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https://www.readbyqxmd.com/read/29744496/a-review-of-nanostructured-surfaces-and-materials-for-dental-implants-surface-coating-patterning-and-functionalization-for-improved-performance
#1
REVIEW
Rahimeh Rasouli, Ahmed Barhoum, Hasan Uludag
The emerging field of nanostructured implants has enormous scope in the areas of medical science and dental implants. Surface nanofeatures provide significant potential solutions to medical problems by the introduction of better biomaterials, improved implant design, and surface engineering techniques such as coating, patterning, functionalization and molecular grafting at the nanoscale. This review is of an interdisciplinary nature, addressing the history and development of dental implants and the emerging area of nanotechnology in dental implants...
May 10, 2018: Biomaterials Science
https://www.readbyqxmd.com/read/29728548/qualitative-assessment-of-reliability-of-cone-beam-computed-tomography-in-evaluating-bone-density-at-posterior-mandibular-implant-site
#2
Kirti Dahiya, Narendra Kumar, Pankaj Bajaj, Avdesh Sharma, Rohan Sikka, Sagar Dahiya
Introduction: The success of dental implants depends primarily on the primary implant stability and the bone density so that predictable osseointegration can be achieved. To achieve the desired results, systematic preoperative planning for implant placement is required. The sole aim of the study was to assess the reliability of preoperative bone density of mandibular posterior region for implant placement using computerized tomography-derived bone densities in Hounsfield units (HU). Materials and methods: A total of 200 patients with 352 implant sites between 2014 and 2017 were assessed for the posterior mandibular area using cone-beam computed tomography (CBCT)...
April 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29707613/an-overview-of-development-and-status-of-fiber-reinforced-composites-as-dental-and-medical-biomaterials
#3
REVIEW
Pekka K Vallittu
Fibr-reinforced composites (FRC) have been used successfully for decades in many fields of science and engineering applications. Benefits of FRCs relate to physical properties of FRCs and versatile production methods, which can be utilized. Conventional hand lamination of prefabricated FRC prepregs is utilized still most commonly in fabrication of dental FRC devices but CAD-CAM systems are to be come for use in certain production steps of dental constructions and medical FRC implants. Although metals, ceramics and particulate filler resin composites have successfully been used as dental and medical biomaterials for decades, devices made out of these materials do not meet all clinical requirements...
2018: Acta Biomaterialia Odontologica Scandinavica
https://www.readbyqxmd.com/read/29684777/random-spectrum-fatigue-performance-of-severely-plastically-deformed-titanium-for-implant-dentistry-applications
#4
D Rittel, K Shemtov-Yona, R Lapovok
Severe plastic deformation (SPD) has long been known to confer superior mechanical properties for many metals and alloys. In the general field of biomedical devices, and dental implants in particular, the superior strength of SPD-processed commercially pure (CP) titanium, that may surpass that of the stronger Ti6Al4V alloy, has been associated with a superior fatigue resistance. Such a property would make those materials both biocompatible and strong alternatives to the currently used titanium alloy. However, the fatigue characterization reported so far in the literature relies on a very small sample size, thereby precluding any meaningful statistical analysis...
April 14, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29495925/in-vivo-periodontium-formation-around-titanium-implants-using-periodontal-ligament-cell-sheet
#5
Kaoru Washio, Yusuke Tsutsumi, Yuka Tsumanuma, Kosei Yano, Supreda Suphanantachat Srithanyarat, Ryo Takagi, Shizuko Ichinose, Walter Meinzer, Masayuki Yamato, Teruo Okano, Takao Hanawa, Isao Ishikawa
Osseointegrated implants have been recognized as being very reliable and having long-term predictability. However, host defense mechanisms against infection have been known to be impaired around a dental implant because of the lack of a periodontal ligament (PDL). The purpose of our experimental design was to produce cementum and PDL on the implant surface adopting cell sheet technology. To this aim we used PDL-derived cells, which contain multipotential stem cells, as the cell source and we cultured them on an implant material constituted of commercially pure titanium treated with acid etching, blasting, and a calcium phosphate (CaP) coating to improve cell attachment...
