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Relevant bibliographies by topics / Dental restorative composites

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Academic literature on the topic 'Dental restorative composites'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Dental restorative composites"

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Świderska, Jolanta, Zbigniew Czech, and Agnieszka Kowalczyk. "Polymerization shrinkage by investigation of uv curable dental restorative composites containing multifunctional methacrylates." Polish Journal of Chemical Technology 15, no. 2 (July 1, 2013): 81–85. http://dx.doi.org/10.2478/pjct-2013-0027.

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Typical commercial restorative dental compositions in the form of medical resins contain in-organic fillers, multifunctional methacrylates and photoinitiators. The currently used resins for direct composite restoratives have been mainly based on acrylic chemistry to this day. The main problem with the application and radiation curing process is the shrinkage of photoreactive dental materials during and after UV curing. Shrinkage of restorative radiation curable dental composites is a phenomenon of polymerization shrinkage, typical behavior of multifunctional methacrylates during the polymerization process. The important factors in curing of dental composites are: the kind and concentration of the used methacrylate, its functionality, double bond concentration, the kind and concentration of the added photoinitiator and UV dose emitted by the UV-lamp. They are investigated multifunctional 1,3-butanediol dimethacrylate (1,3-BDDMA), diethylene glycol dimethacrylate (DEGDMA), triethylene glycol dimethacrylate (TEGDMA), trimethylolpropane trimethacrylate (TMPTMA), 2,2-bis-[4-(2-hydroxy-3-methacryxloyloxypropyl) phenyl]propane (Bis-GMA), ethoxylated Bis-GMA (EBPDMA) and dodecandiol dimethacrylate (DDDMA). Reduction of polymerization shrinkage of restorative dental compositions is at the moment a major problem of dental technology. This problem can be solved through an application of photoreactive non-tacky multifunctional methacrylates in the investigated dental adhesive fillings.

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Bonta, Dan Florin, Sergiu Alexandru Tofan, Liana Todor, Mariana Miron, Cristina Ioana Talpos, Raluca Mioara Cosroaba, florin Borcan, and Ramona Amina Popovici. "In vitro Study on Mechanical Properties of Polyacid-modified Composite Resins (Compomers)." Materiale Plastice 59, no. 1 (April 5, 2022): 90–98. http://dx.doi.org/10.37358/mp.22.1.5562.

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At the beginning of the 90 s on the market of dental restoration materials appeared compomers, polyacid modified composite resins (PMC). The term compomer suggests a combination of glass-ionomer and composite technology. This has led to confusion about how it relates to dental structures. The properties and adhesion of compomers to dental structures suggest a closer connection with composites than with glass ionomers. They do not have direct chemical adhesion to any tooth structure it adheres similar to the composites through a separate binding agent. However, their proximity to composites does not make them substitutes of composites. Compomers are a versatile class of dental restorative biomaterials, whose clinical benefits are particularly useful in pediatric dentistry.

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Alreshaid, L., W. El-Badrawy, HP Lawrence, MJ Santos, and A. Prakki. "Composite versus Amalgam Restorations Placed in Canadian Dental Schools." Operative Dentistry 46, no. 6 (November 1, 2021): 621–30. http://dx.doi.org/10.2341/20-212-c.

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SUMMARY Objectives To investigate the latest teaching policies of posterior composite placement versus amalgam and to determine the actual numbers of posterior composites versus amalgam restorations placed in Canadian dental schools, over the years from 2008 to 2018. Methods Emails were sent to Chairs/Heads of Restorative Departments and Clinic Directors of all 10 Canadian dental schools to collect data in the forms of: 1) Questionnaire on current teaching policies of posterior composite and amalgam restorations; 2) data entry form to collect the actual numbers of posterior composite and amalgam restorations placed in their clinics. Results For the teaching questionnaire, the response rate was 90% (n=9). Seven (78%) of the responding schools reported that they assign 25%–50% of their preclinical restorative teaching time towards posterior composite placement. While, three (33%) of the responding schools allocated 50%–75% of their restorative teaching towards amalgam placement. Data entry response rate was 80% (n=8). Amalgam material was dominant in the restoration distribution from 2008 to 2012. While from 2013 to 2018, resin composite material was dominant in all eight responding schools. Linear regression analysis revealed a significant increasing trend in placing posterior composites in all the responding schools over time (p<0.05). Conclusions Data analysis revealed a clear trend towards an increase of posterior composite restoration placement and a decrease in the number of amalgam restorations placed. However, the teaching time assigned for posterior composite is not aligned with quantity placed. Review and adjustment of time allocated for teaching and training of each material are recommended.

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Cheng, Jingru, Yuyi Deng, Yujin Tan, Jiawei Li, Yongsheng Fei, Congcong Wang, Jingjing Zhang, Chenxi Niu, Qian Fu, and Lingbin Lu. "Preparation of Silica Aerogel/Resin Composites and Their Application in Dental Restorative Materials." Molecules 27, no. 14 (July 9, 2022): 4414. http://dx.doi.org/10.3390/molecules27144414.

