What people in the Netherlands found was that an ebike would allow them to do errands up to a distance of about 15km whereas with a pedal bike the distance was more like 5km before they would take their car.

My experience is similar. Ebikes in practice are more like a smaller car than they are like a bigger bike, when the roads or bike paths are suitable.

For the past three years I've used an Oral B electric toothbrush without any improvement.

And then last January I made two changes that have made a huge change in my plaque situation (verified by my hygenist of three years).

First I upgraded my electric toothbrush to the Oral B 4000, which has noticeably more power, at Christmas. And second I changed my brushing technique. Instead of brushing flat against my teeth I now brush the gum line at my teeth and rotate the brush head to a 45 degree angle down at the gums. I then move the tooth brush back and forth over sections of teeth. Typically side or front though the backs if the front teeth require a slightly different approach.

After these changes my hygenist noticed a big improvement in my gums. I also reduced my flossing but when I do floss now theres very little pain, bleeding or swelling unlike before.

Your mileage may very but if you have plaque problems you might save on hygenists.

In theory, practice and theory are the same. In practice, they're not.