Shades of knowledge

awareness among Brazilian dentists on non- and microinvasive approaches for tooth discoloration

Authors

  • Giovanni Aguirra Giovanni Aguirra Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística.
  • Karin Landmayer Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística.
  • Bruna de Oliveira Iatarola Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística.
  • Maria Paula Novaes Camargo Manna Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística.
  • Raquel Shimizu Mori Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística.
  • Flávia Pardo Salata Nahsan Universidade Federal do Sergipe. Faculdade de Odontologia.
  • Heitor Marques Honório niversidade de São Paulo. Faculdade de Odontologia de Bauru. Departamento de Odontopediatria, Ortodontia e Saúde Coletiva.
  • Luciana Fávaro Francisconi-dos-Rios Universidade de São Paulo. Faculdade de Odontologia. Departamento de Dentística.

DOI:

https://doi.org/10.1590/1678-7765-2025-0589

Keywords:

Tooth discoloration, Tooth bleaching, Resin infiltration, Enamel microabrasion, Dental education

Abstract

Tooth discoloration is a frequent concern among dental patients. While many professionals and patients choose veneers or other invasive solutions, Minimal Intervention Dentistry (MID) recommends non- and microinvasive approaches to preserve tooth structure. Objective  To assess Brazilian dentists’ knowledge and practices on tooth discoloration and how education and professional profile may influence them. Methodology  A cross-sectional observational study was conducted with 384 volunteer dentists via an online series of questions on causes, diagnosis, treatment (per tissue removal), and professional-patient relationship. Answers were scored (1=correct/affirmative, 0=incorrect/negative). Descriptive and multivariate regression analyses were performed (α=0.05). Results  Most respondents were female, aged 20-49, from the Southeast region. Correct answer rates: 69.9% for causes, 69.4% for diagnosis, 48.8% for treatment, 83.6% for professional-patient relationship, 56.4% overall. Graduation from public universities and holding graduate training in Operative or Pediatric Dentistry or Orofacial Harmonization were associated with better outcomes. Conclusion  Knowledge of non- and microinvasive approaches to tooth discoloration remains limited. Broader educational efforts are needed, especially among specific groups of professionals who showed lower performance.

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Published

2026-02-16

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Section

Original Articles

How to Cite

Giovanni Aguirra, G. A., Landmayer, K., Iatarola, B. de O., Manna, M. P. N. C., Mori, R. S., Nahsan, F. P. S., Honório, H. M., & Francisconi-dos-Rios, L. F. (2026). Shades of knowledge: awareness among Brazilian dentists on non- and microinvasive approaches for tooth discoloration. Journal of Applied Oral Science, 34, e20250589. https://doi.org/10.1590/1678-7765-2025-0589