Abstract
We used often various attachment about the superstructure of Subperiosteal Implant. We had Reagel experienced hinge attachment, blockmatic attachment, mini presomachic attachment, IC attachment, soft attachment and so on. They have both merits and demerits, but they don't have special problems with all symptoms of examples till now.
But they have an only problem which their periods are various. Example some long period is then years or some short period is two years.
Therefore I think they are needed to more work.The thoughts of superstructure have flexible type, inflexible type, removable type, unremovable type,occlusal type. We used the fix type and the inflexible type before, but now we use usually the fix type and the inflexible type. At this time we'll report of using the regulex attachment of the fix type and the inflexible type with these two symptom of examples which used their type.
