Evidence map›Paper›PMID 41169958›Full record

ArticleCase reports in dentistry2025

Biomechanically Valid Clear Aligner Therapy for Premolar Extraction Case: A Case Report and Literature Review.

Yimeng Xu, Bingguo Kou, Xiayu Zhang, Yirong Hu, Yue Hui, Siyu Lan, Zexu Gu

Abstract readCase Reports
PubMed Full text at PMC Publisher
In one paragraph

Article in Case reports in dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

7 authors.

Yimeng XuState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.ORCID https://orcid.org/0000-0002-1052-9421
Bingguo KouState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.ORCID https://orcid.org/0009-0006-6576-9824
Xiayu ZhangState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.ORCID https://orcid.org/0009-0001-9603-6985
Yirong HuState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.ORCID https://orcid.org/0009-0008-2716-7640
Yue HuiState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.ORCID https://orcid.org/0009-0005-4187-6003
Siyu LanState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.ORCID https://orcid.org/0009-0001-0584-8129
Zexu GuState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China.ORCID https://orcid.org/0009-0002-8840-567X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This case report details the successful orthodontic management of an adult female with skeletal Class II malocclusion, protrusive facial profile with perioral muscle tension, and mild crowding using clear aligners following extraction of four first premolars. To address the inherent challenges of "roller-coaster effects," a biomechanically appropriate protocol was implemented including rational case analysis and selection, as well as attachment design, anchorage control, overcorrection strategy, and tooth movement pattern. The treatment process successfully avoided refinements and the "roller-coaster effects," accomplishing the entire therapeutic plan with the initial series of clear aligners. This study demonstrates the individualized biomechanical protocols to bridge discrepancies between virtual treatment predictions and real-world therapeutic efficacy, particularly in premolar extraction cases where uncontrolled tipping threatens predictability.

Indexed as

clear alignersevidence-based orthodonticsextraction treatmenttooth movement protocol

Identifiers

PMID41169958
PMCPMC12571535

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.