Evidence map›Paper›PMID 27918743›Full record

ArticleMedicina oral, patologia oral y cirugia bucal2017

Could formaldehyde induce mutagenic and cytotoxic effects in buccal epithelial cells during anatomy classes?

D-C Lorenzoni, L-P Pinheiro, H-S Nascimento, C-S Menegardo, R-G Silva, W-G Bautz, J-F Henriques, K-L Almeida-Coburn, L-N da Gama-de-Souza

Open access · diamondAbstract read
In one paragraph

Article in Medicina oral, patologia oral y cirugia bucal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

5 citing papers in PubMed, 15 citations in OpenAlex.

  1. Observational
  2. E-Cigarette effects on oral health: A molecular perspective.Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association · 2025
    Review
  3. Article
  4. Genomic Instability in Exfoliated Buccal Cells among Cement Warehouse Workers.The international journal of occupational and environmental medicine · 2020
    Article
  5. 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

9 authors at 3 institutions in 1 country.

D-C LorenzoniDepartment of Orthodontics, Bauru Dental School, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo, 17012-901, Brazil. dclorenzoni@yahoo.com.br.
L-P Pinheiro
H-S Nascimento
C-S Menegardo
R-G Silva
W-G Bautz
J-F Henriques
K-L Almeida-Coburn
L-N da Gama-de-Souza
Universidade Federal do Espírito Santo · BRUniversidade de São Paulo · BRUniversidade Sagrado Coração · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDue to increased formaldehyde exposure, carcinogenic to humans, several researches have been studying the potential toxicity and the safe levels for human beings. The aim of this study was to investigate mutagenicity and cytotoxicity in buccal epithelial exfoliated cells (BEC) of students subjected to formaldehyde (FA) during anatomy classes. MATERIAL AND

methodsBEC were collected periodically from 17 volunteers of undergraduate programs, who had participated in practical anatomy classes, before and after FA exposure. Cells were stained according to Feulgen method and then micronucleus test was applied. A total of 1,500 cells were assessed per individual in this study for the micronucleus frequency and other parameters of cytotoxicity.

resultsThere was statistically significant increase in number of micronucleated BEC after FA exposure (after 1 month p=.034 and after 3.5 months p=.017). However, FA exposure caused no significant increase in other nuclear alterations closely related to cytotoxicity (p≥.05).

conclusionsFA induced mutagenicity during anatomy classes. Cell death increased, but it was not statistically significant. Efforts have to be made to improve air quality and reduce exposures during anatomy classes.

Indexed as

AnatomyCytotoxinsEpithelial CellsFemaleFixativesFormaldehydeHumansMaleMouth MucosaMutagenesisYoung AdultCytotoxinsFixativesFormaldehyde

Identifiers

PMID27918743
PMCPMC5217497
OpenAlexW2557593674

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.