Can you brush effectively with a non-electric toothbrush? The answer is yes and no. Brushing should be done at least twice a day for two minutes using a method that reaches all tooth surfaces. It's easy to skimp on the full 120 seconds, and an electric toothbrush may help to improve your technique and compliance.Arthritis and certain medical conditions may make it difficult for one to grip or handle a conventional brush. An important feature of most electric toothbrushes is a wide, comfortable handle for ease of grip and several brush head designs to fit comfortably into mouths of any size. For example, models for children will have smaller bristle heads compared to toothbrushes designed for adults. Also, the softness of bristles can be customised. If you have sensitive teeth, you may want to opt for softer bristles.http://www.usekang.net/electric-toothbrush/electric-sonic-toothbrush/