Foreign Body‐Type Reaction following Crown Cementation

Abstract

1. Hazards of the indirect impression techniques for crown fabrication are discussed. 2. A foreign body reaction caused by retained cotton fibers is substantiated. 3. Since the gingival retraction cord is a possible and likely source, placing the cord and choice of instruments is important.

Diagnosis, prognosis and decision‐making in the treatment of combined periodontal‐endodontic lesions

“…Although endodontic and periodontal diseases are primarily associated with the presence of microorganisms, some treatment failures may be explained by the presence of certain foreign substances in situ . These include substances such as dentin and cementum chips (83, 200), amalgam (61, 104, 200), root canal filling materials (61, 97, 104, 200), cellulose fibers from absorbent paper points (53, 103, 104), gingival retraction cords (57), leguminous foods (125), and calculus‐like deposits (72). A foreign‐body response may occur to any of these substances and the clinical reaction may be either acute or chronic.…”

Identification of cellulose fibers in oral biopsies

“…Mercerizatioo, a method used in textile and fabric industry for certain commercial improvements in the cotton, results in loss of the characteristic lumen in microscopic sections. Generally, the mercerized cotton iumeti is fractured, irregular or very small (5).…”

“…Apart from occasional reports of pulse granuloma, resulting from implantation of leguminous foods (4), marginal periodontitis caused by fragments of gingival retraction cord (5) and, cotton swab left during a previous operation (6), literature is scanty witli respect to vegetable foreign body reaction in the oral cavity.…”

Interaction between endodontics and periodontics

“…Although endodontic and periodontal diseases are primarily associated with the presence of microorganisms, the presence of certain foreign substances in situ may explain some treatment failures. Possible culprits include substances such as dentin and cementum chips , amalgam , root‐canal filling materials , cellulose fibers from absorbent paper points , gingival retraction cords , leguminous foods and calculus‐like deposits . A foreign‐body response may occur to any of these substances and the clinical reaction may be either acute or chronic.…”