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Dental implant surface

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https://www.readbyqxmd.com/read/28334058/benchmarking-outcomes-in-implant-prosthodontics-partial-fixed-dental-prostheses-and-crowns-supported-by-implants-with-a-turned-surface-over-10-to-28-years-at-the-university-of-toronto
#1
Asbjørn Jokstad, Anne M Gussgard, Joseph Fava, Mark Lin, Babak Shokati, Eszter Somogyi-Ganss, Brenton Winnett, Mohammed Zahran
PURPOSE: The aim of this noninterventional, retrospective study was to benchmark the outcomes of patients with partial fixed prostheses supported by implants treated at the University of Toronto at least 10 years earlier. A study protocol for assessing outcomes on like patients developed at the University of Bern, Switzerland, was followed. MATERIALS AND METHODS: All patients who had received at least one implant before 2002 were considered eligible to be included in the study (n = 298)...
March 23, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28327694/safety-and-efficacy-of-a-biomimetic-monolayer-of-permanently-bound-multiphosphonic-acid-molecules-on-dental-implants-3-years-post-loading-results-from-a-pilot-quadruple-blinded-randomised-controlled-trial
#2
Marco Esposito, Ivan Dojcinovic, Sabrina Buchini, Péter Péchy, Björn-Owe Aronsson
PURPOSE: To evaluate the safety and clinical efficacy of a novel surface treatment (SurfLink, Nano Bridging Molecules, Gland, Switzerland) on titanium dental implants. SurfLink consists of a monolayer of permanently bound multiphosphonic acid molecules, which mimics the surface of naturally occurring hydroxyapatite. MATERIALS AND METHODS: Twenty-three patients requiring at least two single dental implants had their sites randomised according to a split-mouth design to receive one titanium grade 4 implant treated with SurfLink and one untreated control implant...
2017: European Journal of Oral Implantology
https://www.readbyqxmd.com/read/28321876/effects-of-glucose-concentration-on-osteogenic-differentiation-of-type-ii-diabetes-mellitus-rat-bone-marrow-derived-mesenchymal-stromal-cells-on-a-nano-scale-modified-titanium
#3
I Yamawaki, Y Taguchi, S Komasa, A Tanaka, M Umeda
BACKGROUND AND OBJECTIVE: Diabetes mellitus (DM) is a common disease worldwide. Patients with DM have an increased risk of losing their teeth compared with other individuals. Dental implants are a standard of care for treating partial or full edentulism, and various implant surface treatments have recently been developed to increase dental implant stability. However, some studies have reported that DM reduces osseointegration and the success rate of dental implants. The purpose of this study was to determine the effects of high glucose levels for hard tissue formation on a nano-scale modified titanium surface...
March 21, 2017: Journal of Periodontal Research
https://www.readbyqxmd.com/read/28321800/wear-of-morse-taper-and-external-hexagon-implant-joints-after-abutment-removal
#4
Abraão M Prado, Jorge Pereira, Filipe S Silva, Bruno Henriques, Rubens M Nascimento, Cesar A M Benfatti, José López-López, Júlio C M Souza
The aim of this in vitro study was to evaluate the removal torque values on abutments and the morphological wear aspects of two different dental implant joints after immersion in a medium containing biofilm from human saliva. Twenty implant-abutment assemblies were divided into four groups in this study: (A) Morse taper free of medium containing biofilm, and (B) after contact with a medium containing biofilm from human saliva; (C) External Hexagon free of medium containing biofilm, and (D) after contact with medium containing biofilm from human saliva...
May 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28319206/bone-quality-and-quantity-and-dental-implant-failure-a-systematic-review-and-meta-analysis
#5
Bruno Ramos Chrcanovic, Tomas Albrektsson, Ann Wennerberg
PURPOSE: The aim of this study was to test the null hypothesis that there is no difference in implant failure rates, marginal bone loss, and postoperative infection for implants inserted in bone with different qualities and quantities according to the classification of Lekholm and Zarb. MATERIALS AND METHODS: An electronic search was undertaken in January 2015 for randomized and nonrandomized human clinical studies. RESULTS: A total of 94 publications were included...
