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Meet Our Doctors

A Great Smile Radiates Great Vibes

Dr. Brothers and Dr. Sinclair
Our orthodontists

We Love Serving Smiles

Our orthodontists are board-certified, meaning they’ve gone above the standard requirements for orthodontists and are well-equipped to treat any smile!

Dr. Kristin Brothers

DDS

As a mom herself, Dr. Brothers knows how important convenience and efficiency are and delivers exactly that at Beach Cities Orthodontics. She grew up in the South Bay and loves to serve her local community through tailored treatments that fit your lifestyle, goals, and budget.

Dr. Brothers has extensive experience with complex, surgical orthodontic treatment and clear aligner therapy. She also likes to make treatment fun so appointments seem less like a chore and more like a fun visit with friends! Whether you’re a kid or an adult — we’ve got a solution for you and guarantee you will love your smile.

Dr. Brothers comes from a dental family, including both her parents who practiced general dentistry in Torrance for over 35 years (now retired), and her husband who is an Oral and Maxillofacial Surgeon. When she’s not in the office, she loves to ski, hike, travel, and dabble in creative projects including painting and video making. You’ll often find her out and about in the South Bay with her husband, two kids, and two dogs — please say hi!

Education
  • University of California San Diego, Undergraduate
  • University of California San Francisco, Doctor of Dental Surgery
  • Vanderbilt University Medical Center, Residency in Orthodontics
  • Diplomate of the American Board of Orthodontics, The Highest Level of Clinical Achievement
Achievements
  • American Association of Orthodontics Award
  • American Academy of Oral & Maxillofacial Radiology Award
  • Robert W. Rule Award for “Highest Potential to Succeed in the Dental Profession”
  • Published First Author in the American Journal of Orthodontics & Dentofacial Orthopedics for Her Research
Memberships
  • American Association of Orthodontists
  • American Board of Orthodontics

Dr. Peter Sinclair

MSD

Dr. Sinclair has been creating beautiful smiles and great vibes since 1981, which means he’s achieved over forty years of experience, but most importantly, hundreds of beautiful smiles.

The key to our success is communication because when our team understands your needs and comfort, we can personalize your treatment to fit your lifestyle. At Beach Cities Orthodontics, Dr. Sinclair aims to create a unique experience that combines the highest quality treatments in a friendly, inviting environment.

Whether you’re dreaming of straighter teeth for yourself or want to schedule a check-up for your child, Dr. Sinclair is here for you and your family.

Education
  • Baylor University Medical Center in Dallas, Doctor of Dental Surgery
  • University of Washington in Seattle, Orthodontic Residency & Masters Certificate
  • Diplomate of the American Board of Orthodontics, The Highest Level of Clinical Achievement
Experience
  • 16 Years in this Private Practice
  • 25 Years in Academics
Achievements
  • University of Southern California, Professor & Chairman of the Department of Orthodontics
  • Trained Many of the Orthodontists Currently Practicing in Southern California

Get Started On Your New Smile Right Now!

Our mission is that we always strive to provide the perfect patient experience for your entire family. We can’t wait to help you get started on your smile!

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Braces
Experience 5-Star Care
Our Reviews

Experience
5-Star Care

We will always take time to make sure you’ve been seen, heard, and treated with the highest level of care. Hear what our patients have to say about their 5-star experiences!

Helty A
My daughter has an excellent experience at Beach Cities Orthodontics! Doctor Brothers, Dr. Sinclair, and their staff are so amazing—friendly, gentle, informative, and efficient! The office is very nice, clean, bright and welcoming. My daughter was initially terrified of getting braces, but everyone here made her feel at ease and were so gentle during process and she was not scared anymore and thought it was much better than she had anticipated. Every visit after that has been so easy and pleasant, too. The whole process has been so smooth, from the consultation, the financing options, to the braces procedure itself. I highly recommend Beach Cities Orthodontics; I will definitely have my younger daughter come here too if she will need braces in the future.

