COMPARATIVE ASSESSMENT OF TIME OF STANDARD WEAR AND HYBRID DIAMOND BURS FOR BENCH LOADING

In the field of an orthopedic odontology structural materials, including plastic, metals, various on hardness, are widely applied. The most effective method of their processing is the cutting leading to a wear of rotational tools. When processing solid tissues of teeth or structural materials the diamond grains forming an effective area multiply contact to the processed surface that leads to a wear of the tool. The intensity of wear is defined not by the linear contact processes happening on an effective area of the tool. The complexity of contact processes is caused, including, a wear of diamond powder, various on 74 НАУЧНЫЕ ВЕДОМОСТИ у Серия: Медицина. Фармация. 2019. Том 42, No 1 intensity, and the holding sheaf objects of various nature. The research objective accepted rather assessment of time of a wear of standard pine forests by a graininess of 220-160 microns, 160-125 microns and hybrid pine forests a graininess of 220-160/63-50 microns, 220-160/63-50 microns at bench cutting nickel chrome alloy. The conducted researches proved a possibility of 20 percentage increase in time of a wear due to introduction to a linking of pine forests of a rough and superrough graininess of powder with sizes of diamond grains of 63-50 microns. Ключевые слова: гибридные алмазные боры, время износа, стендовое нагружение, ВладМиВа.