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Date Published: 30/09/2023
Online Published: 30/09/2023
Abstract Views: 407
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DOI: https://doi.org/10.58490/ctump.2023i64.1262
Issue
No. 64 (2023)
Section
Article
How to Cite
Kim, N. K. V., Tran, T. P. D., & Lam, N. T. (2023). CLINICAL FEATURES AND PARACLINICAL OF THIRD MOLAR TOOTH IN THE CLOSED RELATIONSHIP WITH INFERIOR ALVEOLAR NERVE IN CORONECTOMY. Cantho Journal of Medicine and Pharmacy, 64, 118-123. https://doi.org/10.58490/ctump.2023i64.1262

CLINICAL FEATURES AND PARACLINICAL OF THIRD MOLAR TOOTH IN THE CLOSED RELATIONSHIP WITH INFERIOR ALVEOLAR NERVE IN CORONECTOMY

Ngoc Khanh Vinh Kim1,, Thi Phuong Dan Tran1, Nhut Tan Lam1
1 Can Tho University of Medicine and Pharmacy

Main Article Content

Abstract

Background: Injury of the inferior alveolar nerve (IAN) is a significant risk factor after the removal of an impacted third molar. Examining and identifying root risk factors related to the inferior alveolar nerve is an important step. Preoperative panoramic radiography and Conbeam computed tomography (CBCT) are essential to identify the root signs relevant to the inferior alveolar nerve. Objectives: Describe the clinical and radiographic features of the mandibular third molar with the inferior alveolar nerve involvement in patients undergoing coronectomy surgery. Materials and methods: 36 patients who were indicated for coronectomy surgery were diagnosed with lower third molar teeth in a closed relationship with the inferior alveolar nerve. Use a crosssectional descriptive study.  Results: The rate accounted for the highest proportion in the group of 18-25(77.8%), the proportion of the features are: Class II Pell-Gregory (97.2%), Class A PellGregory (86.1%), horizontal and mesioangular position (47.2%), loss of lamina dura of canal(44.4%), cortication of canal appears(50%), cortication of the canal is disappeared(33.3%), the inferior position(52.8%). Conclusions: The proportion of mandibular third molar roots related to the inferior alveolar nerve is quite high and is most common at the root apex, lossing of lamina dura of the canal are the most common sign on radiographs in these cases. Surveying the neurological signs of the mandibular third molar tooth root on panoramic film is very important to indicate a safe surgical method to limit the complications of nerve damage.

Article Details

Keywords

Coronectomy, injury nerve, mandibular third molar

References

1. Nguyễn Hoàng Nam. Nghiên cứu đặc điểm lâm sàng, X quang và đánh giá kết quả phẫu thuật cắt thân răng khôn hàm dưới mọc lệch/ngầm tại bệnh viện Trường Đại học Y Dược Cần Thơ, năm
2018 – 2019. Trường Đại Học Y Dược Cần Thơ. 2019, 45-57.
2. Rood, J. P., & Shehab, B. N. The radiological prediction of inferior alveolar nerve injury during third molar surgery. British Journal of Oral and Maxillofacial Surgery. 1990. 28(1), 20-25, https://doi.org/10.1016/0266-4356(90)90005-6
3. Luo, Q., Diao, W., Luo, L.Zhang, Y. Comparisons of the computed tomographic scan and panoramic radiography before mandibular third molar extraction surgery. Medical science monitor: international medical journal of experimental and clinical research. 2018. 24, 3340, doi: 10.12659/MSM.907913.
4. Hatano, Y., Kurita, K., Kuroiwa, Y., Yuasa, H., Ariji, E. Clinical evaluations of coronectomy (intentional partial odontectomy) for mandibular third molars using dental computed tomography: a case-control study. Journal of oral and maxillofacial surgery.2009. 67(9), 1806-1814, https://doi.org/10.1016/j.joms.2009.04.018
5. Pedersen, M. H., Bak, J., Matzen, L. H., Hartlev, J., Bindslev, J., et al. Coronectomy of mandibular third molars: a clinical and radiological study of 231 cases with a mean follow-up period of 5.7 years. International journal of oral and maxillofacial surgery. 2018. 47(12), 1596-1603, https://doi.org/10.1016/j.ijom.2018.06.006
6. Trần Thị Lộc An và Nguyễn Thị Bích Lý. Hiệu quả của phương pháp cắt bỏ thân răng trong nhổ răng khôn lệch hàm dưới có liên quan với thần kinh xương ổ dưới. Tạp chí Y Học Tp. Hồ Chí Minh. 2016. 20, 132-137.
7. Leung, Y. Y., & Cheung, L. K. Safety of coronectomy versus excision of wisdom teeth: a randomized controlled trial. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology. 2009. 108(6), 821-827, https://doi.org/10.1016/j.tripleo.2009.07.004
8. Nguyễn Minh Khởi. Nghiên cứu đặc điểm lâm sàng, X quang và đánh giá kết quả phẫu thuật nhổ răng khôn hàm dưới bằng tay khoan quay và máy Piezotome ở bệnh nhân tại trường Đại học Y dược Cần Thơ năm 2017-2019. Trường Đại học Y dược Cần Thơ. 2019, 41-44.
9. Phan Huỳnh An và Lê Đức Lánh. Liên quan giữa chân răng khôn và ống răng dưới đối chiếu trên phim toàn cảnh và Conbeam CT. Tạp chí Y Học Tp. Hồ Chí Minh.2014. 18(1), 310-315.
10. Ghaeminia, H., Meijer, G. J., Soehardi, A., Borstlap, W. A., Mulder, J., et al. Position of the impacted third molar in relation to the mandibular canal. Diagnostic accuracy of cone beam computed tomography compared with panoramic radiography. International journal of oral and maxillofacial surgery. 2009. 38(9), 964–971, https://doi.org/10.1016/j.ijom.2009.06.007