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As the most advanced aerogel material, silica aerogel has had transformative industrial impacts. However, the use of silica aerogel is currently limited to the field of thermal insulation materials, so it is urgent to expand its application into other fields. In this work, silica aerogel/resin composites were successfully prepared by combining silica aerogel with a resin matrix for dental restoration. The applications of this material in the field of dental restoration, as well as its performance, are discussed in depth. It was demonstrated that, when the ratio of the resin matrix Bis-GMA to TEGDMA was 1:1, and the content of silica aerogel with 50 μm particle size was 12.5%, the composite achieved excellent mechanical properties. The flexural strength of the silica aerogel/resin composite reached 62.9546 MPa, which was more than five times that of the pure resin. Due to the presence of the silica aerogel, the composite also demonstrated outstanding antibacterial capabilities, meeting the demand for antimicrobial properties in dental materials. This work successfully investigated the prospect of using commercially available silica aerogels in dental restorative materials; we provide an easy method for using silica aerogels as dental restorative materials, as well as a reference for their application in the field of biomedical materials.

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Huyang, George, and Jirun Sun. "Clinically Applicable Self-Healing Dental Resin Composites." MRS Advances 1, no. 8 (2016): 547–52. http://dx.doi.org/10.1557/adv.2016.86.

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ABSTRACTSelf-healing is one of the most desired material properties. Herein, we present the design and development of a new self-healing dental composite (SHDC) that can heal micro-cracks autonomously. The SHDC has two functional components in addition to contemporary dental composites: healing powder (HP) and healing liquid (HL) encapsulated in silica microcapsules. The autonomous healing is triggered by micro-cracks which fracture microcapsules in their propagation path and release the HL. As a consequence, the released HL dissolves and reacts with the HP, and then fill the micro-cracks with a cement-like new material. This 3-step crack-release-heal process prevents micro-cracks from causing restoration failure, thus improving the service life of dental restorative material. The mechanical performance of the SHDC prepared were evaluated in terms of elastic modulus and fracture toughness, which were in the upper level compared to commercial dental restorative materials, and the self-healing capability was confirmed through fracture toughness recovery test. In addition, the SHDCs were made with clinically-tested, biocompatible materials, which makes them readily applicable as medical devices.

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Malara, P., and W. Świderski. "Contemporary aesthetic restorative dental composite materials." Journal of Achievements in Materials and Manufacturing Engineering 78, no. 1 (August 1, 2016): 32–40. http://dx.doi.org/10.5604/01.3001.0010.1493.

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Purpose: This is a review paper that gives an insight into the most popular group ofaesthetic dental materials - dental composite materials. This article describes the historicalbackground, the main features of this group of materials, the cathegorization of the materialsin relation to clinical applications and the polymerization proces.Design/methodology/approach: This review is based on the contemporary scientificliterature most relevant to the topic. The literature search has been made in Elsevier -Science Direct.Findings: Light-curing dental composites exhibit some resemblance to the constructionof the hard tissues of the tooth. They also consist of two basic components. These are:an organic matrix and an inorganic filler. The third component, which is regularly added, isso-called binding agent. According to the composition of the materials they make a goodchoice for aesthetic restoration in natural dentition.Practical implications: In the clinical observations there are many complications resultingfrom inadequate polymerization of composite materials. This may be the result of poorquality of curing lights of a very low intensity, too long distance between the tip of the lampand the surface of the material or improper exposure timeOriginality/value: Dental composite materials are the only group of dental materialsin which these features are combined together, ensuring naturally looking final effect ofthe restoration. Easy handling of the dental composite materials together with effectivepolymerization process with portable light units make these materials a good choice forclinical use.

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Seifan, Mostafa, Zahra Sarabadani, and Aydin Berenjian. "Development of an Innovative Urease-Aided Self-Healing Dental Composite." Catalysts 10, no. 1 (January 7, 2020): 84. http://dx.doi.org/10.3390/catal10010084.

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Dental restorative materials suffer from major drawbacks, namely fracture and shrinkage, which result in failure and require restoration and replacement. There are different methods to address these issues, such as increasing the filler load or changing the resin matrix of the composite. In the present work, we introduce a new viable process to heal the generated cracks with the aid of urease enzyme. In this system, urease breaks down the salivary urea which later binds with calcium to form calcium carbonate (CaCO3). The formation of insoluble CaCO3 fills any resultant fracture or shrinkage from the dental composure hardening step. The healing process and the formation of CaCO3 within dental composites were successfully confirmed by optical microscope, scanning electron microscopy (SEM), and energy-dispersive X-ray (EDS) methods. This research demonstrates a new protocol to increase the service life of dental restoration composites in the near future.

