Evidence map›Paper›PMID 39986983›Full record

ArticleInternational dental journal2025

Evaluation of the Root and Canal Morphology of Maxillary and Mandibular Premolars in an Emirati Sub-Population.

Hanadi Almehrzi, Summaya Khawajah, Nouf Alharbi, Rashid El Abed, Mohamed Jamal

Abstract read
In one paragraph

Article in International dental journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
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5citing papers in PubMed, 1 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

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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

5 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

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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

5 authors.

Hanadi AlmehrziHamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Health Care City, Dubai, United Arab Emirates; Emirates Health Services, Dubai, United Arab Emirates.
Summaya KhawajahHamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Health Care City, Dubai, United Arab Emirates; Emirates Health Services, Dubai, United Arab Emirates.
Nouf AlharbiDepartment of Dentistry Zayed Sports City, Healthpoint Hospital (Mubadala health), Abu Dhabi, United Arab Emirates.
Rashid El AbedHamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Health Care City, Dubai, United Arab Emirates.
Mohamed JamalHamdan Bin Mohammed College of Dental Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai Health Care City, Dubai, United Arab Emirates. Electronic address: mohamed.jamal@mbru.ac.ae.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

INTRODUCTION AND

aimsNumerous studies have reported that maxillary and mandibular premolars have a complex internal canal configuration, which can vary according to the race and geographic origin. Therefore, a thorough knowledge and understanding of the root and canal morphology is crucial to ensure successful outcome of root canal treatment. This retrospective study aims to describe the root and canal morphology of the maxillary and mandibular first and second premolars in the Emirati subpopulation using cone-beam computed tomography (CBCT).

methodsThis retrospective study analyzed 360 CBCT scans that were randomly selected and met the inclusion and exclusion criteria. The scans were reviewed by two evaluators who recorded the number and shape of roots and categorized the canal morphology based on the Vertucci classification (VC). The data were analyzed statistically using SPSS software.

resultsA total of 1795 premolars were examined. Most maxillary first premolars had one root (52.1%), while only 0.9% had three roots. Type I VC was the most common canal configuration (53.8%). The majority of maxillary second premolars had one root (91%). Type I VC was the most common canal configuration (47.4%), followed by type III (32.4%). Most of the mandibular first and second premolars had one root (77.3% and 97%, respectively), and Type I VC was the most common canal configuration (70.4% and 94.9%, respectively). C-shaped canals were most observed in the mandibular first premolars, with a prevalence of 22.7%.

conclusionOur results showed great variations in the canal configuration. In addition, C-shaped canals in mandibular first premolar is relatively high (22.7%). CLINICAL RELEVANCE: Premolars in Emirati population exhibit complex anatomy. Therefore, clinicians might consider advanced diagnostic and treatment techniques when treating premolars in this population.

Indexed as

BicuspidDental Pulp CavityTooth RootAdolescentAdultCone-Beam Computed TomographyFemaleHumansMaleMandibleMaxillaMiddle AgedRetrospective StudiesUnited Arab EmiratesYoung AdultAnatomyCBCTC-ShapeEmirati populationMandibularMaxillaryPremolarsUAE

Identifiers

PMID39986983
PMCPMC12142761

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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.