Evidence map›Paper›PMID 33889353›Full record

ArticleDental research journal

Is there a change in the mandibular cortical shape index in panoramic radiographs over time? A longitudinal retrospective study.

Ahmed Al-Dam, Yassir Haydar, Ashkan Rashad

Open access · goldAbstract read
In one paragraph

Article in Dental research journal. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 34% of its field
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

3 citing papers in PubMed, 4 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

Ahmed Al-DamDepartment of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Yassir HaydarPrivate Practice Heine-Haydar, Gifhorn, Germany.
Ashkan RashadDepartment of Oral and Maxillofacial Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Universität Hamburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA longitudinal study design was conducted to assess the mandibular cortical shape index (CI) in panoramic radiographs retrospectively. An association between age and a deterioration of different radiological parameters on panoramic radiographs was stated in cross-sectional studies. As longitudinal studies are rare, this one is designed to assess radiological changes over time. MATERIALS AND

methodsIn this longitudinal study, The archive of the dentomaxillofacial radiology department was searched for panoramic radiographs of patients who have two radiographs with a time lapse of at least 15 years between both. The radiographs were then examined and the CI was categorized into three categories: normal, mild, and severely eroded. The following factors were examined to determine if they had an effect on possible changes of the CI using the Chi-square test: The time period between both radiographs, the gender and the age of the subjects when both radiographs were made also compared using the Kolmogorov-Smirnov test.

resultsNinety radiographs met the inclusion criteria. The mean age, when the 1

conclusionIn this longitudinally designed study, a deterioration of the CI over time when assessing the nonstandardized panoramic radiographs could be confirmed. This study shows that 68.9% of the patients had CI deterioration of at least one category over the average time of 17.96 years. This is the first study to quantify the CI deterioration over time to our knowledge.

Indexed as

Bone densityfacial bonesmandibleosteoporosispanoramic radiography

Identifiers

PMID33889353
PMCPMC8045519
OpenAlexW3110815361

What OpenQuestion holds

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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.