More powerful than a regular dental jet, but discontinuous, it is very useful to me for the interdental spaces of the molars, where it is difficult to pass dental floss (difficult access) For incisors, personally I avoid because I hurt myself (bleeding), because my interdental spaces are too narrow at this level (but easy access to dental floss). We must aim well and put the nozzle in contact between two teeth. No power control. I used a mixture with 1/3 dental lotion 2/3 tap water. A filling allowed me to tour all my dental spaces, and even several times, I never felt the need to recharge the water to finish my session. Electrically, its durability is very good (2 weeks reported in other reviews have checked with me). This induction charging (no electrical contact exposed). It contains a Li-ion, apparently not replaceable. Its construction dissuades us rinse it with water. It is designed to stand up, when there is no flat surface to hold it horizontally. Surprising, risk of damage if dropped. It is progessivement failed, with the engine crashed occasionally. To a stop, even fully charged. Household vinegar for descaling attempts are nothing. The problem must come from elsewhere, internal mechanics. Back to service after 2 months of use (about 60 uses). I await his return SAV ...
