A system where the patrix component is attached to the implant and the matrix is housed within the denture base.
The placement of a stud attachment is one of personal choice. The indications for its use are the same as for that of bars and magnets.
The size of the attachment is smaller than a bar and therefore less room is required in the denture base. This may be of great benefit in a case where interocclusal clearance is limited.
• The resilient ‘washers’ or ‘O’ rings perish with time and need to be replaced.
• They provide less retention than that of a bar.
The patrix is attached to the implant and the matrix is placed within the denture base either at the processing stage or by using a direct technique at the chairside.