Objective: The main objective of this study was to investigate the frequenc
y of oral manifestations in children with acquired immunodeficiency syndrom
e. It also attempted to correlate the presence of lesions with the patient'
s degree of immunosuppression, as measured by the T4/T8 ratio. Method and m
aterials: Oral examinations were performed in 51 children with acquired imm
unodeficiency syndrome for a e-year period. A questionnaire used in this in
vestigation was based on the children's classification proposed by the Cent
ers for Disease Control in 1987. The children's T4/T8 ratios were obtained
from their medical files. Results: Pseudomembranous candidiasis was the mos
t common lesion, found in 21.57% of the children. Salivary gland disease wa
s present in 19.61% of patients. Erythematous candidiasis was observed in 5
.88%, and linear gingival erythema and oral hairy leukoplakia were both obs
erved in 1.96% of children. Children with a T4/T8 ratio < 0.5 were more pro
ne to development of pseudomembranous candidiasis. Conclusion: Pseudomembra
nous candidiasis was the most common type of oral lesion in human immunodef
iciency virus-positive children with acquired immunodeficiency syndrome. Th
ere was a relationship between the frequency of oral manifestations and the
patient's T4/T8 ratio.