GB/T 36108-2018CAD software technical requirements of fixed dental restoration (English PDF)

3.1 Fixed dental restoration

An artificially made restoration to replace and/or restore part or all defective, missing natural teeth, which patients can't remove or wear by themselves.

3.2 CAD software for fixed dental restoration

A special software system with which an efficient, high-precision fixed dental restoration digital model design can be fulfilled, in the human-computer interactive operating mode, based on the digital dental impression.

4.1 Provision of hardware

The hardware shall be provided as follows.

a) above P4-2.0 and its PC;

b) memory more than 1 GB;

c) mouse and keyboard;

d) 24-speed CD-ROM or DVD-ROM drive or equivalent input interface;

e) dental model three-dimensional scanner or intraoral three-dimensional scanner.

4.2 Provision of software

The software shall be provided as follows.

a) operating system of Windows XP and above;

b) edition of OpenGL 2.0 and above.

5.1 Operating interface

5.1.1 Operating interface of the software shall have a Chinese interface at least; an English interface can also be added if necessary.

5.1.2 The software operating process storage file names shall be file names named in Chinese or time; English storage file names can also be provided if necessary.

5.1.3 The software shall support the retrieval of Chinese file names; the retrieval of English file names can also be provided if necessary.

5.1.4 The terminology used in the software shall be consistent with the terminology of GB/T 9937 and this Standard.

6.1 Operating interface test

Run the software system; check the operating interface.

6.2 Performance requirement test

6.2.1 Prepare standard preparation according to the method of Annex A; use the software to be tested to design even-thickness coping/bridge thickened by 0.6 mm; use a third-party measuring software to cut section evenly (perpendicular to the rotation center direction of base crown model with an interval of 5°); extract the cervical margin line intersection point together with the software to be tested; measure the average of differences between the intersection point and the design curve.

6.2.2 Operators use a stopwatch for measurement; start from the end of scanned single base crown data input and end at the end of design data output; they shall use the functions of even-thickness coping/bridge and cut-back coping/bridge to conduct measurements separately; record the results.

6.3 Function requirement test

6.3.1 Run the software for actual operation to check whether it has the functions including patient information management and tooth position management.

6.3.2 Run the software for actual operation to check whether it has a guided design process and has a backspace function.

6.3.3 Run the software for actual operation to check whether its input-output files include the standard STL data file format at least.

6.3.4 Run the software for actual operation to check whether it has the function of automatic calculation of an optimal path of insertion.

6.3.5 Run the software for actual operation to check whether it has the functions including undercut amount prompt and filling undercut.

6.3.6 Run the software for actual operation to check whether it has the functions including automatic or semi-automatic extraction of preparation cervical margin line, and cervical margin interactive modification.

6.3.7 Run the software for actual operation to check whether it has the function of regional parametric adjustment of thickness of adhesive and crown.

6.3.8 Run the software for actual operation to check whether it has the function of restoration thickness prompt and the function of automatically adding to minimum thickness. […]