Michael D. Roach
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View article: Organic Acid-Based Anodization Process to Produce Bioactive Oxides on Titanium Implants
Organic Acid-Based Anodization Process to Produce Bioactive Oxides on Titanium Implants Open
Titanium implants are widely used in medicine because of their favorable mechanical properties and biocompatibility; however, the rapidly forming titanium oxide coatings do not provide an ideal bioactive surface to stimulate osseointegrati…
View article: Bone-like Carbonated Apatite Titanium Anodization Coatings Produced in Citrus sinensis-Based Electrolytes
Bone-like Carbonated Apatite Titanium Anodization Coatings Produced in Citrus sinensis-Based Electrolytes Open
Enhancing osseointegration is a common goal for many titanium implant coatings, since the naturally forming oxides are often bioinert and exhibit less than ideal bone-to-implant contact. Oxide coating surface topographies, chemistries, and…
View article: Characterization of Expulsion, Cell Viability, and Bacterial Attachment of Enhanced Sulfonated Hydrothermally Treated PEEK Surfaces for Implant Applications
Characterization of Expulsion, Cell Viability, and Bacterial Attachment of Enhanced Sulfonated Hydrothermally Treated PEEK Surfaces for Implant Applications Open
Porosity and roughened surfaces of implant materials have been shown to lead to improved cellular attachment and enhanced osseointegration. These topography changes in the surface also aid in the mechanical interlocking of the material to …
View article: Citrus Fruit-Based Calcium Titanate Anodization Coatings on Titanium Implants
Citrus Fruit-Based Calcium Titanate Anodization Coatings on Titanium Implants Open
With humans living longer and the median age of the population increasing, there is an ever-increasing demand for better biomedical implants. Titanium implants have a long history of successful use, but their naturally forming amorphous ox…
View article: Citrus-Fruit-Based Hydroxyapatite Anodization Coatings on Titanium Implants
Citrus-Fruit-Based Hydroxyapatite Anodization Coatings on Titanium Implants Open
The increasing demand for titanium implants necessitates improved longevity. Plasma-sprayed hydroxyapatite coatings enhance implant osseointegration but are susceptible to delamination. Alternatively, anodized hydroxyapatite coatings have …
View article: Mg-Doped Carbonated Hydroxyapatite and Tricalcium Phosphate Anodized Coatings on Titanium Implant Alloys
Mg-Doped Carbonated Hydroxyapatite and Tricalcium Phosphate Anodized Coatings on Titanium Implant Alloys Open
The rising demand for dental and orthopedic implants and their frequent aseptic loosening failure mode necessitate the drive to continue modifying implant surfaces to improve osseointegration outcomes. Plasma-sprayed hydroxyapatite coating…
View article: Phosphorus-and-Silver-Doped Crystalline Oxide Coatings for Titanium Implant Surfaces
Phosphorus-and-Silver-Doped Crystalline Oxide Coatings for Titanium Implant Surfaces Open
Bacteria-related infections remain a leading cause of dental implant failures. Despite the successful history of titanium implants, naturally forming oxides lack antibacterial properties. Crystalline oxides, modified through anodization pr…
View article: Clinical Validation of Deep Learning for Segmentation of Multiple Dental Features in Periapical Radiographs
Clinical Validation of Deep Learning for Segmentation of Multiple Dental Features in Periapical Radiographs Open
Periapical radiographs are routinely used in dental practice for diagnosis and treatment planning purposes. However, they often suffer from artifacts, distortions, and superimpositions, which can lead to potential misinterpretations. Thus,…
View article: Automatic feature segmentation in dental panoramic radiographs
Automatic feature segmentation in dental panoramic radiographs Open
Objective The purpose of the present study was to verify the diagnostic performance of an AI system for the automatic detection of teeth, caries, implants, restorations, and fixed prosthesis on panoramic radiography. Methods This is a cros…
View article: Medication Related Osteonecrosis of the Jaw: A Case Report and Review of Literature
Medication Related Osteonecrosis of the Jaw: A Case Report and Review of Literature Open
Medication-related osteonecrosis of the jaw is an adverse reaction caused by the use of antiresorptive antiangiogenic medication. The most commonly affected areas are posterior regions of mandible and maxilla. However, a simultaneous occur…
