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Nowicki A, Osypko K, Kurzawa A, Roszak M, Krawiec K, Pyka D. Mechanical and Material Analysis of 3D-Printed Temporary Materials for Implant Reconstructions-A Pilot Study. Biomedicines 2024; 12:870. [PMID: 38672224 PMCID: PMC11048395 DOI: 10.3390/biomedicines12040870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
In this study, the authors analyzed modern resin materials typically used for temporary reconstructions on implants and manufactured via 3D printing. Three broadly used resins: NextDent Denture 3D, NextDent C&B MFH Bleach, and Graphy TC-80DP were selected for analysis and compared to currently used acrylic materials and ABS-like resin. In order to achieve this, mechanical tests were conducted, starting with the static tensile test PN-EN. After the mechanical tests, analysis of the chemical composition was performed and images of the SEM microstructure were taken. Moreover, numerical simulations were conducted to create numerical models of materials and compare the accuracy with the tensile test. The parameters obtained in the computational environment enabled more than 98% correspondence between numerical and experimental charts, which constitutes an important step towards the further development of numeric methods in dentistry and prosthodontics.
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Affiliation(s)
- Adam Nowicki
- Diamante Dental Clinic, ul. Sportowa 48A/C, 59-300 Lubin, Poland;
| | - Karolina Osypko
- Dental Salon, Oral Surgery Academy, ul. E. Horbaczewskiego 53A, 54-130 Wroclaw, Poland
| | - Adam Kurzawa
- Department of Lightweight Elements Engineering, Foundry and Automation, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland;
| | - Maciej Roszak
- Department of Mechanics, Materials Science and Biomedical Engineering, Wrocław University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.R.); (K.K.); (D.P.)
| | - Karina Krawiec
- Department of Mechanics, Materials Science and Biomedical Engineering, Wrocław University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.R.); (K.K.); (D.P.)
| | - Dariusz Pyka
- Department of Mechanics, Materials Science and Biomedical Engineering, Wrocław University of Science and Technology, Smoluchowskiego 25, 50-370 Wroclaw, Poland; (M.R.); (K.K.); (D.P.)
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2
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Jain N, Dutt U, Radenkov I, Jain S. WHO's global oral health status report 2022: Actions, discussion and implementation. Oral Dis 2024; 30:73-79. [PMID: 36680388 DOI: 10.1111/odi.14516] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/05/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Affiliation(s)
- Nityanand Jain
- Faculty of Medicine, Riga Stradinš University, Riga, Latvia
| | - Upasna Dutt
- Department of Public Health, Turpanjian College of Health Sciences, American University of Armenia, Yerevan, Armenia
| | - Igor Radenkov
- Faculty of Medicine, Ss. Cyril and Methodius University, Skopje, North Macedonia
| | - Shivani Jain
- Department of Oral and Maxillofacial Surgery, Genesis Institute of Dental Sciences & Research, Ferozepur, India
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3
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Seredin P, Goloshchapov D, Kashkarov V, Emelyanova A, Buylov N, Ippolitov Y, Prutskij T. Development of a Visualisation Approach for Analysing Incipient and Clinically Unrecorded Enamel Fissure Caries Using Laser-Induced Contrast Imaging, MicroRaman Spectroscopy and Biomimetic Composites: A Pilot Study. J Imaging 2022; 8:jimaging8050137. [PMID: 35621901 PMCID: PMC9142888 DOI: 10.3390/jimaging8050137] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/07/2022] [Accepted: 05/09/2022] [Indexed: 02/06/2023] Open
Abstract
This pilot study presents a practical approach to detecting and visualising the initial forms of caries that are not clinically registered. The use of a laser-induced contrast visualisation (LICV) technique was shown to provide detection of the originating caries based on the separation of emissions from sound tissue, areas with destroyed tissue and regions of bacterial invasion. Adding microRaman spectroscopy to the measuring system enables reliable detection of the transformation of the organic–mineral component in the dental tissue and the spread of bacterial microflora in the affected region. Further laboratory and clinical studies of the comprehensive use of LICV and microRaman spectroscopy enable data extension on the application of this approach for accurate determination of the boundaries in the changed dental tissue as a result of initial caries. The obtained data has the potential to develop an effective preventive medical diagnostic approach and as a result, further personalised medical treatment can be specified.
