Evidence map›Paper›PMID 36316597›Full record

ArticleInternational journal of implant dentistry2022

The allogeneic shell technique for alveolar ridge augmentation: a multicenter case series and experiences of more than 300 cases.

Peer W Kämmerer, Jochen Tunkel, Werner Götz, Robert Würdinger, Frank Kloss, Andreas Pabst

Open access · diamondAbstract readMulticenter Study
In one paragraph

Article in International journal of implant dentistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

11 citing papers in PubMed, 16 citations in OpenAlex.

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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

6 authors at 5 institutions in 1 country.

Peer W KämmererDepartment of Oral and Maxillofacial Surgery, University Medical Center Mainz, Augustusplatz 2, 55131, Mainz, Germany. peer.kaemmerer@unimedizin-mainz.de.ORCID 0000-0002-1671-3764
Jochen TunkelPrivate Practice for Oral Surgery and Periodontology, Königstraße 19, 32545, Bad Oeynhausen, Germany.
Werner GötzDepartment of Orthodontics, University Hospital Bonn, Welschnonnenstr. 17, 53111, Bonn, Germany.
Robert WürdingerPrivate Practice for Oral Surgery and Periodontology, Frankfurter Str. 6, 35037, Marburg, Germany.
Frank KlossPrivate Practice for Oral and Maxillofacial Surgery, Kärtnerstraße 62, 9900, Lienz, Austria.
Andreas PabstDepartment of Oral and Maxillofacial Surgery, Federal Armed Forces Hospital, Rübenacherstraße 170, 56072, Koblenz, Germany.
Bundeswehrzentralkrankenhaus Koblenz · DEJohannes Gutenberg University Mainz · DEKlinik Bad Oexen · DEPhilipps University of Marburg · DEUniversity Hospital Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAllogeneic cortical bone plates (CP) might be used for alveolar ridge augmentation as an alternative to autogenous grafts (AG) and bone substitutes (BS). We report about a multicenter case series and our experiences of more than 300 cases using CP and the shell technique for reconstruction of the alveolar process to illustrate surgical key steps, variations, and complication management.

methodsDifferent types of alveolar ridge defects were augmented using the shell technique via CP. The space between the CP and the alveolar bone was filled with either autogenous or allogeneic granules (AUG, ALG) or a mixture of both. Implants were placed after 4-6 months. Microscopic and histological assessments were performed. In addition, space filling using AUG, ALG and bovine BS was discussed.

resultsScanning electron microscopy demonstrated the compact cortical structure of CP and the porous structure of ALG allowing micro-vessel ingrowth and bone remodeling. Histological assessment demonstrated sufficient bone remodeling and graft resorption after 4-6 months. In total, 372 CP cases and 656 implants were included to data analysis. The mean follow-up period was about 3.5 years. Four implants failed, while all implant failures were caused by peri-implantitis. Next, 30 CP complications were seen, while in 26 CP complications implant placement was possible. CP rehydration, stable positioning by adjusting screws, smoothing of sharp edges, and a tension-free wound closure were identified as relevant success factors. Space filling using ALG and a mixture of AUG/ALG resulted in sufficient bone remodeling, graft resorption and stability of the augmented bone.

conclusionsCP and the shell technique is appropriate for alveolar ridge augmentation with adequate bone remodeling and low complication rates. Allografts can prevent donor site morbidity and therefore may decrease discomfort for the patient.

Indexed as

Alveolar Ridge AugmentationBone SubstitutesHematopoietic Stem Cell TransplantationAnimalsBone TransplantationCattleDental Implantation, EndosseousHumansBone SubstitutesAllograftAlveolar ridge augmentationCortical bone plateDonor site morbidityShell technique

Identifiers

PMID36316597
PMCPMC9622968
OpenAlexW4307744736

What OpenQuestion holds

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LicenceCC BY
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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.