Evidence map›Paper›PMID 40212099›Full record

ArticleJournal of oral biology and craniofacial research

Perspectives of laypeople towards the morphological characteristics of a youthful smile on frontal view: A computerized simulated photographic evaluation.

Marzieh Mazhari, Sanaz Zemanatkheiri, Mehrnaz Moradinejad

Abstract read
In one paragraph

Article in Journal of oral biology and craniofacial research. 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

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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

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

3 authors.

Marzieh MazhariDepartment of Orthodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Sanaz ZemanatkheiriDepartment of Dentistry, School of Dental, Ahvaz University of Medical Sciences, Ahvaz, Iran.
Mehrnaz MoradinejadDepartment of Orthodontics, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The desire for a youthful smile is not limited by age, as individuals seek it throughout their lifetime. Aging affects the components of a smile; accordingly, this study assessed the perspectives of laypeople towards the morphological traits of a youthful smile on the frontal view. In this psychometric study Results: A total of 195 laypersons participated in the study. The results revealed that a 2 mm reduction, 4 mm increase, and 4 mm reduction in incisor display would increase the age estimation (P-Value<0.001). Futher, 1 mm reduction, a 0.5 mm reduction, and 0.5 mm increase in vertical step would contribute to overestimation of the age (P-Value<0.001). Additionally, the smile arc's reversed, straight, and moderate convexity increased the age estimation (P-Value<0.001). Regarding buccal corridor size, 1- and 2-mm reduction plus 2-mm increase resulted in age estimates significantly older than the original image (P-Value<0.001). Conclusion: Perceptions of youthfulness are influenced by morphological traits such as incisor display, vertical step between central and lateral, smile arch form, and buccal corridor size.

Indexed as

Buccal corridorFrontal viewIncisor displaySmile archVertical stepYouthful smile

Identifiers

PMID40212099
PMCPMC11982457

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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.