Evidence map›Paper›PMID 41727283›Full record

ArticleCase reports in dentistry2026

Bilateral Occurrence of Mandibular Permanent Second Molar With Four Roots: A Case Report and Literature Review.

Agnieszka Chamarczuk, Laurentia Schuster, Till Dammaschke, Mariusz Lipski

Abstract read
In one paragraph

Article in Case reports in dentistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Article
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

4 authors.

Agnieszka ChamarczukDepartment of Preclinical Conservative Dentistry and Preclinical Endodontics, Pomeranian Medical University in Szczecin, Szczecin, Poland, pum.edu.pl.ORCID https://orcid.org/0000-0002-6266-9792
Laurentia SchusterDepartment of Periodontology and Operative Dentistry, University of Münster, Münster, Germany, uni-muenster.de.ORCID https://orcid.org/0009-0006-7612-3148
Till DammaschkeDepartment of Periodontology and Operative Dentistry, University of Münster, Münster, Germany, uni-muenster.de.ORCID https://orcid.org/0000-0003-1276-0632
Mariusz LipskiDepartment of Preclinical Conservative Dentistry and Preclinical Endodontics, Pomeranian Medical University in Szczecin, Szczecin, Poland, pum.edu.pl.ORCID https://orcid.org/0000-0002-2567-3362

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Basic knowledge of tooth anatomy is essential for endodontic success. The most common configuration of the mandibular second molar is the presence of two roots. However, single-, three-, four-, and even five-rooted forms have also been reported in the literature. The purpose of this study is to present a clinical case of a mandibular second molar with four roots. Morphology was assessed using CBCT examination, which revealed that the patient has bilateral four-rooted second lower molars-an anomaly that, to our knowledge, is extremely rare in the literature. Awareness and careful diagnosis of such anomalies are crucial to ensure all canals are treated, improving clinical outcomes and preventing treatment failure.

Indexed as

anatomic variationcone-beam computed tomographymandiblemolartooth abnormalitiestooth root

Identifiers

PMID41727283
PMCPMC12916446

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Registered trials

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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.