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Affiliation(s)
- Pavel Seredin
- Solid State Physics and Nanostructures Department, Voronezh State University, University Sq.1, 394018 Voronezh, Russia; (D.G.); (V.K.); (A.E.); (N.B.)
- Scientific and Educational Center, Nanomaterials and Nanotechnologies, Ural Federal University, Mir Av., 620002 Yekaterinburg, Russia
- Correspondence:
| | - Dmitry Goloshchapov
- Solid State Physics and Nanostructures Department, Voronezh State University, University Sq.1, 394018 Voronezh, Russia; (D.G.); (V.K.); (A.E.); (N.B.)
| | - Vladimir Kashkarov
- Solid State Physics and Nanostructures Department, Voronezh State University, University Sq.1, 394018 Voronezh, Russia; (D.G.); (V.K.); (A.E.); (N.B.)
| | - Anna Emelyanova
- Solid State Physics and Nanostructures Department, Voronezh State University, University Sq.1, 394018 Voronezh, Russia; (D.G.); (V.K.); (A.E.); (N.B.)
| | - Nikita Buylov
- Solid State Physics and Nanostructures Department, Voronezh State University, University Sq.1, 394018 Voronezh, Russia; (D.G.); (V.K.); (A.E.); (N.B.)
| | - Yuri Ippolitov
- Department of Pediatric Dentistry with Orthodontia, Voronezh State Medical University, Studentcheskaya St. 11, 394006 Voronezh, Russia;
| | - Tatiana Prutskij
- Sciences Institute, Autonomous University of Puebla (BUAP), Puebla 72570, Mexico;
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Virtual Approach to the Comparative Analysis of Biomaterials Used in Endodontic Treatment. Processes (Basel) 2021. [DOI: 10.3390/pr9060926] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The importance of endodontics is presented within our own concept of Dentistry Sustainable Development (DSD) consisting of three inseparable elements; i.e., Advanced Interventionist Dentistry 4.0 (AID 4.0), Global Dental Prevention (GDP), and the Dentistry Safety System (DSS) as a polemic, with the hypothesis of the need to abandon interventionist dentistry in favour of the domination of dental prevention. In view of the numerous systemic complications of caries that affect 3−5 billion people globally, endodontic treatment effectively counteracts them. Regardless of this, the prevention of oral diseases should be developed very widely, and in many countries dental care should reach the poorest sections of society. The materials and methods of clinical management in endodontic procedures are characterized. The progress in the field of filling materials and techniques for the development and obturation of root canals is presented. The endodontics market is forecast to reach USD 2.1 billion in 2026, with a CAGR of 4.1%. The most widely used and recognized material for filling root canals is gutta-percha, recognized as the “gold standard”. An alternative is a synthetic thermoplastic filler material based on polyester materials, known mainly under the trade name Resilon. There are still sceptical opinions about the need to replace gutta-percha with this synthetic material, and many dentists still believe that this material cannot compete with gutta-percha. The results of studies carried out so far do not allow for the formulation of a substantively and ethically unambiguous view that gutta-percha should be replaced with another material. There is still insufficient clinical evidence to formulate firm opinions in this regard. In essence, materials and technologies used in endodontics do not differ from other groups of materials, which justifies using material engineering methodology for their research. Therefore, a detailed methodological approach is presented to objectify the assessment of endodontic treatment. Theoretical analysis was carried out using the methods of procedural benchmarking and comparative analysis with the use of contextual matrices to virtually optimize the selection of materials, techniques for the development and obturation of root canals, and methods for assessing the effectiveness of filling, which methods are usually used, e.g., in management science, and especially in foresight research as part of knowledge management. The results of these analyses are presented in the form of appropriate context matrices. The full usefulness of the research on the effectiveness and tightness of root canal filling using scanning electron microscopy is indicated. The analysis results are a practical application of the so-called “digital twins” approach concerning the virtual comparative analysis of biomaterials used in endodontic treatment.
