[Microanatomy features in third molars roots adjacent to mandibular canal].

The Purpose: Of the study is to reduce the risk of postoperative neuropathy of the inferior alveolar nerve by improving diagnostic methods, assessment of individual topographic and anatomical features and extraction technique of impacted teeth adjacent to the mandibular canal.

Materials And Methods: According to the CBCT examination, orthopantomography and macroscopic examination of removed third molars roots (=140) the relative position of the mandibular canal and the roots of the third molars were studied.

Results: Three variants of close mandibular canal and third molars position have been identified.

[Stafne defect as a rare anomaly of the lower jaw growth].

Defects in mandible growth are of undoubted interest for practical healthcare. During the diagnosis, for a more accurate diagnosis and differential diagnosis, it is necessary to understand the criteria for the norm and pathology of diseases of the jaw bones. Often in the body of the mandible at the level of the lower molars, slightly below the maxillofacial line, defects are detected in the form of a depression of the cortical layer towards the unchanged buccal cortical plate.

[Surgical treatment tactics in patients with third molars located close to mandibular canal].

The tight fit of the roots of the third molars to the mandibular canal is the main predisposing factor of injury to the inferior alveolar nerve during tooth extraction surgery. Surgical treatment of 92 patients diagnosed with pericoronitis, retention of the third molar of the mandible, close fit of the roots of the third molar to the mandibular canal was performed. Four types of close fit of the roots of the third molars to the mandibular canal were revealed, according to CBCT, OPTG and clinical data.

[Prevention of inflammatory complications after surgical extraction of mandibular third molars].

Background: Inflammatory complications are the most prevalent problems after surgical extraction of mandibular third molars. The main options for prevention are prophylactic antibiotics usage before surgery or in the postoperative period; a method of postoperative management of a tooth socket, implying healing by primary or secondary closure. Each of the postoperative management types has advantages and disadvantages.

Time Limiting Boundaries of Reversible Clinical Death in Rats Subjected to Ultra-Deep Hypothermia.

Background: It is well known that body temperature maintenance between 20 and 35°C prevents hypoxic damage. However, data regarding the ideal duration and permissible temperature boundaries for ultra-deep hypothermia below 20°C are rather fragmentary. The aim of the present study was to determine the time limits of reversible clinical death in rats subjected to ultra-deep hypothermia at 1-8°C.