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Nicholson, John W. "Fluoride-Releasing Dental Restorative Materials: An Update." Balkan Journal of Dental Medicine 18, no. 2 (July 1, 2014): 60–69. http://dx.doi.org/10.1515/bjdm-2015-0010.

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SUMMARYThe fluoride ion has a well-established beneficial role in dentistry in protecting the teeth from assault by caries. It is known to contribute to the dynamic mineralisation process of the natural tooth mineral, and also to become incorporated with the mineral phase, forming a thin layer of fluorapatite. This is more resistant to acid attack than the native hydroxyapatite, hence protects the tooth against further decay. Other recently discovered aspects of the role and uptake of fluoride will also be discussed.One of the widely used dental restoratives, the glass-ionomer dental cement, is able to release fluoride in a sustained manner that may continue for many years, and this is seen as clinically beneficial. The closely related resin-modified glass-ionomer cement, and also the polyacid-modified composite resin (“compomer”) are able to do the same. There are also fluoride-containing conventional composite resins able to release fluoride.These various materials are reviewed and the way in which they release fluoride are described, as well as the effectiveness of the release at the levels involved. Studies of effectiveness of fluoride release from these various classes of material are reviewed, and shown to suggest that release from conventional and resin-modified glass-ionomers is more beneficial than from composite resins. This is attributed to 2 causes: firstly, that it is not possible to replace the lost fluoride in composites, unlike glass-ionomers, and secondly because the other ions released from glass-ionomers (calcium, phosphate) are able to contribute to local remineralisation of the tooth. The absence of these other ions in fluoridated composites means that remineralisation is able to occur to a lesser extent, if at all.

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Basudan, Thuraya, Aymen Neyaz, Norah Alnasser, Afaf Alabdali, Walaa Alqahtan, Ghadah Asiri, Latifah Alshammari, et al. "Improvement of Quality of Life through Nanoparticles in Restorative Dentistry." Journal of Healthcare Sciences 02, no. 12 (2022): 560–67. http://dx.doi.org/10.52533/johs.2022.21209.

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Dental methods aimed at dental rehabilitation, regional anesthesia, orthodontic realigning, permanent hypersensitivity treatment, covalent bonding diamondized enamel, dental health preservation using mechanical dentifrobots, and the formation of artificial bone and teeth are among the possible uses of nanotools in dentistry. The evaluation and treatment of problems affecting the teeth and their surrounding tissues are the focus of restorative dentistry. For the restoration of tooth function and the repair and replacement of damaged tooth structures as well as better aesthetics, advanced procedures are required. In the past few years, resin-based dental restorative materials have made significant progress. Dental composite resin's mechanical performance, minimal polymerization contraction, strong wear resistance, and surface hardness can all be considerably improved by adding nanoparticles to the matrix. To date, nanocomposites for the repair of tooth structure have made one of the most significant contributions to restorative and cosmetic dentistry. Nanocomposites' characteristics aid in minimizing polymerization loss. Their microhardness is higher than that of already employed posterior resin-based composites, and the improved polishability properties in turn result in a smoother surface with better shade qualities. Nanocomposites have a number of benefits, including reduced weight, excellent thermal and electrical properties, antimicrobial activity, and the ability to remineralize dental defects. The other nanotools used in restorative dentistry are nanoadhesives, nanoionomers and nanoendodontic sealants. Nanoadhesives protect against failure of a restoration from bacterial invasion occurs due to spaces between restorative material and preparation margins. Nanoionomers chemically adhere to the surface of the tooth and offer advantages of enhanced bond strength, chemical stability, and insoluble nature. Nano endodontic sealers have the advantage of sealing better than conventional sealers and employing nanoparticles effectively acts as an antibacterial agent. Due to its potential uses and advantages, there is a growing demand for and interest in nano-based dental materials.

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Dhar, V., KL Hsu, JA Coll, E. Ginsberg, BM Ball, S. Chhibber, M. Johnson, M. Kim, N. Modaresi, and N. Tinanoff. "Evidence-based Update of Pediatric Dental Restorative Procedures: Dental Materials." Journal of Clinical Pediatric Dentistry 39, no. 4 (June 1, 2015): 303–10. http://dx.doi.org/10.17796/1053-4628-39.4.303.

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Background: The science of dental materials and restorative care in children and adolescent is constantly evolving, and the ongoing search for ideal restorative materials has led to plethora of research. Aim: To provide an evidence base to assist dental practitioners choose appropriate restorative care for children and adolescents. Study design: This evidence-based review appraises this literature, primarily between the years 1995–2013, for efficacy of dental amalgam, composites, glass ionomer cements, compomers, preformed metal crowns and anterior esthetic restorations. The assessment of evidence for each dental material was based on a strong evidence, evidence in favor, expert opinion, and evidence against by consensus of the authors. Results: There is varying level of evidence for the use of restorative materials like amalgam, composites, glass ionomers, resin-modified glass-ionomers, compomers, stainless steel crowns and anterior crowns for both primary and permanent teeth. Conclusions: A substantial amount data is available on restorative materials used in pediatric dentistry; however, there exists substantial evidence from systematic reviews and randomized clinical trials and clinicians need to examine and understand the available literature evidence carefully to aid them in clinical decision making.

