Dr. Marshall joined the University of Iowa College of Dentistry in 1991. She is a registered dietician and an associate professor in the Department of Preventive and Community Dentistry. In 2010, she was appointed director of experiential learning.
Dr. Marshall coordinates and teaches the nutrition curriculum within the College of Dentistry. She also directs the experiential course for first- and second-year dental students.
Dr. Marshall's research interests focus on nutrition, oral health and systemic health. Current research efforts include diet, growth, and oral health in young children, as well as nutrition and oral health in the elderly.
1: Lynch DJ, Villhauer AL, Warren JJ, Marshall TA, Dawson DV, Blanchette DR, Phipps KR, Starr DE, Drake DR. Genotypic characterization of initial acquisition of Streptococcus mutans in American Indian children. J Oral Microbiol. 2015 Apr 1;7:27182. doi: 10.3402/jom.v7.27182. eCollection 2015. PubMed PMID: 25840611; PubMed Central PMCID: PMC4385128.
2: Marshall TA. Nomenclature, characteristics, and dietary intakes of sugars. J Am Dent Assoc. 2015 Jan;146(1):61-4. doi: 10.1016/j.adaj.2014.11.007. Epub 2014 Dec 18. PubMed PMID: 25569500.
3: Vargas CM, Dye BA, Kolasny CR, Buckman DW, McNeel TS, Tinanoff N, Marshall TA, Levy SM. Early childhood caries and intake of 100 percent fruit juice: Data from NHANES, 1999-2004. J Am Dent Assoc. 2014 Dec;145(12):1254-61. doi: 10.14219/jada.2014.95. PubMed PMID: 25429039.
4: Shonka JM, Weber-Gasparoni K, Kramer KW, Warren J, Marshall TA, Dawson DV. Spill-proof beverage container usage among young WIC-enrolled children. Pediatr Dent. 2014 May-Jun;36(3):222-7. PubMed PMID: 24960389.
5: Marshall TA. Low intake of sugars may reduce risk of dental caries. J Evid Based Dent Pract. 2014 Jun;14(2):56-8. doi: 10.1016/j.jebdp.2014.04.018. Epub 2014 Apr 12. PubMed PMID: 24913526.
6: Hernández M, Marshall TA. Reduced odds of pulpal exposure when using incomplete caries removal in the treatment of dentinal cavitated lesions. J Am Dent Assoc. 2014 Jun;145(6):574-6. doi: 10.14219/jada.2014.8. PubMed PMID: 24878713.
7: Marshall TA, Straub-Morarend CL, Handoo N, Solow CM, Cunningham-Ford MA, Finkelstein MW. Integrating critical thinking and evidence-based dentistry across a four-year dental curriculum: a model for independent learning. J Dent Educ. 2014 Mar;78(3):359-67. PubMed PMID: 24609338.
8: Hendricks JL, Marshall TA, Harless JD, Hogan MM, Qian F, Wefel JS. Erosive potentials of brewed teas. Am J Dent. 2013 Oct;26(5):278-82. PubMed PMID: 24479280.
9: Marshall TA. Preventing dental caries associated with sugar-sweetened beverages. J Am Dent Assoc. 2013 Oct;144(10):1148-52. PubMed PMID: 24080931.
10: Weber-Gasparoni K, Warren JJ, Reeve J, Drake DR, Kramer KW, Marshall TA, Dawson DV. An effective psychoeducational intervention for early childhood caries prevention: part II. Pediatr Dent. 2013 May-Jun;35(3):247-51. PubMed PMID: 23756309.
11: Kuthy RA, Jennings AD, McQuistan MR, Marshall TA, Qian F. Influence of minor children and contribution to household income on work hours of female dentists. J Public Health Dent. 2013 Summer;73(3):245-51. doi: 10.1111/jphd.12022. Epub 2013 May 14. PubMed PMID: 23668978.
12: Marshall TA, Straub-Morarend CL, Qian F, Finkelstein MW. Perceptions and practices of dental school faculty regarding evidence-based dentistry. J Dent Educ. 2013 Feb;77(2):146-51. PubMed PMID: 23382523.
13: Straub-Morarend CL, Marshall TA, Holmes DC, Finkelstein MW. Toward defining dentists' evidence-based practice: influence of decade of dental school graduation and scope of practice on implementation and perceived obstacles. J Dent Educ. 2013 Feb;77(2):137-45. PubMed PMID: 23382522.
