Evidence map›Paper›PMID 33963988›Full record

ArticleOral radiology2022

Root canal morphology and symmetry of mandibular second premolars using cone-beam computed tomography.

Faisal T Alghamdi, Wafaa A Khalil

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Article in Oral radiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
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14citing papers in PubMed, 3 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

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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

14 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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4 · The record

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5 · Who and what money

Authors and funding

2 authors.

Faisal T AlghamdiDepartment of Oral Biology, Faculty of Dentistry, King Abdulaziz University, 80209, Jeddah, 21589, Saudi Arabia. falghamdi@kau.edu.sa.ORCID 0000-0003-2086-0772
Wafaa A KhalilDepartment of Endodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.ORCID 0000-0002-2924-141X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe current study aims to investigate the morphology and symmetry of root canals of mandibular second premolar teeth via Cone-Beam Computed Tomography (CBCT) among a sample of the Saudi population.

methodsA total of 1200 CBCT images were examined in the study. The number of roots in the mandibular second premolars was identified, and canal configurations were classified according to Vertucci classification. Bilateral symmetry and association between gender and number of roots and root canal configuration were investigated using a chi-square test was utilized for data analysis and p value was set at 0.05 for significance.

resultsOf the total 2400 Mandibular second premolars, 98.33% were single rooted and 1.67% were double rooted. The prevalence of double roots in females on the right side was significantly higher than that on the left side (p = 0.017), but the opposite was found among males. Only Type I and II canal configurations showed significant differences regarding gender and sides. 98.0% of teeth showed the symmetrical number of roots in both genders. The symmetry in canal configuration was 96.7% in males and 97.3% in females and 99.1% was Type I in both sides, 0.5% Type III, and 0.3% Type IV in both sides.

conclusionsThe root morphology of mandibular second premolars in the Saudi population demonstrated a high degree of variability. The vast majority of mandibular premolars have a single root with one canal and a low prevalence of two rooted teeth. Contralateral mandibular second premolars exhibited great symmetry of roots and root canal configuration.

Indexed as

Dental Pulp CavityTooth RootBicuspidCone-Beam Computed TomographyFemaleHumansMalePrevalenceCone-beam computed tomographyMandibular second premolarRoot canal morphologySaudi population

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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.