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Post‐impression Preparation to Prevent Fracture to Isolated Abutments with Extensive Bone Loss in Master Casts
Author(s) -
Sato Yuuji,
Tsuga Kazuhiro
Publication year - 1998
Publication title -
journal of prosthodontics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.902
H-Index - 60
eISSN - 1532-849X
pISSN - 1059-941X
DOI - 10.1111/j.1532-849x.1998.tb00204.x
Subject(s) - impression , dentistry , orthodontics , fracture (geology) , materials science , medicine , computer science , composite material , world wide web
A post‐impression preparation technique can be used for preventing fracture of isolated abutments in master casts with extensive bone loss. This technique involves using a sharp knife to trim the impression obliquely at the clinical cervical line, creating a 1‐ to 2‐mm‐width bevel, followed by the insertion of a dowel pin into the abutment for reinforcement. This technique enlarges the abutments' diameter at the clinical cervical line and increases the resistance to breakage without altering the shape of critical areas.