March 20, 2017: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/28304212/influence-of-laser-microtextured-surface-collar-on-marginal-bone-loss-and-peri-implant-soft-tissue-response-a-systematic-review-and-meta-analysis
#6
Zhaozhao Chen, Yujiao Zhang, Junying Li, Hom-Lay Wang, Haiyang Yu
BACKGROUND: Laser-microtextured surface (LMS) dental implant collar appears to promote a more tooth-like gingival collagen fiber attachment, which may help to stabilize the peri-implant tissues. The purpose of this systematic review was to assess the clinical effect of LMS on crestal bone level and peri-implant soft tissue response, versus non-LMS collar. METHODS: Electronic and manual literature searches were performed by two independent reviewers for articles written in English up to December 2016...
March 17, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28301307/silicon-nitride-si3n4-implants-the-future-of-dental-implantology
#7
Zahi Badran, Xavier Struillou, Francis J Hughes, Assem Soueidan, Alain Hoornaert, Mark Ide
For decades titanium has been the preferred material for dental implant fabrication, with mechanical and biological performance resulting in high clinical success rates. Tshese have been further enhanced by incremental development of surface modifications aimed at improving speed and degree of osseointegration and resulting in enhanced clinical treatment options and outcomes. However, increasing demand for metal-free dental restorations has also led to the development of ceramic-based dental implants such as zirconia...
March 16, 2017: Journal of Oral Implantology
https://www.readbyqxmd.com/read/28299337/effect-of-zirconia-dental-implant-surfaces-on-bone-integration-a-systematic-review-and-meta-analysis
#8
REVIEW
Ali Hafezeqoran, Roodabeh Koodaryan
Background. The information available about osseointegration and the bone to implant interaction of zirconia implants with various surface modifications is still far from sufficient. Objective. The purpose of this systematic review and meta-analysis was to evaluate and compare zirconia dental implants with different surface topographies, with a focus on bone to implant contact and removal torque. Methods. The systematic review of the extracted publications was performed to compare the bone to implant contact (BIC) with removal torque (RT) values of titanium dental implants and machined and surfaced modified zirconia implants...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28296966/an-oral-multispecies-biofilm-model-for-high-content-screening-applications
#9
Nadine Kommerein, Sascha N Stumpp, Mathias Müsken, Nina Ehlert, Andreas Winkel, Susanne Häussler, Peter Behrens, Falk F R Buettner, Meike Stiesch
Peri-implantitis caused by multispecies biofilms is a major complication in dental implant treatment. The bacterial infection surrounding dental implants can lead to bone loss and, in turn, to implant failure. A promising strategy to prevent these common complications is the development of implant surfaces that inhibit biofilm development. A reproducible and easy-to-use biofilm model as a test system for large scale screening of new implant surfaces with putative antibacterial potency is therefore of major importance...
2017: PloS One
https://www.readbyqxmd.com/read/28296644/multiscale-porous-titanium-surfaces-via-a-two-step-etching-process-for-improved-mechanical-and-biological-performance
#10
Tae-Sik Jang, Hyun-Do Jung, Sungwon Kim, Byeong-Seok Moon, Jaeuk Baek, Cheonil Park, Juha Song, Hyoun-Ee Kim
Titanium (Ti)-based dental implants with multiscale surface topography have attracted great attention as a promising approach to enhance fixation and long-term stability of the implants, through the synergistic effect of nano- and microscale surface roughness, for accelerated bone regeneration and improved mechanical interlocking. However, structural integrity and mechanical stability of the multiscale roughened Ti surface under deformation need to be considered because significant deformation of dental implants is often induced during the surgical operation...
