Evidence map›Paper›PMID 34850299›Full record

ArticleProgress in orthodontics2021

Impact of the prefabricated forms of NiTi archwires on orthodontic forces delivered to the mandibular dental arch.

Akihiko Tachi, Keisuke Tochigi, Naomi Saze, Kazuhito Arai

Open access · diamondAbstract read
In one paragraph

Article in Progress in orthodontics, 2021. 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
1.0field-weighted citation impact, top 28% 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

2 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. Orthodontic Wires: A 12-Year Bibliometric Study.Journal of International Society of Preventive & Community Dentistry
    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

4 authors at 1 institution in 1 country.

Akihiko TachiGraduate School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
Keisuke TochigiDepartment of Orthodontics, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.ORCID https://orcid.org/0000-0001-7884-5415
Naomi SazeDepartment of Orthodontics, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.ORCID https://orcid.org/0000-0002-9074-0891
Kazuhito AraiDepartment of Orthodontics, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9- 20 Fujimi, Chiyoda-ku, Tokyo, 102-8159, Japan. drarai@tky.ndu.ac.jp.ORCID http://orcid.org/0000-0002-6245-8709
Nippon Dental University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough preformed archwires with a variety of arch forms are currently commercially available, the effects of variation in the shape of these archwires on the orthodontic force at each tooth are not well understood. Therefore, we evaluated the forces delivered by various types of commercially available preformed nickel-titanium alloy (NiTi) archwires in a simulated mandibular dental arch.

methodsSixty-three types of 0.019 × 0.025-inch preformed NiTi archwires from 15 manufactures were selected for analysis. The intercanine width (ICW) and intermolar width (IMW) of each archwire were measured at the mean canine and first molar depths of 30 untreated subjects with normal occlusions. Each archwire was placed in a multi-sensor measurement system simulating the mandibular dental arch of subjects with normal occlusions, and orthodontic forces in the facial-lingual direction at the central incisors, canines, and first molars were measured. Correlations between the ICW, IMW, and ICW/IMW ratio of archwires and the delivered forces were analyzed. The archwires were classified into the following four groups according to the ICW and IMW: Control group, ICW and IMW are within the means ± standard deviations of the normal ranges; Ovoid group, narrow ICW and IMW; Tapered group, narrow ICW; and Square group, narrow IMW. The forces were compared among these groups for each tooth.

resultsSignificant correlations between the measured archwire width and force to each tooth were found, except between IMW and forces at the central incisors and canines. Significant differences in the forces were found among all groups, except between the Ovoid and Tapered groups at all teeth and between the Ovoid/Tapered and Control groups at the first molar. Significantly greater orthodontic forces in the facial direction were delivered at the central incisors by the archwires in the Ovoid and Tapered groups when compared with the archwires in the other groups.

conclusionThese findings suggest that there is a possible risk of a clinically significant level of unfavorable orthodontic force being delivered to the mandibular incisors in labial inclination when using a preformed archwire with an ICW that is narrower than the dental arch.

Indexed as

Dental ArchOrthodontic WiresDental AlloysHumansNickelTitaniumDental AlloysNickelTitaniumtitanium nickelideArch formArchwire classificationOrthodontic forcePreformed archwire

Identifiers

PMID34850299
PMCPMC8633350
OpenAlexW3215881670

What OpenQuestion holds

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LicenceCC BY
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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.