As you are making a purchase decision, we suggest that you take the time to read some 4100 Sonicare Advance reviews in order to see what other consumers have to say about the product. Here are some user reviews to help you make your shopping decision:

I am on my second Sonicare and I got my first when I was pregnant with my 10 year old! Cleans great! People speak of the cost. This is cheap compared to the investment in dental work if not used. These don't even compare to a regular tooth brush. Make the investment in your teeth and you will be thankful.
-D. Roberts (4100 Sonicare Advance user review from Amazon.com)

I am a dental hygienist and have seen many results from the use of various electric brushes. Sonicare far outways its competitors especially for helping to stabilize periodontal disease in conjunction with a 2-4 month visit for perio maintenance. If the tissue is healthier with normal 'pocket depths,' then the Braun products, or manual toothbrush used with good technique are fine; but overall, they still do not leave the tissue as healthy (firm) as the Sonicare. In all cases, the areas between the teeth need regular attention, ie floss, go-betweens, proxybrushes, stimulators, or other effective tools which stimulate the gums and break down bacteria. The main ineffectiveness of the brush has NOT to do with the brush, but with its inconsistant use, or poor technique by its user. The main patient complaint I have gotten is that the brush is too vigorous for them, but those complaints are few compared to those who are pleased. Hygienist's opinions vary, so ask yours for an assessment.
-"A Customer" (4100 Sonicare Advance user review from Amazon.com)

Back in 1997, I thought I was doing a good job brushing my teeth with a manual brush once a day. However, I hadn't had a dental checkup for quite some time due to being a poor college student. So when I finally graduated and got a decent job with health benefits, I figured it was time to schedule an appointment. To my horror, the dentist said that my teeth were a mess, and that I needed to have immediate deep cleaning, with further work and checkups done every three months. She also recommended I buy a Sonicare toothbrush and some floss.

I immediately complied and began using my Sonicare twice a day, along with flossing in the evening. When I went back three months later, she was amazed at how much my oral health had improved. My teeth looked better, I had a lot less plaque build-up, and my gums were pink and healthy. She revised her initial diagnosis and said I was OK to resume a normal checkup/cleaning schedule every six months. Whew.

Of course, I've used a Sonicare ever since. I had to replace my first one due to charging failure, but I figure one blowout in nine years isn't so bad. The only usage issue I had was learning to let the brush do the work instead of pressing it down. I was counseled to merely hold it in place and let the bristles glide over my teeth and gums. That, along with toothpaste for sensitive teeth, helped ease the discomfort I was feeling after inadvertently brushing too hard. The two-minute auto shut-off is helpful, since it ensures a consistent and effective brushing period.

If you haven't started using a Sonicare toothbrush yet (or something similar), then take the plunge. Make sure you replace the heads when they wear out in order to maintain maximum cleaning power (it's kind of easy to put that off). I wish they had been around when I was a kid, since I endured tons of painful dental work done that could've been prevented. The Sonicare helped save my adult teeth, and for that I give it my highest recommendation.
-E. Olson (4100 Sonicare Advance user review from Amazon.com)

I consider myself to be enough of a minimalist that the idea of an electric toothbrush seemed excessive to me. When my friend raved about hers (she has used hers for 5 or 6 years now) she said that it changed her life. I gave it a shot, and it took about a week or two before it didn't feel really weird but now I absolutely love it. On the occasions that I use a regular toothbrush my teeth simply don't feel clean like they do when I use my sonicare. I love this toothbrush and and feel it is well worth the investment.
-J. Lawson (4100 Sonicare Advance user review from Amazon.com)

I compare using this toothbrush with just having my teeth cleaned by a dentist. I originally bought a Sonicare for my husband and it worked so well we bought the extra heads and we share the same base. Now he is traveling so much that I want my own base. It is several years old and still brushing very well, neither of us having any complaints. In fact, we were both so happy with the results, that I bought my father one as well. The next time my dad went for his usual cleaning, the dentist was amazed at how clean and nice looking his teeth were. As a daily coffee drinker, my dad would have bad coffee stains on the inside of the teeth, that the dentist would have to work at to remove. Since he got the Sonicare, cleanings are much more pleasant and less work. For smokers, the Sonicare will remove stains if you use it on a regular basis. It's truly amazing what this brush can do and it's worth the money. I don't think it matters which particular model of the Sonicare you get. Sure it sucks that the battery can't be replaced but if it lasts you for approx. 4 years, isn't that worth it? I proudly recommend a Sonicare to everyone.
-Amy (4100 Sonicare Advance user review from Amazon.com)

I have used this product for a week and already my teeth look and feel cleaner than they ever have. I feel like my teeth have been cleaned by the dentist. This toothbrush does what the maker claims it does. I highly recommend it. It's great!
-Jimmy1946 (4100 Sonicare Advance user review from Amazon.com)

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