Third Molar and Their Relationship with Caries on the Distal Surface of Second Molar: A Meta-analysis

Glória, José Cristiano Ramos; Martins, Carolina Castro; Armond, Anna Catharina Vieira; Galvão, Endi Lanza; Santos, Cássio Roberto Rocha dos; Falci, Saulo Gabriel Moreira

doi:10.1007/s12663-017-1032-9

Cited by 24 publications

(19 citation statements)

References 45 publications

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“…However, because we did not have information on the reasons for extraction, there is also insufficient evidence to refute the practice. There was an increase in the risk of secondmolar loss when the adjacent third molar was unerupted and was inclined toward a horizontal position, which supports cross-sectional data in younger adults (Glória et al 2018). Adults who present with unerupted or erupted third molars should be strongly advised to maintain good oral hygiene and dietary practices and have regular preventive dental visits, including radiographs to detect any changes in the position of an unerupted tooth.…”

Section: Discussionsupporting

confidence: 69%

Third-Molar Status and Risk of Loss of Adjacent Second Molars

et al. 2021

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The prophylactic removal of asymptomatic third molars is a common but controversial procedure often rationalized as necessary to prevent future disease on adjacent teeth. Our objective in this retrospective cohort study of adult men was to examine whether second-molar loss differed by baseline status of the adjacent third molar, taking into account the individual’s overall state of oral hygiene, caries, and periodontitis. We analyzed data from participants of the VA Dental Longitudinal Study who had at least 1 second molar present at baseline and 2 or more triennial dental examinations between 1969 and 2007. We classified second molars by third-molar status in the same quadrant: unerupted, erupted, or absent. Tooth loss and alveolar bone loss were confirmed radiographically. Caries and restorations, calculus, and probing depth were assessed on each tooth. We estimated the hazards of second-molar loss with proportional hazards regression models for correlated data, controlling for age, smoking, education, absence of the first molar, and whole-mouth indices of calculus, caries, and periodontitis. The analysis included 966 men and 3024 second molar/first molar pairs. Follow-up was 22 ± 11 y (median 24, range 3–38 y). At baseline, 163 third molars were unerupted, 990 were erupted, and 1871 were absent. The prevalence of periodontitis on the second molars did not differ by third-molar status. The prevalence of distal caries was highest on the second molars adjacent to the erupted third molars and lowest on the second molars adjacent to the unerupted third molars. Relative to the absent third molars, adjusted hazards of loss of second molars were not significantly increased for those adjacent to erupted (hazard ratio [HR] = 0.96, 95% confidence interval [CI] = 0.79–1.16) or unerupted (HR = 1.25, 95% CI = 0.91–1.73) third molars. We found similar results when using alveolar bone loss as the periodontitis indicator. Our findings suggest that retained third molars are not associated with an increased risk of second-molar loss in adult men.

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Section: Discussionsupporting

confidence: 69%

Third-Molar Status and Risk of Loss of Adjacent Second Molars

et al. 2021

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“…Com base nessa teoria, Niedzielska sugeriu que, quando há espaço suficiente para a erupção dos terceiros molares, o dente assume uma posição normal na arcada dentária e não causa deslocamento dos outros dentes; por outro lado, quando o espaço é deficiente, os terceiros molares podem agravar o apinhamento dentário (NIEDZIELSKA, 2005) GLÓRIA et al, 2018;SUKEGAWA et al, 2019).…”

Section: Revisão Da Literaturaunclassified

“…A remoção cirúrgica dos terceiros molares inferiores é um dos procedimentos cirúrgicos mais realizados em odontologia (GLÓRIA et al, 2018). Não há evidências para apoiar a remoção profilática de terceiros molares inferiores; em contraste, no caso de condições patológicas relacionadas ao terceiro molar mandibular, a remoção pode ser considerada.…”

Section: Introductionunclassified

Anatomia e considerações clínicas dos Terceiros Molares Inclusos: Uma Revisão de Literatura / Anatomy and clinical considerations of the included third molars: A Literature Review

et al. 2019

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A remoção cirúrgica dos terceiros molares inferiores é um dos procedimentos cirúrgicos mais realizados em odontologia. Não há evidências para apoiar a remoção profilática de terceiros molares inferiores; em contraste, no caso de condições patológicas relacionadas ao terceiro molar mandibular, a remoção pode ser considerada. As alterações patológicas podem ser sintomáticas ou assintomáticas. Sendo, portanto, o objetivo do presente trabalho apresentar a impacção dos terceiros molares como um problema de saúde caracterizando a importância desses conhecimentos para o Cirurgião-dentista. Será realizada uma revisão de literatura a partir da busca nos bancos de dados PubMed e LiLacs para identificar as publicações disponíveis no período de 2009 a 2019. As seguintes palavras-chave serão utilizadas na busca: “Terceiros Molares Inclusos” em português e em inglês. Serão excluídos, resumos e resumos expandidos, estudos experimentais não finalizados, artigos latino-americanos. Os artigos encontrados serão separados e adicionados no Mendeley para identificação de duplicatas, após a exclusão das duplicatas serão lidos os títulos para a primeira etapa da seleção dos artigos, em seguida a leitura dos resumos que terá caráter de exclusão ou permanência do manuscrito e por fim a leitura do artigo na íntegra para composição da revisão da literatura.

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“…2 Even though impacted third molars could exist permanently without any symptoms, they could also lead to various pathologies and thereby symptoms, such as swelling, loss of bone, pain, pericoronitis, resorption of the roots of adjacent teeth, distal caries, and odontogenic tumors and cysts. [2][3][4] Of these complications, distal caries is the most common. 5 Due to the abnormal location of a protruded or nonprotruded MTM, it can impact food intake and the retention of plaque between the mandibular second molar (MSM), leading to caries in the MSM.…”

Section: Introductionmentioning

confidence: 99%

“…5 Due to the abnormal location of a protruded or nonprotruded MTM, it can impact food intake and the retention of plaque between the mandibular second molar (MSM), leading to caries in the MSM. 3 Clinically, an impacted MTM makes it difficult to detect distal caries of the MSM by visual examination. In more severe cases, pulpitis and periodontal diseases have even appeared.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar

Jin¹,

Zhang²,

Jin³

et al. 2021

IJGM

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Objective: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 χ 2 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.

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Third Molar and Their Relationship with Caries on the Distal Surface of Second Molar: A Meta-analysis

Abstract: The results of this study suggest that the presence of MTMs increases the incidence of caries on the distal surface of MSMs. Furthermore, caries on the distal surface of MSMs is more commonly associated with position A and horizontal and mesioangular mandibular molars.

Cited by 24 publications

References 45 publications

Third-Molar Status and Risk of Loss of Adjacent Second Molars

Third-Molar Status and Risk of Loss of Adjacent Second Molars

Anatomia e considerações clínicas dos Terceiros Molares Inclusos: Uma Revisão de Literatura / Anatomy and clinical considerations of the included third molars: A Literature Review

Analysis of Factors Related to Distal Proximal Caries on the Distal Surface of the Mandibular Second Molar Induced by an Impacted Mandibular Third Molar

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