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Dissertations / Theses on the topic "Dental restorative composites"

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Adusei, Gabriel Opoku. "Development of novel organophosphorus based dental restorative materials." Thesis, King's College London (University of London), 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289857.

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Mikhail, Sarah Shawky. "Optical Properties of Two Brands of Composite Restorative Materials and Confirmation of Theoretical Predictions for Layering." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1316436113.

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Chadwick, R. D. "The durability of restorative materials." Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383980.

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Wang, Guigui. "Perfluorotriethylene glycol dimethacrylate modified composite resins for improved dental restoratives." The Ohio State University, 1998. http://catalog.hathitrust.org/api/volumes/oclc/47350511.html.

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Sunnegårdh-Grönberg, Karin. "Calcium aluminate cement as dental restorative : Mechanical properties and clinical durability." Doctoral thesis, Umeå universitet, Tandhygienistprogrammet, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-270.

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In 1995, the Swedish government recommended the discontinuation of amalgam as restorative in paediatric dentistry. Because the mercury content in amalgam constitutes an environmental hazard, its use has declined. The use of resin composites is increasing, but the polymerisation shrinkage of the material is still undesirably high, and the handling of uncured resin can cause contact dermatitis. A new restorative material has recently been developed in Sweden as an alternative to amalgam and resin composite: a calcium aluminate cement (CAC). CAC has been marketed as a ceramic direct restorative for posterior restorations (class I, II) and for class V restorations. This thesis evaluates mechanical properties and clinical durability of the calcium aluminate cement when used for class II restorations. Hardness, in vitro wear, flexural strength, flexural modulus, and surface roughness were evaluated. A scanning electron replica method was used for evaluation of the interfacial adaptation to tooth structures in vivo. The durability was studied in a 2-year intra-individually clinical follow-up of class II restorations. Major results and conclusions from the studies are as follows: • The CAC was a relatively hard material, harder than resin-modified glass ionomer cement but within the range of resin composites. The CAC wore less than resin-modified glass ionomer cement but more than resin composite. • Flexural strength of CAC was in the same range as that of zinc phosphate cement and far below that of both resin composite and resin-modified glass ionomer cement. Flexural modulus of CAC was higher than both resin composite and resin-modified glass ionomer cement. The low flexural strength of CAC precludes its use in stress-bearing areas. • Surface roughness of CAC could be decreased by several polishing techniques. • For CAC restorations, interfacial adaptation was higher to dentin but lower to enamel compared with resin composite restorations. Fractures were found perpendicular to the boarders of all CAC restorations and may indicate expansion of the material. • After 2 years of clinical service, the class II CAC restorations showed an unacceptably high failure rate. Material fractures and tooth fractures were the main reasons for failure.

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Sunnegårdh-Grönberg, Karin. "Calcium aluminate cement as dental restorative : mechanical properties and clinical durability /." Umeå : Univ, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-270.

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Cheung, Big-chu Gloria. "An in vitro study of selected mechanical properties and surface profiles of some p̀osterior' composite resin restorative materials." Click to view the E-thesis via HKUTO, 1987. http://sunzi.lib.hku.hk/HKUTO/record/B38628259.

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張碧珠 and Big-chu Gloria Cheung. "An in vitro study of selected mechanical properties and surface profiles of some ��posterior' composite resin restorative materials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1987. http://hub.hku.hk/bib/B38628259.

