Evidence map›Paper›PMID 31414271›Full record

ArticleClinical oral investigations2020

A new standardized critical size bone defect model in the pig forehead for comparative testing of bone regeneration materials.

Tobias Moest, Karl Andreas Schlegel, Marco Kesting, Matthias Fenner, Rainer Lutz, Daniele Machado Beck, Emeka Nkenke, Cornelius von Wilmowsky

Abstract read
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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 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
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  3. 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

8 authors.

Tobias MoestDepartment of Oral and Maxillofacial Surgery, University of Erlangen-Nürnberg, Glueckstraße 11, 91054, Erlangen, Germany. tobias.moest@uk-erlangen.de.
Karl Andreas SchlegelDepartment of Oral and Maxillofacial Surgery, University of Erlangen-Nürnberg, Glueckstraße 11, 91054, Erlangen, Germany.
Marco KestingDepartment of Oral and Maxillofacial Surgery, University of Erlangen-Nürnberg, Glueckstraße 11, 91054, Erlangen, Germany.
Matthias FennerDepartment of Oral and Maxillofacial Surgery, University of Erlangen-Nürnberg, Glueckstraße 11, 91054, Erlangen, Germany.
Rainer LutzDepartment of Oral and Maxillofacial Surgery, University of Erlangen-Nürnberg, Glueckstraße 11, 91054, Erlangen, Germany.
Daniele Machado BeckDepartment of Oral and Maxillofacial Surgery, University of Erlangen-Nürnberg, Glueckstraße 11, 91054, Erlangen, Germany.
Emeka NkenkeDepartment of Oral and Maxillofacial Surgery, Medical University of Vienna, Vienna, Austria.
Cornelius von WilmowskyDepartment of Oral and Maxillofacial Surgery, University of Erlangen-Nürnberg, Glueckstraße 11, 91054, Erlangen, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe preclinical study aimed to establish a standardized preclinical model to investigate osseous graft consolidation in defect configurations of limited regenerative capacity. MATERIAL AND

methodsCritical size defects (CSD) were prepared and titanium tubes inserted for defect separation from local bone in the forehead area of 18 pigs. Defects were filled with demineralized bovine bone mineral (DBBM) or served as empty controls and were covered with a resorbable collagen membrane (CM) or left untreated. Six randomly selected pigs were sacrificed after 4, 8 and 12 weeks. Specimens were histologically and histomorphometrically analysed focusing on newly formed bone (NFB), demineralized bovine bone mineral (DBBM) and soft tissue (ST) proportions.

resultsFour weeks after defect preparation, no statistically significant difference concerning NFB quantity could be detected within the groups. Defects covered with the CM showed lower amounts of DBBM. After 6 and 12 weeks, defects augmented with DBBM in combination with a CM (8 weeks: 43.12 ± 4.31; 12 weeks: 43.05 ± 3.01) showed a statistically significant higher NFB rate compared to empty control defects covered with 8 weeks: 7.66 ± 0.59; 12 weeks or without a CM; 8 weeks: 8.62 ± 2.66; 12 weeks: 18.40 ± 2.40. CM application showed no significant impact on osseous defect regeneration or soft tissue formation. Superior NFB could be detected for basal aspect for several evaluation time points.

conclusionsThe modification of CSD with titanium tubes represents a suitable model to imitate a one-wall defect regeneration situation. CLINICAL RELEVANCE: The established model represents a promising method to evaluate graft consolidation in one-wall defect configuration.

Indexed as

Bone RegenerationBone SubstitutesAnimalsCattleCollagenForeheadMineralsSkullSwineTitaniumBone SubstitutesCollagenMineralsTitaniumAnimal modelBone substitutesCritical size defectDemineralized bovine bone mineral

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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.