ISO 14457:2017 pdf download.Dentistry — Handpieces and motors
1 Scope
This document specifies requirements and test methods for handpieces and motors used in dentistry for treatment of patients and having patient contact, regardless of their construction. It also specifies requirements for manufacturer’s information, marking and packaging.
This document is applicable to the following:
a) straight and angle handpieces;
b) high-speed air turbine handpieces;
c) air motors;
d) electrical motors;
e) prophy handpieces.
This document is not applicable to the following:
— intraoral camera handpieces;
— powered polymerization handpieces;
— air-powered scalers;
— electrical-powered scalers;
— powder jet handpieces;
— multifunction handpieces (syringes).
NOTE See Annex A for clarification of handpieces and motor types covered by this document.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1797, Dentistry — Shanks for rotary and oscillating instruments
ISO 1942, Dentistry — Vocabulary
ISO 2768-1, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual tolerance indications
ISO 2768-2, General tolerances — Part 2: Geometrical tolerances for features without individual tolerance indications
ISO 3964, Dentistry — Coupling dimensions for handpiece connectors
ISO 5349-1, Mechanical vibration — Measurement and evaluation of human exposure to hand-transmitted vibration — Part 1: General requirements
5.13 Operating controls
The following requirements are applicable for all handpieces and motors described in this document. Operating controls shall be designed and located to minimize accidental activation. Graphical symbols for operating controls and performance shall be in accordance with ISO 9687. By the use of operating controls, dental motors shall be capable of changing speed as specified by the manufacturer. The controls shall be provided at the dental motor itself or at the dental unit. The motor, or motor connected to a dental unit, if applicable, shall be provided with operator controls to allow clockwise and anticlockwise rotation, as described by the manufacturer. The controls shall be provided at the motor itself or at the dental unit. IEC 60601-1:2005+AMD1:2012, 15.1 applies.
5.16.2 Non-metallic chuck system
Handpieces with non-metallic chuck systems shall be capable of accepting rotary instruments of corresponding mandrels of Type 4. The force required to extract test mandrel Type 5 from the non-metallic chuck system shall be at least 12 N. When held in the chuck, test mandrel Type 5 shall transmit a torque of at least 0,008 N·m. Test in accordance with 7.13.
ISO 14457:2017 pdf download
