Evidence map›Paper›PMID 40705913›Full record

Observational studyClinical and experimental dental research2025

Pulp Stone Formation Following Fixed Orthodontic Treatment: A Panoramic Radiographic Comparison of Extraction and Non-Extraction Approaches.

Kosar Gholinezhad, Hakimeh Ghorbani, Seyedali Seyedmajidi, Sedigheh Sheikhzadeh, Manouchehr Rahmati Kamel

Abstract readObservational StudyComparative Study
In one paragraph

Observational study in Clinical and experimental dental research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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.

Kosar GholinezhadStudent Research Committee, Babol University of Medical Sciences, Babol, Iran.ORCID 0009-0003-6047-4005
Hakimeh GhorbaniOral Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.ORCID 0000-0002-2952-3273
Seyedali SeyedmajidiDental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.ORCID 0000-0002-3841-0609
Sedigheh SheikhzadehDental Materials Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.ORCID 0000-0002-4022-2164
Manouchehr Rahmati KamelOral Health Research Center, Health Research Institute, Babol University of Medical Sciences, Babol, Iran.ORCID 0000-0001-7561-5948

Funding

The authors received no specific funding for this work.
6 · The paper itself

Abstract

objectiveThe impact of orthodontic forces on pulp stone formation has been the focus of several studies. Given that orthodontic extractions typically involve the application of greater forces to the teeth, the aim of this study was to compare the extent of pulp stone formation in the molar teeth of patients undergoing orthodontic treatment with and without extractions. MATERIAL AND

methodsIn this retrospective observational study, panoramic radiographs of 80 orthodontic patients taken between 2014 and 2020 (equally divided into extraction and non-extraction groups) who had a full set of permanent molars were analyzed before and after orthodontic treatment to assess the formation of pulp stones in the pulp chambers of the molar teeth (640 molars). Data were analyzed using the Chi-square and McNemar tests with a significance level set at p < 0.05, using SPSS software.

resultsThe frequency of pulp stone formation significantly increased in both the extraction and non-extraction groups following fixed orthodontic treatment (p < 0.001 and p = 0.02, respectively). However, no statistically significant difference was observed in the extent of pulp stone formation between the two groups (p = 0.09). The frequency of patients exhibiting pulp stone formation did not differ significantly by gender in either the extraction or non-extraction treatment groups (p = 0.392 and p = 0.451, respectively). In the extraction group, the prevalence of pulp stones was significantly higher in the first molar compared to the second molar (p = 0.001). In contrast, no significant difference was found between the first and second molars in the non-extraction group (p = 0.108). Additionally, no correlation was found between the frequency of pulp stone formation and jaw type (maxilla or mandible) in either group (p > 0.05).

conclusionsFixed orthodontic treatment is associated with increased pulp stone formation, regardless of whether extractions are performed. These findings may help clinicians in the early identification and monitoring of at-risk teeth.

Indexed as

Dental Pulp CalcificationOrthodontic Appliances, FixedOrthodontics, CorrectiveRadiography, PanoramicTooth ExtractionAdolescentAdultChildFemaleHumansMaleMolarRetrospective StudiesYoung Adultorthodontic extractionpanoramic radiographypulp calcificationpulp stone formation

Identifiers

PMID40705913
PMCPMC12288934

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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.