Evidence map›Paper›PMID 38224419›Full record

ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2025

Functionality testing of an innovative biomechanically optimized and surface-modified orthodontic mini-screw-a comparative study.

Kathrin Duske, Billan Turan, Cornelia Prinz, Jan Hendrik Lenz, Franka Stahl, Mareike Warkentin

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Bioinformation · 2026
    Article
  2. 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

6 authors.

Kathrin DuskeDepartment of Orthodontics, University Dental School, Rostock University Medical Center, Strempelstr. 13, 18057, Rostock, Germany. kathrin.duske@med.uni-rostock.de.ORCID http://orcid.org/0000-0003-2401-6827
Billan TuranDepartment of Orthodontics, University Dental School, Rostock University Medical Center, Strempelstr. 13, 18057, Rostock, Germany.
Cornelia PrinzDOT GmbH, Rostock, Germany.
Jan Hendrik LenzDepartment of Oral and Maxillofacial Surgery, Rostock University Medical Center, Rostock, Germany.ORCID http://orcid.org/0000-0002-8838-1164
Franka StahlDepartment of Orthodontics, University Dental School, Rostock University Medical Center, Strempelstr. 13, 18057, Rostock, Germany.ORCID http://orcid.org/0000-0002-9636-6087
Mareike WarkentinWorking Group for Implant Materials, Faculty of Mechanical Engineering and Marine Technologies, University of Rostock, Rostock, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe failure rate of orthodontic mini-screws depends strongly on primary stability and, thus, on insertion torque. Further improvement regarding the failure rate might be achieved by modifying the surface coating. Therefore, the aim of the study was to investigate the stability of a newly designed and surface-modified orthodontic mini-screw in beagle dogs.

methodsNewly designed mini-screws coated either with DOTIZE® or DOTIZE®-copper (DOT GmbH, Rostock, Germany; each: n = 24) were inserted in the mandibles of eight beagle dogs for a duration of 8 months. Insertion and removal torque were measured. These data were compared to values generated by using the artificial bone material Sawbones® (Sawbones Europe AB, Malmö, Sweden). Experiments with and without torque limitation (each: n = 5) were run. The bone-to-implant contact rate and the amount of bone between the threads were examined. Statistical significance was set at P < 0.05.

resultsThe success rates of the in vivo study reached high levels with 95.3% for the DOTIZE-coated and 90.5% for the DOTIZE-copper-coated screws, whereas the insertion and removal torque did not differ between the coatings. During insertion, a torque limitation of 20 Ncm was necessary to ensure that the recommended limit was not exceeded. The insertion in Sawbones without torque limitation revealed a significantly higher torque compared to torque-limited insertion (18.2 ± 1.3 Ncm, 23.6 ± 1.3 Ncm). Bending occurred (n = 5) in the thread-free part of the mini-screw.

conclusionsSurface coating might be able to improve the performance of orthodontic mini-screws. The study showed high success rates and stable mini-screws until the end of observation. Further investigations are necessary.

Indexed as

Bone ScrewsCoated Materials, BiocompatibleMandibleOrthodontic Anchorage ProceduresOrthodontic Appliance DesignAnimalsDogsEquipment Failure AnalysisMaterials TestingMiniaturizationSurface PropertiesTorqueCoated Materials, BiocompatibleBone screwsDental implantsMaterials testingOrthodontic anchorage proceduresSurface coating

Identifiers

PMID38224419

What OpenQuestion holds

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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.