Recent advancements in surface modifications of dental implants: systematic review

2021 ◽  
pp. 1-20
Author(s):  
Ayousha Iqbal ◽  
Komal Arshad ◽  
Maria Shakoor Abbasi ◽  
Maryam Maqsood ◽  
Ruqaya Shah ◽  
...  
Keyword(s):  
Surface Modification ◽  
Surface Morphology ◽  
Key Words ◽  
Dental Implants ◽  
Ex Vivo ◽  
Armed Forces ◽  
Implant Surface ◽  
Medical College ◽  
Abundant Evidence ◽  
Key Words Dental Implants

Abstract Implantology is one of the most investigated topic in modern dentistry, This review is aimed to systematically summarize all the industrial, mass production and experimental trends in dental implant manufacture relative primarily to their surface modification over the last year. Research was conducted in Army Medical college, NUMS, Rawalpindi, Armed forces institute of dentistry, CMH, Rawalpindi, Foundation University college of Dentistry, FFH, DHA, Islamabad and the HEC Library, HEC, Islamabad. Literature was searched on PubMed, SCOPUS, MEDLINE, Cochrane and Science direct. The key words employed were “dental Implants”, “surface modification”, “surface morphology”, “surface treatment” and “surface augmentation”. A total of 38 articles were short listed and reviewed in detail. There is abundant evidence suggesting the importance of these surface modification on improving the implant success. Several strategies have been suggested to modify the implant surface topography as well as surface chemistry in order to achieve a micro-porous structure with nano scale architecture, with increased bio activity; hydrophilicity and anti-bacterial properties. There is commendable success with many of these strategies in the lab. However, following the lab success in ex vivo studies, very few of these surface modalities have found their way to clinical set-ups. Key Words: Dental Implants, surface modification, surface morphology, Continuous...

Titanium Surface Modification Techniques for Implant Fabrication – From Microscale to the Nanoscale

2010 ◽  
Vol 5 ◽  
pp. 39-56 ◽  
Author(s):  
Karthikeyan Subramani
Keyword(s):  
Surface Modification ◽  
Dental Implants ◽  
Tio2 Nanotubes ◽  
Titanium Surface ◽  
In Vivo Studies ◽  
Contact Ratio ◽  
Implant Surface ◽  
Surface Modification Techniques

This manuscript reviews about titanium surface modification techniques for its application in orthopaedic and dental implants. There are a few limitations in the long term prognosis of orthopaedic and dental implants. Poor osseointegration with bone, periimplant infection leading to implant failure and short term longevity demanding revision surgery, are to mention a few. Micro- and nanoscale modification of titanium surface using physicochemical, morphological and biochemical approaches have resulted in higher bone to implant contact ratio and improved osseointegration. With recent advances in micro, nano-fabrication techniques and multidisciplinary research studies focusing on bridging biomaterials for medical applications, TiO2 nanotubes have been extensively studied for implant applications. The need for titanium implant surface that can closely mimic the nanoscale architecture of human bone has become a priority. For such purpose, TiO2 nanotubes of different dimensions and architectural fashions at the nanoscale level are being evaluated. This manuscript discusses in brief about the in-vitro and in-vivo studies on titanium surface modification techniques. This manuscript also addresses the recent studies done on such nanotubular surfaces for the effective delivery of osteoinductive growth factors and anti bacterial/ anti inflammatory drugs to promote osseointegration and prevent peri-implant infection.

scholarly journals Evaluation of Chemical Mechanical Polishing-Based Surface Modification on 3D Dental Implants Compared to Alternative Methods

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2286 ◽  
Author(s):  
Riaid Alsaeedi ◽  
Z. Ozdemir
Keyword(s):  
Surface Modification ◽  
Surface Chemistry ◽  
Dental Implants ◽  
Chemical Mechanical Polishing ◽  
Mechanical Performance ◽  
Roughness Parameter ◽  
Mechanical Polishing ◽  
Alternative Methods ◽  
Implant Surface ◽  
Pull Out

