Generating evidence that matters in dentistry

South Texas Oral Health Network (STOHN) 

Welcome to the South Texas Oral Health Network (STOHN)! STOHN is a practice-based research network (PBRN) dedicated to developing a research infrastructure for generating practical and timely information to enhance the quality and efficacy of oral health care. STOHN members are practicing dentists and dental hygienists in South Texas who help to develop and implement dental research where it really matters – in their practices. Below is a description of some STOHN studies currently enrolling members:


STOHN Autism Tooth Fairy Study: In collaboration with Dr. Raymond Palmer and his team from the Department of Family and Community Medicine, STOHN launched the Autism Tooth Fairy Study to practices in South Texas. STOHN will be collecting healthy deciduous teeth that will be analyzed for potential biomarkers that impact neurological development. The STOHN study team developed and incorporated an educational environmental health component to inform dental healthcare providers of recent autism research and introduce environmentally induced illnesses. 

What is the Fuss about Floss? An Issue of Critical Thinking: In May of 2017 STOHN launched its first hygienists only study. This anonymous online survey focuses on evaluating the knowledge, awareness, and attitudes of practicing dental hygienists and dental hygiene faculty in response to the recent Associated Press (AP) report "Medical Benefits of Dental Floss Unproven"   focused on the lack of evidence supporting flossing as part of a daily oral hygiene routine. 

Assessing Patients' Knowledge and Awareness of Xerostomia and its Prevalence in South Texas: A Card Study We are interested in testing patient’s recognition and awareness of Xerostomia, also known as dry mouth. Xerostomia affects millions of people in the U.S. with an estimated prevalence from 5.5% to 46%, affecting the geriatric population most prominently. Contact us to find out more detail about the study and how to become involved. 


If you would like more information about these studies or are interested in joining STOHN, contact Rahma Mungia at


Investigator Spotlight

Shahad Abudawood B.D.S., M.S.Shahad Abudawood B.D.S., M.S., earned her Bachelor Degree of Dental Surgery with second honors from King Abdulaziz University (KAU) in Jeddah, Saudi Arabia. In 2012, she received a certificate in Advanced Education in General Dentistry (AEGD) from the University of Texas Health Science Center at San Antonio (UTHSCSA). She subsequently completed a two-year postgraduate training in Pediatric Dentistry and received a certificate in 2015.

In 2016, she obtained her Masters of Science in Dental Science degree from the same university. In September 2016 she joined UTHSCSA as assistant professor/clinical. Currently she serves as a part-time faculty, she provides clinical teaching for both pre-doctoral and post-doctoral students.

She is a Diplomate of the American Board of Pediatric Dentistry and an active member of the American Academy of Pediatric Dentistry (AAPD).

She is interested in research and recently joined the “Tooth Fairy Study” as a practitioner. As a part of this study, she is currently enrolling families and collecting deciduous teeth for analysis.

Current Activities

STOHN is currently accepting Dentist & Hygienists to join the network. Please visit our webpage to find out more.

STOHN has launched its’ first hygienist only survey study, What’s the Fuss About Floss: An Issue of Critical Thinking. Contact us today to learn more!

This past March 2017 STOHN launched the Tooth Fairy Study, collaborating with Dr. Raymond Palmers team at the Department of Family and Community Medicine. We are STILL ENROLLING practitioners, contact us today to get started!