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Abstract
This paper concerns the assessment of the current state of dentistry in the world and the prospects of its sustainable development. A traditional Chinese censer was adopted as the pattern, with a strong and stable support on three legs. The dominant diseases of the oral cavity are caries and periodontal diseases, with the inevitable consequence of toothlessness. From the caries 3.5–5 billion people suffer. Moreover, each of these diseases has a wide influence on the development of systemic complications. The territorial range of these diseases and their significant differentiation in severity in different countries and their impact on disability-adjusted life years index are presented (DALY). Edentulousness has a significant impact on the oral health-related quality of life (OHRQoL). The etiology of these diseases is presented, as well as the preventive and therapeutic strategies undertaken as a result of modifying the Deming circle through the fives’ rules idea. The state of development of Dentistry 4.0 is an element of the current stage of the industrial revolution Industry 4.0 and the great achievements of modern dental engineering. Dental treatment examples from the authors’ own clinical practice are given. The systemic safety of a huge number of dentists in the world is discussed, in place of the passive strategy of using more and more advanced personal protective equipment (PPE), introducing our own strategy for the active prevention of the spread of pathogenic microorganisms, including SARS-CoV-2. The ethical aspects of dentists’ activity towards their own patients and the ethical obligations of the dentist community towards society are discussed in detail. This paper is a polemic arguing against the view presented by a group of eminent specialists in the middle of last year in The Lancet. It is impossible to disagree with these views when it comes to waiting for egalitarianism in dental care, increasing the scope of prevention and eliminating discrimination in this area on the basis of scarcity and poverty. The views on the discrimination of dentistry in relation to other branches of medicine are far more debatable. Therefore, relevant world statistics for other branches of medicine are presented. The authors of this paper do not agree with the thesis that interventional dental treatment can be replaced with properly implemented prophylaxis. The final remarks, therefore, present a discussion of the prospects for the development of dentistry based on three pillars, analogous to the traditional Chinese censer obtaining a stable balance thanks to its three legs. The Dentistry Sustainable Development (DSD) > 2020 model, consisting of Global Dental Prevention (GDP), Advanced Interventionist Dentistry 4.0 (AID 4.0), and Dentistry Safety System (DSS), is presented.
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Affiliation(s)
- Nairn H F Wilson
- Chair, Board of Trustees, College of General Dentistry.,Dean, Faculty of General Dental Practice (UK) and Trustee, College of General Dentistry
| | - Ian J Mills
- Dean, Faculty of General Dental Practice (UK) and Trustee, College of General Dentistry
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7
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Markovic D, Soldatovic I, Vukovic R, Peric T, Campus GG, Vukovic A. How Much Country Economy Influences ECC Profile in Serbian Children-A Macro-Level Factor Analysis. Front Public Health 2019; 7:285. [PMID: 31681721 PMCID: PMC6798075 DOI: 10.3389/fpubh.2019.00285] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 09/19/2019] [Indexed: 11/26/2022] Open
Abstract
Introduction: Serbia has universal health coverage (UHC) for pediatric dental care and similar country distribution for dentists and physicians per 1,000 inhabitants. However, a high prevalence of early childhood caries (ECC) with wide variation across the country was observed in previous studies. This paper aimed to analyze the association between economic and healthcare country macro-level factors with ECC prevalence and treatment. Method: The outcome variables were ECC prevalence and frequency of untreated ECC in 36- to 71-month-olds. Cross-sectional pathfinder survey on a nationally representative sample of children was conducted in order to obtain data. Independent variables included the following: gross domestic product (GDP), social and health care budget beneficiaries' expenditures, local self-government budget, unemployment rate, population density and density of physicians and dentists. Guided by the WHO's Basic Methods for Oral Health Surveys stratified cluster sample, 17 sites were randomly chosen to obtain adequate distribution of data regarding urban, peri-urban and rural areas in each analyzed statistical territorial unit. The variables were analyzed using the independent t-test or