によって Dentist Mais 11年前.
403
Undercut
Implant-retained fixed dentures are used in dental treatments to address various issues related to undercuts, which are irregularities in tooth walls that obstruct the proper seating of dental prostheses.
開く
Undercut Undercut Shape Images Generalized denture fibroma Localized Causes Aging Changes Tuberosity with pneumenization of maxillary sinus air cells….etc Genial tubercle prominence ... Interior oblique ridge prominence ... Post Extraction Problems Uncompressed socket …etc Bone Disease Bone tumor….etc Bone exostosis ... Soft Tissue Disease Soft tissue tumor….etc Fibromatosis ... Developmental Mandibular tori….etc Undercut Management The use of implant retained fixed dentures Without flanges ... Surgical Correction Bone shaping….etc Soft tissue corrections….etc Relief For one of the bilateral undercuts ... Utilize It Rotational path of insertion ... Unilateral ... If less than 180 degree ... Leave It Reduce distolingual length ... Outside denture area ... Defintion
( \Un´dur-kUt\ n (1859) ) 3: any irregularity in the wall of a prepared tooth that prevents the withdrawal or seating of a wax pattern or casting 2: the contour of a cross-sectional portion of a residual
ridge or dental arch that prevents the insertion of a dental prosthesis 1: the portion of the surface of an object that is below the height of contour in relationship to the path of placement
