RESUMO
Projeto da OMS/FDI foi analisado na Assembléia Geral em Seul e voltará para a comissão que estuda o assunto na entidade. Especialistas brasileiros são favoráveis ao uso do material e opinam sobre a questão
Assuntos
Amálgama DentárioRESUMO
This study evaluated 30 gallium alloy (Gallium alloy GF) and 31 amalgam (Dispersalloy) restorations over a period of 8 months in both Class I and Class II cavity preparations in 28 human subjects. At baseline, all gallium alloy and amalgam restorations were considered acceptable (Alfa) in terms of caries, anatomic form, marginal adaptation, surface texture, and bulk fracture. Postoperative sensitivy was reported in 67 percent of the gallium alloy restorations and in 29 percent of the amalgam restorations. At 8 months, 61 percent of the gallium alloy restorations were rated Beta for marginal adaptation, and all restorations exhibited tarnish and corrosion. With a few exceptions, the amalgam restorations were rated Alfa for those criteria. Three gallium alloy restorations had to be replaced during the evaluation period because of severe postoperative sensitivy and 39 percent of gallium restorations still presented some sensitivy at 8 months. Additional problems exhibited by gallium restorations were tooth fractures, tooth cracks, and marginal whitening
Assuntos
Humanos , Amálgama Dentário/química , Gálio/química , Restauração Dentária Permanente/efeitos adversos , Ligas Dentárias/química , Materiais Dentários/química , Preparo da Cavidade Dentária/métodosRESUMO
Os autores discorrem sobre a segurança no uso do mercúrio nas restauraçöes de amálgama. As eventuais reaçöes alérgicas ou ocorrências tóxicas a esse metal säo apresentadas, bem como os procedimentos para a sua higienizaçäo