Category: News

Oral diseases are among the most prevalent non-communicable diseases worldwide, disproportionally affecting vulnerable populations. Oral diseases manifest as pain, impairment, and loss of function, and can affect individuals throughout their lifetime. Our study published in Brazilian Dental Journal entitled “Dental caries and anthropometrics of children living in an informal floating Amazonian community: a cross-sectional pilot study” examines the associations between poor oral health and growth in children in the community of Claverito, on the outskirts of Iquitos, Peru.

InterACTION Labs is a transdisciplinary research program where researchers collaborate with the Claverito community on health research and interventions to improve conditions in the slum community. In 2017 the University of Washington (UW) Population Health Initiative, the Centro de Investigaciones Technologicas, Biomedicas y Medio Ambientales (CITBM), and 100,000 Strong in the Americas awarded InterACTION Labs a pilot study to understand and address health disparities in Claverito.

For this project, the focus was on the relationship between poor oral health and growth in children ages 1 to 18 years old. To quantify oral health status, we looked at traditional decayed, missing, filled teeth (dmft/DMFT) scores as well as an innovative metric of the Significant Caries Index (SiC). To quantify growth, we calculated age-sex-specific scores for height and weight: height-for-age (HAZ), weight-for-age (WAZ), and body mass index for age (ZBMI). Results found that there was a statistically significant negative association between SiC and HAZ scores. Based on our results, there is evidence to suggest a relationship between dental disease and poor growth in children.

Floating communities living in poverty are found globally, and dental caries (tooth decay) is the most common chronic disease affecting children. This research contributes to the growing body of literature demonstrating the relationship between dental disease and anthropometric deprivation in underserved communities – knowledge which is critical to promoting an integrated response to the World Health Organization’s Sustainable Development Goals.

Recently, the Faculty of Dentistry from Khon Kaen University were selected by the Education Equality Fund (EEF) to participate in the project, “Advanced Vocational Innovation Scholarships” to promote and support 30 underprivileged youth to study in the Dental Assistant Certificate Program, a one-year course certified by the Dental Council. Faculty of Dentistry at Khon Kaen University is the only dental school in the country to receive such support.

The “Advanced Vocational Innovation Scholarship” project is a full scholarship that creates educational opportunities for youth from households with the lowest incomes in the bottom 20 percent of Thailand. The scholarship provides an opportunity for these youth to pursue vocational studies in fields that are in demand in the labor market. The characteristics of support include 1) Scholarships for students that have been selected by education institutions, helping support monthly expenses and tuition fees, 2) Educational Institution Development Fund, for use in activities to improve teaching quality and promote well-being and welfare, as well as creating the work opportunities for scholarship participants, and 3) Activities to support the quality development of educational institutions and scholarship recipients academic support by local and international experts exchange of learning innovations between educational institutions and enterprises.

The EEF is a government agency under the supervision of the Prime Minister of Thailand, established according to the Education Equality Fund Act, B.E. 2561, aiming to create equality in education. This opportunity will expand current KKU efforts to increase research capacities in global oral health.

The School of Dentistry at Khon Kaen University, led by Dr. Waranuch Pitiphat, has been awarded a D43 training grant to sustainably strengthen the oral health research capacity among Low- and Middle-Income Countries (LMICs) in Southeast Asia. This grant proposes to build upon and expand two established training programs on “Clinical, Public Health, and Behavioral Oral Health Research Training for Thailand” which were awarded by the National Institutes of Health (NIH). These programs are joint efforts between the University of Washington School of Dentistry (UW) and affiliated Schools of Dentistry at Khon Kaen University (KKU) and Thammasat University (TU) in Thailand. Dr. Pitiphat, was a major collaborator and Associate Director of the previous training programs.

Investing in research has not only impacted trainees’ career development but enhanced advancement of oral health research of Southeast Asia. The leaders of the previous programs bring in their expertise in research along with their broad experience in working with and providing trainings to a network of international trainees from the region. The KKU and TU faculty members who were previous PhD-level trainees on the previous grants have now graduated, started to conduct their own research, and are ready to pass on their knowledge to the next generations of trainees. The Faculties at both KKU and TU also provide full support to the proposed program and aspire to become a major center for oral health research for the Southeast Asia region. As a result of these capacity building efforts, KKU and TU are now in a position where they could serve as a hub to provide further trainings to Southeast Asian researchers.

The DeRouen Center manuscript publishing class for junior researchers in Kenya is steadily moving forward, making strides in the publication process. This project, which was made possible by the University of Washington’s (UW) Global Innovation Fund (GIF), with collaborative efforts between the UW Dentistry, Global Health, and Libraries, the University of Nairobi (UoN), and Moi University (MU), is assisting Kenyan oral health professionals in transforming their masters’ theses into manuscripts for publication.

