METHOD FOR DETERMINING DEGREE OF EXPERIMENTAL GINGIVITIS IN WISTAR RATS Russian patent published in 2024 - IPC G09B23/28 A61C3/00 

FIELD: medicine.

SUBSTANCE: invention relates to experimental medicine, in particular to a method for assessing the state of periodontal tissues in laboratory animals, namely Wistar rats. Before performing the index, the animal is immersed in a state of drug-induced sleep (ether narcosis). Index is determined in the area of periodontal tissues of the area of interest by visual inspection and instrumental examination of the state of periodontal tissues. Visual assessment is carried out in conditions of additional lighting. During the visual assessment, the colour of the periodontal mucosa in the experimental exposure area is marked (0 – pale pink, 1 – pink, 2 – bright red/congestive hyperemic). Dental periodontal probe is used for instrumental assessment of the state of periodontal tissues. During the assessment, the following is determined: the degree of periodontal bleeding (0 – does not bleed, 1 – insignificant bleeding during probing, 2 – profuse bleeding during probing), gum consistency (0 – dense, 1 – hypertrophied/loose/swollen), periodontal pockets (0 – no, 1 – present). Index is calculated by formula: PIR = SP/NT, where SP is the sum of points, NT is the number of teeth, PIR is the periodontal index of rats. Interpretation of the index: 0 – no inflammation, 1–2 – minor gum inflammation, 3 and more – evident gum inflammation.

EFFECT: method enables unifying the results of research works related to dentistry and improving the quality of their presentation.

1 cl, 3 dwg, 3 ex