Evidence map›Paper›PMID 32293310›Full record

ArticleBMC medical imaging2020

Cone beam computed tomographic analysis of the spatial limitation during mandibular arch distalization.

Chia-Ling Chen, Chia-Hui Chen, Chin-Yun Pan, Hong-Po Chang, Ping-Ho Chen, Yu-Chuan Tseng

Open access · goldAbstract read
In one paragraph

Article in BMC medical imaging, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-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

7 citing papers in PubMed, 15 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 2 institutions in 1 country.

Chia-Ling ChenSchool of Dentistry and Graduate Program of Dental Science, College of Dental Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.
Chia-Hui ChenDepartment of Medical Imaging and Radiological Science, Central Taiwan, University of Science and Technology, Taichung, Taiwan.
Chin-Yun PanSchool of Dentistry and Graduate Program of Dental Science, College of Dental Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.
Hong-Po ChangSchool of Dentistry and Graduate Program of Dental Science, College of Dental Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.
Ping-Ho ChenSchool of Dentistry and Graduate Program of Dental Science, College of Dental Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan.
Yu-Chuan TsengSchool of Dentistry and Graduate Program of Dental Science, College of Dental Medicine, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung, 80708, Taiwan. tsengyc@kmu.edu.tw.
Kaohsiung Medical University · TWKaohsiung Medical University Chung-Ho Memorial Hospital · TW

Funding

Kaohsiung Medical University Chung-Ho Memorial Hospital KMUH106-6M54
6 · The paper itself

Abstract

backgroundIn the literature, attempts are seldom made to quantify spatial limitation during mandibular arch distalization. This study aimed to investigate the spatial limitations associated with cortical contact with the mandibular second molar during mandibular arch distalization.

methodsThe study population included 67 individuals who had undergone cone beam computed tomography (CBCT) (34 male and 33 female; mean age: 23.9 ± 2.72 years). The total ridge width, alveolar housing width, and root width were measured to evaluate the buccolingual limit. The space distal to the molar root represented the mesiodistal limit. The influence of sex, right versus left side, root-contact condition, malocclusion category, and presence of wisdom teeth were evaluated.

resultsThe rate of cortical contact was 49.3% before any orthodontic movement. No significant differences were observed in the alveolar width according to sex (male vs female), side assessed (right vs left), wisdom teeth (present vs absent), or malocclusion category. The ridge width and the alveolar width were smaller in the contact group than in the non-contact group (P < 0.01). The group with wisdom teeth showed a larger available distalization distance, but a significant difference was observed only near the alveolar crest.

conclusionsBoth ridge width and available distalization distance were limiting factors for mandibular teeth distalization. For cases in which whole-arch distalization is planned, CBCT is recommended before treatment, especially for non-extraction treatment. This approach ensures safe and predictable tooth movement.

Indexed as

AdultCone-Beam Computed TomographyFemaleHumansMaleMalocclusionMandibleMolar, ThirdOrthodontics, CorrectiveRetrospective StudiesYoung AdultCone beam computed tomographyCortical contactMandibular arch distalization

Identifiers

PMID32293310
PMCPMC7161296
OpenAlexW3015195167

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.