Evidence map›Paper›PMID 40481043›Full record

ArticleScientific reports2025

Impact of spacers and thermocycling on porosity and gaps in class II endodontic temporary restorations evaluated by microcomputed tomography.

Fahda N Algahtani, Manal Alkadi, Hiba R Talic, Sarah S AlShalawi, Lujain M Alqarni, Reem M Barakat, Rasha Haridy, Sara M ElKhateeb, Rahaf A Almohareb

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2025. 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

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

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

9 authors.

Fahda N AlgahtaniClinical Dental Science Department, College of Dentistry, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia. dr.fahda@hotmail.com.ORCID https://orcid.org/0000-0001-7626-1635
Manal AlkadiDental Clinics Department, King Abdullah bin Abdulaziz University Hospital, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Hiba R TalicDental Clinics Department, King Abdullah bin Abdulaziz University Hospital, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Sarah S AlShalawiCollege of Dentistry, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Lujain M AlqarniCollege of Dentistry, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Reem M BarakatDental Clinics Department, King Abdullah bin Abdulaziz University Hospital, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Rasha HaridyClinical Dental Science Department, College of Dentistry, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Sara M ElKhateebDepartment of Basic Dental Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
Rahaf A AlmoharebClinical Dental Science Department, College of Dentistry, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To use microcomputed tomography (micro-CT) to evaluate the porosity (%) of 3 M Pink Cavit (PC) and Riva Light Cure resin-reinforced glass ionomer (Riva RRGI) dental restoration when used over two types of spacers in Class II endodontically accessed premolars and investigate the effect of thermocycling on the porosity of the two biomaterials. Forty-four single-rooted human premolars were endodontically accessed, and a class II mesial box was prepared. Four experimental groups (n = 9) were defined based on the type of spacer and restoration used: PC and cotton pellet, PC and polytetrafluoroethylene (PTFE), Riva RRGI and cotton pellet, and Riva RRGI and PTFE. In two control groups (n = 4), PC or Riva RRGI was used alone. All the groups underwent thermocycling. The porosity was measured before and after thermocycling using micro-ct. The results were analyzed using t-tests and one-way ANOVA with significance set at P < 0.05. Both PC and Riva RRGI exhibited inherent porosity, with porosity increasing after thermocycling (P = 0.015 and P < 0.001, respectively). Cotton pellets increased the percentage of the gap between the restoration and dental walls with both restoration materials before and after thermocycling. Thermocycling increased the porosity of both PC and Riva RRGI restorations. In Class II endodontic access cavities, spacer choice influenced gap formation, with PTFE proving to be a better alternative to cotton pellets.

Indexed as

Dental Restoration, PermanentX-Ray MicrotomographyBicuspidGlass Ionomer CementsHumansMaterials TestingPorosityGlass Ionomer CementsCavitCotton pelletGapPorosityResin-reinforced glass ionomerSpacerTemporary restorationVoids

Identifiers

PMID40481043
PMCPMC12144243

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.