Association between maxillary sinus pathologies and healthy teeth

Gina D. Roque-Torres, Laura Ricardina Ramirez-Sotelo, Sergio Lins de Azevedo Vaz, Solange Maria de Almeida de Bóscolo, Frab Norberto Bóscolo

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Introduction: The proximity of the roots to the maxillary sinus can create a variety of risks. Objective: To evaluate the relationship between the roots of healthy teeth and the maxillary sinus, as well as the occurrence of sinus pathologies. Methods: Three radiologists analyzed 109 cone beam computed tomography (CBCT) images. The Kappa test was used to assess the intra- and inter-rater agreement. The chi-squared test and prevalence ratio were used to test the hypothesis that roots of healthy teeth in the maxillary sinus favored the occurrence of sinus pathologies (p = 0.01). Results: Intra- and inter-rater agreement ranged from good to excellent. The chi-squared test demonstrated a statistically significant difference (p = 0.006) between the tooth roots in diseased maxillary sinuses (6.09%) and those in normal sinuses (3.43%). The prevalence ratio test showed a statistically significant higher prevalence of tooth roots in diseased sinuses than in normal sinuses (p < 0.0001). Roots in the maxillary sinus were 1.82 times more associated with diseased sinuses. Conclusion: Dental roots in the maxillary sinus are almost twice as likely to be associated with diseased sinuses than normal sinuses. Healthy teeth whose roots are inside the maxillary sinus may induce an inflammatory response in the sinus membrane. It is suspected that dental procedures may exacerbate the condition.

Original languageEnglish
Pages (from-to)33-38
Number of pages6
JournalBrazilian Journal of Otorhinolaryngology
Issue number1
StatePublished - 1 Jan 2016

Bibliographical note

Publisher Copyright:
© 2015 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.


  • Cone beam computed tomography
  • Dental root
  • Maxillary sinus
  • Molar tooth
  • Premolar tooth


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