Evidence map›Paper›PMID 30022270›Full record

ArticleClinical oral investigations2019

Changes in periapical status, quality of root fillings and estimated endodontic treatment need in a similar urban German population 20 years later.

Thomas Connert, M Truckenmüller, A ElAyouti, F Eggmann, G Krastl, C Löst, R Weiger

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Article in Clinical oral investigations, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  8. Artificial Intelligence in Dentistry: A Narrative Review of Diagnostic and Therapeutic Applications.Medical science monitor : international medical journal of experimental and clinical research · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Thomas ConnertDepartment of Periodontology, Endodontology and Cariology, University Center for Dental Medicine, University of Basel, Hebelstrasse 3, 4056, Basel, Switzerland. thomas.connert@unibas.ch.ORCID http://orcid.org/0000-0003-4461-5835
M TruckenmüllerPrivate practice, Stuttgart, Germany.
A ElAyoutiDepartment of Operative Dentistry, Periodontology, Endodontology and Pediatric Dentistry, School of Dental Medicine, Eberhard-Karls University, Tübingen, Germany.
F EggmannDepartment of Periodontology, Endodontology and Cariology, University Center for Dental Medicine, University of Basel, Hebelstrasse 3, 4056, Basel, Switzerland.
G KrastlDepartment of Operative Dentistry and Periodontology, University of Würzburg, Würzburg, Germany.
C LöstDepartment of Operative Dentistry, Periodontology, Endodontology and Pediatric Dentistry, School of Dental Medicine, Eberhard-Karls University, Tübingen, Germany.
R WeigerDepartment of Periodontology, Endodontology and Cariology, University Center for Dental Medicine, University of Basel, Hebelstrasse 3, 4056, Basel, Switzerland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe study aimed at assessing, as primary objective, the periapical status and quality of root fillings, and, as secondary objective, the endodontic treatment need of a German urban population in a cross-sectional study 20 years after the first one. MATERIALS AND

methodsClinical and radiographic data of 353 patients were evaluated. Descriptive and regression analyses were performed and the endodontic treatment need was calculated. Results were compared with data from the year 1993.

resultsA total of 9269 teeth were examined (26.2 teeth per patient; 1993, 24.4), of which 337 teeth were root filled (3.6%; 1993, 2.7%). Prevalence of apical periodontitis in root-filled teeth was 34% (1993, 61%). Quality of root fillings was adequate in 117 cases (35%; 1993, 14%). Minimum endodontic treatment need was estimated with 1.6% (1993, 2.3%), including teeth with clinical symptoms. Considering symptomless teeth with apical periodontitis and poor quality of root filling, the treatment need was 2.9% (1993, 3.7%). Regression analysis identified quality of root filling as a significant factor for periapical health (p = 0.01, odds ratio 3.4×, 95% CI 1.9-6.3×), likewise the type of instrumentation. Teeth treated with rotary files had a significantly better outcome (p = 0.02, odds ratio 2.0×, 95% CI 1.1-3.7×).

conclusionsQuality of root fillings and the periapical status have improved over the last 20 years in Germany. However, there is still a need for an increase in quality of root canal treatment.

Indexed as

Root Canal TherapyAdolescentAdultAgedAged, 80 and overChildCross-Sectional StudiesFemaleGermanyHumansMaleMiddle AgedPeriapical PeriodontitisPrevalenceTooth, NonvitalUrban PopulationApical periodontitisEndodonticsEndodontic treatment needEpidemiologyPeriapical statusRepeated cross-sectional study

Identifiers

PMID30022270

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.