Evidence map›Paper›PMID 41484878›Full record

ArticleBMC oral health2026

Analysis of the distribution and characteristics of supernumerary teeth in the pediatric population of Shanghai, China: a retrospective study.

Jingzhi Li, Yilun Xie, Furong Xie, Jun Pei, Jun Wang

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC oral health, 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

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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

5 authors.

Jingzhi Li *Department of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Yilun Xie *Department of Stomatology, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
Furong XieDepartment of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Jun PeiDepartment of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. submit1023@126.com.
Jun WangDepartment of Pediatric Dentistry, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. wangjun202@126.com.

Funding

National Natural Science Foundation of China 32000571Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine and College of Stomatology, Shanghai Jiao Tong University. KQYJXK2021
6 · The paper itself

Abstract

backgroundThe presence of supernumerary teeth (ST) may result in varying degrees of dentition problem. PURPOSE: The aims of this study were to investigate the distribution and characteristics of ST in children in Shanghai, analyze the factors that have adverse effects on dentition, and provide some reference for clinicians.

methodsA total of 309 patients (427 ST) who underwent cone-beam computed tomography (CBCT) were included in this study. The age and sex of the patients, and the characteristics of the ST, such as their number, distribution, direction and effect on adjacent teeth, were retrospectively collected.

resultsThe average age of the patients was 6.3 years, and the male to female ratio was 4.15:1. ST mostly occurred in the maxillary anterior region, with the majority of cases involving one tooth. The ratio of the number of ST impacted in bone to the number of erupted ST was 14.8. The palatal side of the alveolar bone (68%) and inverted (59.5%) were associated with the greatest proportions of ST in terms of location and direction, respectively. When located on the palatal side of the dentition and in an inverted orientation, ST have minimal influence on the eruption and position of the central incisors, whereas the buccolingual ST have the most complications.

conclusionThe impact of ST in different positions and directions on the eruption of adjacent permanent teeth varies. These findings may serve as reference information for clinical decision-making on the timing of tooth extraction.

Indexed as

Tooth, SupernumeraryAdolescentChildChild, PreschoolChinaCone-Beam Computed TomographyFemaleHumansMaleMaxillaRetrospective StudiesTooth, ImpactedChildrenCone-beam computed tomographyImpacted teethSupernumerary teeth

Identifiers

PMID41484878
PMCPMC12952126

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.