7/15/2025 update: Exciting day today! My daughter got her braces off after 15 months and her teeth look so great! My friends said she has a million-dollar smile! The process of removing the braces was painless and smooth and she received a nice treat at the end. Dr. Brothers and her staff really made her feel special! Thank you Beach Cities Orthodontics for making my girl beautiful! She is now going to wear her retainers at night and will have her next check-up in 6 months. I am so grateful that my girl’s dentist referred me to Dr. Brothers & Co.!
Response from the owner:Hi, Helty. Thanks for taking the time to share your positive experience. We truly appreciate it!
Paola B.
We relocated to the area a few months ago, and I was looking for a good orthodontist for my son. I came across an ad from Beach Cities Orthodontics offering $750 off for retainers, expanders, or other procedures. I reached out, and from the first interaction, the team was incredibly friendly and welcoming — just what every parent hopes for.

Now, I’m writing this review six months after my son had his expander placed, because I like to give honest feedback based on real experience over time. And I can confidently say: I’m really happy we chose Beach Cities Orthodontics.

Let me clarify — we didn’t receive the $750 discount yet, as it only applies to the second stage of treatment (which will be braces), not the expander. While that was a little confusing at first, I still feel the care and professionalism we’ve experienced make this place absolutely worth it.

The way they treat their young patients is amazing. They’re gentle, encouraging, and make the whole process smooth and positive — not just for the kids, but for the parents too. When my son is happy, I’m happy.

The staff, the orthodontist, and everyone in the office truly go above and beyond. I have so many good things to say, and I’ll continue to share more as we move forward in the treatment process. For now, I just want to say thank you to the entire team for making us feel so well cared for.
Emily N.
We’ve had a great experience with my son during his first phase of braces. We plan to continue for phase 2 when he’s ready. My daughter just got braces as well and so far it’s been a very smooth experience.
Response from the owner:Hi, Emily. Thanks for taking the time to share your positive experience. We truly appreciate it!
Lauro A.
Initial consultation was awesome and everyone was friendly. Going back in a week to begin my Invisalign journey! *Update - 12 weeks into my treatment and it is going perfect and I am glad I decided to get Invisalign and at this location*

Final review after Invisalign was removed. Super happy and glad I came here to get treated. Thanks to everyone in the office!
Response from the owner:Hi, Lauro! Thank you so much for taking the time to share your experience! We're thrilled to hear your journey has been a positive one from start to finish. Our team works hard to create a supportive and welcoming environment, and your kind words mean the world to us. Wishing you all the best and lots of reasons to smile! 😄🦷✨
Kathryn M.
I love Beach cities orthodontics because they are so nice and they have a great attitude. I think that this place is the best place to get braces on and off. I feel like every time I walk in the room I feel welcomed. That is why I love beach cities orthodontics. On 1 to 5 stars I would give then 10 stars. - Brooklyn + Cali age 10
Response from the owner:Wow — thank you, Brooklyn + Cali! Your kind words truly made our day. We’re so happy you feel welcome here and had a great experience. A 10-star review?! We’re honored! 💙😁🌟
Cheryl V.
I’m giving Stephanie a 5 star! She is the most caring, warm hearted and a very patient person. She is a gem and an absolute asset to the team. Thank you so much for all that you do. Good luck and more blessings to you.

