Very thorough and gentle. Cleaning my teeth with water pressure is so much more effective and comfortable than the "scrape and dig" method of my previous dentist. She very thoroughly examined an area of discomfort, and also checked my "pocketing" which has greatly improved since I started flossing more regularly at her guidance. (The above refers to Jule Pizzo, the hygenist worked on my teeth yesterday. Also was very pleased with Dr. Grace Lo, who diagnosed the root cause of my discomfort: overly aggressively chewing gum when stressed. I also give Dr Lo. 5 stars out of 5.