Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 1,381

The DOI matches its Crossref record; 23 of the 23 references it cites were found in a registry or an index.

Influence of infection at the time of root filling on the outcome of endodontic treatment of teeth with apical periodontitis

SJÖGREN, U., FIGDOR, D., PERSSON, S., SUNDQVIST, G.·1997·International Endodontic Journal

Abstract

Summary: This study investigated the role of infection on the prognosis of endodontic therapy by following‐up teeth that had had their canals cleaned and obturated during a single appointment. The root canals of 55 single‐rooted teeth with apical periodontitis were thoroughly instrumented and irrigated with sodium hypochlorite solution. Using advanced anaerobic bacteriological techniques, post–instrumentation samples were taken and the teeth were then root‐filled during the same appointment. All teeth were initially infected; after instrumentation low numbers of bacteria were detected in 22 of 55 root canals. Periapical healing was followed up for 5 years. Complete periapical healing occurred in 94% of cases that yielded a negative culture. Where the samples were positive prior to root filling, the success rate of treatment was just 68%– a statistically significant difference. Further investigation of three failures revealed the presence of Actinomyces species in each case; no other specific bacteria were implicated in failure cases. These findings emphasize the importance of completely eliminating bacteria from the root canal system before obturation. This objective cannot be reliably achieved in a one‐visit treatment because it is not possible to eradicate all infection from the root canal without the support of an inter–appointment antimicrobial dressing.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1046/j.1365-2591.1997.00092.x

Cites

23 of 23 references verified0 citation errors · 0 not checkable

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 23 references

Cited by

See all 1,381

Metadata

Authors
SJÖGREN, U., FIGDOR, D., PERSSON, S., & SUNDQVIST, G.
Venue
International Endodontic Journal
Publisher
Wiley
Published
1997-09
Volume
30
Issue
5
Pages
297-306
ISSN
  • 0143-2885 (ISSN-L)
  • 1365-2591
OpenAlex
W1974560842
Cited by
1,381
References
23
FWCI
26.59
Type
journal article
Language
en
Open access
closed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Influence of infection at the time of root filling on the outcome of endodontic treatment of teeth with apical periodontitis. https://app.cochat.ai/papers/10.1046/j.1365-2591.1997.00092.x
The paper
SJÖGREN, U., FIGDOR, D., PERSSON, S., & SUNDQVIST, G. (1997). Influence of infection at the time of root filling on the outcome of endodontic treatment of teeth with apical periodontitis. International Endodontic Journal. https://doi.org/10.1046/j.1365-2591.1997.00092.x

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.