Application of Bioengineering to Dentistry

A special issue of Bioengineering (ISSN 2306-5354). This special issue belongs to the section "Biomedical Engineering and Biomaterials".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 610

Special Issue Editor


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Guest Editor
Department of Removable Prosthodontics and Occlusion, Osaka Dental University, Osaka, Japan
Interests: implant; titanium; zirconia; PEEK; HA corting; nano structure; bacteria
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Special Issue Information

Dear Colleagues,

In order to promote innovation in the field of dentistry, it is necessary to develop not only conventional dental materials but also an emergent dentistry by incorporating advanced science and technology. In addition to biomaterials, the development of bioengineering technologies including proteins, cells, and genetic manipulation and their application to medicine are currently attracting significant attention. The development of new materials and technologies and their development into treatment methods is expected to lead to new breakthroughs and innovations in future dental practice. In this Special Issue, we invite various papers on the application of bioengineering to dentistry.

Dr. Satoshi Komasa
Guest Editor

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Keywords

  • dentistry
  • biomaterials
  • bioengineering technologies

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Published Papers (1 paper)

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Research

19 pages, 11979 KiB  
Article
Residual Stress Homogenization of Hybrid Implants
by Marta Sanjuán Álvarez, Daniel Robles, Javier Gil Mur, Saray Fernández-Hernández, Esteban Pérez-Pevida and Aritza Brizuela-Velasco
Bioengineering 2024, 11(11), 1149; https://doi.org/10.3390/bioengineering11111149 - 15 Nov 2024
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Abstract
Objectives: Hybrid implants commonly exhibit decreased corrosion resistance and fatigue due to differences in compressive residual stresses between the smooth and rough surfaces. The main objective of this study was to investigate the influence of an annealing heat treatment to reduce the residual [...] Read more.
Objectives: Hybrid implants commonly exhibit decreased corrosion resistance and fatigue due to differences in compressive residual stresses between the smooth and rough surfaces. The main objective of this study was to investigate the influence of an annealing heat treatment to reduce the residual stresses in hybrid implants. Methodology: Commercially pure titanium (CpTi) bars were heat-treated at 800 °C and different annealing times. Optical microscopy was used to analyze the resulting grain growth kinetics. Diffractometry was used to measure residual stress after heat treatment, corrosion resistance by open circuit potential (EOCP), corrosion potentials (ECORR), and corrosion currents (ICORR) of heat-treated samples, as well as fatigue behavior by creep testing. The von Mises distribution and the resulting microstrains in heat-treated hybrid implants and in cortical and trabecular bone were assessed by finite element analysis. The results of treated hybrid implants were compared to those of untreated hybrid implants and hybrid implants with a rough surface (shot-blasted). Results: The proposed heat treatment (800 °C for 30 min, followed by quenching in water at 20 °C) could successfully homogenize the residual stress difference between the two surfaces of the hybrid implant (−20.2 MPa). It provides better fatigue behavior and corrosion resistance (p ˂ 0.05, ANOVA). Stress distribution was significantly improved in the trabecular bone. Heat-treated hybrid implants performed worse than implants with a rough surface. Clinical significance: Annealing heat treatment can be used to improve the mechanical properties and corrosion resistance of hybrid surface implants by homogenizing residual stresses. Full article
(This article belongs to the Special Issue Application of Bioengineering to Dentistry)
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