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Model Cast Dentures with Attachments

A precision attachment is a precision-machined male and female (key and lock) housing that connects a removable partial denture to fixed bridgework

The female part of the attachment is soldered to fixed crowns or bridgework the male part is attached to the partial denture. The male is machined by the manufacturer to fit the female with such precision that any male out of the box will fit any female with an exact degree of accuracy. All of the precision attachments in a partial denture are positioned so that they are exactly parallel to each other.

What are the Advantages of Precision Attachment Dentures?

Precision attachment partial dentures are the very best restorations where fixed restorations are contraindicated. There are several key advantages of this type of restoration:

  1. Cosmetic Appearance
  2. Maintainable Periodontal Health
  3. Longevity of Abutment Teeth
  4. Patient Comfort
  5. Questionable Teeth can be saved in a way that does not affect case
  6. Longevity if they are lost in the future.
  7. Natural Tooth and/or Implant Abutments can Be Used
  8. Precision Attachment Partial Dentures Can Be Adapted to Compensate for Future Changes in the Mouth

There are many different kinds of attachments that will avoid the need for unsightly clasps, and confer the highest degree of patient comfort.

How Does a Precision Partial Stay In Place?

Even though there are no locking mechanisms, a good precision attachment partial denture will not dislodge during normal function. The reason the partial denture does not continually fall out is because it is surveyed in two directions so that the path of insertion is different from the pull of the muscles and the action of the tongue and gravity. Although the partial cannot be dislodged during function, it can move in a vertical direction slightly to release the forces instead of passing along these forces to the abutment teeth.