One of our students, Dr. Kerre Nduguyu, is hoping to publish his project entitled “Comparison of measured and predicted mesiodistal tooth-widths in 13-17-year-old Kenyans.” To determine orthodontic treatment plans adolescents and teens, mixed dentition analysis is carried out to estimate the mesiodistal tooth-widths of unerupted permanent teeth. Currently, this analysis includes radiographic analysis, regression/prediction equations, or a combination of the two. The most utilized analysis method is the Tanaka and Johnston formula. However, this analysis was based on Caucasian populations. While it continues to be used worldwide, racial and ethnic differences have shown challenges when the Tanaka and Johnston analysis is applied to other populations besides Caucasians. The aim of Dr. Nduguyu’s study was to develop an analysis tool pilot that better predicts space for the Kenyan population.

The project was a cross-sectional study carried out in sixty-eight 13–17-year-old Kenyans of African descent. Dr. Nduguyu’s research team obtained dentition casts from the children to measure for mesiodistal tooth-widths. Results indicate that there are significant differences between predicted values from the Tanaka Johnston analysis, compared to actual tooth measurements from the casts. Findings from this exciting pilot study will be used in a larger project aimed at validating a proposed space analysis equation to be used by Kenyan oral health providers.

The government of Kenya has established a company named Kenya Biovax Institute Ltd, in order to manufacture vaccines and other biologics within the country. Currently, Kenya imports 70% of required biologics and medications, but with the establishment of Kenya Biovax Institute, the hope is to manufacture the bulk of required vaccines and other biologics at home.

The shortage of COVID-19 vaccines in Kenya and through the African continent throughout the pandemic was the impetus for the new company. Supply chain issues created difficulties in vaccinating the Kenya population. Local manufacturing of COVID-19 vaccines is set to begin in April.

The creation of Kenya Biovax Institute will be a significant step towards self-sustenance in supply and availability of medical commodities. The hope is that local production of vaccines will support public healthcare programs, economic growth, national security, and the ability to more adequately control future disease outbreaks.

The current US administration aims to resettle 125,000 refugees in fiscal year 2022, up from 62,500 in fiscal year 2021, doubling the number of refugees allowed to resettle in the United States. The 2022 refugee amount is a 733% increase in the number of allowed refugees up from a historic low of 15,000 during the prior administration. In 2021, the United States welcomed refugees from 50 countries, with the majority arriving from the Democratic Republic of the Congo, Syria, Afghanistan, Ukraine, and Myanmar.

The administration memorandum outlines the current administration’s fiscal year 2022 plans to distribute 40,000 refugee spots for Africa, 35,000 for Near East and South Asia, 15,000 for East Asia, 15,000 for Latin America and the Caribbean, 10,000 for Europe and Central Asia, and 10,000 unallocated. A recently passed Congressional spending bill allotted $7 billion to the care and resettlement of Afghan refugees, after the 20-year end of the US-led ware in Afghanistan forced Afghans to flee.

The overall amount of newly arriving refugees in the country impacts the number of refugees arriving in Washington state. Given the current situation, this can be a call for action for initiatives to increase health and well-being within the local refugee community, particularly among the Washington Afghan community.

Washington state ranks third in the United States in the number of refugees it accepts. As a leader in the resettlement of refugees, identifying and addressing severe oral health disease is vital to early treatment and preventing further deterioration. With the generous support of Arcora Foundation, the Refugee Oral Health Project seeks to understand the processes of the initial refugee medical healthcare screening.

As of early December 2021, the team from the Timothy A. DeRouen Center for Global Oral Health at University of Washington has conducted initial virtual interviews with all seven clinics that are authorized to conduct initial medical screenings for newly arrived refugees in Washington state. All sites have been welcoming and open to collaborate on ways that refugees can have stable dental homes early in their resettlement journey in Washington state.

As part of our next phase, the team is currently conducting site visits to learn more about the refugee medical screening process at each clinic that will help in the implementation of strategies to aid the refugee community. Of relevance is that all seven clinics address oral health at some level, which is essential to identify severe oral health disease. The goal is to facilitate oral health integration into the resettlement process across Washington state, and establish dental homes.

Oral diseases are among the most prevalent non-communicable diseases worldwide, disproportionally affecting vulnerable populations. Oral diseases manifest as pain, impairment, and loss of function, and can affect individuals throughout their lifetime. Our study published in Annals of Global Health entitled “An Assessment of Pediatric Dental Caries and Family Quality of Life in an Informal Amazonian Community” examines the associations between child dental health status (DHS) and child and family quality of life in the community of Claverito, on the outskirts of Iquitos, Peru.

Untreated dental caries in permanent teeth is the most prevalent disease, and dental caries of the primary teeth affect more than 530 million children. Oral diseases manifest as pain, impairment, and loss of function, and can affect individuals throughout their lifetime. At the most extreme end of the socioeconomic spectrum, growing populations of marginalized individuals worldwide reside in slums. Claverito, is a community in the Peruvian Amazonian rainforest, and due to lack of housing has resulted in floating structures built on the Amazon River. Unfortunately, due to such precarious housing and poor environmental conditions, residents experience chronic illnesses, vector borne and infectious diseases, exposure to severe storms and flooding, and lack of water, sanitary infrastructure, and access to food.

