Promoting the remineralisation of subsurface caries lesions

Lead Research Organisation: University of Edinburgh
Department Name: Sch of Chemistry

Abstract

Project Aim: To develop methods to promote the remineralisation of lesions in tooth enamel.

This collaborative project with Reminova will explore electro-chemical deposition methods to induce the remineralisation of lesions in the tooth enamel, aiming for the repair of the tooth. The project will focus on electron microscopy and spectroscopic techniques (SEM, TEM, XRD, FTIR, Raman) to investigate the mechanisms of electro-chemical precipitation of hydroxyapatite on enamel and methods to improve the remineralisation and repair of the tooth. This project is a collaboration between the School of Chemistry, the School of Dentistry and Reminova.

Publications

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Studentship Projects

Project Reference Relationship Related To Start End Student Name
EP/N509644/1 01/10/2016 30/09/2021
1941120 Studentship EP/N509644/1 01/09/2017 28/02/2021 Dahlia Eldosoky
 
Description Utilising electrochemical methods results in the enhancement of calcium phosphate crystallisation. Applying a potential is capable of generating thin films of amorphous calcium phosphate, at early time points, such that these were imaged using electron microscopy and diffraction data provided the information regarding the type of material produced. Electrochemical Impedance Spectroscopy was able to give more mechanistic insight on how the process is faster compared to no application of a field. The electric field was used on a collagen membrane, a substrate mimicking bone and teeth, along with a calcium phosphate solution and the results indicated that the field was capable of depositing plates of calcium phosphate material on the surface of a collagen membrane. This was also tested on real tooth but the results showed that further investigation was required.
Exploitation Route The outcomes of the research will provide the fundamentals of the process of using electrochemical methods for enhancing calcium phosphate crystallisation. This could be taken forward by other prospective researchers to further validate and optimise the process, focusing on biologically relevant materials for remineralisation, such as teeth and bone.
Sectors Healthcare,Pharmaceuticals and Medical Biotechnology

 
Description Collaborating with the Electrochemistry Group in the School of Chemistry 
Organisation University of Edinburgh
Department School of Chemistry
Country United Kingdom 
Sector Academic/University 
PI Contribution The contributions made by me include providing crystallisation knowledge, electron microscopy/diffraction and basic intellectual chemistry input in order to attain the project goal.
Collaborator Contribution The electrochemistry group have provided immense electrochemistry knowledge and help, especially aiding in training with instruments such as potentiostats. Their expertise included aiding in data manipulation/analysis to intellectual contributions with the overall research goal.
Impact The collaboration is multi-disciplinary as it is bringing both the electrochemistry and crystallisation fields together. Through this collaboration, we have been able to utilise various techniques such as cyclic voltammetry, chronoamperometry/chronopotentiometry, electrochemical impedance spectroscopy, electron microscopy and electron diffraction to provide a comprehensive look into the extent of enhancing calcium phosphate crystallisation via an electric field. Through this, we are on route to providing a model of how the process happens. This is a platform for utilising such process for more biologically relevant materials such as bone and teeth.
Start Year 2018
 
Description Oral Presentation at 2020 Materials Science and Engineering Congress 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Other audiences
Results and Impact Participated in the 2020 Materials Science and Engineering Congress where I gave a talk during the Biomaterials session about my PhD work. The purpose of this was to practice presenting my research by conveying complex ideas and techniques. The audience were mainly those who have a materials background and this therefore resulted in engagement and questions from fellow audience members.
Year(s) Of Engagement Activity 2020
 
Description Oral Presentation for Bioelectrochemistry Session at 2020 Butler Meeting 
Form Of Engagement Activity A talk or presentation
Part Of Official Scheme? No
Geographic Reach Regional
Primary Audience Postgraduate students
Results and Impact Participated in the 2020 Butler Meeting where I gave a talk during the bioelectrochemistry session about my PhD work. The purpose of this was to practice presenting my research by conveying complex ideas and techniques. The audience were mainly those who have an electrochemistry background and this therefore resulted in engagement and questions.
Year(s) Of Engagement Activity 2020