April 10, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29281613/clinical-evaluation-of-complications-in-implant-supported-dentures-a-4-year-retrospective-study
#6
Sabiha Zelal Ülkü, Filiz Acun Kaya, Ersin Uysal, Belgin Gulsun
BACKGROUND Implants that can be used in the prosthetic rehabilitation of full and partial edentulous patients are now frequently used due to advances in dentistry. Despite advanced methods of applications, failures and complications can still be seen. The aim of our study was to evaluate clinical prosthetic values and complications that occurred during 4-year follow-up in implant-supported restorations. MATERIAL AND METHODS This retrospective study included 40 patients who received oral rehabilitation with an implant-supported prosthesis...
December 27, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29275563/-understanding-new-progress-in-prosthodontics-from-the-perspective-of-updates-in-the-glossary-of-prosthodontic-terms
#7
T Jiang
Glossary of Prosthodontic Terms is a standardized vocabulary with international influence. Its ninth edition was published in J Prosthet Dent in 2017, 12 years after the last edition. During this period, great development has taken place in the dental prosthetics due to dental implant and digital dentistry as well as application of new materials and technologies. The research results of dental adhesion, aesthetic dentistry, orofacial function, and tissue regeneration has been fully applied in dental clinic...
December 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29216024/maxillary-cortical-bone-thickness-in-a-south-eastern-anatolian-population-a-cone-beam-computed-tomography-study
#8
Ozkan Adiguzel, Ceren Aktuna Belgin, Seda Falakaloglu, Suzan Cangul, Zeki Akkus
BACKGROUND The aim of this study was to measure the distance between the maxillary premolar and molar teeth apices to the buccal cortical bone and evaluate differences in gender and age group, using cone beam computed tomography (CBCT). MATERIAL AND METHODS This retrospective study comprised of 451 premolar and molar teeth of one hundred and thirteen patients who were admitted to Dicle University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology for different reasons. Data were analyzed using Student's t-tests and Tukey HSD tests...
December 7, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29204275/fractography-of-clinically-fractured-implant-supported-dental-computer-aided-design-and-computer-aided-manufacturing-crowns
#9
Ulrich Lohbauer, Renan Belli, Marco S Cune, Ulf Schepke
Today, a substantial part of the dental crown production uses computer-aided design and computer-aided manufacturing (CAD/CAM) technology. A recent step in restorative dentistry is the replacement of natural tooth structure with pre-polymerized and machined resin-based methacrylic polymers. Recently, a new CAD/CAM composite was launched for the crown indication in the load-bearing area, but the clinical reality forced the manufacturer to withdraw this specific indication. In parallel, a randomized clinical trial of CAD/CAM composite crowns luted on zirconia implant abutments revealed a high incidence of failure within the first year of service...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/29026646/binary-titanium-alloys-as-dental-implant-materials-a-review
#10
REVIEW
Xiaotian Liu, Shuyang Chen, James K H Tsoi, Jukka Pekka Matinlinna
Titanium (Ti) has been used for long in dentistry and medicine for implant purpose. During the years, not only the commercially pure Ti but also some alloys such as binary and tertiary Ti alloys were used. The aim of this review is to describe and compare the current literature on binary Ti alloys, including Ti-Zr, Ti-In, Ti-Ag, Ti-Cu, Ti-Au, Ti-Pd, Ti-Nb, Ti-Mn, Ti-Mo, Ti-Cr, Ti-Co, Ti-Sn, Ti-Ge and Ti-Ga, in particular to mechanical, chemical and biological parameters related to implant application. Literature was searched using the PubMed and Web of Science databases, as well as google without limiting the year, but with principle key terms such as ' Ti alloy', 'binary Ti ', 'Ti-X' (with X is the alloy element), 'dental implant' and 'medical implant'...
