TMD diagnosis: Sensitivity and specificity of the Fonseca Anamnestic Index
Gabriela Stasiak, Lucas Machado Maracci, Vitória de Oliveira Chami, Duziene Denardini Pereira, Fernanda Tomazoni, Tatiana Bernardon Silva, Vilmar Antônio Ferrazzo, Mariana Marquezan
Abstract
OBJECTIVE: To verify whether the Fonseca Anamnestic Index (FAI) has adequate sensitivity and specificity to be used in the diagnosis of temporomandibular disorder (TMD). METHODS: Two hundred-sixty-five participants with symptoms of TMDs were assessed through the FAI and through the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) and then classified as sick or non-sick. The sensitivity, specificity, and predictive values of the FAI in relation to the RDC/TMD were calculated using the STATA 14.0 software. RESULTS: Most of the patients were female, white, without a steady job, and the average age was 37.57 years. The FAI showed high sensitivity (97.21%) but obtained a low specificity (26.00%). The positive and negative predictive values were 84.96% and 68.42%, respectively. CONCLUSION: The FAI is very sensitive in identifying patients who actually have TMD but not very specific in identifying non-TMD patients, being indicated only for initial screening of patients.