Mann-Whitney U test. A probability value of <0.05 was considered significant. Results: The final sample included 864 children aged 36 to 71 months. Observed prevalence of ECC was 41.1%. Although no statistically significant difference was found, children with ECC compared to healthy children were living in parts of the country with averages of ≈122€ lower GDP per capita, ≈4€ lower social and health care expenditures per capita, 9 inhabitants per km2 lower population density, almost 7€ per capita lower local self-government budget and a 0.6% higher unemployment rate. Furthermore, although without a statistically significant difference, untreated ECC was associated with ≈302€ lower GDP per capita, ≈12€ lower social and health care expenditures per capita, 34 inhabitants per km2 lower population density, almost 20€ per capita lower local self-government budget and a 1.7% higher unemployment rate. Conclusions: This study, performed in a nationally representative sample of preschool children, revealed the association of economic macro-level factors with ECC prevalence and its (non-) treatment. Further research on a larger sample is necessary to confirm the results. These findings suggest that most of the public-health efforts regarding prevention and early treatment of ECC should be directed at regions with lower economic performance.
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Affiliation(s)
- Dejan Markovic
- Department of Pediatric and Preventive Dentistry, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivan Soldatovic
- Department of Statistics and Bioinformatics, School of Medicine, University of Belgrade, Belgrade, Serbia
| | - Rade Vukovic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Mother and Child Healthcare Institute of Serbia Dr Vukan Cupic, Belgrade, Serbia
| | - Tamara Peric
- Department of Pediatric and Preventive Dentistry, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | | | - Ana Vukovic
- Department of Pediatric and Preventive Dentistry, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
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8
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Watt RG, Daly B, Allison P, Macpherson LMD, Venturelli R, Listl S, Weyant RJ, Mathur MR, Guarnizo-Herreño CC, Celeste RK, Peres MA, Kearns C, Benzian H. Ending the neglect of global oral health: time for radical action. Lancet 2019; 394:261-272. [PMID: 31327370 DOI: 10.1016/s0140-6736(19)31133-x] [Citation(s) in RCA: 394] [Impact Index Per Article: 78.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/15/2019] [Accepted: 04/26/2019] [Indexed: 12/13/2022]
Abstract
Oral diseases are a major global public health problem affecting over 3·5 billion people. However, dentistry has so far been unable to tackle this problem. A fundamentally different approach is now needed. In this second of two papers in a Series on oral health, we present a critique of dentistry, highlighting its key limitations and the urgent need for system reform. In high-income countries, the current treatment-dominated, increasingly high-technology, interventionist, and specialised approach is not tackling the underlying causes of disease and is not addressing inequalities in oral health. In low-income and middle-income countries (LMICs), the limitations of so-called westernised dentistry are at their most acute; dentistry is often unavailable, unaffordable, and inappropriate for the majority of these populations, but particularly the rural poor. Rather than being isolated and separated from the mainstream health-care system, dentistry needs to be more integrated, in particular with primary care services. The global drive for universal health coverage provides an ideal opportunity for this integration. Dental care systems should focus more on promoting and maintaining oral health and achieving greater oral health equity. Sugar, alcohol, and tobacco consumption, and their underlying social and commercial determinants, are common risk factors shared with a range of other non-communicable diseases (NCDs). Coherent and comprehensive regulation and legislation are needed to tackle these shared risk factors. In this Series paper, we focus on the need to reduce sugar consumption and describe how this can be achieved through the adoption of a range of upstream policies designed to combat the corporate strategies used by the global sugar industry to promote sugar consumption and profits. At present, the sugar industry is influencing dental research, oral health policy, and professional organisations through its well developed corporate strategies. The development of clearer and more transparent conflict of interest policies and procedures to limit and clarify the influence of the sugar industry on research, policy, and practice is needed. Combating the commercial determinants of oral diseases and other NCDs should be a major policy priority.
