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Date Published: 15/11/2023
Abstract Views: 259
Views PDF: 139
DOI: https://doi.org/10.51298/vmj.v531i2.7113
Issue
Vol. 531 No. 2 (2023)
Section
Các bài báo
How to Cite
Chu , T. N. M. ., Trịnh , Đình H. ., & Đinh , D. H. . (2023). THE MORPHOLOGICAL CHARACTERISTICS OF IMPACTED MANDIBULAR THIRD MOLARS ON CONE-BEAM COMPUTED TOMOGRAPHY IMAGES. Vietnam Medical Journal, 531(2). https://doi.org/10.51298/vmj.v531i2.7113

THE MORPHOLOGICAL CHARACTERISTICS OF IMPACTED MANDIBULAR THIRD MOLARS ON CONE-BEAM COMPUTED TOMOGRAPHY IMAGES

Thị Ngọc Mai Chu 1, Đình Hải Trịnh 1, Diệu Hồng Đinh 1,
1 VNU Hanoi-University of Medicine and Pharmacy

Main Article Content

Abstract

Objective: To describe the morphological characteristics and correlations with anatomical landmarks of impacted mandibular third molars (IMTMs) on cone-beam computed tomography (CBCT) images at Morita Dental X-ray Center in Hanoi, first quarter of 2023. Research method: Evaluation of 133 IMTMs on CBCT images of 85 patients. Results: Among the 133 IMTMs, the most common angulation was mesioangular, accounting for 47.3%. The highest point of IMTMs was located at or above the occlusal plane of the adjacent tooth 7 (position A) in 40.6% of cases. Type II impaction, characterized by a smaller bone width compared to the tooth width, accounted for 41.4%. Two-rooted teeth were predominant, representing 74.4% of cases. Non-contact between the inferior alveolar nerve and the tooth root was observed in 62.4% of cases, while contact was present in 37.6%. Conclusion: The study provided morphological characteristics of IMTMs on CBCT images at Morita Dental X-ray Center in Hanoi, first quarter of 2023, serving as a basis for planning appropriate surgical treatment.

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References

1. Hattab F.N (1997), Positional changes and eruption of impacted mandibular third molars in young adults. A radiographic 4-year follow-up study. Oral Surg. Oral Med. Oral Pathol. Oral Radiol. Endodontol. ;84:6004–6008.
2. Owecka M., Dyszkiewicz-Konwińska M., Kulczyk T (2012), Zastosowanie tomografii komputerowej z promieniem stożkowym (CBCT) w stomatologii i laryngologii. Now. Lek.;81:653–657
3. Nguyễn Phú Thắng (2021), Phẫu thuật miệng II. Nhà xuất bản giáo dục Việt Nam, 86-121.
4. Wang WQ, Chen MY, Huang HL, et al (2015), New quantitative classification of the anatomical relationship between impacted third molars and the inferior alveolar nerve. BMC Med Imaging Dec. 15, 59.
5. Trần Cao Bính, Phạm Trần Anh Khoa (2017), Giá trị của phim toàn cảnh panoramara và phim cắt lớp chùm tia hình nón trong phẫu thuật răng hàm lớn thứ ba hàm dưới. Tạp chí Y học Việt Nam. 459(2): 39-42
6. Monaco G. Montevecchi M, Bonetti GA., et al (2004), Reliability of panoramic radiography in evaluating the topographic relationship between the mandibular canal and impacted third molars. Journal of the American Dental Association. 135(3), 312–318.