October 2017: Regenerative Biomaterials
https://www.readbyqxmd.com/read/28951037/nanoparticles-in-dentistry
#11
REVIEW
Gottfried Schmalz, Reinhard Hickel, Kirsten L van Landuyt, Franz-Xaver Reichl
OBJECTIVE: Nanoparticles having a size from 1 to 100nm are present in nature and are successfully used in many products of daily life. Nanoparticles are also embedded per se or as byproducts from milling processes of larger filler particles in many dental materials. METHODS AND RESULTS: Recently, possible adverse effects of nanoparticles have gained increased interest with the lungs being a main target organ. Exposure to nanoparticles in dentistry may occur in the dental laboratory, by processing gypsum type products or by grinding and polishing materials...
November 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28883677/comparison-of-results-of-measurement-of-dimensions-of-the-placed-dental-implants-on-cone-beam-computed-tomography-with-dimensions-of-the-producers-of-the-implants
#12
Merisa Repesa, Amela Sofic, Selma Jakupovic, Selma Tosum, Lejla Kazazic, Almir Dervisevic
INTRODUCTION: One of the most frequently used method for scanning patients with indication for dental implantation in dentistry is cone beam computed tomography. Implantation, CBCT imaging and implant programme are inevitable when planning a successful replacement of lost teeth. CBCT offers exact information about available bone and its density, adjacent tooth roots, the place of mandibular canal and maxillary sinus and adjacent anatomical structure. AIM: The goal of this study is to estimate accuracy of measurements on CBCT images ofpatients who have implants of different producers and determine if there is any statistically significant correlation between four test groups regardless of the alloy of which implants are made...
June 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28864790/a-survey-of-dental-implant-instruction-in-predoctoral-dental-curricula-in-north-america
#13
Hidemichi Kihara, Jie Sun, Maiko Sakai, Shigemi Nagai, John Da Silva
The aim of this study was to investigate the extent and forms of predoctoral implant dentistry instruction in North American dental schools and to identify future directions and challenges. The survey collected data on curriculum content, departmental oversight, techniques, and materials, as well as current problems to be solved. The 30-question survey was sent in 2012 to the dean or administrator in charge of the predoctoral curriculum of all 73 dental schools in the U.S. and Canada at the time; four reminders were sent...
September 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28852747/establishing-a-suitable-surface-roughness-for-lithium-disilicate-implant-abutments-under-laboratory-conditions-a-morphologic-sem-and-profilometric-pilot-study
#14
Gertrud Fabel, Florian Beuer
The increasing use of dental implants rather than fixed cantilever bridges for standard dental restorations has led to the development of multiple materials in this field. The goal in modern dentistry in recent years has been to achieve results in implantology that match the natural dentition in esthetics and function. Constant efforts have been made to achieve a perfect emergence profile, and to individualize the surrounding periimplant soft tissue. Powder-free digital scanning is now possible, which allows for the computer-assisted design/computer-assisted manufacturing (CAD/CAM) of ready-to-fit customized immediate implant abutments in various appropriate materials...
2017: International Journal of Computerized Dentistry
https://www.readbyqxmd.com/read/28840873/survey-of-consultants-in-restorative-dentistry-in-the-uk-regarding-ongoing-care-of-patients-provided-with-dental-implants
#15
H P Beddis, K A Durey, M F W Y Chan
Background Funding for implant-based treatment within secondary care is limited, and acceptance criteria are determined locally according to funding agreements with NHS England. Indefinite review of all patients in secondary care is unlikely to be feasible due to limitations on departmental capacity. The increasing number of patients provided with implant-based treatment in secondary care has resulted in a growing maintenance burden, raising the question of who should provide this care. Management of some complications within primary care would facilitate patients' access to treatment, although no specific provision for maintenance of implant-retained prostheses is made within the NHS Dental Charges Regulations...