Chemical mechanical polishing (CMP) has been introduced in previous studies as a synergistic technique to modify the surface chemistry and topography of titanium-based implants to control their biocompatibility. In this study, the effectiveness of CMP implementation on titanium-based implant surface modification was compared to machined implants, such as baseline and etching and biphasic calcium phosphate (BCP) particle-based sand blasting treatments, in terms of the surface chemical and mechanical performance. Initially, a lab-scale 3D CMP technique was developed and optimized on commercial dental implant samples. The mechanical competitiveness of the dental implants treated with the selected methods was examined with the Vickers microhardness test as well as pull-out force and removal torque force measurements. Furthermore, the surface structures were quantified through evaluation of the arithmetic mean roughness parameter (Ra). Subsequently, the surface chemistry changes on the treated implants were studied as wettability by contact angle measurement, and surface passivation was evaluated through electrochemical methods. In each evaluation, the CMP treated samples were observed to perform equal or better than the baseline machined implants as well as the current method of choice, the BCP treatment. The ability to control the surface topography and chemistry simultaneously by the use of CMP technique is believed to be the motivation for its adaptation for the modification of implant surfaces in the near future.

scholarly journals Surface Modification of Titanium Orthodontic Implants

2021 ◽  
Author(s):  
Abdulqadir Rampurawala ◽  
Amol Patil
Keyword(s):  
Surface Modification ◽  
Dental Implants ◽  
Orthodontic Treatment ◽  
Clinical Performance ◽  
Side Surface ◽  
Implant Surface ◽  
Orthodontic Implants ◽  
Considerable Impact ◽  
And Control ◽  
Modification Of Titanium

Orthodontic miniscrews have had a considerable impact on modern orthodontic treatment, not only by providing a new source of anchors for anchorage-demanding cases, but also for force management and control. Whilst miniscrews need to be mechanically stable during treatment to provide sufficient anchorage and predictable force control, as temporary anchorage devices they need also be easy to remove after orthodontic treatment. These requirements differentiate orthodontic miniscrews from dental implants - which once placed, are not to be removed - and dictate the approach as to how their clinical performance can be optimized. Over the past decade, various titanium surface modifications and improvements in implant surface topography have shown to enhance osseointegration of endosseous dental implants. Some of these techniques have helped provide a similar enhancement of the biomechanical potential of orthodontic miniscrews as well. In this perspective, we present a brief discussion on all such reported techniques followed by a detailed account of the most recently proposed ultraviolet photofunctionalization technique - a novel chair-side surface modification method.

scholarly journals Surface Modification of Dental Implants - A Review

2021 ◽  
Vol 10 (17) ◽  
pp. 1246-1250
Author(s):  
Shamaa Anjum ◽  
Arvina Rajasekar
Keyword(s):  
Surface Roughness ◽  
Surface Modification ◽  
Dental Implants ◽  
Surface Engineering ◽  
Surface Modifications ◽  
Calcium Phosphate Coating ◽  
Acid Etching ◽  
Success Rates ◽  
Implant Surface ◽  
Osteoblast Activity

The use of dental implants for the replacement of missing teeth has increased in the last 30 years. The success rates for implant placement depend on a series of both biological and clinical steps which starts with primary stability that is being provided by the amount, quality and the distribution of bone within the proposed implant site. The most important factor in implant osseointegration is surface roughness, which shows increased osteoblast activity at 1 to 100 μm of the surface roughness when compared to a smooth surface. Rough surfaces have excellent osseointegration than smooth surfaces, but the results of research have been diverse, and it is evident that multiple treatments provide good results. The surfaces of a dental implant have been modified in several ways to improve its biocompatibility and speed up osseointegration. Literature says that any surface modification provides a good surface for osseointegration of the implant when the surface roughness is about 0.44 ~ 8.68 μm. It is also said that acid etching and coating are the most preferred methods for creating good roughness of the implant surface. From animal studies, it is known that implant surface modifications provided by biomolecular coating seemed to enhance the osseointegration by promoting peri-implant bone formation in the early stages of healing. It also seemed to improve histomorphometric analysis and biomechanical testing results. This article reviews the surface modifications of dental implants for the achievement of better success rates. Various methods are used to modify the topography or the chemistry of the implant surfaces which includes acid etching, anodic oxidation, blasting, treatment with fluoride, and calcium phosphate coating. These modifications provide a faster and a stronger osseointegration.1 Recently, hydrophilic properties added to the roughened surfaces or some osteogenic peptides coated on the surfaces shows higher biocompatibility and have induced faster osseointegration compared to the existing modified surfaces. With development in surface engineering techniques, new information on the properties, behaviour, and the reaction of various materials could be discovered which in turn allows the discovery of new materials, modification techniques and design of bio implants for the future. KEY WORDS Dental Implants, Surface Modifications, Biocompatibility, Surface Topography

