Evidence map›Paper›PMID 40604664›Full record

Observational studyBMC oral health2025

Age-related prevalence and correlation of dental and periodontal lesions in second molars adjacent to mesioangular and horizontally impacted mandibular third molars: a CBCT study.

Yudong Liu, Yang Zhou, Jianfeng He, Zhibin Wei, Yongqi Li, Libin Zhou

Abstract readObservational Study
PubMed Full text at PMC Publisher
In one paragraph

Observational study in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Yudong LiuDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, NO.195-3 Dongfengxi Road, Guangzhou, Guangdong, 510182, China.
Yang ZhouDepartment of Dentistry, Baoan Central Hospital of Shenzhen, Shenzhen, Guangdong, 518000, China.
Jianfeng HeDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, NO.195-3 Dongfengxi Road, Guangzhou, Guangdong, 510182, China.
Zhibin WeiDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, NO.195-3 Dongfengxi Road, Guangzhou, Guangdong, 510182, China.
Yongqi LiDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, NO.195-3 Dongfengxi Road, Guangzhou, Guangdong, 510182, China.
Libin ZhouDepartment of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Guangdong Engineering Research Center of Oral Restoration and Reconstruction, Guangzhou Medical University, NO.195-3 Dongfengxi Road, Guangzhou, Guangdong, 510182, China. fmmumario@126.com.

Funding

Research capacity improvement project of Guangzhou Medical University 06-410-2106034
6 · The paper itself

Abstract

backgroundThe management of asymptomatic impacted mandibular third molars (MTMs) remains controversial, particularly due to variations in impaction types and their associated risks. Mesioangular and horizontal impactions are common, yet their effects on adjacent mandibular second molars (MSMs) have not been thoroughly investigated. Clarifying the prevalence and severity of related pathologies and their correlation with age is crucial for clinical decision-making. This study aims to provide epidemiological evidence to support the management of mesioangular and horizontal MTMs.

methodsThis study was a retrospective and cross-sectional observational study. CBCT data of 875 pairs of mesioangular and horizontal impacted MTMs and their adjacent MSMs in 643 patients were collected and evaluated by two observers. Prevalence of caries, external root resorption (ERR) and bone loss (BL) of MSMs, percentages of the severity of lesions and their correlations with patient age were calculated. The chi-square test was used to analyze the difference between each impaction group. Spearman rank correlation analysis was applied to analysis the correlations.

resultsIn all MSMs, the overall prevalence of caries, ERR and BL of MSMs were 20.91%, 15.09%, 27.66% respectively. The overall prevalence of caries, ERR, and BL of MSMs were 27.80%, 14.41% and 35.08% in mesioangular impact group and 6.67%, 16.49% and 12.28% in horizontal impact group. A significant positive correlation was observed between age and the prevalence of caries and BL in the mesioangular impaction group (p < 0.001), whereas age was positively correlated with the prevalence of ERR in the horizontal impaction group (p < 0.001).The severity of caries, BL and ERR were positively correlated with patient age in mesioangular impact group (p < 0.01). The severity of caries and BL were positively correlated with patient age in horizontal impact group (p < 0.05).

conclusionsMesioangular impacted MTMs are more likely to cause caries and BL in adjacent teeth compared to horizontal impacted MTMs, whereas horizontal impacted MTMs tend to result in more severe ERR. Age plays a significant role in the occurrence and development of these diseases.

Indexed as

Dental CariesMolarMolar, ThirdTooth, ImpactedAdolescentAdultAge FactorsCone-Beam Computed TomographyCross-Sectional StudiesFemaleHumansMaleMandibleMiddle AgedPrevalenceRetrospective StudiesCone-Beam computed tomographyDental cariesImpacted toothPeriodontitisRoot resorptionThird molars

Identifiers

PMID40604664
PMCPMC12225154

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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.