Evidence map›Paper›PMID 34095987›Full record

ArticleInternational journal of implant dentistry2021

Osteoconductive properties of upside-down bilayer collagen membranes in rat calvarial defects.

Balazs Feher, Karol Ali Apaza Alccayhuaman, Franz Josef Strauss, Jung-Seok Lee, Stefan Tangl, Ulrike Kuchler, Reinhard Gruber

Open access · diamondAbstract read
In one paragraph

Article in International journal of implant dentistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.0field-weighted citation impact, top 6% 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

14 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
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  4. Active and Passive Mineralization of Bio-GideJournal of functional biomaterials · 2024
    Article
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  14. Layered scaffolds in periodontal regeneration.Journal of oral biology and craniofacial research
    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

7 authors at 4 institutions in 4 countries.

Balazs Feher *Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria.
Karol Ali Apaza Alccayhuaman *Department of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria.
Franz Josef StraussDepartment of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria.
Jung-Seok LeeDepartment of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, Korea.
Stefan TanglCore Facility Hard Tissue and Biomaterial Research, Karl Donath Laboratory, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.
Ulrike KuchlerDepartment of Oral Surgery, University Clinic of Dentistry, Medical University of Vienna, Vienna, Austria.
Reinhard GruberDepartment of Oral Biology, University Clinic of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria. reinhard.gruber@meduniwien.ac.at.
Medical University of Vienna · ATAustrian Cluster for Tissue Regeneration · ATUniversity of Chile · CLYonsei University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBilayer collagen membranes are routinely used in guided bone/tissue regeneration to serve as osteoconductive scaffolds and prevent the invasion of soft tissues. It is recommended to place the membranes with their dense layer towards the soft tissue and their porous layer towards the bony defect area. However, evidence supporting this recommendation is lacking. This study aimed to determine whether the alignment of bilayer collagen membranes has an effect on bone regeneration.

methodsIn two groups of ten male Sprague-Dawley rats each, a 5-mm calvarial defect was created. Thereafter, the defect was randomly covered with a bilayer, resorbable, pure type I and III collagen membrane placed either regularly or upside-down (i.e., dense layer towards bone defect). After 4 weeks of healing, micro-computed tomography (μCT), histology, and histomorphometry of the inner cylindrical region of interest (4.5 mm in diameter) were performed to assess new bone formation and the consolidation of the collagen membrane in the defect area.

resultsQuantitative μCT showed similar bone volume (median 8.0 mm

conclusionsOur data support the osteoconductive properties of collagen membranes and suggest that bone regeneration is facilitated regardless of membrane layer alignment.

Indexed as

Bone RegenerationSkullAnimalsCollagenMaleRatsRats, Sprague-DawleyX-Ray MicrotomographyCollagenCollagen membranesGBRGTRHistologyHistomorphometryMicro-computed tomographyPreclinical research

Identifiers

PMID34095987
PMCPMC8180471
OpenAlexW3172989015

What OpenQuestion holds

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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.