Micromechanical Analysis of Dental Implants and their Surface Modification

2016 ◽  
Vol 827 ◽  
pp. 367-370
Author(s):  
Aleš Jíra ◽  
František Denk
Keyword(s):  
Surface Modification ◽  
Elastic Modulus ◽  
Chemical Composition ◽  
Surface Morphology ◽  
Dental Implants ◽  
Experimental Analysis ◽  
Microscopic Analysis ◽  
Plasma Modification ◽  
Surface Plasma

The submitted experimental analysis identifies, defines and compares the micromechanical properties of peripheral and supporting layers of intraosseous parts of dental implants through a nanoindentation method. The aim of the micromechanical tests is determination of elastic modulus and hardness. Investigated implants are characterized by the cylindrical shanks with surface plasma modification by hydroxyapatit. From the evaluated results it is evident that elastic modulus of peripheral layers of the compared samples ranges from 17 GPa to 157 GPa. The submitted work also includes a detailed microscopic analysis of surface morphology and chemical composition.

scholarly journals Intraorbital Cavernous Haemangioma (CHM)

1970 ◽  
Vol 6 (1) ◽  
pp. 32-33
Author(s):  
MS Rahman ◽  
MA Hossain
Keyword(s):  
Case Report ◽  
Optic Nerve ◽  
Ct Scan ◽  
Key Words ◽  
Rare Case ◽  
Armed Forces ◽  
Cavernous Haemangioma ◽  
Medical College ◽  
Computed Tomographic ◽  
Rare Case Report

This is an interesting and rare case report of right intraorbital cavernous haemangioma near optic nerve of a12 years boy who was hospitalized for right sided uniocular moderate axial proptosis and headache withoutany impairment of vision. Computed Tomographic (CT) scan showed fusiform enlargement of around rightoptic nerve just behind the eye ball. The mass was removed by right fronto-orbito-zygomatotomy incision anddiagnosed post-operatively as intraorbital cavernous haemangioma (CHM).Key words: Intraorbital cavernous haemangioma.DOI: 10.3329/jafmc.v6i1.5990Journal of Armed Forces Medical College, Bangladesh Vol.6(1) 2010 p.32-33

scholarly journals Electrochemical coating of dental implants with anodic porous titania for enhanced osteointegration

2015 ◽  
Vol 6 ◽  
pp. 2183-2192 ◽  
Author(s):  
Amirreza Shayganpour ◽  
Alberto Rebaudi ◽  
Pierpaolo Cortella ◽  
Alberto Diaspro ◽  
Marco Salerno
Keyword(s):  
Surface Morphology ◽  
Dental Implants ◽  
Porous Alumina ◽  
Energy Dispersive Spectrometer ◽  
Porous Coating ◽  
Implant Surface ◽  
Experimental Conditions ◽  
Conformal Coating ◽  
Porous Titania ◽  
Real Objects

