Is there any specific reason you would choose a hader bar over a simpler clip type of attachment such as a locator?
This is a great question, as both studs and bars have advantages and disadvantages.
Very simply, a bar will provide more prosthesis stability (ideal when residual ridge is flat) and splinting of abutments (to protect a week root or implant which is why you see them more in the maxillae). It is also ideal when there are non-parallel abutments. However, a bar requires more patient dexterity, better patient hygiene, requires more space, you can not engage undercuts, and depending on the design of the bar, it could compromise tongue space. A bar is usually more expensive. I agree that it is more effective to utilize digital CAD-CAM technology or laser technology with skills like Danny's.
A stud (like a Locator or ball) allows for independent servicing, less patient hygiene, and is more cost effective.
AJ, Rhein does not have Hader bar attachments. They have other excellent options, such as a square bar and rider, unlike the cylindrical Hader bar. I only bring this up so that you don't try and service a Rhein "hader-style" bar with Hader attachments.
I also wanted to say that we know have a
brand new Hader Alignment Housing that is available and is compatible with both our Hader and Attachment International's EDS-Hader system.