In 2017, a collaborative group from the University of Washington (UW) schools and departments of Dentistry, Civil and Environmental Engineering, Environmental and Occupational Health, Global Health, Landscape Architecture, Neurology, and Nursing teamed up with the Centro de Investigaciones Tecnológicas Biomédicas y Medioambientales (CITBM), the Universidad Nacional de la Amazonía Peruana (UNAP) and the Instituto Nacional de Salud (INS) in Peru and developed a transdisciplinary action research program, InterACTION Labs, to design and implement research projects aimed at advancing the health, community strength, and future development of residents of one of these informal river communities – the Community of Claverito.  As a contributor to InterACTION Labs, dental faculty collected information about the community’s oral health status and the impact of oral health on the residents’ quality of life. The purpose of this study was twofold: 1) to describe the prevalence and distribution of dental caries among the pediatric and caregiver populations of a slum community located on the Amazon River in Claverito, Peru; and 2) to evaluate the relationships between the children’s dental health status and their oral health related quality of life (OHRQoL) of the children and the impact of the child’s condition on the family.

Children and their caregivers living in the Community of Claverito exhibited high levels of dental caries. Children’s untreated dental caries were associated with both family’s quality of life and caregivers’ untreated dental caries. Further research is needed on how improving availability and access to oral health services have the potential to benefit the health of residents of informal communities like the one of Claverito.

Dr. María Elena Inocente Díaz from Universidad Peruana Cayetano Heredia (UPCH) in Lima, Peru has ranked second in the Bicentennial Generation awards. A graduate of UPCH’s Stomotology program, her excellence in oral health has led to a scholarship to the attend the Johns Hopkins University Master of Public Health program in Baltimore, Maryland, USA.

Oral health and dentistry have been a family tradition for Dr. Inocente Diaz, as both her mother and aunt have both dedicated their careers to public health dentistry. She hopes to do the same, after being introduced to the area of study in the UPCH Stomotology program’s “Social Dentistry” class which explored the dental realities in the urban-marginal areas of Lima. She went on the do her residency in the small rural town of San Miguel in Cajamarca, where she took part in the radio program “Odontologists on the Air” where she gave practical oral health advice and dispelled common dental myths.

Dr. Inocente Diaz hopes to work at improving the health system in Peru and strengthening access to quality oral healthcare upon completing her MPH program at Johns Hopkins University. She also hopes to be able to be a university professor, to collaborate in the training of public health professionals within Peru.

It is evident that breastfeeding and human breast milk provide numerous health advantages for both children and mothers. Many health organizations recommend continuing breastfeeding for as long as mother and child desire. However, there is concern that breastfeeding more than 12 months may increase caries risk in children, but existing evidence on this relationship are still inconsistent and limited, especially from longitudinal studies. Researchers at Khon Kaen University in Thailand and University of Washington, led by Sirima Sritangsirikul, PhD Program in Oral Sciences, Faculty of Dentistry, Khon Kaen University, (NIH D43 trainee, #1D43TW009071) conducted a prospective cohort study that followed 1-year-old children for 2 years to investigate the association between breastfeeding duration and dental caries titled “Impact of Prolonged and On Demand Breastfeeding on Early Childhood Caries in Khon Kaen”.

The researcher team recruited 568 one-year-old children from 18 public health facilities in Khon Kaen, Thailand and interviewed their main caregivers using a structured questionnaire every 6 months to update breastfeeding information prospectively and collect information on possible confounding factors. Disregarding other foods and liquids, “full breastfeeding” refers to feeding breast milk without formula milk, whereas “any breastfeeding” refers to feeding breast milk with or without formula milk. Based on breastfeeding duration, children were categorized into four groups: less than 6 months, 6-11 months, 12-17 months, and equal to or greater than 18 months, for full breastfeeding and any breastfeeding separately. When the children were 36 months old, a dental caries examination was performed by a trained and calibrated dentist using World Health Organization criteria. At the end of the study, we had 486 children who completed the two-year study follow-up.

The results were interesting. They found that full breastfeeding and any breastfeeding had different patterns of caries risk. The longer the “full breastfeeding” duration, the lower the risk of caries. In contrast, once formula milk is added in “any breastfeeding”, the longer any breastfeeding duration, the higher the risk of caries. Importantly, this study is different from most previous studies as they investigated full breastfeeding and any breastfeeding separately and categorized the duration into intervals rather than just using one cutoff point. This allowed the research team to see the differing breastfeeding and caries pattern which will be recommended for future studies.

This study just won “The 1^st Prize Winner of the Asian Academy of Preventive Dentistry (AAPD) LION AWARD” in the 14^th International Conference of Asian Academy of Preventive Dentistry (AAPD) from October 1-2, 2021, in Daegu, South Korea.