Clinical long-term osteointegration of titanium-based biomedical devices is the main goal for both dental and orthopedical implants. Both the surface morphology and the possible functionalization of the implant surface are important points. In the last decade, following the success of nanostructured anodic porous alumina, anodic porous titania has also attracted the interest of academic researchers. This material, investigated mainly for its photocatalytic properties and for applications in solar cells, is usually obtained from the anodization of ultrapure titanium. We anodized dental implants made of commercial grade titanium under different experimental conditions and characterized the resulting surface morphology with scanning electron microscopy equipped with an energy dispersive spectrometer. The appearance of nanopores on these implants confirm that anodic porous titania can be obtained not only on ultrapure and flat titanium but also as a conformal coating on curved surfaces of real objects made of industrial titanium alloys. Raman spectroscopy showed that the titania phase obtained is anatase. Furthermore, it was demonstrated that by carrying out the anodization in the presence of electrolyte additives such as magnesium, these can be incorporated into the porous coating. The proposed method for the surface nanostructuring of biomedical implants should allow for integration of conventional microscale treatments such as sandblasting with additive nanoscale patterning. Additional advantages are provided by this material when considering the possible loading of bioactive drugs in the porous cavities.

Laparoscopic adrenal cystectomy - report of two cases

1970 ◽  
Vol 19 (1) ◽  
pp. 50-53
Author(s):  
GM Zakir Hossain ◽  
Mofizur Rahman ◽  
Mohammad Rashedul Hasan
Keyword(s):  
Key Words ◽  
College Teachers ◽  
Medical College

Key words: laparoscopic; adrenal cystectomydoi: 10.3329/jcmcta.v19i1.3854Journal of Chittagong Medical College Teachers' Association 2008: 19(1):50-53

scholarly journals Macrophagic Inflammatory Response Next to Dental Implants with Different Macro- and Micro-Structure: An In Vitro Study

2021 ◽  
Vol 11 (12) ◽  
pp. 5324
Author(s):  
Maria Menini ◽  
Francesca Delucchi ◽  
Domenico Baldi ◽  
Francesco Pera ◽  
Francesco Bagnasco ◽  
...  
Keyword(s):  
Inflammatory Response ◽  
Dental Implants ◽  
In Vitro Study ◽  
Titanium Implants ◽  
Implant Surface ◽  
Bone Implant ◽  
Optimal Outcomes ◽  
Negative Controls ◽  
Inflammatory Effect

(1) Background: Intrinsic characteristics of the implant surface and the possible presence of endotoxins may affect the bone–implant interface and cause an inflammatory response. This study aims to evaluate the possible inflammatory response induced in vitro in macrophages in contact with five different commercially available dental implants. (2) Methods: one zirconia implant NobelPearl® (Nobel Biocare) and four titanium implants, Syra® (Sweden & Martina), Prama® (Sweden & Martina), 3iT3® (Biomet 3i) and Shard® (Mech & Human), were evaluated. After 4 h of contact of murine macrophage cells J774a.1 with the implants, the total RNA was extracted, transcribed to cDNA and the gene expression of the macrophages was evaluated by quantitative PCR (qPCR) in relation to the following genes: GAPDH, YWHAZ, IL1β, IL6, TNFα, NOS2, MMP-9, MMP-8 and TIMP3. The results were statistically analyzed and compared with negative controls. (3) Results: No implant triggered a significant inflammatory response in macrophages, although 3iT3 exhibited a slight pro-inflammatory effect compared to other samples. (4) Conclusions: All the samples showed optimal outcomes without any inflammatory stimulus on the examined macrophagic cells.

scholarly journals Impact of exogenous metal ions on peri-implant bone metabolism: a review

RSC Advances ◽  
2021 ◽  
Vol 11 (22) ◽  
pp. 13152-13163
Author(s):  
Wei Chen ◽  
Wen-qing Zhu ◽  
Jing Qiu
Keyword(s):  
Surface Modification ◽  
Metal Ions ◽  
Bone Metabolism ◽  
Dental Implants ◽  
Materials Science ◽  
Dental Materials ◽  
Intense Research

The development of effective methods to promote the osseointegration of dental implants by surface modification is an area of intense research in dental materials science.

Sign in / Sign up

Export Citation Format

Share Document