First titanium dental implants with white surfaces: Preparation and in vitro tests

2014 ◽  
Vol 30 (7) ◽  
pp. 759-768 ◽  
Author(s):  
Milena R. Kaluđerović ◽  
Joachim P. Schreckenbach ◽  
Hans-Ludwig Graf
Keyword(s):  
Dental Implants ◽  
In Vitro Tests ◽  
Titanium Dental Implants

scholarly journals Direct Metal Laser Sintering Titanium Dental Implants: A Review of the Current Literature

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
F. Mangano ◽  
L. Chambrone ◽  
R. van Noort ◽  
C. Miller ◽  
P. Hatton ◽  
...  
Keyword(s):  
Dental Implants ◽  
Methodological Quality ◽  
Meta Analysis ◽  
Three Dimensional ◽  
Laser Sintering ◽  
Titanium Implants ◽  
Human Studies ◽  
Direct Metal Laser Sintering ◽  
Titanium Dental Implants

Statement of Problem. Direct metal laser sintering (DMLS) is a technology that allows fabrication of complex-shaped objects from powder-based materials, according to a three-dimensional (3D) computer model. With DMLS, it is possible to fabricate titanium dental implants with an inherently porous surface, a key property required of implantation devices.Objective. The aim of this review was to evaluate the evidence for the reliability of DMLS titanium dental implants and their clinical and histologic/histomorphometric outcomes, as well as their mechanical properties.Materials and Methods. Electronic database searches were performed. Inclusion criteria were clinical and radiographic studies, histologic/histomorphometric studies in humans and animals, mechanical evaluations, andin vitrocell culture studies on DMLS titanium implants. Meta-analysis could be performed only for randomized controlled trials (RCTs); to evaluate the methodological quality of observational human studies, the Newcastle-Ottawa scale (NOS) was used.Results. Twenty-seven studies were included in this review. No RCTs were found, and meta-analysis could not be performed. The outcomes of observational human studies were assessed using the NOS: these studies showed medium methodological quality.Conclusions. Several studies have demonstrated the potential for the use of DMLS titanium implants. However, further studies that demonstrate the benefits of DMLS implants over conventional implants are needed.

In vitro biological outcome of laser application for modification or processing of titanium dental implants

2017 ◽  
Vol 32 (5) ◽  
pp. 1197-1206 ◽  
Author(s):  
Ahmed Hindy ◽  
Farzam Farahmand ◽  
Fahimeh sadat Tabatabaei
Keyword(s):  
Dental Implants ◽  
Laser Application ◽  
Titanium Dental Implants

scholarly journals Defining surfaces : Implant topography – a review (Preprint)

2018 ◽  
Author(s):  
Preeti Satheesh Kumar ◽  
Vyoma Venkatesh Grandhi ◽  
Vrinda Gupta
Keyword(s):  
Surface Roughness ◽  
Surface Topography ◽  
Dental Implants ◽  
Sol Gel ◽  
Implant Surface ◽  
Research Publications ◽  
Bone To Implant Contact ◽  
Titanium Dental Implants

BACKGROUND . A variety of claims are made regarding the effects of surface topography on implant osseointegration. The development of implant surfaces topography has been empirical, requiring numerous in vitro and in vivo tests. Most of these tests were not standardized, using different surfaces, cell populations or animal models. The exact role of surface chemistry and topography on the early events of the osseointegration of dental implants remain poorly understood. OBJECTIVE This review considers the major claims made concerning the effects of titanium implant surface topography on osseointegration. The osseointegration rate of titanium dental implants is related to their composition and surface roughness. The different methods used for increasing surface roughness or applying osteoconductive coatings to titanium dental implants are reviewed. Important findings of consensus are highlighted, and existing controversies are revealed. METHODS This review considers many of the research publications listed in MEDLINE and presented in biomedical research publications and textbooks. Surface treatments, such as titanium plasma-spraying, grit-blasting acid-etching,alkaline etching, anodization,polymer demixing ,sol gel conversion and their corresponding surface morphologies and properties are described. RESULTS Many in vitro evaluations are not predictive of or correlated with in vivo outcomes. In some culture models, increased surface topography positively affects pro-osteogenic cellular activities. Many studies reveal increase in bone-to-implant contact,with increased surface topography modifications on implant surfaces. CONCLUSIONS Increased implant surface topography improves the bone-to-implant contact and the mechanical properties of the enhanced interface.

An in-vitro study of the sterilization of titanium dental implants using low intensity UV-radiation

2005 ◽  
Vol 21 (8) ◽  
pp. 756-760 ◽  
Author(s):  
D. Jason Riley ◽  
Valter Bavastrello ◽  
Ugo Covani ◽  
Antonio Barone ◽  
Claudio Nicolini
Keyword(s):  
Dental Implants ◽  
Uv Radiation ◽  
In Vitro Study ◽  
Vitro Study ◽  
Low Intensity ◽  
Titanium Dental Implants

IN VITRO STUDY AND MECHANICAL CHARACTERISTICS OF DENTAL IMPLANTS MADE OF VARIOUS MATERIALS AND FABRICATION METHODS

2021 ◽  
Vol 21 (01) ◽  
pp. 2150004
Author(s):  
MEHDI MASHHADI ◽  
REZA HAMZELOO ◽  
MEGHDAD FALLAH
Keyword(s):  
Dental Implants ◽  
Surface Hardness ◽  
In Vitro Study ◽  
Surface Characteristics ◽  
Topology Design ◽  
In Vitro Tests ◽  
Implant Surface ◽  
Experimental Surface ◽  
Hardness Values