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Sousa, Rosane Pontes de. "Anticariogenic in situ effect of different restorative dental materials." Universidade Federal do CearÃ, 2008. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1358.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico
Tooth structure immediately adjacent to restorations is susceptible to secondary caries, which may be caused by imperfect adaptation of restorative materials and subsequent microorganism colonization. Therefore, in order to identify methods of preventing secondary caries and increasing clinical dental restoration durability, different restorative dental materials have been introduced and applied in dental clinics. Thus, this in situ study assessed the effects of different restorative materials on the microbiological composition of dental biofilm and evaluated their ability of protecting the adjacent enamel against acid attacks from bacterial activity. A double-blind, split-mouth design was performed in one phase of 14 days, during which, 20 volunteers wore intra-oral palatal devices with five human enamel slabs, which were extra-orally restored according to the manufacturerâs specifications, using one of the following materials: Filtek Z 250/Single Bond composite resin; Permite amalgam; Fuji II encapsulated resin-modified glass ionomer; Vitremer resin-modified glass ionomer and Ketac Molar conventional glass ionomer.. During the experimental period, all subjects used fluoride-containing dentifrice 3x/day and a 20% sucrose solution was dripped onto the slabs 8x/day in predetermined times. The biofilm formed on the slabs was analyzed to determine total and mutans streptococci as well as lactobacilli counts. Demineralization (delta S) was determined on enamel by cross-sectional microhardness at 20 and 70 -Âm from the restoration margin. In order to verify the differences among the treatments, Kruskal-Wallis and ANOVA followed by Minimum Squares test were applied for cariogenic microbiota and delta S, respectivly. No statistically significant differences were found in the cariogenic microbiota grown on the slabs. At 20-Âm distance, only Fuji II statistically differed from the other groups presenting the lowest demineralization. At 70-Âm, Fuji II significantly inhibited demineralization when compared to Permite, Filtek-Z-250 and Ketac Molar. Concluding, in the background of fluoride dentifrice and under the cariogenic exposure condition of this study, only the encapsulated resin-modified glass ionomer material provided additional protection against secondary caries.
A estrutura dentÃria imediatamente adjacente a restauraÃÃes Ã suscetÃvel ao surgimento de cÃrie secundÃria, que pode ocorrer devido a imperfeiÃÃes na adaptaÃÃo de materiais restauradores e subseqÃente colonizaÃÃo por microrganismos. Logo, com o objetivo de identificar os mÃtodos de prevenÃÃo da cÃrie secundÃria e aumentar a longevidade das restauraÃÃes, diferentes materiais restauradores tÃm sido introduzidos e usados na clÃnica odontolÃgica. Desta forma, este estudo in situ avaliou os efeitos de diferentes materiais restauradores na composiÃÃo microbiolÃgica do biofilme dental bem como a habilidade destes materiais em proteger o esmalte adjacente dos ataques Ãcidos provenientes da atividade bacteriana. Foi empregado um delineamento duplo-cego, âsplit-mouthâ realizado em uma fase de 14 dias, durante a qual, 20 voluntÃrios utilizaram dispositivos intra-orais palatinos com cinco blocos de esmalte dental humano que foram restaurados extra-oralmente, de acordo com as recomendaÃÃes do fabricante com um dos seguintes materiais: Resina composta Filtek Z250/Single Bond (grupo controle), AmÃlgama Permite, IonÃmero de vidro modificado por resina encapsulado Fuji II, IonÃmero de vidro modificado por resina Vitremer e IonÃmero de vidro convencional Ketac Molar. Durante o perÃodo experimental, os voluntÃrios utilizaram dentifrÃcio fluoretado, 3 vezes ao dia e gotejaram sobre os blocos, uma soluÃÃo de sacarose a 20%, 8 vezes ao dia em horÃrios prÃ-determinados. No 14o dia, o biofilme formado sobre os blocos foi removido para determinar a contagem de estreptococos totais e estreptococos mutans, bem como lactobacilos. A desmineralizaÃÃo (delta S) ao redor da restauraÃÃo foi avaliada atravÃs da anÃlise de microdureza em corte longitudinal do esmalte a 20 e 70 Âm da margem da restauraÃÃo. Para detectar as diferenÃas entre os tratamentos, foram aplicados os testes Kruskal-Wallis e ANOVA seguida do teste dos quadrados mÃnimos para a microbiota cariogÃnica e delta S, respectivamente. NÃo foram encontradas diferenÃas estatisticamente significativas na microbiota cariogÃnica formada sobre os blocos. Na distÃncia 20 Âm, somente o Fuji II diferiu estatisticamente dos outros grupos apresentando a menor desmineralizaÃÃo. A 70 Âm, o Fuji II inibiu significativamente a desmineralizaÃÃo quando comparado ao Permite, Filtek-Z-250 e Ketac Molar. Conclui-se que na situaÃÃo de uso de dentÃfricio flouretado associada ao desafio cariogÃnico do presente estudo, somente, o ionÃmero de vidro modificado por resina encapsulado apresentou uma proteÃÃo adicional contra o desenvolvimento de cÃrie secundÃria

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Khan, Abdul Samad. "A novel bioactive nano-composite : synthesis and characterisation with potential use as dental restorative material." Thesis, Queen Mary, University of London, 2009. http://qmro.qmul.ac.uk/xmlui/handle/123456789/441.

