Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar
Xiang Jin, Xiang-Zi Zhang, Cheng-Ri Jin, Yun-Ze Xuan Department of Dentistry, Affiliated Hospital of Yanbian University, Yanji, Jilin, 133000, People’s Republic of ChinaCorrespondence: Yun-Ze XuanDepartment of Dentistry, Affiliated Hospital of Yanbian University, No. 1327 of Juzi Street, Yanji, Jili...
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| Format: | Article |
| Language: | English |
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Dove Medical Press
2021-07-01
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| Series: | International Journal of General Medicine |
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| Online Access: | https://www.dovepress.com/analysis-of-factors-related-to-distal-proximal-caries-on-the-distal-su-peer-reviewed-fulltext-article-IJGM |
| _version_ | 1819155611740274688 |
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| author | Jin X Zhang XZ Jin CR Xuan YZ |
| author_facet | Jin X Zhang XZ Jin CR Xuan YZ |
| author_sort | Jin X |
| collection | DOAJ |
| description | Xiang Jin, Xiang-Zi Zhang, Cheng-Ri Jin, Yun-Ze Xuan Department of Dentistry, Affiliated Hospital of Yanbian University, Yanji, Jilin, 133000, People’s Republic of ChinaCorrespondence: Yun-Ze XuanDepartment of Dentistry, Affiliated Hospital of Yanbian University, No. 1327 of Juzi Street, Yanji, Jilin, 133000, People’s Republic of ChinaTel +86 15526770621Email xuanyunze_dr06@163.comObjective: To analyze the factors related to distal proximal caries of the mandibular second molar (MSM) induced by an impacted mandibular third molar (MTM).Methods: A total 500 panoramic radiographs of patients with impacted MTMs who were treated in the Department of Stomatology of the Affiliated Hospital of Yanbian University between October 2017 and October 2019 were selected. Descriptive and bivariate analyses were conducted, and the diagnosis of caries in the MSM and the position of the MTM were evaluated.Results: The posterior margin space of the MSM was larger in males (13.5 mm) than females (11.1 mm, P < 0.001) and correlated with the MTM’s impacted depth and eruption degree (P < 0.001). The prevalence of distal proximal caries of the MSM was 37.6%, and a χ2 test showed that age, impacted depth, impacted direction, impacted angle, degree of occurrence, and CEJ distance were correlated with caries in the distal adjacent surface of the MSM (P < 0.001). Logistic multivariate analysis showed that the impacted depth was at position A or B, the impacted direction was mesioangular, and the impacted angle was < 80°. Distal adjacent caries of MSMs were prone to occur when entirely or partially emergent. CEJ distance was not an independent factor for caries. The severity of caries in an MSM’s distal adjacent surface had statistical significance on the impacted depth and impacted angle (P < 0.001).Conclusion: The posterior margin space of the MSM influences the impacted condition of the MTM. Preventive extraction can be considered if the impacted angle is < 80°, especially in the case of a fully or partially emergent MTM at position A or B and mesioangular impacted areas.Keywords: mandibular third molar, dental caries, mandibular second molar, related factors |
| first_indexed | 2024-12-22T15:39:44Z |
| format | Article |
| id | doaj.art-f8d9555c3a9f49b596e69589138261e6 |
| institution | Directory Open Access Journal |
| issn | 1178-7074 |
| language | English |
| last_indexed | 2024-12-22T15:39:44Z |
| publishDate | 2021-07-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | International Journal of General Medicine |
| spelling | doaj.art-f8d9555c3a9f49b596e69589138261e62022-12-21T18:21:10ZengDove Medical PressInternational Journal of General Medicine1178-70742021-07-01Volume 143659366767111Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third MolarJin XZhang XZJin CRXuan YZXiang Jin, Xiang-Zi Zhang, Cheng-Ri Jin, Yun-Ze Xuan Department of Dentistry, Affiliated Hospital of Yanbian University, Yanji, Jilin, 133000, People’s Republic of ChinaCorrespondence: Yun-Ze XuanDepartment of Dentistry, Affiliated Hospital of Yanbian University, No. 1327 of Juzi Street, Yanji, Jilin, 133000, People’s Republic of ChinaTel +86 15526770621Email xuanyunze_dr06@163.comObjective: To analyze the factors related to distal proximal caries of the mandibular second molar (MSM) induced by an impacted mandibular third molar (MTM).Methods: A total 500 panoramic radiographs of patients with impacted MTMs who were treated in the Department of Stomatology of the Affiliated Hospital of Yanbian University between October 2017 and October 2019 were selected. Descriptive and bivariate analyses were conducted, and the diagnosis of caries in the MSM and the position of the MTM were evaluated.Results: The posterior margin space of the MSM was larger in males (13.5 mm) than females (11.1 mm, P < 0.001) and correlated with the MTM’s impacted depth and eruption degree (P < 0.001). The prevalence of distal proximal caries of the MSM was 37.6%, and a χ2 test showed that age, impacted depth, impacted direction, impacted angle, degree of occurrence, and CEJ distance were correlated with caries in the distal adjacent surface of the MSM (P < 0.001). Logistic multivariate analysis showed that the impacted depth was at position A or B, the impacted direction was mesioangular, and the impacted angle was < 80°. Distal adjacent caries of MSMs were prone to occur when entirely or partially emergent. CEJ distance was not an independent factor for caries. The severity of caries in an MSM’s distal adjacent surface had statistical significance on the impacted depth and impacted angle (P < 0.001).Conclusion: The posterior margin space of the MSM influences the impacted condition of the MTM. Preventive extraction can be considered if the impacted angle is < 80°, especially in the case of a fully or partially emergent MTM at position A or B and mesioangular impacted areas.Keywords: mandibular third molar, dental caries, mandibular second molar, related factorshttps://www.dovepress.com/analysis-of-factors-related-to-distal-proximal-caries-on-the-distal-su-peer-reviewed-fulltext-article-IJGMmandibular third molardental cariesmandibular second molarrelated factors |
| spellingShingle | Jin X Zhang XZ Jin CR Xuan YZ Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar International Journal of General Medicine mandibular third molar dental caries mandibular second molar related factors |
| title | Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar |
| title_full | Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar |
| title_fullStr | Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar |
| title_full_unstemmed | Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar |
| title_short | Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar |
| title_sort | analysis of factors related to distal proximal caries on the distal surface of the mandibular second molar induced by an impacted mandibular third molar |
| topic | mandibular third molar dental caries mandibular second molar related factors |
| url | https://www.dovepress.com/analysis-of-factors-related-to-distal-proximal-caries-on-the-distal-su-peer-reviewed-fulltext-article-IJGM |
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