August 25, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28802762/clinical-application-of-autogenous-partially-demineralized-dentin-matrix-prepared-immediately-after-extraction-for-alveolar-bone-regeneration-in-implant-dentistry-a-pilot-study
#16
T Minamizato, T Koga, Takashi I, Y Nakatani, M Umebayashi, Y Sumita, T Ikeda, I Asahina
The aim of this study was to examine the efficacy and safety of autogenous partially demineralized dentin matrix (APDDM) prepared onsite, for clinical application in bone regeneration procedures related to implant dentistry, including socket preservation, alveolar ridge augmentation, and maxillary sinus floor augmentation. In this study, 16 patients underwent dental implant placement using APDDM transplantation. There were no systemic or local complications (including surgical site infection) in any of the cases, and oral rehabilitation using dental implants was successful in all cases for at least 2 years after attachment of the suprastructure...
January 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28779891/silver-nanoparticles-in-dentistry
#17
REVIEW
Victor T Noronha, Amauri J Paula, Gabriela Durán, Andre Galembeck, Karina Cogo-Müller, Michelle Franz-Montan, Nelson Durán
OBJECTIVE: Silver nanoparticles (AgNPs) have been extensively studied for their antimicrobial properties, which provide an extensive applicability in dentistry. Because of this increasing interest in AgNPs, the objective of this paper was to review their use in nanocomposites; implant coatings; pre-formulation with antimicrobial activity against cariogenic pathogens, periodontal biofilm, fungal pathogens and endodontic bacteria; and other applications such as treatment of oral cancer and local anesthesia...
October 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28772697/calcium-phosphate-bioceramics-a-review-of-their-history-structure-properties-coating-technologies-and-biomedical-applications
#18
REVIEW
Noam Eliaz, Noah Metoki
Calcium phosphate (CaP) bioceramics are widely used in the field of bone regeneration, both in orthopedics and in dentistry, due to their good biocompatibility, osseointegration and osteoconduction. The aim of this article is to review the history, structure, properties and clinical applications of these materials, whether they are in the form of bone cements, paste, scaffolds, or coatings. Major analytical techniques for characterization of CaPs, in vitro and in vivo tests, and the requirements of the US Food and Drug Administration (FDA) and international standards from CaP coatings on orthopedic and dental endosseous implants, are also summarized, along with the possible effect of sterilization on these materials...
March 24, 2017: Materials
https://www.readbyqxmd.com/read/28711338/in-vitro-cytocompatibility-of-dental-resin-monomers-on-osteoblast-like-cells
#19
Dominik Kraus, Markus Wolfgarten, Norbert Enkling, Ernst-Heinrich Helfgen, Matthias Frentzen, Rainer Probstmeier, Jochen Winter, Helmut Stark
OBJECTIVES: Dental resin-based materials are widely used in modern dentistry. Especially, resin cements enjoy great popularity and are utilized in many applications. Nevertheless, monomers could be released from the resinous matrix, thus interact with surrounding tissues, cause adverse biological reactions and may lead in cases of implant retained restorations to peri-implant bone destruction. Hence, we performed an in-vitro study to determine cytotoxicity of resin monomers on osteoblast-like cells...
July 12, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28685563/allergic-contact-dermatitis-to-acrylates
#20
P Romita, C Foti, L Masciopinto, E Nettis, E Di Leo, G Calogiuri, D Bonamonte, G Angelini, G Dipalma, A Ballini, F Inchingolo
Acrylates and methacrylates are a large group of chemically reactive monomers that are polymerized into acrylic plastics. These have very broad applications in glues, coatings and various plastic materials. Allergic contact dermatitis (ACD) caused by acrylates can be occupational, mainly in dentistry workers during the manufacturing and implantation of dental prosthesis, and in nail technicians during the sculpturing and application of artificial nails. The clinical manifestations vary according to the location of the contact...
April 2017: Journal of Biological Regulators and Homeostatic Agents
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