Cross-sectional evaluation of the presence of gingival recession in individuals with cleft lip and palate - Almeida, Ana Lúcia Pompéia Fraga de; Madeira, Ludmila Cardoso; Freitas, Kelly Cristina de; Greghi, Sebastião Luiz Aguiar; Pegoraro, Luiz Fernando (Journal of Periodontology, 2007)