ID | 58753 |
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Author |
Bamgbose, Babatunde O.
Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Okada, Shunsuke
Okayama University Hospital
Yanagi, Yoshinobu
Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
ORCID
Kaken ID
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Takeshita, Yohei
Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Abdu, Zahrau Saleh
Department of Oral Diagnostic Sciences, Faculty of Dentistry, Bayero University Kano
Ekuase, Edugie J.
Department of Chemistry and Forensic Sciences, Savannah State University
Asaumi, Jun-ichi
Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Abstract | Purpose
The prevalence of supernumerary teeth has been reported to be between 0.1% and 3.8%. The aim of this study was to determine the prevalence, clinical significance, and associated pathologies of fourth molars based on a retrospective study and a literature review.
Materials and Methods
A 5-year retrospective prevalence study was conducted at the Department of Oral Diagnosis and Dentomaxillofacial Radiology of Okayama University Hospital, Okayama, Japan. The study involved extracting data from the digital records of patients from January 1, 2013 through December 31, 2017. The sampling frame included all patients who had panoramic radiographs, cone-beam computed tomography (CT), and multislice CT images during the period under review.
Results
A total of 26,721 cases were reviewed and 87 fourth molars were identified. The prevalence of fourth molars in the 5-year study at Okayama was calculated as 0.32%. The mean age of patients with a fourth molar was 30.43 years, and the male-to-female ratio was 1:0.98. The vast majority of cases were in the maxilla (92%) and had normal shapes (89.7%); furthermore, 82.8% of cases were unerupted.
Conclusion
The prevalence of fourth molars in the study population was found to be 0.32%, and fourth molars occurred with approximately equal frequency in males and females. Fourth molars were more common in the maxilla and were predominantly unerupted and small.
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Keywords | Tooth
Supernumerary
Odontoma
Odontogenic Cyst
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Published Date | 2019-05-25
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Publication Title |
Imagining Science in Dentistry
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Volume | volume49
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Issue | issue1
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Publisher | Korean Academy of Oral and Maxillofacial Radiology
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Start Page | 27
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End Page | 34
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ISSN | 22337822
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NCID | AA12764256
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Content Type |
Journal Article
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language |
English
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OAI-PMH Set |
岡山大学
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Copyright Holders | © 2019 by Korean Academy of Oral and Maxillofacial Radiology
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File Version | publisher
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Related Url | isVersionOf https://doi.org/10.5624/isd.2019.49.1.27
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