Evidence map›Paper›PMID 35120518›Full record

ArticleBMC oral health2022

Morphological changes of the root apex in anterior teeth with periapical periodontitis: an in-vivo study.

Chen-Chen Zhang, Ya-Jing Liu, Wei-Dong Yang, Qian-Nan Zhang, Ming-Zhu Zha, Shan-Hui Wen, Qi Wang

Open access · goldAbstract read
In one paragraph

Article in BMC oral health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.3field-weighted citation impact, top 21% of its field
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, 8 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. 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 at 2 institutions in 1 country.

Chen-Chen Zhang *Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Zhongyang Road 30, Nanjing City, 210008, Jiangsu Province, China.
Ya-Jing Liu *Department of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Zhongyang Road 30, Nanjing City, 210008, Jiangsu Province, China.
Wei-Dong YangDepartment of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Zhongyang Road 30, Nanjing City, 210008, Jiangsu Province, China. ywdong2001@163.com.
Qian-Nan ZhangDepartment of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Zhongyang Road 30, Nanjing City, 210008, Jiangsu Province, China.
Ming-Zhu ZhaDepartment of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Zhongyang Road 30, Nanjing City, 210008, Jiangsu Province, China.
Shan-Hui WenDepartment of Dentomaxillofacial Radiology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, 210008, Jiangsu, China.
Qi WangDepartment of Endodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Zhongyang Road 30, Nanjing City, 210008, Jiangsu Province, China.
Nanjing Medical University · CNNanjing University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe aim was to analyze the morphological changes of root apex in anterior teeth with periapical periodontitis.

methods32 untreated anterior teeth with periapical periodontitis were enrolled, compared with the healthy contralateral teeth. Two-dimensional measurement of Cone-beam computed tomography was used to determine the location and measure diameter of the apical constriction according to Schell's methods. An open-source software (3D Slicer) was used to reconstruct the teeth. The apical constriction form was analysis according to Schell's topography. The distances of apical constriction to apical foramen and anatomical apex were measured respectively.

resultsThe difference value between buccolingual and mesiodistal diameter was (0.06 ± 0.09) mm and (0.04 ± 0.04) mm in periapical periodontitis and controls (p < 0.05). The mean distance between apical constriction and anatomical apex was significantly shorter in periapical periodontitis than controls, so was the mean distance of apical constriction to apical foramen. The most common form of apical constriction was flaring (65.6%) in periapical periodontitis.

conclusionsThe anterior teeth with periapical periodontitis had shorter distances of apical constriction to anatomical apex and apical foramen, bigger disparities between the diameters of buccolingual and mesiodistal, and higher proportion of flaring apical constriction.

Indexed as

Periapical PeriodontitisCone-Beam Computed TomographyHumansRoot Canal TherapyTooth Apex3D reconstructionAnterior teethCone-beam computed tomographyPeriapical periodontitisRoot apex morphology

Identifiers

PMID35120518
PMCPMC8817522
OpenAlexW4221062578

What OpenQuestion holds

Textmetadata
LicenceCC BY
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 OpenQuestion graph.