Prognosis of complexity and level of trauma of lower third molars atypical removal on the basis of radiologic criteria of their retention

S. V. Kyyak


Tooth impaction is malformation which occurred because of obstruction on the way of its eruption or ectopic placing of the tooth. Thorough radiologic assessment is required before “wisdom tooth” extraction. Most of impactions classifications and treatment algorithms are built on the radiologic assessment. There were quite a few attempts to create a model which determine complexity of lower third molars removal (MacGregor, 1979, M. Diniz-Freitas, 2007, H. Yuasa et al., 2002, G. L. Howe, 1971, A. M. Nieves et al., 2009 etc.). The aim of the work was the improvement of diagnostic approach and planning of atypical removal of impacted lower third molars considering complex of radiologic criterions. Synchronization of radiological and other criterions of lower third molar impaction with the aim of prognosis of complications, level of trauma and difficulty of their atypical removal will improve quality of surgical process and relieve postoperative period of patients. Creation of computer program including these criterions will simplify the work of dental surgeons and will serve as an effective visualization of study process of students and interns.


lower third molars impaction; radiologic criterias; complexity of atypical removal; trauma from atypical removal.


Pat. №89563 U Ukrayina, MPK A 61 S 3/00. Sposib peredoperatsiynoyi otsinky retentsiyi atypovoho vydalennya nyzhnʹoho tretʹoho molyara / Zayavnyky ta patentovlasnyky: YA. E. Vares, S. V. Kyyak– № u 2013 13650; zayavl. 25.11.2013; opubl. 25.04.2014, Byul. № 8.

Archer W. H. Oral and Maxillofacial Surgery / W. H. Archer – 5th ed. – Philadelphia : WB Saunders, 1975. – Vol. 1. – 522 p.

Assessment of factors associated with surgical difficulty in impacted mandibular third molar extraction / O. M. Gbotolorun, G. T. Arotiba, A. L. Ladeinde // J. Oral Maxillofac. Surg. – 2007. – Vol. 65, № 10. – P. 1977–1983.

Carvalho R. W. Assessment of factors associated with surgical difficulty during removal of impacted lower third molars / R. W. Carvalho, B. C. Vasconcelos // J. Oral Maxillofac. Surg. – 2011. – Vol. 69, № 11. – P. 2714–2721.

Contemporary Oral and Maxolllofacial Surgery / edit. J. R. Hupp, E. Ellis, M. R. Tucker – 5th ed. – St. Luise : MOSBY Elsevier, 2008. – 250 p.

Howe G. L. Minor oral surgery / G. L. Howe – 2nd ed. – Bristol: John Wright and Sons Publishers Ltd. – 1971. – P. 89–115.

Inferior alveolar nerve injury and surgical difficulty prediction in third molar surgery: the role of dental panoramic tomography / W. Jerjes, M. El-Maaytah, B. Swinson [et al.] // J. Clin. Dent. – 2006. – Vol. 17, № 5. – P. 122–130.

Longson M. Persistence in herpes simplex virus infections / M. Longson // Postgrad. Med. J. – 1978. – Vol. 54, № 635. – P. 603–612.

Myositis ossificans circumscripta of the buccinator muscle: First report of a rare complication of mandibular third molar extraction / R. L. Wiggins, D. Thurber, K. Abramovitch [et al.] // J. Oral Maxillofac. Surg. – 2008. –Vol. 66, № 9. – P. 1959–1963.

Nieves A. M. Evaluation of Intraexaminer and Interexaminer Agreement on Classifying Lower Third Molars According to the Systems of Pell and Gregory and of Winter / A. M. Nieves, B. A. Leonardo, G. E. Cosme //

J. Oral Maxillofac. Surg. – 2008. – Vol. 66, № 5. – P. 893–899.

Oral and Maxillofacial Surgery / edit. L. Andersson, K. E. Kahnberg, M. Pogrel – Chichester : Wiley- Blackwell, 2010. – 1273 p.

Pederson scale fails to predict how difficult it will be to extract lower third molars / M. Diniz-Freitas, L. Lago-Mendez, F. Gude-Sampedro // Brit. J. Oral Maxillofac. Surg. – 2007. – Vol. 45, № 1. – P. 23–26.

Pell G. J. Impacted mandibular third molars: classifications and modified technique for removal / G. J. Pell, G. T. Gregory // Dent. Digest. – 1933. – Vol. 39. – P. 330–338.

Petersonʺs Principles Of Oral And Maxillofacial Surgery / edit. M. Miloro, G. E. Ghali, E. L. Peter – 2nd ed. – London : BC Decker Inc. Hamilton, 2004. – 1502 p.

Prediction of postoperative facial swelling, pain and trismus following third molar surgery based on preoperative variables / T. Santana-Santos, J. Souza-Santos, P. R. Martins-Filho [et al.] // Med. Oral Patol. Oral Cir. Bucal. – 2013. – Vol. 18, № 1. – P. 65–70.

Surgical management of accidentally displaced mandibular third molar into the pterygomandibular space: a case report / I. Y. Huang, C. M. Chen, S. W. Chang // J. Med. Sci. – 2007. – Vol. 23, № 7. – P. 370–374.

Susarla S. M. Preoperative computed tomography imaging in the management of impacted mandibular third molars / S. M. Susarla, T. B. Dodson // J. Oral Maxillofac. Surg. – 2007. – Vol. 65, № 1. – P. 83–88.

Yuasa H. Classification of surgical difficulty in extracting third molars / H. Yuasa, T. Kawai, M. Sugiura // Brit. J. Oral Maxillofac. Surg. – 2002. – Vol. 40, № 1. – P. 26–31.



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