Evidence map›Paper›PMID 40011294›Full record

ArticleProgress in orthodontics2025

Orthodontically induced root resorption in endodontically treated and vital teeth: a cone beam computer tomographic study.

Ziang Liu, Yuqing Ouyang, Yiting Lou, Yineng Han, Mengting Lu, Mengfei Yu, Huiming Wang, Wanghui Ding

Abstract read
In one paragraph

Article in Progress in orthodontics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 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.

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, 1 synthesis or guideline pooled it.

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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

8 authors.

Ziang Liu *Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China.
Yuqing Ouyang *Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China.
Yiting LouStomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China.
Yineng HanStomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China.
Mengting LuStomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China.
Mengfei YuStomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China. yumengfei@zju.edu.cn.
Huiming WangStomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China. whmwhm@zju.edu.cn.
Wanghui DingStomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China. godson888@zju.edu.cn.

Funding

Clinical research project of Chinese Orthodontic Society COS-C2021-09The Research and Development Project of Stomatology Hospital Zhejiang University School of Medicine RD2022YFZD01Zhejiang Province Medical and Health Science and Technology Project 2024646675Zhejiang Provincial Public Welfare Research Program LTGY23H140007
6 · The paper itself

Abstract

backgroundOrthodontically induced root resorption (OIRR) is a common side effect of orthodontic treatment. This study compares the degree of OIRR between root-filled teeth (RFT) and vital pulp teeth (VPT), and analyzes relevant study variables.

methodsWe conducted a retrospective study on 69 patients who had undergone orthodontic treatment. Using Cone-beam computed tomography (CBCT), we measured changes of root length before and after treatment through a unique method involving three-dimensional (3D) image registration and superimposition. Factors related to the OIRR such as gender, type of treatment, tooth type, age, duration of treatment and distance of root movement were considered.

resultsThe sample included 55 females and 14 males aged 27.19 ± 6.08 years. On the basis that there was no significant difference in the root movement distance between RFT and VPT, RFT showed significantly less OIRR than VPT (P < 0.05). Gender did not significantly impact on OIRR for either RFT or VPT group (P > 0.05). In women specifically, RFT displayed less resorption than VPT (P < 0.05). For treatment type, extraction cases demonstrated a lower degree of OIRR in RFT than VPT (P < 0.05), and notable greater OIRR in with-extraction group compared to no-extractions group was found in RFT (P < 0.05), but not in VPT (P > 0.05). Tooth type did not yield significant differences in OIRR overall; however, upper teeth and premolars experienced lower resorption in RFT than in VPT (P < 0.05). Cases treated with fixed appliance had higher OIRR in both RFT and VPT than those with clear aligners (P < 0.05). Age did not correlate significantly with OIRR for either group (P > 0.05). And duration of treatment positively correlated with OIRR for both types (RFT: r = 0.5506, P < 0.0001; VPT: r = 0.4371, P = 0.0002), so did root movement distance (RFT: r = 0.2955, P = 0.0140; VPT: r = 0.2790, P = 0.0206).

conclusionsRFT exhibit significantly less OIRR than VPT after orthodontic treatment. Treatment type, appliance type, duration of treatment and root movement distance are significant factors influencing OIRR. Personalized orthodontic treatment plans and vigilant monitoring are crucial to mitigate OIRR risks.

Indexed as

Cone-Beam Computed TomographyOrthodontics, CorrectiveRoot ResorptionTooth, NonvitalAdolescentAdultFemaleHumansImaging, Three-DimensionalMaleRetrospective StudiesSex FactorsTooth Movement TechniquesTooth RootYoung AdultCone beam computed tomographyExternal root resorptionOrthodontic treatmentRoot canal treatment

Identifiers

PMID40011294
PMCPMC11865387

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.