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Affiliation(s)
- Richard G Watt
- WHO Collaborating Centre in Oral Health Inequalities and Public Health, Department of Epidemiology and Public Health, University College London, London, UK.
| | - Blánaid Daly
- Division of Child and Public Dental Health, Dublin Dental University Hospital, Trinity College Dublin, University of Dublin, Dublin, Ireland
| | - Paul Allison
- Faculty of Dentistry, McGill University, Montreal, QC, Canada
| | - Lorna M D Macpherson
- Department of Dental Public Health, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Renato Venturelli
- WHO Collaborating Centre in Oral Health Inequalities and Public Health, Department of Epidemiology and Public Health, University College London, London, UK
| | - Stefan Listl
- Quality and Safety of Oral Healthcare, Department of Dentistry, Radboud University Medical Center, Radboud University, Nijmegen, Netherlands; Section for Translational Health Economics, Medical Faculty, Heidelberg University, Heidelberg, Germany
| | - Robert J Weyant
- Department of Dental Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Carol C Guarnizo-Herreño
- Departamento de Salud Colectiva, Facultad de Odontología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Roger Keller Celeste
- Department of Preventive and Social Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Marco A Peres
- Menzies Health Institute Queensland and School of Dentistry and Oral Health, Griffith University, Gold Coast, QLD, Australia
| | - Cristin Kearns
- Department of Preventive and Restorative Dental Sciences and Philip R Lee Institute for Health Policy Studies, University of California San Francisco, San Francisco, CA, USA
| | - Habib Benzian
- WHO Collaborating Centre for Quality-Improvement, Evidence-Based Dentistry, Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY, USA; New York University College of Global Public Health, New York, NY, USA
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9
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Baâdoudi F, Maskrey N, Listl S, van der Heijden GJMG, Duijster D. Improving oral healthcare: towards measurement? Br Dent J 2018; 221:547-548. [PMID: 27811893 DOI: 10.1038/sj.bdj.2016.813] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2016] [Indexed: 11/09/2022]
Abstract
In the last 30 years oral healthcare is increasingly being contested. Needs and expectations have evolved to a point of advanced restorative techniques, long term planning for preventative care and evidence-based practice, and patients and payers increasingly require more explicit demonstration of competence. However, relevant data are currently not routinely collected that would support approaches needed to further improve oral health and care. This paper sets out the case to collect and evaluate routinely available data. Variations in care and oral health could be described, which in turn would provide valuable insights for all wishing to further improve oral health and care.
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Affiliation(s)
- F Baâdoudi
- Department of Social Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Gustav Mahlerlaan 3,004, 1081LA Amsterdam, The Netherlands
| | - N Maskrey
- Department of Social Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Gustav Mahlerlaan 3,004, 1081LA Amsterdam, The Netherlands.,School of Pharmacy, Keele University, Newcastle under Lyme, Staffordshire ST5 5BG, United Kingdom
| | - S Listl
- Department of Conservative Dentistry, Translational Health Economics Group, Heidelberg University, Im Neuenheimer Feld 400, 69,120 Heidelberg, Germany.,Department of Quality and Safety of Oral Health Care, Radboud University Nijmegen, 6525GD Nijmegen, The Netherlands
| | - G J M G van der Heijden
- Department of Social Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Gustav Mahlerlaan 3,004, 1081LA Amsterdam, The Netherlands
| | - D Duijster
- Department of Social Dentistry, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University, Gustav Mahlerlaan 3,004, 1081LA Amsterdam, The Netherlands
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10
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Younis LT, Abu Hassan MI, Taiyeb Ali TB, Bustami TJ. 3D TECA hydrogel reduces cellular senescence and enhances fibroblasts migration in wound healing. Asian J Pharm Sci 2017; 13:317-325. [PMID: 32104405 PMCID: PMC7032142 DOI: 10.1016/j.ajps.2017.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/08/2017] [Accepted: 12/04/2017] [Indexed: 12/11/2022] Open
Abstract
