ArticleClinical oral investigations2019
External root resorption in maxillary and mandibular second molars associated with impacted third molars: a cone-beam computed tomographic study.
Article in Clinical oral investigations, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.
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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.
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Who cites it
26 citing papers in PubMed, 1 synthesis or guideline pooled it, 61 citations in OpenAlex.
- Association between impacted third molars and external root resorption on adjacent second molars based on cone-beam computed tomography: a systematic review and meta-analysis.BMC oral health · 2026Pooled it
- Anatomical Predictors of Second Molar External Root Resorption: A Cone-Beam Computed Tomography Study of Impacted Third Molars.International dental journal · 2026Article
- Long-term effects of a bony mucoperiosteal flap on bone preservation in bony impacted upper third molar surgery: a prospective exploratory study.BMC oral health · 2026Article
- A Deep Learning Model for Second-Molar Lesions Related to Impacted Third Molars.International dental journal · 2026Article
- CBCT-based evaluation of mandibular third molar impaction and its effects on adjacent second molars in a Saudi population: a retrospective study of 420 scans.BMC oral health · 2026Article
- Assessment of marginal bone loss, distal caries, and external root resorption in second molars adjacent to impacted third molars: a retrospective CBCT and panoramic study.BMC oral health · 2025Article
- Anatomical features of mandibular second molar C-shaped root canals in a Chinese population: a CBCT analysis.Surgical and radiologic anatomy : SRA · 2025Article
- A Prediction Model for External Root Resorption of the Second Molars Associated With Third Molars.International dental journal · 2025Article
- External root resorption of second molars due to impacted third molars.Journal of clinical and experimental dentistry · 2024Article
- Is there a relationship between the presence of external root resorption in second molars adjacent to impacted mandibular third molars with awake bruxism and masticatory muscle activity?Clinical oral investigations · 2024Article
- Full life cycle changes of low impacted mandibular third molar associated cystic lesions and adjacent tooth root resorption: a retrospective study.BMC oral health · 2024Article
- Introducing a new auto edge detection technique capable of revealing cervical root resorption in CBCT scans with pronounced metallic artifacts.Scientific reports · 2024Article
- Spatial Position and Anatomical Characteristics Associated with Impacted Third Molars Using a Map-Reading Strategy on Cone-Beam Computed Tomography Scans: A Retrospective Analysis.Diagnostics (Basel, Switzerland) · 2024Article
- Relationship between the impacted mandibular third molar and adjacent second molar' external root resorption by cone-bean computed tomography analysis.Medicina oral, patologia oral y cirugia bucal · 2024Article
- Could the pulp be preserved in tooth with root resorption caused by embedded tooth?Journal of dental sciences · 2023Article
- Third molar-related knowledge, attitudes, behaviors, and medical history of 904 Chinese adults: a cross-sectional survey.Journal of Zhejiang University. Science. B · 2023Article
- Palatal approach for surgical removal of mesioangularly impacted maxillary third molar - a pilot study.BMC oral health · 2023Article
- Cone-beam computed tomography-based radiographic considerations in impacted lower third molars: Think outside the box.Imaging science in dentistry · 2023Article
- Combined micro-apical surgery and vital pulp therapy in mandibular second molars with external root resorption caused by impacted teeth.Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2023Article
- Risk factors for external root resorption of maxillary second molars associated with third molars.Imaging science in dentistry · 2022Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveTo separately investigate the prevalence and risk factors of external root resorption (ERR) in maxillary and mandibular second molars (M2s) adjacent to impacted third molars (M3s). MATERIALS AND
methodsCBCT scans involving 184 maxillary and 323 mandibular impacted M3s were included. Age, gender, the impaction status of M3, the presence, severity, and location of ERR in M2 were assessed. Risk factors were identified by multivariate logistic regression analyses.
resultsThe prevalence of ERR was 32.6% in maxillary and 52.9% in mandibular M2s (P < 0.001). Mesio-angulated and deeply impacted M3s were identified as risk factors for both ERR in maxillary and mandibular M2s (P < 0.05). Besides, age over 25 increased the risk of ERR in maxillary M2s (P < 0.05). ERR in maxillary M2s was overall more severe than that in mandibular M2s (P < 0.001). For maxillary M2s, ERR mostly occurred at the apical third, while the mandibular M2s ERR was most frequently detected at the cervical third.
conclusionsERR occurring in M2s adjacent to impacted M3s is common, especially in mandibular M2s. ERR in maxillary M2s cannot be neglected because of its relatively high severity. Mesial angulation and impaction depth of M3 are significantly associated with ERR in M2s. For ERR in maxillary M2s, age is another predictive parameter. CLINICAL RELEVANCE: Considering the presence of ERR is associated with M3s' impaction, watchful monitoring or prophylactic removal of impacted M3s should be deliberated especially for the patients over 25 years and with mesially inclined and deeply positioned M3s.
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