Evidence map›Paper›PMID 30003056›Full record

ArticleKorean journal of orthodontics2018

Comparison of treatment effects between four premolar extraction and total arch distalization using the modified C-palatal plate.

Sung Youn Jo, Mohamed Bayome, Justyn Park, Hee Jin Lim, Yoon-Ah Kook, Seong Ho Han

Registry-linked trialAbstract read
In one paragraph

Article in Korean journal of orthodontics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04814173 (Evaluation of the Efficacy of One-jaw Versus Tow-jaw Mechanics for Mini-implants Anchored Total-maxillary-arch-distalization in the Treatment of Class II Division 1 Malocclusion A Randomized Controlled Trial), which is not on this map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
–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.

NCT04814173 nacompletednot on this mapstarted 2022, after this paper: background citation

Evaluation of the Efficacy of One-jaw Versus Tow-jaw Mechanics for Mini-implants Anchored Total-maxillary-arch-distalization in the Treatment of Class II Division 1 Malocclusion A Randomized Controlled Trial

TypeinterventionalSponsorHama UniversityRan2022 to 2022Enrolled48ConditionsMalocclusion, Class II Division 1 MalocclusionArmsOne-jaw mechanic total maxillary arch distalization, Two-jaw mechanic total maxillary arch distalization, en-mass retraction
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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  8. Efficacy of mandibular molar distalization by clear aligner treatment.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Sung Youn JoPrivate Practice, Seoul, Korea.ORCID https://orcid.org/0000-0002-7039-2578
Mohamed BayomeDepartment of Dentistry, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Justyn ParkSchool of Dentistry, University California San Francisco, San Francisco, CA, USA.
Hee Jin LimDepartment of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Yoon-Ah KookDepartment of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Seong Ho HanDivision of Orthodontics, Department of Dentistry, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.ORCID https://orcid.org/0000-0001-5613-1657

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe purpose of this study was to compare the skeletal, dental, and soft-tissue treatment effects of nonextraction therapy using the modified C-palatal plate (MCPP) to those of premolar extraction (PE) treatment in adult patients with Class II malocclusion.

methodsPretreatment and posttreatment lateral cephalographs of 40 adult patients with Class II malocclusion were retrospectively analyzed. The MCPP group comprised 20 patients treated with total arch distalization of the maxillary arch while the PE group comprised 20 patients treated with four PE. Fifty-eight linear and angular measurements were analyzed to assess the changes before and after treatment. Descriptive statistics, paired

resultsThe MCPP group presented 3.4 mm of retraction, 1.0 mm of extrusion, and 7.3° lingual inclination of the maxillary central incisor. In comparison, the PE group displayed greater amount of maxillary central incisor retraction and retroclination, mandibular incisor retraction, and upper lip retraction (5.3 mm, 14.8°, 5.1 mm, and 2.0 mm, respectively;

conclusionsThese findings suggest the MCPP is an effective distalization appliance in the maxillary arch. The amount of incisor retraction, however, was significantly higher in the PE group. Therefore, four PE may be recommended when greater improvement of incisor position and soft-tissue profile is required.

Indexed as

Adult treatmentExtraction vs. nonextractionModified C-palatal plateOrthodontic implant

Identifiers

PMID30003056
PMCPMC6041454

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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.