PERIODONTAL TISSUE DESTRUCTION ASSESSMENT METHOD Russian patent published in 2017 - IPC A61C3/00 

Abstract RU 2617291 C1

FIELD: medicine.

SUBSTANCE: for periodontal evaluation in the tooth region, a graduated probe is immersed between the tooth and the gum until stop. Depth h of the periodontal pocket and depth H from the stop point to the tooth enamel-cement boundary is determined. Periodontal degradation index (PDI) is determined depending on PDI = H/h, at that light periodontitis corresponds to PDI digital values in the range of 0.02 to 0.2, moderate periodontitis - to PDI digital values ranging from 0.3 to 1 0, severe periodontitis - PDI digital values ranging from 1.1 to 3.0 or more.

EFFECT: method can reduce complexity and increase survey objectivity.

4 dwg, 2 ex

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RU 2 617 291 C1

Authors

Ippolitov Yurij Alekseevich

Petrov Igor Yurevich

Korovkina Anna Nikolaevna

Korovkin Vladimir Vladimirovich

Ippolitov Ivan Yurevich

Chan Chong Chung

Petrov Aleksandr Igorevich

Dates

2017-04-24Published

2016-02-02Filed