March 15, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28291850/efficiency-of-nanotube-surface-treated-dental-implants-loaded-with-doxycycline-on-growth-reduction-of-porphyromonas-gingivalis
#11
Cimara Fortes Ferreira, Jegdish Babu, Azhang Hamlekhan, Sweetu Patel, Tolou Shokuhfar
PURPOSE: The prevalence of peri-implant infection in patients with dental implants has been shown to range from 28% to 56%. A nanotube-modified implant surface can deliver antibiotics locally and suppress periodontal pathogenic bacterial growth. The aim of this study was to evaluate the deliverability of antibiotics via a nanotube-modified implant. MATERIALS AND METHODS: Dental implants with a nanotube surface were fabricated and loaded with doxycycline. Afterward, each dental implant with a nanotube surface was placed into 2-mL tubes, removed from solution, and placed in a fresh solution daily for 28 days...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28285161/nanoparticle-mediated-ppar%C3%AE-gene-delivery-on-dental-implants-improves-osseointegration-via-mitochondrial-biogenesis-in-diabetes-mellitus-rat-model
#12
Young-Hee Lee, Jeong-Seok Kim, Ji-Eun Kim, Min-Ho Lee, Jae-Gyu Jeon, Il-Song Park, Ho-Keun Yi
Diabetes mellitus (DM) has a detrimental effect on osseointegration, stability and longevity of implants due to osteoporosis. In this study, PPARγ-loaded dental implants were investigated for the improvement of osseointegration and peri-implantitis. Chitosan gold nanoparticles conjugated with PPARγ cDNA were introduced on titanium mini-implant surfaces for PPARγ release to rat mandibular. DM-induced rat mandible showed structural changes such as decreased bone mass and increased inflammatory molecules, and diminution of PPARγ expression and bone formation molecules compared to normal rats...
March 8, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28283813/effects-of-photodynamic-laser-and-violet-blue-led-irradiation-on-staphylococcus-aureus-biofilm-and-escherichia-coli-lipopolysaccharide-attached-to-moderately-rough-titanium-surface-in-vitro-study
#13
Marco Giannelli, Giulia Landini, Fabrizio Materassi, Flaminia Chellini, Alberto Antonelli, Alessia Tani, Daniele Nosi, Sandra Zecchi-Orlandini, Gian Maria Rossolini, Daniele Bani
Effective decontamination of biofilm and bacterial toxins from the surface of dental implants is a yet unresolved issue. This study investigates the in vitro efficacy of photodynamic treatment (PDT) with methylene blue (MB) photoactivated with λ 635 nm diode laser and of λ 405 nm violet-blue LED phototreatment for the reduction of bacterial biofilm and lipopolysaccharide (LPS) adherent to titanium surface mimicking the bone-implant interface. Staphylococcus aureus biofilm grown on titanium discs with a moderately rough surface was subjected to either PDT (0...
March 10, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28281851/antibacterial-activity-and-biofilm-inhibition-by-surface-modified-titanium-alloy-medical-implants-following-application-of-silver-titanium-dioxide-and-hydroxyapatite-nanocoatings
#14
A Besinis, S D Hadi, H R Le, C Tredwin, R D Handy
One of the most common causes of implant failure is peri-implantitis, which is caused by bacterial biofilm formation on the surfaces of dental implants. Modification of the surface nanotopography has been suggested to affect bacterial adherence to implants. Silver nanoparticles are also known for their antibacterial properties. In this study, titanium alloy implants were surface modified following silver plating, anodisation and sintering techniques to create a combination of silver, titanium dioxide and hydroxyapatite (HA) nanocoatings...
March 17, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28275282/additive-manufacturing-for-surgical-planning-of-mandibular-fracture
#15
Nadja Maria da Silva Oliveira Brito, Renata de Souza Coelho Soares, Erik Lafitt Tavares Monteiro, Sergio Charifker Ribeiro Martins, Josuel Raimundo Cavalcante, Rafael Grotta Grempel, José Augusto de Oliveira Neto
Currently, imaging techniques such as Computed Tomography with three-dimensional reconstruction (3D) and Magnetic Resonances are being routinely used in pre-surgical planning in all fields of medicine. Nowadays, virtual three-dimensional images, commonly displayed on two-dimensional surfaces, such as the computer screen, can be used to produce rapidly prototyped models, with excellent dimensional accuracy and fine reproduction of anatomical structures, providing professionals with the ability to use the biomodel in planning and simulating medical and dental procedures (oral and maxillofacial surgery, making individualized facial implants and prostheses, measurements and previous adaptations of prefabricated fixation plates), thus contributing to considerable reductions in surgical time and consequently the duration of anesthesia, minimizing infection risks and reducing hospital costs...