This study was designed to investigate the effect of 3D TECA hydrogel on the inflammatory-induced senescence marker, and to assess the influence of the gel on the periodontal ligament fibroblasts (PDLFs) migration in wound healing in vitro. PDLFs were cultured with 20 ng/ml TNF-α to induce inflammation in the presence and absence of 50 µM 3D TECA gel for 14 d. The gel effect on the senescence maker secretory associated-β-galactosidase (SA-β-gal) activity was measured by a histochemical staining. Chromatin condensation and DNA synthesis of the cells were assessed by 4′,6-diamidino-2-phenylindole and 5-ethynyl-2′-deoxyuridine fluorescent staining respectively. For evaluating fibroblasts migration, scratch wound healing assay and Pro-Plus Imaging software were used. The activity of senescence marker, SA-β-gal, was positive in the samples with TNF-α-induced inflammation. SA-β-gal percentage is suppressed (>65%, P < 0.05) in the treated cells with TECA gel as compared to the non-treated cells. Chromatin foci were obvious in the non-treated samples. DNA synthesis was markedly recognized by the fluorescent staining in the treated compared to non-treated cultures. Scratch wound test indicated that the cells migration rate was significantly higher (14.9 µm2/h, P < 0.05) in the treated versus (11 µm2/h) for control PDLFs. The new formula of 3D TECA suppresses the inflammatory-mediated cellular senescence and enhanced fibroblasts proliferation and migration. Therefore, 3D TECA may be used as an adjunct to accelerate repair and healing of periodontal tissues.
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Affiliation(s)
- Luay Thanoon Younis
- Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh 47000, Malaysia
| | | | - Tara Bai Taiyeb Ali
- Faculty of Dentistry, Universiti Teknologi MARA, MAHSA University, Jenjarom 42610, Malaysia
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11
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Guven Y. Scientific basis of dentistry. J Istanb Univ Fac Dent 2017; 51:64-71. [PMID: 29114433 PMCID: PMC5624148 DOI: 10.17096/jiufd.04646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 09/19/2017] [Indexed: 01/26/2023] Open
Abstract
Technological and scientific innovations have increased exponentially over the past years in the dentistry profession. In this article, these developments are
evaluated both in terms of clinical practice and their place in the educational program. The effect of the biologic and digital revolutions on dental education and
daily clinical practice are also reviewed. Biomimetics, personalized dental medicine regenerative dentistry, nanotechnology, high-end simulations providing virtual
reality, genomic information, and stem cell studies will gain more importance in the coming years, moving dentistry to a different dimension.
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Affiliation(s)
- Yegane Guven
- Department of Basic Medical Science, Faculty of Dentistry, Istanbul University Turkey
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12
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van de Sande FH, Collares K, Correa MB, Cenci MS, Demarco FF, Opdam N. Restoration Survival: Revisiting Patients' Risk Factors Through a Systematic Literature Review. Oper Dent 2016; 41:S7-S26. [PMID: 27689931 DOI: 10.2341/15-120-lit] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A literature review was conducted to investigate the influence of patient-related factors on restoration survival in posterior permanent teeth as well as to report the methods used to collect these factors. The selection of articles on longitudinal clinical studies investigating the survival of posterior restorations (except full crowns and temporary fillings) and including patient-related factors was performed by applying predefined criteria. The review was organized into two parts, the first describing how patient factors were assessed in the studies (n=45) and the second presenting the statistical significance (n=27) and size of the effect (n=11) of these factors on restoration survival. Patient-related factors mentioned in the studies included age; gender; caries risk; caries activity/severity; decayed, missing, filled teeth; number of restorations; oral hygiene; and bruxism, among others. Sixteen studies included the patient age or age range in the analysis, which was found to be significant in 47% of the studies. Regarding gender, four of 17 reports found a significant effect on survival, showing more failures for men in three studies. The caries risk profile or related variables were included in the analysis of 15 studies, and a significant effect on survival was reported for high-caries-risk individuals (or related variables) in 67% of these studies. Bruxism was also found to influence restoration survival in three of six studies where this variable was investigated. Some issues were found regarding the reporting of methods used to classify patients according to risk and were thoroughly discussed. In view of the information gathered in this review, the assessment of patient factors along with other variables should become part of clinical studies investigating restoration survival, since several of these factors were shown to influence the failure of restorations, regardless of the material type.
