This tool is use for a less painful tooth extraction instead of the traditional use of brute force or any other practices.
The BenexExtractor designed by a group of Swiss dental surgeons, this cause less pain while preserving the bone and tissue.
https://interestingengineering.com/benex-finds-solution-painful-tooth-extraction
This relates to engineering because this is another way for tooth extractions to be less painful when the tooth is being extracted.
The way the tooth is extracted is called longitudinal extraction. This mechanism is like am pulley to extracted the tooth.
https://www.youtube.com/watch?time_continue=60&v=0ypXj7a3mCw
