Changes in preschool children’s OHRQoL after treatment of dental caries: responsiveness of the B-ECOHIS - Abanto, Jenny; Paiva, Saul Martins; Sheiham, Aubrey; Tsakos, Georgios; Mendes, Fausto Medeiros; Cordeschi, Thais; Vidigal, Evelyn Alvarez; Bönecker, Marcelo (International Journal of Paediatric Dentistry, 2015)