Dr Brother’s , thank you for very accommodating and kind. Blessings to you, your family and your Team!
Response from the owner:Thank you, Cheryl, so much for your kind words! We are so lucky to have Stephanie on our team—she truly is a gem and brings so much heart to what she does. Your appreciation means the world to all of us. Wishing you many blessings in return!
Erica D.
Working with Lanice and her team was nothing short of extraordinary! They exceeded every expectation with their unwavering professionalism, flawless punctuality, and impeccable organization. What truly set them apart was their vibrant, positive spirit — they brought such warmth and energy to every interaction. Their diligence, attention to detail, and commitment to excellence were evident in everything they did. Lanice and her team made what could have been a stressful process feel seamless and even enjoyable. They are a rare find — dedicated, polished, and genuinely passionate about delivering the best. I wholeheartedly and enthusiastically recommend them to anyone seeking the very best!
Response from the owner:Thank you for your glowing review! It's wonderful to hear that our team made your experience enjoyable and stress-free. We appreciate your recommendation and look forward to continuing to provide exceptional care.
Krista R.
Getting the best adult ortho care here! Everyone is great! Doctors and staff are really amazing.
Response from the owner:Thank you for your wonderful feedback, Krista! We’re thrilled to hear you're receiving excellent care from our dedicated team. Your satisfaction motivates us to continue providing exceptional orthodontic services.
Elena Duenas M.
So far I have loved my experience at Beach Cities Orthodontics!! The staff and doctors are extremely knowledgeable and kind and are so happy to help me get my smile wedding ready!
Response from the owner:Thank you so much for your wonderful review, Elena! We're thrilled to hear that our team has been able to help you prepare for your big day. Your satisfaction is our priority, and we look forward to continuing to support you on your journey to a beautiful smile!
Adriana B.
Dr. Brother's and staff at Beach Cities Orthodontics have been nothing but patient, empathetic and gentle with my 8 year old. Didn't know what to expect going into Orthodontics but the team at BCO has made it a breeze. It's very comforting to known that there's someone always a phone call away if there's a question or concern. I highly recommend Beach Cities Orthodontics for all of your Orthodontic family needs!
Response from the owner:Thank you, Adriana, for your wonderful feedback! We’re delighted to hear that Dr. Brothers and our team have made your child’s orthodontic experience comfortable and supportive. Your recommendation means a lot to us!
Marra O.
Highly recommend. My son has been going to beach cities orthodontics for a couple of years. Every appointment he has is very quick and efficient. He opted for the Invisalign over braces. His teeth look absolutely amazing. The staff is also amazing.
Response from the owner:Thank you for your wonderful review, Marra! We're thrilled to hear about your son's positive experience with us and that he's happy with his Invisalign results. Our team strives to provide quick and efficient care, and we're glad you recognized their efforts. Your recommendation means a lot to us!
Ketrin O.
My daughter was a patient here, and now my son is as well. We always feel so welcomed and cared for! Highly recommend this place!
Response from the owner:Thank you for your wonderful review, Ketrin! We're thrilled to hear that both your daughter and son have had positive experiences with us. Your recommendation means a lot to us, and we look forward to continuing to care for your family!
Jorge H.
Really great doctors and staff. They are always available from the start to the end! I highly recommend this practice!
Response from the owner:Thanks so much for your 5-star review, Jorge! Congratulations on your beautiful smile. It has been such a pleasure to have you part of our orthodontic family!
Richard S.
I can’t say enough positive things about my experience at Beach Cities Orthodontics! From start to finish, the entire process was so smooth and easy. Lanice, the office manager, went above and beyond to explain the process for insurance reimbursement, making everything so clear and stress-free. Every time I walked into the office, she greeted me warmly and even took the time to chat with me about my day—it made me feel so valued as a patient.

The entire staff is incredible—friendly, attentive, and detail-oriented. Dr. Brothers is truly a master at what she does. Her expertise with aligners is unmatched, and I always felt confident I was in the best hands.

If you’re looking for top-notch care, I 100% recommend Beach Cities Orthodontics. You won’t be disappointed!
Response from the owner:Thank you so much for your kind words! We’re so glad to hear that Lanice and the team made your experience smooth and stress-free, and that you felt confident in Dr. Brothers’ care. Your recommendation means the world to us, and we’re grateful to have been part of your smile journey!
Alli R.
I have twin boys (one with ADHD) who are starting their braces journey and I could not be happier with the results! The staff is incredibly kind, patient and most importantly, professional in every way. They are truly putting my children's needs/experience ahead of just turning a profit. Highly recommend!
Response from the owner:Thank you so much for sharing this, Alli! We’re thrilled to hear you’ve had such a positive experience with our team and our office. Taking care of our patients’ needs always comes first, and it means a lot that you noticed. Thank you for trusting us with their care and for recommending us. We truly appreciate it!
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When you come to visit us, we want you to feel like you’re riding the wave of a great smile with a perfect patient experience. We can’t wait to meet you!

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Torrance

  • 23451 Madison St. Ste. 130
    Torrance, CA 90505

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  • (310) 375-0001

Contact Hours

Monday 8:00am – 5:00pm
Tuesday 8:00am – 5:00pm
Wednesday 8:00am – 5:00pm
Thursday 8:00am – 5:00pm
Friday Closed
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