| 摘要 |
FIELD: medicine, hygienic procedures in oral cavity. SUBSTANCE: proposed scraper comprises handle, medium rotating element and working portion, lengths of these three portions being in relationship 3.1:1.0:0.7. Total length of scraper does not exceed 210 mm. Internal angles between its portions are in relationship 1.1:1.0, their sum total being about 257 deg. EFFECT: useful tool for taking care of oral cavity. |
