Evidence map›Paper›PMID 31802242›Full record

ArticleClinical oral investigations2020

Metal ion quantification in the saliva of patients with lingual arch appliances using silver solder, laser, or TIG welding.

Helena Reis de Souza Schacher, Luciane Macedo de Menezes

Open access · greenAbstract read
PubMed Publisher
In one paragraph

Article in Clinical oral investigations, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

4 citing papers in PubMed, 9 citations in OpenAlex.

  1. Review
  2. [Latest Research Findings on Health Management Based on Saliva Testing].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2022
    Review
  3. Article
  4. 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

2 authors at 1 institution in 1 country.

Helena Reis de Souza SchacherDental Program, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil.ORCID http://orcid.org/0000-0002-8062-8871
Luciane Macedo de MenezesDental Program, School of Health and Life Sciences, Pontifícia Universidade Católica do Rio Grande do Sul, 6681 Ipiranga Avenue, Building n.6, Porto Alegre, RS, 90619-900, Brazil. luciane.menezes@pucrs.br.
Pontifícia Universidade Católica do Rio Grande do Sul · BR

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 001
6 · The paper itself

Abstract

objectivesQuantify metal ion release in the saliva, considering that orthodontic appliances with soldered or welded parts may suffer corrosion and release metal ions into saliva, which can trigger adverse effects, such as hypersensitivity.

methodsSixty-four patients were distributed into four groups: G1 (control), G2 (silver-soldered lingual arch), G3 (laser-welded lingual arch), and G4 (TIG-welded lingual arch). Saliva samples were collected at four different points and were analyzed for ion release with ICP-MS.

resultsFor Cr, Fe, Cu, and Sn ion concentrations among groups, there was no difference along collections and no statistically significant difference throughout collections for any group (P > 0.05, with release values between 3.3 and 4.2 μg/L for Cr, 201 and 314.8 μg/L for Fe, 23.1 and 40.7 μg/L for Cu, and 13 and 27.7 μg/L for Sn). For Ni, G4 showed an increased ion release at T2 (14.3 μg/L) and T4 (34.5 μg/L), values with an interaction effect (P < 0.001) comparing the groups and the points of collection. For Zn, Ag, and Cd ions there was no difference along the points in time (P > 0.05). For Zn ions, there was a statistic difference from G4 to G1 and G2 (P = 0.007 and P = 0.019), with median values ranging from 741.7 to 963.4 μg/L for G4, and for Ag ions, from G4 to G2 and G3 (P < 0.001 for both), with lower medians for G4 (3.7-6.1 μg/L). For Cd ions there was a statistic difference from T1 to T4 in all groups (P = 0.016), with lower values for T4.

conclusionsDifferent welding procedures may affect salivary ion concentrations. For most ions there was no significant increase comparing welding and comparing throughout points in the same group. Although TIG welding presented greater Ni ion release, this possibly occurred due to a bigger corrosion of the welded. CLINICAL RELEVANCE: Determining the amount of released metal ions from the use of orthodontic appliances is relevant to ensure the safest method for patients. Welding procedures affect salivary ion concentrations, when comparing ion release triggered by one of the most common devices used for preventive/interceptive orthodontic treatments.

Indexed as

Dental MaterialsSilverWeldingCorrosionHumansIonsMaterials TestingSalivaDental MaterialsIonsSilverLingual archOrthodonticsSolderingWelding

Identifiers

PMID31802242
OpenAlexW2993414555

What OpenQuestion holds

Textmetadata
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.