View article: Silver-Doped Titanium Oxide Layers for Improved Photocatalytic Activity and Antibacterial Properties of Titanium Implants
Silver-Doped Titanium Oxide Layers for Improved Photocatalytic Activity and Antibacterial Properties of Titanium Implants Open
Titanium has a long history of clinical use, but the naturally forming oxide is not ideal for bacterial resistance. Anodization processes can modify the crystallinity, surface topography, and surface chemistry of titanium oxides. Anatase, …
View article: Photocatalytic Activity and Antibacterial Properties of Mixed-Phase Oxides on Titanium Implant Alloy Substrates
Photocatalytic Activity and Antibacterial Properties of Mixed-Phase Oxides on Titanium Implant Alloy Substrates Open
Titanium alloys are commonly used for implants, but the naturally forming oxides are bioinert and not ideal for bacterial resistance or osseointegration. Anodization processes are a modification technique that can crystallize the oxides, a…
View article: In Vitro Evaluation of Optimized PEEK Surfaces for Enhanced Osseointegration
In Vitro Evaluation of Optimized PEEK Surfaces for Enhanced Osseointegration Open
The materials traditionally used for implant applications, such as titanium alloys, cobalt chromium, and zirconium, often require surface modifications to achieve the desired osseointegration. These materials still have the problematic str…
View article: Real World Application of EBSD Forward Models
Real World Application of EBSD Forward Models Open
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View article: Phase-Selective and Localized TiO<sub>2</sub> Coating on Additive and Wrought Titanium by a Direct Laser Surface Modification Approach
Phase-Selective and Localized TiO<sub>2</sub> Coating on Additive and Wrought Titanium by a Direct Laser Surface Modification Approach Open
Titanium has been the material of interest in biological implant applications due to its unique mechanical properties and biocompatibility. Their design is now growing rapidly due to the advent of additive manufacturing technology that ena…
View article: Additive manufacturing of fatigue resistant austenitic stainless steels by understanding process-structure–property relationships
Additive manufacturing of fatigue resistant austenitic stainless steels by understanding process-structure–property relationships Open
The limited understanding of additive manufacturing process-structure–property inter-relationships raises some concerns regarding the structural reliability, which limits the adoption of this emerging technology. In this study, laser beam-…
View article: Fatigue life estimation of additive manufactured parts in the as‐built surface condition
Fatigue life estimation of additive manufactured parts in the as‐built surface condition Open
In this study, a simple approach for estimating the effect of surface roughness on the fatigue strength of additive manufactured Ti-6Al-4V is investigated. Surface roughness parameters are used to estimate the elastic stress concentration …
View article: Environmental Effects on the Stress Corrosion Cracking Behavior of an Additively Manufactured Stainless Steel
Environmental Effects on the Stress Corrosion Cracking Behavior of an Additively Manufactured Stainless Steel Open
Additive manufacturing (AM) is becoming a more viable manufacturing process in the biomedical, aerospace, nuclear, and defense sectors as a means to fabricate near net shaped parts on demand. Austenitic stainless steels are gaining attenti…
View article: Volume Effects on the Fatigue Behavior of Additively Manufactured Ti-6Al-4V Parts
Volume Effects on the Fatigue Behavior of Additively Manufactured Ti-6Al-4V Parts Open
Recent interest to implement additive manufactured parts into structural applications has created a critical need to better understand the fatigue behavior of these parts. Alloys such as Ti-6Al-4V are popular in the aerospace and biomedica…
View article: Failure of Emperion modular femoral stem with implant analysis
Failure of Emperion modular femoral stem with implant analysis Open
Modularity in total hip arthroplasty provides multiple benefits to the surgeon in restoring the appropriate alignment and position to a previously damaged hip joint. The vast majority of modern implants incorporate modularity into their de…