Evidence map›Paper›PMID 32670901›Full record

ReviewJournal of International Society of Preventive & Community Dentistry

Decoding the Perplexing Mystery of Para-Chloroaniline Formation: A Systematic Review.

Mohd Sibghatullah Khatib, Bilal Ameer, Nikita Ajit Mannur, Amith Madi Ramalingaiahsetty, Sayed Mateen Peerzade, Amrut Bambawale

Abstract readReview
In one paragraph

Review in Journal of International Society of Preventive & Community Dentistry. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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

2 citing papers in PubMed.

  1. Article
  2. Review
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

6 authors.

Mohd Sibghatullah KhatibDepartment of Conservative Dentistry and Endodontics, Dr. Syamala Reddy Dental College Hospital and Research Centre, Bangalore, India.
Bilal AmeerSJM Dental College and Hospital, Chitradurga, India.
Nikita Ajit MannurSJM Dental College and Hospital, Chitradurga, India.
Amith Madi RamalingaiahsettySJM Dental College and Hospital, Chitradurga, India.
Sayed Mateen PeerzadeKLE Viswanath Katti Institute of Dental Sciences, Belgaum, Karnataka, India.
Amrut BambawaleApollo White Dental Clinic, Mumbai, Maharashtra, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe objective of this article was to understand and decode the mystery of the formation of para-chloroaniline (PCA). The ingredient of the brown precipitate after mixing sodium hypochlorite (NaOCl) and chlorhexidine gluconate (CHX) is still in debate. MATERIALS AND

methodsVarious studies adopt a different methodology to substantiate that it may contain PCA, which is a carcinogenic agent. The purpose of this systematic review is to evaluate the relationship between PCA and brown precipitate. Two reviewers independently conducted a comprehensive literature search. The MEDLINE, Embase, Cochrane, and PubMed databases were searched. In addition, the bibliographies were manually searched. There was no disagreement between the two reviewers. This review was reported and conducted in step with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

resultsOf 233 articles, only 13 articles met the inclusion criteria. Available scientific evidence was more supportive that the brown precipitate form after mixing NaOCl and CHX may form para-chloroamide moiety rather than free PCA, and PCA may be the by-product of CHX degradation.

conclusionOn the basis of the current evidence and data extracted from the various databases, it can be concluded that the mixture of sodium hypochlorite and chlorhexidine does not form PCA, and PCA may be the by-product of high concentrated chlorhexidine. Further studies are required to substantiate the evidence.

Indexed as

Chlorhexidinepara-chloroanilinesodium hypochloritespectroscopy

Identifiers

PMID32670901
PMCPMC7340001

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.