title: [Accidental extrusion of calcium hydroxide-based pastes into periapical lesions].
abstract: Calcium hydroxide is a widely used material in endodontic treatment due to its high alkalinity and antimicrobial properties. It is thought to create a favourable environment for periradicular repair and healing, and to stimulate hard tissue formation. The aim of the present retrospective study was to evaluate the effect of accidental and voluminous overextensions of calcium hydroxide pastes into periapical lesions and tissues on the prognosis of periapical healing. It was seen that calcium hydroxide overextensions did not disfavour healing, none of the endodontic treatments failed but healing was delayed in the majority of cases and in a number of cases extrusion induced immediate flare-ups. Therefore the deliberate extrusion of calcium hydroxide into periapical tissues is not advocated.
authors.affiliation: Universiteit Gent Vakgroep Tandheelkunde Département de Dentisterie Opératoire et d'Endodontologie UZ Gent-De Pintelaan 185, B-9000 Gand.
authors.forename: An
authors.initials: A
authors.lastname: De Witte
authors.forename: Mieke
authors.initials: M
authors.lastname: De Bruyne
authors.forename: Roeland
authors.initials: R
authors.lastname: De Moor
mesh_terms: D000293:Adolescent; D000328:Adult; D002126:Calcium Hydroxide / Q000009:adverse effects*; D002648:Child; D005119:Extravasation of Diagnostic and Therapeutic Materials / Q000150:complications*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010483:Periapical Diseases / Q000150:complications* / Q000503:physiopathology; D010486:Periapical Tissue / Q000187:drug effects; D012189:Retrospective Studies; D012387:Root Canal Filling Materials / Q000009:adverse effects*; D014945:Wound Healing / Q000187:drug effects*
chemical_list: D012387:Root Canal Filling Materials; D002126:Calcium Hydroxide