Poor man's teeth water flosser?

Just fill your mouth with water and swish it around, before you brush your teeth. I've had two Waterpiks, one being a warranty replacement for the first. I can't be bothered to send the second one back, disappointing waste of space.

Even poorer man's false teeth. When you are familiar with handling hot-melt glue, particuarly the way on cooling it retains a certain amount of plasticity when down to just above room temperature, or monitor with IR thermometer. Mix some small bits of kids wax crayon , white, yellow , salmon etc into some translucent gluestick to match your own teeth colour melted and mixed with old low temperature soldering iron. Remelt and lay in some thin silicone rubber sheet and when down to near room temperature squash into the tooth gap. Don't do this if the gap is tapered in the wrong way, ie impossible to slide out. Fettle and tidy up the resulting partial or group of teeth, allowing some overhang to lock with the exiting tooth edges. May require chewing gum to hold in place, often not required.

I use one of these:-

Are the batteries readily replaceable? The Waterpik can be if you can get around to disassembling it and re-solder the pathetic batteries it comes with.

I had a mains power Waterpik and that was quite good. When it expired I purchased the battery version which IMO is far inferior with regards the strength of the water jet and it's effectiveness.

No idea, for £20 and over 2 years use I'd just buy another one. The other components are probably in a non optimal condition anyway.

I'll look out for one. Not only was the Waterpik useful for teeth it also was useful for cleaning out small crevices or the heads of electric toothbrushes.

I've used one to clean a number of things. It was jolly useful the last time I dismantled the bathroom extractor fan, it was filled with the usual crud.