Imaging Sci Dent.  2022 Mar;52(1):67-74. 10.5624/isd.20210218.

Influence of mesiodens on adjacent teeth and the timing of its safe removal

• Barham M
• Okada S
• Hisatomi M
• Khasawneh A
• Tekiki N
• Takeshita Y
• Kawazu T
• Fujita M
• Yanagi Y
• Asaumi J

• KMID: 2527653
• DOI: http://doi.org/10.5624/isd.20210218

Abstract

Purpose
To focus on the effects of the presence of mesiodens on adjacent teeth and to investigate the timing of its safe removal.
Materials and Methods
Cone-beam computed tomography examinations, obtained at Okayama University Hospital over a three-year period, were inspected. Data were recorded including the number of mesiodens; associated abnormalities; and the relationship with neighboring structures. Depending on multiple factors, the risk of developing complications due to early extraction of a mesiodens was divided into three categories: high, medium, and low risk.
Results
A total of 5,958 cone-beam computed tomography exams were obtained, 460 patients aged 3-85 years were diagnosed with a total of 568 mesiodens, 382 (67.3%) of which were discovered in young patients (age <10 years), and 333 (87.2%) of these were associated with abnormalities. Regarding the risk categories, 11 (1.9%) were considered to be in the high-risk, five (0.9%) in the medium-risk and 552 (97.2%) in the low-risk categories. Moreover, eight out of 11 high-risk mesiodens were extracted and no post-operative complications have been seen.
Conclusion
As the results showed that no postoperative complications were seen in all the extracted cases of high-risk mesiodens, this indicates the possibility of safe extraction at an early age which could reduce related future complications.

Keyword

Tooth; Supernumerary; Cone-Beam Computed Tomography; Tooth Extraction