Selecting materials and alloys, fabrication methods, surface characteristics and coatings, and topology design, all affect the mechanical properties, biocompatibility, and functionality of dental implants. The success in embedding implants in mouth and improving biocompatibility and consequently useful life of implants depends directly on proper adhesion of tissue to implant surface of a biocompatible alloy. In this research, experimental surface hardness and in vitro tests are carried out on samples with different alloys and different manufacturing methods. Various fabrication techniques, such as machining and 3D printing (Selective laser melting (SLM)), are considered for steel and titanium specimens. Results show that the hardness values of specimens made by the SLM method are higher than machined samples about 8% and also stainless steels samples have higher hardness than titanium specimens. A comparison of scanning electron microscopy (SEM) surface pictures indicates that applying modern fabrication methods for production which includes SLM improves the performance of implants in terms of mechanical and biocompatibility by increasing cell adhesion up to 21 times. In addition, results indicate that titanium alloys have almost 13% higher adhesion property than stainless steel and generally exhibit a higher balance of adhesion and cell growth.

scholarly journals Effects of Positions and Angulations of Titanium Dental Implants in Biomechanical Performances in the All-on-Four Treatment: 3D Numerical and Strain Gauge Methods

Metals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 280
Author(s):  
Aaron Yu-Jen Wu ◽  
Jui-Ting Hsu ◽  
Lih-Jyh Fuh ◽  
Heng-Li Huang
Keyword(s):  
Cortical Bone ◽  
Dental Implants ◽  
Dental Implant ◽  
Principal Strain ◽  
In Vitro Tests ◽  
Stress And Strain ◽  
In Vitro Experiments ◽  
Bone Stress ◽  
Bone Strains

In finite element (FE) simulations, the peak bone stresses were higher when loading with a cantilever extension (CE) than when loading without a CE by 33–49% in the cortical bone. In the in vitro experiments, the highest values of principal strain were all within the range of the minimum principal strain, and those peak bone strains were 40–58% greater when loading with a CE than when loading without a CE (p < 0.001). This study investigated how varying the implanted position and angulation of anterior implants in the All-on-Four treatment influenced the biomechanical environment in the alveolar bone around the dental implants. Ten numerical simulations of FE models and three in vitro samples of All-on-Four treatment of dental implants were created to investigate the effects of altering the implanted position and angulation type of anterior implants. A single load of 100 N was applied in the molar region in the presence or absence of a CE of the denture. The 3D FE simulations analyzed the von-Mises stresses in the surrounding cortical bone and trabecular bone. For the in vitro tests, the principal bone strains were recorded by rosette strain gauges and statistically evaluated using the Mann–Whitney U test and the Kruskal–Wallis test. Loading in the presence of a CE of the denture induced the highest bone stress and strain, which were 53–97% greater in the FE simulation and 68–140% in the in vitro experiments (p < 0.008) than when loading without a CE. The bone stresses in the FE models of various implanted positions and angulation types of anterior implants were similar to those in the model of a typical All-on-Four treatment. In vitro tests revealed that the bone strains were significantly higher in the samples with various angulation types of anterior implants (p < 0.008). In the All-on-Four treatment of dental implants, the bone stress and strain were higher when the load was applied to the CE of dentures. Altering the position or angulation of the anterior dental implant in the All-on-Four treatment has no benefit in relieving the stress and strain of the bone around the dental implant.

Accuracy of detecting and measuring buccal bone thickness adjacent to titanium dental implants—a cone beam computed tomography in vitro study

2018 ◽  
Vol 126 (5) ◽  
pp. 432-438 ◽  
Author(s):  
Gabriela Salatino Liedke ◽  
Rubens Spin-Neto ◽  
Heloisa Emilia Dias da Silveira ◽  
Lars Schropp ◽  
Andreas Stavropoulos ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Dental Implants ◽  
Cone Beam Computed Tomography ◽  
In Vitro Study ◽  
Vitro Study ◽  
Cone Beam ◽  
Bone Thickness ◽  
Titanium Dental Implants

scholarly journals Zirconia vs. Titanium Dental Implants: Primary Stability In-Vitro Analysis

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7886
Author(s):  
Nerea Arlucea ◽  
Aritza Brizuela-Velasco ◽  
Markel Dieguez-Pereira ◽  
Miquel Punset ◽  
Meritxell Molmeneu ◽  
...  
Keyword(s):  
Dental Implants ◽  
Primary Stability ◽  
Titanium Implants ◽  
Insertion Torque ◽  
Static Compression ◽  
Compression Load ◽  
Vitro Analysis ◽  
Titanium Dental Implants ◽  
Zirconia Implants

The present experimental trial uses two types of dental implants, one made of titanium (Ti6Al4V) and the other one of zirconia (ZrO2), but both of identical design, to compare their stability and micro-movements values under load. One of each type of implant (n = 42) was placed into 21 cow ribs, recording the insertion torque and the resonance frequency using a specific transducer. Subsequently, a prosthetic crown made of PMMA was screwed onto each of the implants in the sample. They were then subjected to a static compression load on the vestibular cusp of the crown. The resulting micromovements were measured. The zirconia implants obtained a higher mean of both IT and RFA when compared with those of titanium, with statistically significant differences in both cases (p = 0.0483 and p = 0.0296). However, the micromovement values when load was applied were very similar for both types, with the differences between them (p = 0.3867) not found to be statistically significant. The results show that zirconia implants have higher implant stability values than titanium implants. However, the fact that there are no differences in micromobility values implies that caution should be exercised when applying clinical protocols for zirconia based on RFA, which only has evidence for titanium.

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