Evidence map›Paper›PMID 31938961›Full record

ArticleClinical oral investigations2020

Three-dimensional position of mandibular third molars and its association with distal caries in mandibular second molars: a cone beam computed tomographic study.

Yanan Chen, Jianmao Zheng, Danna Li, Zhuwei Huang, Zijing Huang, Xue Wang, Xiaolei Zhang, Xiaoli Hu

Open access · hybridAbstract read
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In one paragraph

Article in Clinical oral investigations, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  15. Unusual role in occlusion and mastication of a horizontal positioned erupted mandibular third molar: a rare case.Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie
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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 at 1 institution in 1 country.

Yanan ChenGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China.
Jianmao ZhengGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China.
Danna LiGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China.
Zhuwei HuangGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China.
Zijing HuangGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China.
Xue WangGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China.
Xiaolei ZhangGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China.
Xiaoli HuGuangdong Province Key Laboratory of Stomatology, Guangzhou, 510080, Guangdong, China. huxiaol3@mail.sysu.edu.cn.ORCID http://orcid.org/0000-0002-0462-7500
Sun Yat-sen University · CN

Funding

National Natural Science Foundation of China 11772361
6 · The paper itself

Abstract

objectiveTo analyze the prevalence of distal caries in mandibular second molars (M2Ms) and its correlation with the three-dimensional position of mandibular third molars (M3Ms) by cone beam computed tomography (CBCT) images. MATERIALS AND

methodsCBCT scans involving 421 M3Ms were assessed. The presence of distal caries of M2Ms, patient age and gender, impaction depths and mesial angulation of M3Ms, the cementoenamel junction (CEJ) distances and contact point localization, and the horizontal positions of M3Ms were assessed. Risk factors were identified by multivariate logistic regression analysis.

resultsThe overall prevalence of distal caries in M2Ms was 31.6%. Mesial angulation (16°-75°) of M3Ms, contact point localization at or below the CEJ of M2Ms, and a buccal or lingual position of M3Ms relative to the molar line were identified as risk factors for the prevalence of distal caries in M2Ms (p < 0.05). Distal caries was more severe when the mesial angulation of M3Ms was 16°-75° (p < 0.05).

conclusionsBuccal or lingual position of M3Ms may represent a new risk factor for the distal caries in M2Ms. Mesial angulation (16°-75°) of M3Ms is a predictive parameter for both the presence and severity of distal caries in M2Ms. CLINICAL RELEVANCE: As the presence of distal caries in M2Ms is significantly associated with the three-dimensional position of M3Ms, watchful monitoring or prophylactic removal of M3Ms should be deliberated when M3Ms are mesially angulated (16°-75°), buccally or lingually positioned, and with the contact point localization at or below the CEJ of M2Ms.

Indexed as

Cone-Beam Computed TomographyMolar, ThirdTooth, ImpactedHumansMandibleMolarTooth CervixCone beam computed tomographyDental cariesDistal cariesMandibular second molarMandibular third molar

Identifiers

PMID31938961
OpenAlexW2998817484

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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.