December 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28274193/a-peptide-based-biological-coating-for-enhanced-corrosion-resistance-of-titanium-alloy-biomaterials-in-chloride-containing-fluids
#16
Noah Muruve, Yuanchao Feng, Jaye Platnich, Daniel Hassett, Randall Irvin, Daniel Muruve, Frank Cheng
Titanium alloys are common materials in the manufacturing of dental and orthopedic implants. Although these materials exhibit excellent biocompatibility, corrosion in response to biological fluids can impact prosthesis performance and longevity. In this work, a PEGylated metal binding peptide (D-K122-4-PEG), derived from bacteria Pseudomonas aeruginosa, was applied on a titanium (Ti) alloy, and the corrosion resistance of the coated alloy specimen was investigated in simulated chloride-containing physiological fluids by electrochemical impedance spectroscopy and micro-electrochemical measurements, surface characterization, and biocompatibility testing...
March 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28260888/the-response-of-human-osteoblasts-epithelial-cells-fibroblasts-macrophages-and-oral-bacteria-to-nanostructured-titanium-surfaces-a-systematic-study
#17
Xinchao Miao, Donghui Wang, Lianyi Xu, Jie Wang, Deliang Zeng, Shuxian Lin, Cui Huang, Xuanyong Liu, Xinquan Jiang
Nanotopography modification is a major focus of interest in current titanium surface design; however, the influence of the nanostructured surface on human cell/bacterium behavior has rarely been systematically evaluated. In this study, a homogeneous nanofiber structure was prepared on a titanium surface (Nano) by alkali-hydrothermal treatment, and the effects of this Nano surface on the behaviors of human MG-63 osteoblasts, human gingival epithelial cells (HGECs) and human gingival fibroblasts (HGFs) were evaluated in comparison with a smooth titanium surface (Smooth) by polishing and a micro-rough titanium surface (Micro) by sandblasting and acid etching...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28254309/osteo-growth-induction-titanium-surface-treatment-reduces-ros-production-of-mesenchymal-stem-cells-increasing-their-osteogenic-commitment
#18
Paolo Ghensi, Eriberto Bressan, Chiara Gardin, Letizia Ferroni, Lucio Ruffato, Mauro Caberlotto, Claudio Soldini, Barbara Zavan
Surface characteristics play a special role for the biological performance of implants and several strategies are available to this end. The OGI (Osteo Growth Induction) titanium surface is a surface, obtained by applying a strong acid onto the blasted surface. The aim of this in-vitro study is to evaluate in vitro the osteoproperties of OGI surfaces on Mesenchymal Stem cells derived from dental pulp. Our results confirm that this treatment exert a positive effect on mitochondrial homeostasis, as shown by a decrease in ROS production related to environmental stress on the mitochondria...
May 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28253064/effects-of-two-diode-lasers-with-and-without-photosensitization-on-contaminated-implant-surfaces-an-ex-vivo-study
#19
Nicola Alberto Valente, Thomas Mang, Michael Hatton, Lynn Mikulski, Sebastiano Andreana
OBJECTIVE: The aim of this ex vivo study is to assess decontamination potential of two different diode laser wavelengths, with or without the aid of photodynamic therapy, on dental implant surfaces and to evaluate the harmful potential of temperature increase during laser irradiation. MATERIALS AND METHODS: One hundred thirty-two machined sterile implants were placed into sterile porcine bone blocks with standardized coronal angular bony defects and inoculated with Streptococcus sanguinis...
February 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28246094/bactericidal-and-antimicrobial-effects-of-pure-titanium-and-titanium-alloy-treated-with-short-term-low-energy-uv-irradiation
#20
T Itabashi, K Narita, A Ono, K Wada, T Tanaka, G Kumagai, R Yamauchi, A Nakane, Y Ishibashi
OBJECTIVES: The surface of pure titanium (Ti) shows decreased histocompatibility over time; this phenomenon is known as biological ageing. UV irradiation enables the reversal of biological ageing through photofunctionalisation, a physicochemical alteration of the titanium surface. Ti implants are sterilised by UV irradiation in dental surgery. However, orthopaedic biomaterials are usually composed of the alloy Ti6Al4V, for which the antibacterial effects of UV irradiation are unconfirmed...
February 2017: Bone & Joint Research
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