Personal profile
Biography
I am an Associate Professor in Dental Public Health at the University of Portsmouth, and the NIHR RDN South Central Specialty Lead for Oral and Dental Health, providing strategic leadership across academic, NHS, and local authority partnerships.
I qualified as a Dentist at the Universidad de Chile and completed an MSc in Dental Public Health and a PhD in Dentistry at the University of Sheffield.
My research addresses oral health inequalities through the design, delivery, and evaluation of applied public health interventions across the life course. I have particular expertise in school-based supervised toothbrushing programmes, care home oral health, teledentistry and digital screening approaches, and mixed-methods and implementation research. I provide strategic leadership for the development, delivery, and growth of dental public health research. This includes supporting NIHR portfolio studies, building research capacity within primary and community dental care, and strengthening partnerships across academic and service settings. I have led and contributed to regional and national research programmes with a strong focus on feasibility, acceptability, and scalability, supporting the translation of research findings into sustainable improvements in community oral health policy and practice.
Education/Academic qualification
BA (Hons), Universidad de Chile
Master of Science, University of Sheffield
Ph.D., University of Sheffield
External positions
Lecturer in Primary Dental Care Research, King's College London
Teacher in Dental Public Health, King's College London
Research Assistant, University College London
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 4 Quality Education
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Collaborations and top research areas from the last five years
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An evaluation of an ICB-sponsored pilot into improving access to domiciliary dentistry for care home residents using dental skill mix in Sussex
Emanuel, R., Hearnshaw, S., Machuca Vargas, C. A., Rahim, S., Downie, K., Crathern, C., Tucker, M. & Coleman, E., 20 Mar 2026, In: BDJ Team. 13, p. 90-94Research output: Contribution to journal › Article › peer-review
Open AccessFile -
Economic evaluation of dental prevention programmes in primary schools: a scoping review
Orlando, R., Turkistani, S., Louca, C. & Machuca Vargas, C. A., 6 Feb 2026, (Early online) In: British Dental Journal. p. 1-8 8 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile3 Downloads (Pure) -
Endodontic anaesthesia in the hot tooth: integrating mechanisms, clinical evidence, and practice-based clinical insights
Aggarwal, V., Singla, M., Vargas, C. M. & Louca, C., 30 Mar 2026, In: Journal of Oral and Maxillofacial Anesthesia. 5, p. 1-12 12 p.Research output: Contribution to journal › Review article › peer-review
Open AccessFile22 Downloads (Pure) -
Staff perspectives on using an intraoral camera in early years school screening
Orlando, R., Turkistani, S., Louca, C. & Machuca Vargas, C. A., 9 Mar 2026, (Accepted for publication) In: British Dental Journal.Research output: Contribution to journal › Article › peer-review
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Unpacking health literacy disparities in migrant and ethnic minority communities in England
Machuca Vargas, C. A., Turkistani, S. & David, A., 6 Feb 2026, (Early online) In: Journal of Immigrant and Minority Health. 8 p.Research output: Contribution to journal › Article › peer-review
Open AccessFile3 Downloads (Pure)
Projects
- 14 Finished
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Gingival Evaluation and Monitoring in Care Homes with AI Support (GEM-CARE)
Machuca Vargas, C. (PI)
1/06/25 → 31/03/26
Project: Research
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Using intraoral cameras within a supervised toothbrushing programme in primary schools in SE England: process evaluation of the TeleBrush UP Programme
Machuca Vargas, C. (PI) & Louca, C. (CoI)
1/12/24 → 31/12/25
Project: Research
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NIHR ARC Wessex Statistical Analysis Internship Award
Machuca Vargas, C. (PI), Roddis, J. (CoI) & Watts, J. (CoI)
25/03/24 → 25/09/24
Project: Research
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A literature review of Dental care experience of the underserved community of Portsmouth
Dedhia, B. (PI) & Machuca Vargas, C. (CoI)
NIHR Applied Research Collaborations Wessex
1/03/24 → 31/08/24
Project: Research
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Exploring perspectives of health literacy needs of migrants and minority ethnic groups
Machuca Vargas, C. (PI)
1/10/23 → 31/03/24
Project: Research
Activities
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UKRI Reviewer-ESRC responsive mode: secondary data analysis
Machuca Vargas, C. (Reviewer)
2025Activity: Grant Peer-Review › Grant Peer-Reviewer (External)
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Community Dental Health (Journal)
Machuca Vargas, C. (Guest editor)
2025 → …Activity: Publication peer-review and editorial work types › Editorial activity
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Westminster Health Forum
Machuca Vargas, C. (Invited speaker)
30 Nov 2023Activity: Talk or presentation types › Invited talk
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Presentation to NIHR-CRN Wessex Research Sites Initiative
Machuca Vargas, C. (Speaker) & Louca, C. (Speaker)
7 Nov 2023Activity: Talk or presentation types › Oral presentation
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UCLL Symposium on Oral Health
Machuca Vargas, C. (Invited speaker)
23 Mar 2023Activity: Talk or presentation types › Oral presentation
Prizes
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DiMED (Digital Medicine Collaboration) setup and proof of concept of a study looking at the use of digital medicine to minimise negative effects of the use of GLP-1 drugs for the management of obesity on patients’ nutritional status
Machuca Vargas, C. (Recipient), Andrikopoulou, E. (Recipient), Herrera, H. (Recipient) & Kelly, M. (Recipient), 29 Apr 2026
Prize: Prize (including medals and awards)