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13
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Alao AR, Stoll R, Song XF, Miyazaki T, Hotta Y, Shibata Y, Yin L. Surface quality of yttria-stabilized tetragonal zirconia polycrystal in CAD/CAM milling, sintering, polishing and sandblasting processes. J Mech Behav Biomed Mater 2016; 65:102-116. [PMID: 27569758 DOI: 10.1016/j.jmbbm.2016.08.021] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/11/2016] [Accepted: 08/13/2016] [Indexed: 02/04/2023]
Abstract
This paper studied the surface quality (damage, morphology, and phase transformation) of yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) in CAD/CAM milling, and subsequent polishing, sintering and sandblasting processes applied in dental restorations. X-ray diffraction and scanning electron microscopy (SEM) were used to scan all processed surfaces to determine phase transformations and analyse surface damage morphology, respectively. The average surface roughness (Ra) and maximum roughness (Rz) for all processed surfaces were measured using desk-top SEM-assisted morphology analytical software. X-ray diffraction patterns prove the sintering-induced monoclinic-tetragonal phase transformation while the sandblasting-induced phase transformation was not detected. The CAD/CAM milling of pre-sintered Y-TZP produced very rough surfaces with extensive fractures and cracks. Simply polishing or sintering of milled pre-sintered surfaces did not significantly improve their surface roughness (ANOVA, p>0.05). Neither sintering-polishing of the milled surfaces could effectively improve the surface roughness (ANOVA, p>0.05). The best surface morphology was produced in the milling-polishing-sintering process, achieving Ra=0.21±0.03µm and Rz=1.73±0.04µm, which meets the threshold for bacterial retention. Sandblasting of intaglios with smaller abrasives was recommended as larger abrasive produced visible surface defects. This study provides technical insights into process selection for Y-TZP to achieve the improved restorative quality.
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Affiliation(s)
- Abdur-Rasheed Alao
- Mechanical Engineering, College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Richard Stoll
- Restorative Dentistry, College of Medicine and Dentistry, James Cook University, Cairns, QLD 4870, Australia
| | - Xiao-Fei Song
- Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
| | - Takashi Miyazaki
- Division of Biomaterials and Engineering, Department of Conservative Dentistry, Showa University School of Dentistry, Tokyo 142-8555, Japan
| | - Yasuhiro Hotta
- Division of Biomaterials and Engineering, Department of Conservative Dentistry, Showa University School of Dentistry, Tokyo 142-8555, Japan
| | - Yo Shibata
- Division of Biomaterials and Engineering, Department of Conservative Dentistry, Showa University School of Dentistry, Tokyo 142-8555, Japan
| | - Ling Yin
- Mechanical Engineering, College of Science & Engineering, James Cook University, Townsville, QLD 4811, Australia.
