As per the American Dental Association (ADA) both electric and manual toothbrushes remove plaque and bacteria from teeth, as long as you are using a proper brushing technique. In fact, they said that the technique is more important than the tool. Also, there had been another survey published by the Journal of the American Dental Association where 13,000 patient reported better oral health whose used electric tooth brush during the survey duration out of 16,000 patients.
Electric toothbrush is advantageous for some patients like kids, patients suffering from arthritis who have trouble holding onto a brush or manipulating the movements. Also, electric brushes haves timers so patients know they brushed for at least 2 mins but than is costly, requires charging and is difficult to travel with.
So overall what your dentist at Galerie Dentaire Soleil recommends? Honestly, your dentist team will recommend either of them when used everyday and properly. For manual tooth brush, make sure to use soft bristles, and hold it at 45 degrees to the tooth and gently scrub in circular motion for 2 mins and if you find using electric toothbrush makes teeth more cleaner, apply the same principle.