To Helen Spence: Gaylord Rough's suggestion of an Interplak electric toothbrush is good, but we feel not the best. My wife and I have been using Interplaks for about 8 or 9 years and there is no doubt they do a wonderful job of cleaning. We are now on our 5th unit, which points out the problem. We have found that Interplaks are good only for about 6 months before they have to be returned for repairs. Basch & Lomb, the manufacturer, will repair them during that time (the problem is always the battery quits holding a charge). But when you send a unit for repairs after the one year warranty, they write back and say the unit is not repairable and offer to sell you a new unit for about the same price as the discount houses charge. Last year we decided that maybe Consumers Reports was right and the Oral B electric plaque remover was a better unit and we purchased one about a year ago. We like the Oral B much better. It does an equal or better cleaning job than the Interplak and holds about 10 times the charged time. We are currently using both the Interplak and Oral B concurrently until this Interplak "dies". Hope this will be of some help. Bill Butch ([log in to unmask])