Evidence map›Paper›PMID 30565215›Full record

ArticleInternational dental journal2019

Three key factors influencing the bacterial contamination of dental unit waterlines: a 6-year survey from 2012 to 2017.

Xue-Yue Ji, Chun-Nan Fei, Ying Zhang, Jun Liu, He Liu, Jia Song

Abstract read
In one paragraph

Article in International dental journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 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

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

23 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Initial waterline contamination byMicrobiology spectrum · 2024
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  20. Prevention and Control ofPathogens (Basel, Switzerland) · 2020
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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

6 authors.

Xue-Yue JiDepartment of Infectious Disease, Tianjin Centers for Disease Control and Prevention, Tianjin, China.ORCID http://orcid.org/0000-0002-5439-4047
Chun-Nan FeiDepartment of Infectious Disease, Tianjin Centers for Disease Control and Prevention, Tianjin, China.
Ying ZhangDepartment of Infectious Disease, Tianjin Centers for Disease Control and Prevention, Tianjin, China.
Jun LiuDepartment of Infectious Disease, Tianjin Centers for Disease Control and Prevention, Tianjin, China.
He LiuDepartment of Infectious Disease, Tianjin Centers for Disease Control and Prevention, Tianjin, China.
Jia SongDepartment of Infectious Disease, Tianjin Centers for Disease Control and Prevention, Tianjin, China.

Funding

Science and Technology Fund of Tianjin Health and Family Planning Commission 2014KZ043Technology Fund of Tianjin Centers for Disease Control and Prevention CDCKY1302
6 · The paper itself

Abstract

backgroundThe contaminated output water from dental unit waterlines (DUWLs) is a potential risk to both patients and dental personnel who are frequently exposed to this water or aerosols.

aimThe purpose was to evaluate the contamination level and prevalence of bacteria in the output water of DUWLs, and to identify key factors to provide technical support for formulating relevant policies.

methodsWe developed a special sampling connector designed for collecting dental handpiece output water and a measurement device to assess retraction of a dental chair unit (DCU). Output water from dental handpieces and air/water syringes were collected as representative of DUWLs. Water samples were tested with reference to China's national standard.

findingsFrom 2012 to 2017, 318 DCUs were randomly selected from 64 hospitals in Tianjin, China. Of these DCUs, 78.93% had no disinfection to prevent DUWL contamination. Three-hundred and forty-three (56.14%) samples complied with the guidelines on DUWL output water. The highest concentration of bacteria was 1.8 × 10

conclusionThere was a high rate of contamination in DUWLs. This highlights the need to develop national standards. There is a need to disinfect the DUWLs periodically and use a cleaner source of water; more attention should be paid to the efficacy of DCU anti-retraction valves.

Indexed as

Equipment ContaminationWater MicrobiologyChinaColony Count, MicrobialDental EquipmentHumansSurveys and Questionnairesair/water syringebacteriadental handpieceDental unit waterlinesretractionwater microbiology

Identifiers

PMID30565215
PMCPMC9379084

What OpenQuestion holds

Textmetadata
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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.