Periapical changes following root-canal treatment observed 20-27 years postoperatively.

Abstract:

AIM:The aim of the present study was to identify periapical changes 20-27 years after root-canal treatment. METHODOLOGY:The periapical condition of 265 roots filled by undergraduate students was evaluated in two series of intraoral radiographs taken 10-17 and 20-27 years after treatment. Roots (72) not recorded with a normal periapical situation on both occasions by two observers, were re-evaluated by other two examiners, separately and jointly. Final decisions about diagnoses were made by all four examiners. A strict definition was used for the identification of cases with an unfavourable outcome. RESULTS:Favourable outcomes were observed in 6.4% of the roots that had radiolucencies at the 10-17-year follow-up. Periapical radiolucencies after 20-27 years appeared in 1.5% of all other roots. The radiographic failure frequency for the total material was 4.9%. The percentage of cases with normal periapical findings at the final follow-up was 86.4%, whilst 8.7% were recorded with increased width of the apical periodontal space. Delayed healing owing to surplus root-filling material explained nearly all of the cases with favourable outcome assessed many years after treatment. CONCLUSIONS:Late periapical changes, with more successes than failures, were recorded when a 10-17-year follow-up period after root-canal treatment was extended for another 10 years.

journal_name

Int Endod J

authors

Molven O,Halse A,Fristad I,MacDonald-Jankowski D

doi

10.1046/j.1365-2591.2002.00568.x

keywords:

subject

Has Abstract

pub_date

2002-09-01 00:00:00

pages

784-90

issue

9

eissn

0143-2885

issn

1365-2591

journal_volume

35

pub_type

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