Bir Grup Türk Popülasyonunda Alt Çene Azı Dişlerinin Anatomisinin Konik Işınlı Bilgisayarlı Tomografi Çalışması
Yıl 2023,
Cilt: 16 Sayı: 1, 44 - 52, 30.04.2023
Erhan Erkan
,
Keziban Olcay
,
Tan Fırat Eyüboğlu
,
Elif Şener
,
Mustafa Gündoğar
Öz
Giriş Alt çene azı dişleri, karmaşık radix entomolaris veya c şeklindeki kök kanallarının varlığı gibi karmaşık anatomik yapıları nedeniyle kök kanal tedavilerinin başarısız olduğu en yaygın diş gruplarından biridir. Bu dişlerin uzun dönem başarısı için tüm anatomik varyasyonların iyi bilinmesi gerekir. Bu çalışmanın amacı, bir grup Türk hastada konik ışınlı bilgisayarlı tomografi (KIBT) görüntülerini inceleyerek alt çene azı dişlerinin kök sayısını ve kök kanal anatomisini değerlendirmektir.
Gereç ve Yöntemler Toplam 280 hastanın 936 alt birinci ve ikinci mazı dişlerinin KIBT görüntüleri değerlendirildi ve bu dişlerde kök sayısı, kök kanal anatomisi, radix entomolaris ve c şekilli kök kanallarının görülme sıklığı değerlendirildi. Hastaların cinsiyeti ve yaşı da kaydedilerek aralarındaki olası korelasyonlar araştırıldı.
Sonuçlar Toplam 936 alt azı dişinin %98.8' inde iki kök vardı ve %1'inde radix entomolaris mevcuttu. Dişlerin %79.7' sinde 3, %17.7'sinde 4 ve %2.7'sinde 2 kök kanalı vardı. Alt ikinci azı dişlerinin %6,6'sında C-şekilli kök kanal oluşumu görüldü. Alt ikinci azı dişlerinin mezyal kökleri için tek kanal (Vertucci tip I) görülme oranı %4,7 iken, alt birinci azı dişlerinin distal kökleri %30,3 oranında tip IV oluşum gösterdi.
Sonuç Bulgularımızın klinik pratiğe katkısı göz önüne alındığında, alt ikinci azı dişlerinde C şeklindeki kanalların görülme sıklığı %6,6 idi. Radix entomolaris, tüm dişlerin %1'inde mevcuttu. Alt azı dişlerinin %17.7' sinde dört kök kanalı tespit edildi.
Kaynakça
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Assessment of the Canal Anatomy of the Mandibular Molars in a Group of Turkish Patients: A Cone-Beam Computed Tomography Study
Yıl 2023,
Cilt: 16 Sayı: 1, 44 - 52, 30.04.2023
Erhan Erkan
,
Keziban Olcay
,
Tan Fırat Eyüboğlu
,
Elif Şener
,
Mustafa Gündoğar
Öz
Objective: The mandibular molars represent one of the most common dental groups in which root canal treatments fail due to their complex anatomical structure and presence of the radix entomolaris or c-shaped root canals. For the long-term successful treatment of these teeth, all anatomical variations should be well known. The aim of this study was to evaluate the number of roots and root canal anatomy of mandibular molars in a group of Turkish patients by examining cone-beam computed tomography (CBCT) images.
Material and Method: The CBCT images of 936 mandibular first and second molars of a total of 280 patients were evaluated, and the number of roots, root canal anatomy, and incidence of the radix entomolaris and c-shaped root canals in these teeth. The patients’ gender and age were also recorded, and their possible correlation with the dental data was investigated.
Results: Among the total 936 mandibular molars, 98.8% had two roots, and the radix entomolaris was present in 1%. The number of root canals was 3 in 79.7% of the teeth, 4 in 17.7%, and 2 in 2.7%. Of the mandibular second molars, 6.6% showed C-shaped root canal formation. The rate of a single canal (Vertucci type I) was 4.7% for the mesial roots of the second molars, while the distal roots of the mandibular first molars showed type IV formation at a rate of 30.3%.
Conclusion: Considering the contribution of our findings to clinical practice, the incidence of C-shaped canals in the mandibular second molars was 6.6%. Radix entomolaris was present in 1% of all the teeth. Four root canals were detected in 17.7% of the mandibular molars.
Kaynakça
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- 3. Zaatar E. I., al-Kandari A. M., Alhomaidah S., al-Yasin I. M. Frequency of endodontic treatment in Kuwait: radiographic evaluation of 846 endodontically treated teeth. J Endod 1997;23(7):453–6. Doi: 10.1016/s0099-2399(97)80302-0.
- 4. Scavo R, Martinez Lalis R, Zmener O, Dipietro S, Grana D, Pameijer CH. Frequency and distribution of teeth requiring endodontic therapy in an Argentine population attending a specialty clinic in endodontics. Int Dent J. 2011 Oct;61(5):257-60. doi: 10.1111/j.1875-595X.2011.00069.x. PMID: 21995373.
