Evidence map›Paper›PMID 41775797›Full record

ArticleScientific reports2026

Molar distalization and stability following maxillary anterior teeth alignment with class II elastics and a 10-day aligner protocol.

Badr Sultan Saif, Yu Tang, Wen-Qing Bu, Yi-Qiao Li, Ling-Ling Ji, Shao-Yi Du, Feng Pan, Yu-Cheng Guo

Abstract read
In one paragraph

Article in Scientific reports, 2026. 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. 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

8 authors.

Badr Sultan SaifClinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases and Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China.
Yu TangClinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases and Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China.
Wen-Qing BuClinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases and Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China.
Yi-Qiao LiClinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases and Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China.
Ling-Ling JiClinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases and Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China.
Shao-Yi DuNational Key Laboratory of Human-Machine Hybrid Augmented Intelligence, National Engineering Research Center for Visual Information and Applications, Institute of Artificial Intelligence and Robotics, Xi'an Jiaotong University, Xi'an, 710049, Shaanxi, China.
Feng PanEquator Dental Care, 13 Tangyan Road, Xi'an, 710075, Shaanxi, China. panf75@126.com.
Yu-Cheng GuoClinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases and Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, 710004, Shaanxi, China. xjtu-guoyucheng@163.com.

Funding

China Postdoctoral Science Foundation No. 2019M653664National Natural Science Foundation of China No. 81701869
6 · The paper itself

Abstract

This study compares the anticipated maxillary anterior teeth alignment and molar distal movement with the actual results. The molar stability after anterior teeth alignment has also been investigated. The sample consisted of 30 individuals. Three digital models were obtained using an intra-oral scanner before treatment (T0), after maxillary molar distalization (T1), and at the treatment end, before refinement (T2). The digital models were registered over the palatal rugae area. 120 maxillary molars were investigated for distal movement and anchorage loss. Also, 180 upper anterior teeth were evaluated for anterior teeth alignment. After maxillary molar distalization, the predicted distalization of maxillary molars significantly differed from the actual clinical values (P < 0.001) with a mean percentage accuracy of 75.3% (T0-T1). During T0-T2 stage, anterior teeth showed a significant difference between the two variables except for the labial movement of the lateral incisor (p = 0.056) and canine (p = 0.167). Also, lingual torque of the lateral incisor (p = 0.190). For anterior tooth alignment, the overall mean accuracy was 54.79%. At the treatment end before refinement, the average percentage of posterior anchorage loss was 34.02% and the average percentage accuracy of molar distalization decreased to 48.25% (T0-T2). While clear aligners are an effective modality for maxillary molar distalization in non-growing adults, their accuracy in achieving anterior tooth alignment is limited. Clinicians should account for significant posterior anchorage loss and anticipate challenges in achieving precise lingual movement of the anterior teeth during treatment planning.

Indexed as

Malocclusion, Angle Class IIMaxillaMolarTooth Movement TechniquesAdolescentAdultFemaleHumansIncisorMaleOrthodontic Anchorage ProceduresYoung AdultClear alignersDistalizationPosterior anchorage loss

Identifiers

PMID41775797
PMCPMC13065829

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

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 Socratic graph.