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Biomedical subjects

A A Chumakov

Publications and source records attributed to A A Chumakov.

At least 37 records · Page 2Linked to original sources
PubMedDate not supplied

[Morphological study of histiocytosis from Langerhans cells in jaw bones].

Histiocytosis of the jaws in biopsies from 17 patients aged 19 to 51 years were studied at light and electron microscopy level. Birbek's bodies were found in Langerhans cells in all the biopsies confirming the diagnosis of Langerhans cell histiocytoma. The structure of Birbek's bodies changed depending on the treatment--radiation or chemotherapy.

Adult↗
PubMedDate not supplied

[The role of associative opportunistic flora in the development of odontogenic inflammatory diseases of the maxillofacial area].

Morphologic and microbiologic study of the operation and biopsy specimens, obtained from 73 patients with odontogenic inflammatory processes has shown that in 38% of cases the inflammation was induced by mixed fungal and bacterial flora. Associations of staphylococci or streptococci with actinomyces, Candida, Penicillium, Rhodotorula were most frequently isolated. As a rule, weak patients developed odontogenic inflammatory processes with mycotic involvement, these processes often taking a chronic course. Qualitative composition of the fungal-and-bacterial associations should be borne in mind when planning therapeutic measures for such patients.

Adult↗
PubMedDate not supplied

[A morphological basis for the levels of pulp extirpation and root c anal obturation (experimental morphological research)].

Periapical tissue reaction to root canal filling with zinc-eugenol paste (complete or incomplete filling) was studied in 15 teeth of 5 mongrel dogs after total or subtotal pulp extirpation. Inflammatory reaction developed in all the cases. It was more intensive in cases with total extirpation of the pulp followed by complete or incomplete filling of the root canal than after subtotal extirpation of the pulp followed by root canal filling 1-2 mm below the anatomical apical foramen.

Animals↗
PubMedDate not supplied

[Subtotal vital pulp extirpation using different medical preparations (experimental morphological research)].

Pulp stump and periapical tissue reaction to root canal filling with material containing calcium hydroxide and potassium nitrate after subtotal vital extirpation of the pulp was studied in 12 teeth of 6 green monkeys. Use of the material containing potassium nitrate was found to result on the 90th day of the experiment in the formation of a biologic barrier of secondary cement at the dental root apex. Such result was not achieved with calcium hydroxide-containing material. Other advantages of potassium nitrate-containing material were detected, consisting in a more rapid recovery of structural shifts in the pulp stump and periapical tissues.

Animals↗