Dental file

The invention provides a dental file, which can improve the flexibility, the machinability and/or the fracture resistance of the dental file. The dental file (100) has a cross-sectional shape comprising an arcuate section (111) and first to third linear sections (112-114) that are sequentially conti...

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Bibliographic Details
Main Authors YOSHIZAWA YUTO, MATSUTANI KAZUHIKO, OGINO MASAMITSU, TOYODA MASAHIRO, KOBAYASHI HIROAKI, YAGI HIROYA
Format Patent
LanguageChinese
English
Published 22.04.2022
Subjects
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
DENTISTRY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Summary:The invention provides a dental file, which can improve the flexibility, the machinability and/or the fracture resistance of the dental file. The dental file (100) has a cross-sectional shape comprising an arcuate section (111) and first to third linear sections (112-114) that are sequentially continuous from the arcuate section (111), and the diameter of an imaginary circle (101) including the arcuate section (111) is set so as to decrease from the base end to the tip end. A connection point (122) between the first linear section (112) and the second linear section (113) and a connection point (123) between the second linear section (113) and the third linear section (114) are set to be located further inward than the virtual circle (101), and an angle (A11) formed by the diameter of the connection point (121) and the first linear section (112) is set to become larger from the base end to the tip end. 本发明提供牙科用锉，提高牙科用锉的柔软性、切削性和/或抗断裂性。在牙科用锉(100)中，横截面形状由圆弧状部(111)以及从其依次连续的第一线状部～第三线状部(112～114)构成，包括圆弧状部(111)的假想圆(1
Bibliography:Application Number: CN202080063184