The milled surface as a precision attachment.
The creation of paralleled, milled surfaces in natural or restored abutment teeth, coupled with removable partial denture castings that have optimal contact with these preparations, results in a path of insertion and removal that is controlled in a manner similar to one using conventional precision attachments. Because the milled surfaces are primarily extracoronal, little if any, additional tooth reduction is required for adequate mouth preparation. Avoiding additional tooth reduction minimizes later abutment fracture. The great increase in stability and resistance to rotational movements, when combined with conventional posterior clasping, provides a reasonable alternative to the precision attachment in providing maximal esthetics for the partially edentulous patients.
Brudvik
James S
JS
Department of Prosthodontics, University of Washington School of Dentistry, Box 357452, Seattle, WA 989195, USA. brudvik@u.washington.edu
Shor
Alexander
A
D000044:Dental Abutments; D003735:Dental Casting Technique; D016734:Dental Clasps; D003779:Denture Design; D003834:Denture Precision Attachment; D003781:Denture Retention; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation; D019231:Tooth Preparation, Prosthodontic