Influence of salivary secretory immunoglobulin A level on the pain experienced by orthodontic patients.

1 Department of Orthodontics and Pediatrics, Juiz de Fora Federal University, Juiz de Fora, Brazil 2 Department of Parasitology, Microbiology and Immunology, Juiz de Fora Federal University, Juiz de Fora, Brazil 3 Department of Food and Toxicology, Juiz de Fora Federal University, Juiz de Fora, Brazil 4 Department of Parasitology, Microbiology and Immunology, Juiz de Fora Federal University, Juiz de Fora, Brazil