents were used for this purpose. They are either applied professionally at high dose (office bleaching) or by patient at lower dose (home bleaching). In the present work we studied the effects of a high concentration bleaching agent (35% hydrogen peroxide), and a low concentration bleaching agent (17% carbamide peroxide) on human enamel and dentin using Fourier Transform Infrared (FTIR) Spectroscopic Technique. The OH stretching band of hydroxyapatite at 3567 cm-1 appeared in the spectra of enamel tissue which was absent in dentin. Carbamide peroxide and hydrogen peroxide treatment induced some differences in enamel and dentin spectra according to control group spectra. While the treatment of hydrogen peroxide leaded to significant decrease in mineral to matrix ratio, carbamide peroxide treatment did not cause decrease in this level. In addition, organic components of the teeth were changed after the treatment of bleaching agents. The frequency of the Amide A and Amide I bands were significantly changed for enamel tissue after the treatment of high concentration bleaching agent. However, it is observed that these changes result from two different bleaching methods are negligible in dentin tissue. In conclusion it can be stated that hydrogen peroxide treatment caused dramatic changes in enamel structure according to carbamide peroxide treatment, but two methods did not cause significant changes in dentin tissue.
Book Synopsis Bleaching Techniques in Restorative Dentistry by : Linda Greenwall
Download or read book Bleaching Techniques in Restorative Dentistry written by Linda Greenwall and published by CRC Press. This book was released on 2001-06-07 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in bleaching teeth has grown dramatically in the last few years as new markets become available and stimulate further development. This guide is written to help the busy restorative dentist who needs to keep up to date with the types of product available, the techniques to use them effectively and safely, and how to use them in combination with restorative dentistry in treating patients.
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 Advances in Calcium Phosphate Biomaterials by : Besim Ben-Nissan
Download or read book Advances in Calcium Phosphate Biomaterials written by Besim Ben-Nissan and published by Springer Science & Business. This book was released on 2014-04-17 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Calcium Phosphate Biomaterials presents a comprehensive, state-of-the-art review of the latest advances in developing calcium phosphate biomaterials and their applications in medicine. It covers the fundamental structures, synthesis methods, characterization methods, and the physical and chemical properties of calcium phosphate biomaterials, as well as the synthesis and properties of calcium phosphate-based biomaterials in regenerative medicine and their clinical applications. The book brings together these new concepts, mechanisms and methods in contributions by both young and “veteran” academics, clinicians, and researchers to forward the knowledge and expertise on calcium phosphate and related materials. Accordingly, the book not only covers the fundamentals but also open new avenues for meeting future challenges in research and clinical applications. Besim Ben-Nissan is a Professor of Chemistry and Forensic Science at the University of Technology, Sydney, Australia
Book Synopsis An in Vitro Investigation of the Effect of Bleaching Agents and Tooth MousseTM on the Hardness of Human Enamel by : Asmaa Alkhatib
Download or read book An in Vitro Investigation of the Effect of Bleaching Agents and Tooth MousseTM on the Hardness of Human Enamel written by Asmaa Alkhatib and published by . This book was released on 2009 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Internal Tooth Bleaching Regimens on Composite-to-composite Bond Strength by : Raphael Marco Ferrari
Download or read book The Effects of Internal Tooth Bleaching Regimens on Composite-to-composite Bond Strength written by Raphael Marco Ferrari and published by . This book was released on 2013 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Endodontic Regeneration Medicaments on Mechanical Properties of Radicular Dentin by : Ghaeth H. Yassen
Download or read book The Effect of Endodontic Regeneration Medicaments on Mechanical Properties of Radicular Dentin written by Ghaeth H. Yassen and published by . This book was released on 2013 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: In thee third experiment, we investigated longitudinally the effect of medicaments on root fracture resistance and microhardness of radicular dentin. For the microhardness, the two-way interaction between group and time was significant (p
Download or read book BiodentineTM written by Imad About and published by Springer Nature. This book was released on 2021-10-20 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive guide to BiodentineTM, an innovative biocompatible and bioactive material based on pure tricalcium silicate that can permanently replace dentin and can also serve as a temporary enamel substitute. Although BiodentineTM has been widely used across the world for the past decade, this is the first book to be devoted to its properties, interactions with the soft and hard tissues, and its multiple clinical applications. The coverage encompasses applications in primary and permanent teeth, in specialties as diverse as restorative dentistry, endodontics, paediatric dentistry, dental traumatology, and prosthetic dentistry. BiodentineTM application both in vital pulp therapy and endodontic procedures is illustrated and clinical step by step protocols are provided. The book provides a detailed update on BiodentineTM use to preserve the pulp vitality in direct/indirect pulp capping, pulpotomy and irreversible pulpitis treatment. It also details BiodentineTM use for non-vital teeth treatment in indications such as root/furcation perforation repair, apexification as well as in regenerative endodontic procedures. BiodentineTM: Properties and Clinical Applications will be a rich source of guidance and information for all dentists as well as dental students and academics.
Book Synopsis Complete Dental Bleaching by : Ronald E. Goldstein
Download or read book Complete Dental Bleaching written by Ronald E. Goldstein and published by Quintessence Publishing (IL). This book was released on 1995 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: A text on the use of bleaching in the practice of esthetic dentistry. A chapter on the chemistry of bleaching shows how and why tooth bleaching is so effective. The following chapters are devoted to diagnosis and treatment planning, in-office bleaching of vital teeth, nightguard vital bleaching, and bleaching pulpless teeth. The final chapter integrates all of the various esthetic dental modalities and demonstrates how bleaching can be an integral part of most interdisciplinary treatment plans. Profusely illustrated with color photographs. Annotation copyright by Book News, Inc., Portland, OR
Book Synopsis Development, Function and Evolution of Teeth by : Mark F. Teaford
Download or read book Development, Function and Evolution of Teeth written by Mark F. Teaford and published by Cambridge University Press. This book was released on 2007-02-01 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this field there has been an explosion of information generated by scientific research. One of the beneficiaries of this has been the study of morphology, where new techniques and analyses have led to insights into a wide range of topics. Advances in genetics, histology, microstructure, biomechanics and morphometrics have allowed researchers to view teeth from alternative perspectives. However, there has been little communication between researchers in the different fields of dental research. This book brings together overviews on a wide range of dental topics linking genes, molecules and developmental mechanisms within an evolutionary framework. Written by the leading experts in the field, this book will stimulate co-operative research in fields as diverse as paleontology, molecular biology, developmental biology and functional morphology.