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It is desirable for a dental restorative material to have bioactive and bonding properties. This study focuses on the synthesis of a covalently-linked polyurethane/nanohydroxyapatite (PU/nHA) composite and evaluates its chemical, physical, thermal and biochemical characteristics. nHA powder was produced from the sol-gel and novel composite material was chemically prepared by utilising solvent polymerisation. The resulting composites were analysed by chemical, thermal, and mechanical characterisations and electrospun to form fibre mats. The composites were hydrolytically degraded in deionised water and phosphate buffer solution (PBS) and were analysed. Bioactive behaviour was determined in modified-simulated body fluid. The bioadhesion with dentine was analysed in distilled water and artificial saliva. Cell growth and proliferation was measured and number of adhering bacteria was determined and serial dilution followed by plating for colony forming units per disc. Spectral analyses showed the grafted isocyanate and ether peaks on nHA indicating that urethane linkage was established. Covalent-linkage between nHA and PU were found in this novel composite with no silane agent. The physical and thermal properties were enhanced by nHA. These composites had high resistance toward hydrolysis and little degradation was observed. Bioadhesion and bioactivity analysis showed the composite adhered firmly on the tooth surface (dentine) and bond strength was similar to existing obturating material. Higher nHA content composite showed a thicker layer of adhesion. Cells were proliferated although at a lower rate of growth compared to PU, whereas, there was reduction in bacteria adhering to the grafted composite compared to PU. With its low bacterial adhesion and biocompatibility it may provide a promising solution to reduce infections. The electrospun nano-fibres were successfully developed and revealed no loose nHA particles. Hence, this novel composite has the potential to be used as a bioactive dental restorative material.

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Books on the topic "Dental restorative composites"

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E, Jordan Ronald, ed. Esthetic composite bonding: Techniques and materials. Toronto: Decker, 1988.

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Jordan, Ronald E. Esthetic composite bonding: Techniques and materials. 2nd ed. St. Louis: Mosby-Year Book, 1993.

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Örtengren, Ulf. On composite resin materials: Degradation, erosin and possible adverse effects in dentists. Göteborg, Sweden: Department of Prosthetic Dentistry / Dental Materials Science and Department of Occupational Medicine, 2000.

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Lundin, Sven-Åke. Studies on posterior composite resins with special reference to class II restorations. Göteborg: University of Göteborg, 1990.

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Powers, Laurence James. A study of posterior composite resin dental restorative materials with special reference to the sorption of water and plane strain fracture toughness. Toronto: Faculty of Dentistry, University of Toronto, 1988.

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Hendriks, Francisca Helena Johanna. Posterior composite restorations: An experimental clinical study. 1985.

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Powers, Laurence James. A study of posterior composite resin dental restorative materials with special reference to the sorption of water and plane strain fracture toughness. 1988.

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Book chapters on the topic "Dental restorative composites"

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Dudea, Diana, Camelia Alb, Bogdan Culic, and Florin Alb. "Performance of Dental Composites in Restorative Dentistry." In Handbook of Bioceramics and Biocomposites, 1075–114. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-12460-5_53.

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Dudea, Diana, Camelia Alb, Bogdan Culic, and Florin Alb. "Performance of Dental Composites in Restorative Dentistry." In Handbook of Bioceramics and Biocomposites, 1–40. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-09230-0_53-1.

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Prati, Carlo, Eugenio Toschi, Cesare Nucci, Romano Mongiorgi, and Antonio Savino. "Dental Ceramics and Composite Resins as Restorative Materials." In Bioceramics and the Human Body, 256–59. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2896-4_34.

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Korach, Chad S., Matvey Sirotkin, and Ranjith Krishna Pai. "A Novel Dental Restorative Composite Fabricated with Nanostructured Poly(KAMPS)/Aragonite Filler." In Mechanics of Biological Systems and Materials, Volume 4, 79–82. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00777-9_11.

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Shiekh, Rayees Ahmad, and Visweswara Rao Pasupuleti. "Mesoporous Silica Powder for Dental Restoration Composites from Rice Husk: A Green Sol–Gel Synthesis." In Agricultural Biomass Based Potential Materials, 245–58. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-13847-3_12.

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Yu, Qing Song, H. Li, A. C. Ritts, B. Yang, M. Chen, L. Hong, C. Xu, X. Yao, and Y. Wang. "Non-thermal Atmospheric Plasma Treatment for Deactivation of Oral Bacteria and Improvement of Dental Composite Restoration." In Plasma for Bio-Decontamination, Medicine and Food Security, 215–28. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-2852-3_17.

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"Restorative Materials—Composites and Polymers." In Craig's Restorative Dental Materials, 161–98. Elsevier, 2012. http://dx.doi.org/10.1016/b978-0-323-08108-5.10009-x.

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Joshi, Gajendra, Devansh Goyal, and Gautam Chaturvedi. "Mechanical Properties of Dental Restorative Composite Materials: A Review." In SCRS Proceedings of International Conference of Undergraduate Students, 65–73. Soft Computing Research Society, 2023. http://dx.doi.org/10.52458/978-81-95502-01-1-7.

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The objective of this present article is to review and appraise the method to determine fracture, deformation wears resistance of dental resin composite in an attempt to suggest the method and properties for investigations. This study aims to investigate the effect of different resin fillers and monomers currently available on mechanical properties and physical properties. The hybrid dental composites also contribute significantly to increasing the mechanical and tribological properties. A silane-treated filler improved the dental composite bonding strength. It is further revealed that the mechanical properties of the dental composite were improved by adding filler as well as by providing silane treatment to filler to increase the adhesion properties between resin and filler.

