Today I started my Invisalign treatment and it was a fantastic experience. As a general dentist myself, I can appreciate the way Dr. Kleinrock explains everything clearly, works gently and efficiently. I already knew how terrific he was with children because my three daughters have been happy patients of his for some time. But after today, I can personally attest to the fact that he is also fantastic at treating adults who want to straighten their teeth. Dr. Kleinrock, as well as his amazing staff, have always been most accommodating, professional, and warm. I refer all my patients for orthodontic treatment to Dr. Kleinrock, and will continue to do so. I highly recommend his office. Great place to be!

Dr. Kleinrock is a dental genius!! I had braces many years ago but after getting them off, I failed to wear my retainer everyday. Over the years, I developed a gap. I went back to my old ortho and several other new ones, but they all gave me the same option, braces again. This wasn't an option for me. On my first visit to Dr. Kleinrock, he was able to make me a retainer which closed the gap in only one week!! My Mom and I kept saying how amazing it was that it closed so fast. I am so grateful to have a perfect smile again. He also made me a retainer to wear to ensure that the gap stays closed. Kudos to Dr. Kleinrock and his amazing team!!

I've been to another orthodontist before. It wasn't such a great experience. From the first time we walked into Dr. Kleinrock's office, we have had a wonderful experience. I got my braces on in April 2016. Over the next 6 months I was getting sores around the inside of my mouth. I visited the office on a regular basis and Dr. Kleinrock listened to my concerns and was awesome. I now am wearing the Invisalign and no more sores. Everyone in the office is so nice and kind. My brother and sister are also patients and we never have to wait to be seen. My mom loves it there too, and it's a good thing because she will be continuing to bring us there for many, many years. (My brother is 8) Thanks to Dr. Kleinrock and his entire staff for everything. There isn't s better place to go !

I had an amazing experience with Dr Kleinrock! He just goes above and beyond for his patients!!! We were in DC when someone broke into our car and stole my daughters bag which among many other valuables had her brand new retainer in it! She called Dr Kleinrock and he met us at his office at midnight !!!! — (because she was leaving for SUNY Binghamton the next morning). His lovely wife kept us company while he prepped a brand new retainer for my daughter ! THIS IS AN AMAZING DOCTOR WITH HEART! He is the real deal —KLEINROCK ROCKS🎸🎸🎸🎸🎸

Both of my girls have been treated by Dr. Kleinrock; one had Invisalign and the other traditional braces. It has been a wonderful experience coming to Dr. Kleinrock's practice. The office staff is so friendly and professional, which really makes a difference when you need to come so many times over the years. Dr. Kleinrock is obviously highly skilled and experienced, and is likewise very easy to work with. It is obvious that he cares deeply about his work and office, and that is obviously reassuring for parents who care deeply about their children. Kleinrock Orthodontics is one of Hewlett's crown jewels. My advice to friends is to take the stress out of dealing with children's orthodontic needs and just go to Dr. Kleinrock- do it right the first time.

I just wanted to let anyone who is thinking about doing Invisalign, to do it!!!! And if you are going to do it there is no better place to go than to Dr. Seth Kleinrock's Office. He is one of the best at his trade. His staff is extremely friendly, conscientious and professional. It is a pleasure going to their office. If you are able to view my before and after pictures on his website, that would say it all!!!! I am extremely satisfied with my results. They blew my expectations away!!!!

I highly recommend Dr. Kleinrock. Both my children have gone to Dr. Kleinrock for braces... there teeth are perfectly straight and look amazing. Not only is he terrific Orthodontists..... his office staff is terrific too. They make you feel welcomed and like your family, such a pleasure to deal with.... Now that my daughter has her braces off and so happy with the results....I'm going to miss seeing everyone at the office.

I was referred to Dr Kleinrock by my sisters . 4 of my neices and nephews went to him and raved about how great he was so I was ready to take the plunge. The thought of braces as an adult was depressing but I had been at a wedding and saw a picture of myself and I was disappointed how bad my teeth shifted. I made the appointment to see Dr K, he has 2 southshore offices and I went to Lynbrook/Hewlett location. Parking is easy. Right a way the receptionist and the crew behind the desk make you feel so welcomed. The office is full of cool movie and sports memorabilia to take your mind off the fact that its braces time. Every dentist chair has a tv and a remote to make you feel at home in case you have to wait for Dr Kleinrock but I have never waited in the reception area or in the chair in fact I usually spend more time in the office being entertained by the girls who work for Dr K after my appointment is over. I opted for invisalign at the recommendation of Dr Kleinrock and I can honestly say it was the best investment I ever made for myself. My health insurance did not cover me and Dr Kleinrock offered a payment plan that was amazing. I would have paid more if I knew how much better I was going to feel. I still have months of invisalign to go but two things I know for sure, Invisalign is amazing and you're going to love Dr Kleinrock. My only regret is not going to him sooner.