Osteogenesis characteristics in the bone loss zone after the impacted mandibular third molar abnormal extraction

Zhanna Nekhanevych

DOI: http://dx.doi.org/10.12775/JEHS.2021.11.04.004


Introduction. Due to the anatomic topographic characteristics of Mandibular Third Molars’ (MTM) location, the surgical interference in the process of their extraction is often quite complicated, long-lasting as well as traumatic

Purpose. Optimization of reparative osteogenesis in the area of bone defects which formed after the third molars extraction in the mandible.

Material and methods. 92 patients had their impacted MTM abnormally extracted. 58 people were enrolled into the follow-up study. The inclusion criteria were female and male patients at the ages from 19 to 38; female and male patients without physical pathonomia; patients with the major bone losses, caused by the 38th  and 48th  teeth’s abnormal extraction; major bone loss or inter alveolar septum integration loss in the adjacent tooth area after the impacted tooth extraction; a written consent to participate in the study.

Results. Clinical state comparative study, conducted in the post-surgery period, pointed that the amount and duration of inflammatory complications in group III, which appeared after the impacted MTM extraction, were significantly less than in groups I and II (р<0,05).

Conclusions. The technic with the use of а-PRF, і-PRF provides inflammatory complications decrease at the post-surgery period, influences on the bone regeneration time as well as on the graft quality, but it does not prevent its dimension loss in the long term period, which leads to the receded gums and the distal root baring of the 7th tooth.


mandibular third molars’; bone regeneration; reparative osteogenesis; bone recombinant morphogenetic protein rhBMP-2

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Journal of Education, Health and Sport formerly Journal of Health Sciences

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