14: Chankanka O, Levy SM, Marshall TA, Cavanaugh JE, Warren JJ, Broffitt B, Kolker JL. The associations between dietary intakes from 36 to 60 months of age and primary dentition non-cavitated caries and cavitated caries. J Public Health Dent. 2012 Nov 8. doi: 10.1111/j.1752-7325.2012.00376.x. PubMed PMID: 23134446.
15: Chankanka O, Cavanaugh JE, Levy SM, Marshall TA, Warren JJ, Broffitt B, Kolker JL. Longitudinal associations between children's dental caries and risk factors. J Public Health Dent. 2011 Fall;71(4):289-300. doi: 10.1111/j.1752-7325.2011.00271.x. Epub 2011 May 31. PubMed PMID: 22320287; PubMed Central PMCID: PMC4353577.
16: Chankanka O, Marshall TA, Levy SM, Cavanaugh JE, Warren JJ, Broffitt B, Kolker JL. Mixed dentition cavitated caries incidence and dietary intake frequencies. Pediatr Dent. 2011 May-Jun;33(3):233-40. PubMed PMID: 21703076; PubMed Central PMCID: PMC3690298.
17: Shelley JJ, McQuistan MR, Delacruz G, Marshall TA, Momany ET. Significant indicators of intent to leave among Army Dental Corps junior officers. Mil Med. 2011 Jun;176(6):631-8. PubMed PMID: 21702379.
18: Marshall TA. Dietary Guidelines for Americans, 2010: an update. J Am Dent Assoc. 2011 Jun;142(6):654-6. PubMed PMID: 21628687.
19: Marshall TA, Finkelstein MW, Qian F. Improved student performance following instructional changes in a problem-based learning curriculum. J Dent Educ. 2011 Apr;75(4):466-71. PubMed PMID: 21460267.
20: Straub-Morarend CL, Marshall TA, Holmes DC, Finkelstein MW. Informational resources utilized in clinical decision making: common practices in dentistry. J Dent Educ. 2011 Apr;75(4):441-52. PubMed PMID: 21460265.
21: Johnsen DC, Marshall TA, Finkelstein MW, Cunningham-Ford MA, Straub-Morarend CL, Holmes DC, Armstrong SR, Aquilino SA, Sharp HM, Solow CM, McQuistan MR. A model for overview of student learning: a matrix of educational outcomes versus methodologies. J Dent Educ. 2011 Feb;75(2):160-8. PubMed PMID: 21293038.
22: Levy SM, Broffitt B, Marshall TA, Eichenberger-Gilmore JM, Warren JJ. Associations between fluorosis of permanent incisors and fluoride intake from infant formula, other dietary sources and dentifrice during early childhood. J Am Dent Assoc. 2010 Oct;141(10):1190-201. PubMed PMID: 20884921.
23: Nair R, Weber-Gasparoni K, Marshall TA, Warren JJ, Levy SM. Factors affecting early childhood caries among WIC-enrolled children in Linn County, Iowa. J Dent Child (Chic). 2010 Sep-Dec;77(3):158-65. PubMed PMID: 22044469.
24: Murrell S, Marshall TA, Moynihan PJ, Qian F, Wefel JS. Comparison of in vitro erosion potentials between beverages available in the United Kingdom and the United States. J Dent. 2010 Apr;38(4):284-9. doi: 10.1016/j.jdent.2009.11.008. Epub 2009 Dec 3. PubMed PMID: 19962418; PubMed Central PMCID: PMC2835825.
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Dr. Marshall is a member of the American Dietetic Association, the Iowa Dietetic Association, the International Association for Dental Research, the American Dental Education Association, and the American Association of Public Health Dentistry. She is past secretary of the Nutrition Education for Health Professionals practice group, past secretary-treasurer of the Nutrition Section, and past president of the Iowa Section of the International Association for Dental Research. She is a reviewer for Journal of the American Dietetic Association, Special Care Dentistry, Pediatrics, General Dentistry, European Journal of Clinical Nutrition, Journal of the American College of Nutrition, Pediatrics, Journal of Public Health Dentistry, and Community Dentistry and Oral Epidemiology.