Data showed a higher number of Inadequacy A for restorations with the additional technique for marginal seal ( Group @ ) : @ of @ total ( @ % ) at @ months ; @ of @ total ( @ % ) at @ months ; @ of @ total ( @ % ) at @ months ; @ of @ total ( @ % ) at @ months ; @ of @ total ( @ % ) at @ months and @ of @ total ( @ % ) at @ months .