Evidence map›Paper›PMID 34027572›Full record

ArticleInternational journal of implant dentistry2021

The effect of nano-hydroxyapatite/chitosan scaffolds on rat calvarial defects for bone regeneration.

Emmanouil Chatzipetros, Spyros Damaskos, Konstantinos I Tosios, Panos Christopoulos, Catherine Donta, Eleni-Marina Kalogirou, Zafeiroula Yfanti, Dimitris Tsiourvas, Aggeliki Papavasiliou, Kostas Tsiklakis

Abstract 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 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

26 citing papers in PubMed.

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  13. Comparison of different hydroxyapatite composites for bone tissue repair:Iranian journal of basic medical sciences · 2024
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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

10 authors.

Emmanouil ChatzipetrosDepartment of Oral Diagnosis and Radiology, Faculty of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, 11527, Goudi, Athens, Greece. e.chatzipetros@gmail.com.
Spyros DamaskosDepartment of Oral Diagnosis and Radiology, Faculty of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, 11527, Goudi, Athens, Greece.
Konstantinos I TosiosDepartment of Oral Medicine and Pathology, Faculty of Dentistry, National and Kapodistrian University of Athens, Athens, Greece.
Panos ChristopoulosDepartment of Oral and Maxillofacial Surgery, Faculty of Dentistry, National and Kapodistrian University of Athens, Athens, Greece.
Catherine DontaDepartment of Oral Diagnosis and Radiology, Faculty of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, 11527, Goudi, Athens, Greece.
Eleni-Marina KalogirouDepartment of Oral Medicine and Pathology, Faculty of Dentistry, National and Kapodistrian University of Athens, Athens, Greece.
Zafeiroula YfantiDepartment of Oral Diagnosis and Radiology, Faculty of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, 11527, Goudi, Athens, Greece.
Dimitris TsiourvasInstitute of Nanoscience and Nanotechnology, National Centre for Scientific Research "Demokritos", Aghia Paraskevi, Attiki, Greece.
Aggeliki PapavasiliouInstitute of Nanoscience and Nanotechnology, National Centre for Scientific Research "Demokritos", Aghia Paraskevi, Attiki, Greece.
Kostas TsiklakisDepartment of Oral Diagnosis and Radiology, Faculty of Dentistry, National and Kapodistrian University of Athens, 2 Thivon Str, 11527, Goudi, Athens, Greece.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study aims at determining the biological effect of 75/25 w/w nano-hydroxyapatite/chitosan (nHAp/CS) scaffolds on bone regeneration, in terms of fraction of bone regeneration (FBR), total number of osteocytes (Ost), and osteocyte cell density (CD), as well as its biodegradability.

methodsTwo critical-size defects (CSDs) were bilaterally trephined in the parietal bone of 36 adult Sprague-Dawley rats (18 males and 18 females); the left remained empty (group A), while the right CSD was filled with nHAp/CS scaffold (group B). Two female rats died postoperatively. Twelve, 11, and 11 rats were euthanized at 2, 4, and 8 weeks post-surgery, respectively. Subsequently, 34 specimens were resected containing both CSDs. Histological and histomorphometric analyses were performed to determine the FBR, calculated as [the sum of areas of newly formed bone in lateral and central regions of interest (ROIs)]/area of the original defect, as well as the Ost and the CD (Ost/mm

resultsThe FBR of group B increased significantly from 2nd to 8th week compared to group A (P = 0.009). Both the mean CD and the mean Ost values of group B increased compared to group A (P = 0.004 and P < 0.05 respectively). Moreover, the mean value of BmA decreased from 2nd to 8th week (P = 0.001).

conclusionsBased on histological and histomorphometric results, we support that 75/25 w/w nHAp/CS scaffolds provide an effective space for new bone formation.

Indexed as

ChitosanDurapatiteAnimalsBone RegenerationFemaleMaleOsteogenesisRatsRats, Sprague-DawleyChitosanDurapatiteBone regenerationChitosanHydroxyapatitesRat calvaria

Identifiers

PMID34027572
PMCPMC8141479

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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.