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Brennan DS, Balasubramanian M, Spencer AJ. Preventive services in Australia by patient and visit characteristics. Int Dent J 2016; 66:344-349. [PMID: 27292715 DOI: 10.1111/idj.12246] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVES Growth in rates of preventive services has been linked to trends in retention of teeth and the emergence of minimal intervention approaches. In this study, we examined associations between patient-level characteristics and rates of the preventive services dental/prophylaxis and application of remineralisation agents. METHODS A random sample of dentists in Australia was posted a self-administered questionnaire in 2009-2010. A service log was used to collect data on preventive services and patient characteristics. RESULTS Responses were obtained from 1,148 dentists (response rate = 67%). Preventive service rate models, adjusted according to the age and gender of patients, indicated that insured patients had higher rates of prophylaxis [rate ratio (RR) = 1.39; 95% confidence interval (95% CI): 1.21-1.59) and remineralisation services (RR = 1.85; 95% CI: 1.46-2.33), and that emergency visits had lower rates for prophylaxis (RR = 0.26; 95% CI: 0.20-0.35) and remineralisation services (RR = 0.23; 95% CI: 0.14-0.38). Those who had 20 teeth or more demonstrated higher rates of prophylaxis (RR = 1.41; 95% CI: 1.13-1.75) and remineralisation services (RR = 1.45; 95% CI: 1.02-2.08). Those with decayed teeth had lower rates of prophylaxis (RR = 0.54; 95% CI: 0.46-0.63) and remineralisation services (RR = 0.66; 95% CI: 0.53-0.82). CONCLUSIONS Preventive services were associated with patient age, characteristics of visits and oral health. Patients who were worse off, in terms of attending an emergency visit for the relief of pain and having decayed teeth, had lower rates of preventive care. The findings indicate that patients most in need are missing out on the benefits of preventive dental services.
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Affiliation(s)
- David S Brennan
- Australian Research Centre for Population Oral Health, School of Dentistry, University of Adelaide, Adelaide, South Australia, Australia
| | - Madhan Balasubramanian
- Australian Research Centre for Population Oral Health, School of Dentistry, University of Adelaide, Adelaide, South Australia, Australia
| | - A John Spencer
- Australian Research Centre for Population Oral Health, School of Dentistry, University of Adelaide, Adelaide, South Australia, Australia
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15
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Jakovljevic M, Kanjevac TV, Lazarevic M, Vladimir RB. Long Term Dental Work Force Build-Up and DMFT-12 Improvement in the European Region. Front Physiol 2016; 7:48. [PMID: 26941648 PMCID: PMC4763169 DOI: 10.3389/fphys.2016.00048] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 02/02/2016] [Indexed: 11/13/2022] Open
Affiliation(s)
- Mihajlo Jakovljevic
- Head of Health Economics and Pharmacoeconomics, The Faculty of Medical Sciences, University of KragujevacKragujevac, Serbia
| | - Tatjana V. Kanjevac
- Vice Dean for Integrated Academic Studies of Dentistry, The Faculty of Medical Sciences, University of KragujevacKragujevac, Serbia
| | - Marija Lazarevic
- The Faculty of Medical Sciences, University of KragujevacKragujevac, Serbia
| | - Ristic B. Vladimir
- Department for Orthodontics, The Faculty of Dentistry, University of BelgradeBelgrade, Serbia
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16
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Abstract
WHO data suggest that all over the world the prevalence of caries has declined at the end of the previous and in the first decade of the present century. This decline started wherever the use of effective fluoride toothpaste became commonplace. Even though the decline is considerable with a 90 % reduction in DMFT for 12-year-olds in Western Europe and the USA, caries still affects 60-90 % of the children throughout the world. In the high- and middle-income countries, the nature of caries has changed from a rapid progressing disease of childhood to a slowly progressing disease throughout adulthood and even old age. However, throughout the world, the circumstances for caries differ, e.g., low-income countries experience more caries with higher sugar consumption, while between high-income countries this correlation is reversed. In high-income countries, fluoride is widely used and preventive programs in dental offices are in place. These programs, if effective, may not be a realistic option in low-income countries. In order to reduce caries in the world even further, the use of effective and affordable fluoride toothpaste should be encouraged and enabled.
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Affiliation(s)
- M. D. Lagerweij
- Department of Cariology Endodontology Pedodontology, ACTA, Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands
| | - C. van Loveren
- Department of Cariology Endodontology Pedodontology, ACTA, Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands
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