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Banerjee, Avijit, and Timothy F. Watson. "Restorative materials and their relationship to tooth structure." In Pickard's Guide to Minimally Invasive Operative Dentistry. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780198712091.003.0010.

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Modern restorative materials can be classified in several ways, in terms of their retention (chemically adhesive, macro-, micro- or even nanomechanical), their chemistry (e.g. resin-based vs. acid–base reaction, filler particles), or their clinical properties (e.g. aesthetics, strength, handling). It is essential that these materials are considered closely with the histological substrate to which they will adhere or with which they will interact, in order to understand the complexities of each system and their potential clinical uses. This chapter will outline and discuss aspects of dental materials science to enable the reader to understand and appreciate the links with relevant histology and relate this to the clinical aspects of minimally invasive operative dentistry. Also discussed is dental amalgam, still a popular restorative material among many dentists worldwide, although clinical indications for its use are becoming more limited as treatment rationales change and adhesive materials improve. This text will require supplementation from suitable dental histology and detailed dental material science texts. Dental resin composites are aesthetic, plastic adhesive restorative materials that consist of co-polymerized methacrylate-based resin chains embedding inert filler particles (conferring strength and wear resistance) and requiring a separate adhesive (bonding agent) to micro-/ nano-mechanically bond them to either enamel or dentine, respectively. However, not all modern dental composites are based purely on this methacrylate resin chemistry (see Section 7.2.6). Therefore the term ‘composite resin’ is inappropriate and should not be used. Resin composites have developed over the past 50 years, after the introduction of the acid-etch technique (Buonocore, 1955) and methacrylate monomers (Bowen’s resin—Bis-GMA (1971); see Section 7.2.2). The unset (or uncured) material consists of a mixture of several different types of resin methacrylate monomers, most of which are hydrophobic (water-hating) in nature (see Figure 7.1). The monomer chain length affects certain properties of the resin composite:… • Viscosity (or flowability) of the material. This is important in order to minimize voids trapped within the uncured composite during placement and packing within the depths of a cavity (the stiffer the consistency, the greater the risk of trapping air voids). The shorter the uncured monomer length (and therefore the lower the molecular weight), the lower is its viscosity. Often shorter-length, lower-molecular- weight methacrylate monomers form the basis of the resin chemistry of flowable resin composites, and other diluent molecules may be added.

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"Case Study: Natural Tooth and Dental Restorative Materials." In Tribology of Ceramics and Composites, 251–75. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118021668.ch16.

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Conference papers on the topic "Dental restorative composites"

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Abdel Hamid, Dalia, Amal Esawi, Inas Sami, and Randa Elsalawy. "Characterization of Nano- and Micro-Filled Resin Composites Used as Dental Restorative Materials." In ASME 2008 2nd Multifunctional Nanocomposites and Nanomaterials International Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/mn2008-47053.

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Adhesively-bonded resin composites have the advantage of conserving sound tooth structure with the potential for tooth reinforcement, while at the same time providing an aesthetically acceptable restoration. However, no composite material has been able to meet both the functional needs of posterior restorations and the superior aesthetics required for anterior restoration. In an attempt to develop a dental resin composite that had the mechanical strength of hybrid composite materials and the superior polish and gloss retention associated with microfilled materials, nanofilled resin composites have been introduced in the market. Although nanofillers are the most popular fillers utilized in current visible light-activated dental resin composites and are claimed to be the solution for the most challenging material limitations as a universal restorative material, the mechanisms by which these fillers influence the resin composite properties are not well explained. In this study, some physical and mechanical properties of a nanofilled resin composite containing 60 vol. % zirconia and silica fillers were evaluated and compared to those of a microhybrid resin composite of the same composition. The nanofilled resin composite was found to have equivalent polymerization shrinkage and depth of cure to the microhybrid material but a slightly lower degree of conversion and density. Regarding mechanical behaviour, although the nanocomposite was found to exhibit significantly higher wear resistance, and equivalent flexural strength, its indentation modulus and nanohardness were slightly lower. Field-emission scanning electron microscopy (FE-SEM) analysis was conducted in order to evaluate the microstructure and to obtain a better understanding of the effect of the nanofillers on the behaviour of the nanocomposite.

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Rafiee, M. A., and J. Rafiee. "Strength properties of light-cured dental restorative composites." In 2009 IEEE 35th Annual Northeast Bioengineering Conference. IEEE, 2009. http://dx.doi.org/10.1109/nebc.2009.4967816.

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Grassia, Luigi, and Alberto D’Amore. "Finite element calculation of residual stress in dental restorative material." In 6TH INTERNATIONAL CONFERENCE ON TIMES OF POLYMERS (TOP) AND COMPOSITES. AIP, 2012. http://dx.doi.org/10.1063/1.4738480.

