Theodoro Weissheimer, DDS, MS, PhD

Assistant Professor/Clinical

Dr. Theodoro Weissheimer received his D.D.S. from the Lutheran University of Brazil, his M.S. and Ph.D. in Endodontics from the Federal University of Rio Grande do Sul in Brazil, and completed his specialized training in Endodontics at the Gaucho Institute of Post-Graduation in Dentistry – Brazil. Dr. Weissheimer is a clinician-scientist and educator who was granted two prestigious Brazilian government scholarships in the past and is fully committed to advancing the field of Endodontics. His primary research interests include the effects of various treatments on dental pulp, pain management, and the development of technologies for pulp/periapical diagnosis. Dr. Weissheimer currently works as an Assistant Professor in the Department of Endodontics at the University of Texas Health Science Center at San Antonio.

Professional Background
Education
- 2024 - PhD - Endodontics - Federal University of Rio Grande do Sul (UFRGS), Brazil
- 2021 - MS - Masters of Science in Endodontics - Federal University of Rio Grande do Sul (UFRGS), Brazil
- 2018 - Certificate - Endodontics - Gaucho Institute of Post-Graduation in Dentistry (IGPGO), Avantis University, Brazil
- 2017 - DDS - Doctor in Dental Surgery - Lutheran University of Brazil (ULBRA)
Training
- CNPq Scholarship - Visiting Scientist - University of Texas Health Science Center San Antonio, Tx
- CAPES Scholarship - Scholarship Holder - Federal University of Rio Grande do Sul, Brazil
- 2024 - Clinical Insturctor - Endodontics - Dental Institute of Americas (IOA), Brazil
Appointments
- 2021-2025 - Clinical Instructor - Dental Institute of Americas, Brazil
- 2023 - Visiting Scientist - CNPq Scholarship - University of Texas Health Science Center, San Antonio, Tx
- 2021-2023 - CAPES Scholarship Holder - Federal University of Rio Grande do Sul, Brazil
Publications
Articles Published
1. Michel, C. H. T., Só, B. B., Schuch, L. F., Stelter, G. O., Schmidt, T. R., Schorr, J. L., Campagnol, D., Garcez, T. N. A., Só, G. B., Arrue, T. A., Weissheimer, T., Martins, M. D., & Só, M. V. R. (2025). Effects of ovariectomy-induced osteoporosis and two photobiomodulation protocols on the repair of apical periodontitis in Wistar rats: A microCT study. International Endodontic Journal, 58, 1042-1059.
2. Hartmann, R. C., Ferraz, E. S., Weissheimer, T., Figueiredo, J. A. P., Rossi-Fedele, G., & Gomes, M. S. (2024). Comparative analysis of methods for measuring root canal curvature based on periapical radiography: A laboratory study. International Endodontic Journal, 57, 1848-1857.
3. Duarte, P. H. M., Weissheimer, T., Michel, C. H. T., Só, G. B., Rosa, R. A., & Só, M. V. R. (2023). Do orthodontic movements of traumatized teeth induce dental pulp necrosis? A systematic review. Clinical Oral Investigations, 27, 4117-4129.
4. Michel, C. H. T., Tietz, L., Mendes, A. T., Duarte, P. H. M., Weissheimer, T., Rosa, R. A., & Só, M. V. R. (2023). Effect of music during endodontic treatment on patients’ anxiety: A systematic review of randomized clinical trials. Clinical Oral Investigations, 27, 6321-6332.
5. Só, G. B., Silva, I. A., Weissheimer, T., Lenzi, T. L., Só, M. V. R., & Rosa, R. A. (2023). Do NSAIDs used prior to standard inferior alveolar nerve blocks improve the analgesia of mandibular molars with irreversible pulpitis? An umbrella review. Clinical Oral Investigations, 27, 1885–1897.
6. Silva, I. A., Agnol Junior, C. A. D., Weissheimer, T., Só, M. V. R., & Rosa, R. A. (2023). Pharmacological management of anxiety on pain occurrence during root canal treatment: A systematic review. European Endodontic Journal, 8, 105-113.
7. Weissheimer, T., Só, B. B., Pradebon, M. C., Figueiredo, J. A. P., Martins, M. D., & Só, M. V. R. (2022). Head and neck radiotherapy effects on the dental pulp vitality and response to sensitivity tests: A systematic review with meta-analysis. International Endodontic Journal, 55, 563-578.Rossetti, B. R., Lemos, A. F., Só, B. B., Weissheimer, T., Martins, M. D., & Só, M. V. R. (2022). Effects of estrogen deficiency on the progression of apical periodontitis: A systematic review of preclinical studies. Archives of Oral Biology, 142, 1-10.
8. Rossetti, B. R., Lemos, A. F., Só, B. B., Weissheimer, T., Martins, M. D., & Só, M. V. R. (2022). Effects of estrogen deficiency on the progression of apical periodontitis: A systematic review of preclinical studies. Archives of Oral Biology, 142, 1-10.
9. Weissheimer, T., Silva, E. J. N. L., Pinto, K. P., Só, G. B., Rosa, R. A., & Só, M. V. R. (2021). Do orthodontic tooth movements induce pulp necrosis? A systematic review. International Endodontic Journal, 54, 1246-1262.
10. De Bem, I. A., De Oliveira, R. A., Weissheimer, T., Bier, C. A. S., Só, M. V. R., & Rosa, R. A. (2020). Effect of ultrasonic activation of endodontic sealers on intratubular penetration and bond strength to root dentin. Journal of Endodontics, 46, 1302-1308.

Theodoro Weissheimer, DDS, MS, PhD

Education

Training

Appointments