- 5. Touré B, Faye B, Kane AW, Lo CM, Niang B, Boucher Y. Analysis of reasons for extraction of endodontically treated teeth: a prospective study. J Endod. 2011 Nov;37(11):1512-5. doi: 10.1016/j.joen.2011.07.002. Epub 2011 Sep 8. PMID: 22000453.
- 6. Tahmasbi M, Jalali P, Nair MK, Barghan S, Nair UP. Prevalence of Middle Mesial Canals and Isthmi in the Mesial Root of Mandibular Molars: An In Vivo Cone-beam Computed Tomographic Study. J Endod. 2017 Jul;43(7):1080-1083. doi: 10.1016/j.joen.2017.02.008. Epub 2017 May 17. PMID: 28527840.
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- 8. Cooke H. G., Cox F. L. C-shaped canal configurations in mandibular molars. J Am Dent Assoc 1979;99(5):836–9. Doi: 10.14219/jada.archive.1979.0402.
- 9. Sert S., Aslanalp V., Tanalp J. Investigation of the root canal configurations of mandibular permanent teeth in the Turkish population. Int Endod J 2004;37(7):494–9. Doi: 10.1111/j.1365-2591.2004.00837.x.
- 10. Kantilieraki E, Delantoni A, Angelopoulos C, Beltes P. Evaluation of Root and Root Canal Morphology of Mandibular First and Second Molars in a Greek Population: A CBCT Study. Eur Endod J. 2019 Jul 18;4(2):62-68. doi: 10.14744/eej.2019.19480. PMID: 32161889; PMCID: PMC7006552.
- 11. Celikten B, Tufenkci P, Aksoy U, Kalender A, Kermeoglu F, Dabaj P, Orhan K. Cone beam CT evaluation of mandibular molar root canal morphology in a Turkish Cypriot population. Clin Oral Investig. 2016 Nov;20(8):2221-2226. doi: 10.1007/s00784-016-1742-2. Epub 2016 Feb 6. PMID: 26850623.
- 12. Shemesh A, Levin A, Katzenell V, Itzhak JB, Levinson O, Avraham Z, Solomonov M. C-shaped canals-prevalence and root canal configuration by cone beam computed tomography evaluation in first and second mandibular molars-a cross-sectional study. Clin Oral Investig. 2017 Jul;21(6):2039-2044. doi: 10.1007/s00784-016-1993-y. Epub 2016 Nov 14. PMID: 27844150.
- 13. Calişkan MK, Pehlivan Y, Sepetçioğlu F, Türkün M, Tuncer SS. Root canal morphology of human permanent teeth in a Turkish population. J Endod. 1995 Apr;21(4):200-4. doi: 10.1016/S0099-2399(06)80566-2. PMID: 7673821.
- 14. Kim Y, Roh BD, Shin Y, Kim BS, Choi YL, Ha A. Morphological Characteristics and Classification of Mandibular First Molars Having 2 Distal Roots or Canals: 3-Dimensional Biometric Analysis Using Cone-beam Computed Tomography in a Korean Population. J Endod. 2018 Jan;44(1):46-50. doi: 10.1016/j.joen.2017.08.005. Epub 2017 Oct 21. PMID: 29033084.
- 15. Pawar AM, Pawar M, Kfir A, Singh S, Salve P, Thakur B, Neelakantan P. Root canal morphology and variations in mandibular second molar teeth of an Indian population: an in vivo cone-beam computed tomography analysis. Clin Oral Investig. 2017 Dec;21(9):2801-2809. doi: 10.1007/s00784-017-2082-6. Epub 2017 Mar 9. PMID: 28281013.
- 16. Neelakantan P, Subbarao C, Subbarao CV. Comparative evaluation of modified canal staining and clearing technique, cone-beam computed tomography, peripheral quantitative computed tomography, spiral computed tomography, and plain and contrast medium-enhanced digital radiography in studying root canal morphology. J Endod. 2010 Sep;36(9):1547-51. doi: 10.1016/j.joen.2010.05.008. Epub 2010 Jul 15. PMID: 20728725.
- 17. Special Committee to Revise the Joint AAE/AAOMR Position Statement on use of CBCT in Endodontics. AAE and AAOMR Joint Position Statement: Use of Cone Beam Computed Tomography in Endodontics 2015 Update. Oral Surg Oral Med Oral Pathol Oral Radiol 2015;120(4):508–12. Doi: 10.1016/j.oooo.2015.07.033.
- 18. Patel S., Brown J., Semper M., Abella F., Mannocci F. European Society of Endodontology position statement: Use of cone beam computed tomography in Endodontics: European Society of Endodontology (ESE) developed by. Int Endod J 2019;52(12):1675–8. Doi: 10.1111/iej.13187.
- 19. Weine F. S. The C-shaped mandibular second molar: incidence and other considerations. Members of the Arizona Endodontic Association. J Endod 1998;24(5):372–5. Doi: 10.1016/s0099-2399(98)80137-4.
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