Long Island Straight Smiles
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Long Island Straight Smiles Produces Spectacular SmilesFor top-notch orthodontic care for both children and adults, look no further than Long Island Straight Smiles. We offer state of the art treatment in a warm, friendly environment.

From young children who need interceptive therapy to adults who want inconspicuous treatment, such as Invisalign, Dr. Karen Leavy, Dr. Scott Mateer and Dr. Lindsay Alimena treat patients of all ages, delivering outstanding results that exceed your expectations.One of several recognized dental specialties, orthodontics deals with moving teeth into their ideal position.
Services
We are especially interested in making all of our patients feel right at home! We put your needs first to achieve efficient and comprehensive treatment. Our experienced staff strives to provide energetic and fun loving service to each patient while maintaining the highest level of care.

Our team is committed to incorporating the latest technological advances and treatment modalities into our Straight Smiles allowing us to provide the best possible result and experience throughout your orthodontic treatment.
Reviews (6)
Cynthia Teta
Cynthia Teta
Dec 17, 2021
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Had consultation with Dr. Scott Mateer for braces for my 12 year old son with ADHD, OCD and Anxiety. His canines are impacted so we need to get braces and organize with the Oral surgeon to get his teeth to get into place.
Dr. Scott Mateer was so kind and friendly. The office is clean and bright. All the staff are so friendly and accommodating. I am glad we chose here to get my son braces!
Liz Mckie
Liz Mckie
Oct 22, 2021
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Always a great experience at LI Straight Smiles from start to finish. The staff is friendly and efficient. I have never waited long for our appointment as They run right on time. Dr. Mateer is very personable and fantastic with both my boys. I would highly recommend
Joseph Kopp
Joseph Kopp
Mar 19, 2021
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Great orthodontist office in Massapequa.
Dr. Mateer and his entire staff make visits to there quick, painless, and informative. Wouldn’t want to be treated anywhere else!
Leah Rezza
Leah Rezza
Mar 05, 2021
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My son got his braces here and today my daughter got her braces on. I cannot say enough about Dr Mateer and his assistants. There bedside manner won me over before the braces even got on and then the actual brace process went smoothly. I'm even thinking about getting braces as well. Free consult and no pressure just great service!
Deb Label
Deb Label
Feb 15, 2021
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Dr Alimena is the best! Extremely talented, knowledgeable and very kind - my daughter's teeth are beautiful! Office staff is also wonderful! Highly recommend!
MelaninCurls
MelaninCurls
Sep 21, 2020
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The staff was really friendly and informative. Dr. Mateer was very down to earth and made me feel confident about my decision to get my braces with them. I was recommended to them by a family member and I would definitely recommend to others. Looking forward to this braces journey ahead.