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One of the biomaterials used in veterinary dentistry is hydroxyapatite (HAp). It aids the biological process of bone reconstruction and provides the basis on which damaged tissues can be rebuilt. It is also exceptionally osteoconductive and bioactive towards bone and other tissues. The aim of the present study was to verify the usefulness of hydroxyapatite microporus ceramics for the treatment of periodontal diseases and post-extraction defects. The study was performed on 40 dogs. Dogs were qualified for the in vivo test: 2 study groups and 2 control groups (K1, K2) were created. Group G1 comprised 10 dogs diagnosed with periodontitis with 4-8 mm gingival pockets and mobility of mandibular/maxillary incisors. In order to avoid extraction, hydroxyapatite implantation into the bone pockets was performed. Group G2 comprised 10 dogs that required the extraction of maxillary canines, following which biomaterial was introduced into the post-extraction cavities. Control groups were performed without using of microporous hydroxyapatite. In group G1, animals displayed significant shallowing of gingival pockets. The mean depth of pockets was significantly reduced in those dogs and considerably better reconstruction of periodontal tissues was observed when compared to the control group K1. In group G2, significantly faster healing of bone cavities was stated when compared to the respective control group K2. The study confirmed the validity of using microporous hydroxyapatite granules and shaped blocks in reconstructive periodontal treatment as well as prevention of oronasal fistulas after canines extraction and facilitation of the post-extraction healing process.
The study was aimed at the preliminary clinical assessment of the anti-cancer efficacy of a dietary supplement based on the extract of habanero peppers containing capsaicin in dogs with primary hepatic cancer. 24 dogs with primary hepatic cancer, divided into two groups, were followed up during the study. Group I included 16 dogs receiving a dietary supplement based on capsaicin-containing habanero peppers, while group II consisted of 8 dogs that did not receive any veterinary treatment. The dogs were subjected to clinical examination, ultrasound imaging as well as biochemical and haematological analyses. Patient survival was determined in both groups. An autopsy was performed in all animals that died or were euthanised, and tumour samples were collected for histopathological examination, on the basis of which the type of neoplasm was finally determined. Survival of dogs in group I ranged from 54 to 285 days (178.6 days on average). Survival of dogs in group II was 32-128 days (76.5 days on average). In none of the dogs classified to group I that had single tumours did the size of the lesion increase during supplement administration, and in the case of two dogs that were receiving the preparation for a long time (188 and 285 days), their liver tumours actually shrank. In all dogs from group II that had single tumours, the size of the lesions increased in the course of the observation. The preliminary clinical observations by the authors indicate that the capsaicin-containing habanero pepper extract exhibits favourable effects on liver tumours in dogs and is well tolerated by the animals, thus the obtained results are a good sign for future studies on alternative medications used in dog oncology.
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