Six month cleaning today. All went well. I made sure to do extra huff coughing before visit. Scaling is done "old fashioned way" and not with water spray. I try to make their job as easy as possible by taking as good care of my teeth as possible in-between visits. I used their rinse cup mixed with water and mouth wash. No swallowing so I believe safe from possible germ/bacteria. Hygienist told me that most dentist offices have weighted blankets to calm jittery nerves. I thought that was interesting!