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Laughlin, Gayle A., John L. Williams, and J. David Eick. "An Elastic/Viscoplastic Finite Element Model for Predicting Polymerization Stresses in Light-Activated Dental Composites." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-43789.

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The purpose of this paper is to apply a finite deformation, elastic/viscoplastic approach to predict curing stresses in three light-cured dental composites, using Perzyna’s theory. Time-dependent constitutive parameters were obtained from mercury dilatometry, dynamic mechanical analysis and constrained shrinkage strerss testing. The numerical approach was verified by using the results of an experiment on a simple aluminum tooth model of a cavity preparation that was bulk-filled with light-cured dental composite restorative materials. The numerically predicted strain patterns were similar to those seen experimentally for the three different dental composites.

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Devaprakasam, D., P. V. Hatton, G. Moebus, and B. J. Inkson. "Nanomechanical and Nanotribological Properties of Nano- and Micro-Particle Filled Polymer Composites Used for Dental Restorative Applications." In ASME/STLE 2007 International Joint Tribology Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ijtc2007-44182.

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The objective of this work is to quantify nanomechanical and nanotribological properties of nano- and micro-particles filled polymer composites used for the dental restorative applications. Nanotribological performances of the two polymer composites with different reinforcing particulates were investigated using advanced microscopy techniques. Both the polymer composites composed of same dimethacrylate based monomeric mixture, Bisphenol-A-glycidyldimethacrylate (Bis-GMA), triethylene glycoldimethacrylate (TEGDMA), urethane dimethacrylate (UDMA), as matrix. It was found that the elastic modulus, hardness, particle size, shape, distribution and agglomeration significantly influence the friction and wear characteristics of the polymer composites. The results show that nanotribological performance of nanoparticle reinforced polymer composites is better than the microparticle reinforced polymer composites.

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Wellinghoff, S. T., D. P. Nicolella, D. P. Hanson, H. R. Rawls, and B. K. Norling. "Photopolymerizable Liquid Crystal Monomer-Oxide Nanoparticle Composites." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-39367.

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Methacrylate and acrylate terminated monomers can be rapidly polymerized to polymer glasses useful in biomaterials, photolithography and rapid prototyping, optical coatings and composites. Unfortunately, polymerization shrinkage results in loss of tolerance and the development of internal stresses which can be especially critical in the case of highly crosslinked glasses. Structurally complicated oligomeric mixes of dimethacrylate monomers that exhibit a nematic liquid crystal to isotropic transition above room temperature have been synthesized in a low cost one pot synthesis to surmount the problem of polymerization shrinkage and the propensity of single component monomers to crystallize from the liquid state. Photopolymerization from the ordered liquid crystal state into a less ordered glass minimizes volumetric shrinkages to between 1–2% at greater than 90% polymerization conversion. These polymer glasses exhibited elastic bending moduli of 1.2 GPa to 1.5GPa, fracture strengths of 70–100MPa and fracture toughness of K=0.3–0.4 (MPa)1/2. In some cases the glasses exhibited ductile behavior which is unusual for highly crosslinked materials. Room temperature viscosities of 100P–2000P permit facile processing of the liquid crystal monomers with inorganic particles to make dental restorative composites.

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Wang, Shuang, Zhenzhen Xu, Xiaofei Wang, and Hongna Gao. "Evaluation of cytotoxicity of dental restorative nanometer hydroxyapatite composite resin in vitro by dentin barrier method." In 4TH INTERNATIONAL CONFERENCE ON FRONTIERS OF BIOLOGICAL SCIENCES AND ENGINEERING (FBSE 2021). AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0094276.

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Armencia, Adina Oana, Roxana Ionela Vasluianu, Dana Gabriela Budala, Dragos Vicoveanu, Dragos Ioan Virvescu, Elena Raluca Baciu, and Carina Balcos. "Tribological Comparative Study on Two Composite Materials for Restorative Dental Applications." In 2021 International Conference on e-Health and Bioengineering (EHB). IEEE, 2021. http://dx.doi.org/10.1109/ehb52898.2021.9657637.

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Lodato, Vincenzo, Roberto De Santis, Vito Gallicchio, Carlo Rengo, Gianrico Spagnuolo, and Sandro Rengo. "Dentinal temperature rise during photo-activation of restorative composites." In 1st International Electronic Conference on Applied Sciences. Basel, Switzerland: MDPI, 2020. http://dx.doi.org/10.3390/asec2020-07759.

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Pratap, Bhanu, Meetu Nag, Ramkumar Yadav, Sultan Althahban, and John Chuol Wal. "Dynamic mechanical analysis of zinc oxide and hydroxyapatite particulate filled dental restorative composite materials." In RECENT ADVANCES IN SCIENCES, ENGINEERING, INFORMATION TECHNOLOGY & MANAGEMENT. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0154476.

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