Dr. Haider

Dr. Haider has been featured on the local news station to address oral hygiene tips for young children. She enjoys working with kids and their parents on developing and fostering good oral hygiene habits from a young age. There is a colorful, kids-themed treatment room for children where their favorite movies play while their oral needs are addressed.

Welcome To Allen Institute of Dentistry & Orthodontics

We extend a warm welcome from our Allen office to you and your family!

At our Allen Dental Office we go the extra mile for you so it can be a relaxing and enjoyable experience!

Each treatment room has its own TV above the chair and another screen for viewing treatment details. Free Wi-Fi is available throughout the office. Enjoy some refreshments at the beverage bar in the reception area. Toys, books and entertainment are available in the kids area so everyone has something to do. Finally, the soothing atmosphere will help you relax so you can focus on your oral health needs. We believe the difference is in the details because you are our priority. Our state of the art technology provides painless injections that patients are raving about!

Call today to schedule your appointment iin our Allen office for you and your family!

We are look forward to meeting you!

– The Allen Institute of Dentistry & Orthodontics Team

We’ll Provide You With That Winning Smile!


Why choose us?


  • We understand that you are busy with work/school/family.
  • So we offer early morning, evening and weekend appointments.
  • Same-day emergency appointments
  • Family block appointments


  • Monthly payment plans
  • Accepts local insurance plans.
  • Will verify and file insurance on your behalf.
  • For our patients without insurance we offer Allen Smile Saver Plan so that you can have the care you need.


  • State of the Art Technology for comfortable injection.
  • Heated neck pillows
  • TV in treatment room
  • Soothing aromas
  • Kids play Area
  • Complimentary refreshments
  • Internet bar

Appointment Preference

Our Staff will call you about your appointment preference.

Our Location

Find us on the map

Hours of Operation

Our Regular Schedule



10:00 am-7:00 pm


7:00 am-4:00 pm


7:00 am-4:00 pm


By Appointment Only


7:00 am-4:00 pm


8:00 am-1:00 pm

Two Saturdays a Month



Meet Our Staff

Learn Who We Are

  • Dr. Haider

    Dr. Haider grew up in upstate New York and obtained her bachelor’s degree in software engineering from the school of computer science at McGill University in 2005 in Montreal, Canada. In 2009 she graduated from Stony Brook University School of Dental Medicine on Long Island. She completed a general practice residency in 2010 at St. Lukes Hospital. Read More

  • Susan Sizemore - Office Manager

    Susan Sizemore is a Texan native where she has spent all her life. She was born in Dallas and raised in a very small east Texas town. Her southern upbringing has molded her in to a people person. Read More

  • Denise Guyton, RDA

    Denise is Registered Dental Assistant that was born in Texas. She has lived here all her life and loves it!Family is very important to her and loves spending time with her grandson and grandaughter.In her spare time she likes to cook and also caters various events. Read More

  • Brandy Jones, RDA

    Brandy is a Registered Dental Assistant with 15 years of experience in this exciting field of dentistry. Her smile is big, and her personality is even bigger. Read More

  • Bev Favila, RDH

    Bio Coming Soon


What our patients say about us

    Always so friendly! Good with making sure I'm comfortable and in no pain.

    Cody Parker

    Always so friendly! Good with making sure I'm comfortable and in no pain.

    Jourdan B

    This is my favorite dentist... My root canal went really well, and every past visit has been positive.

    Abigail Goss

    It was great! The people are very friendly and Dr. Haider is amazing. I have had a good experience each time I come. I would definitely recommend!

    Janai Phillips

    Dr. Haider was great with our 6 month old! She was gentle and took the time to explain to me what we can do to help our Daughter start off in the right direction when it comes to her teeth. The office was nice and clean and the staff was also very nice!


Featured Articles

Read about helpful topics

  • How Long Does the Coronavirus Live on Surfaces?

    The coronavirus that causes COVID-19 mainly spreads from person to person. When someone who is infected coughs or sneezes, they send droplets containing the virus into the air. A healthy person can then breathe in those droplets. You can also catch the virus if you touch a surface or object that has ...

    Read More
  • The Power of Hand-Washing to Prevent Coronavirus

    The single most important piece of advice health experts can give to help us stay safe from COVID-19 is this one: Wash your hands. "In the final analysis, it's the hands. The hands are the connecting piece," says Elizabeth Scott, PhD. Scott co-directs the Center for Hygiene and Health in Home and Community ...

    Read More
  • Do I have COVID-19 or a cold?

    Do I have COVID-19 or a cold? If you don't have a fever and your eyes aren't itchy, it's probably the common cold, not COVID-19. Do I have COVID-19 or allergies? It's probably allergies -- not COVID-19 -- if you don't have a fever but your eyes are itchy, you're sneezing, and you have a runny nose. How ...

    Read More
  • How to Weather Social Isolation

    Social distancing has become the new normal, with one-third of Americans now under stay-at-home orders due to the coronavirus pandemic, but experts say that level of isolation can be hard on your health. "We don't know for sure what the long-term health outcomes of widespread forced social isolation ...

    Read More
  • Coronavirus: What You Need to Know

    The new coronavirus epidemic that started in Wuhan, China, in late December is now in dozens of countries, including the United States. Here are answers to key questions about the virus, including how to protect yourself and what to expect. What are the symptoms of coronavirus? According to the CDC, ...

    Read More
  • Coronavirus: Is It Safe to Get Deliveries?

    With more than 50% of the U.S. population living under stay-at-home restrictions, companies that deliver food and household goods are inundated with orders. As they scramble to meet the demand, you may wonder if ordering in puts you or the people making your deliveries at risk. The Question of Worker ...

    Read More
  • Coronavirus Myths & Facts

    As Coronavirus Myths Multiply, Experts Sort Fact From Fiction The new coronavirus continues its steady march through the U.S. population, bringing with it a second plague: potentially dangerous myths and rumors about COVID-19, spread via the internet. You may have already heard some of these coronavirus ...

    Read More
  • Avoid Coronavirus Misinformation

    A Doctor's Tips for Spotting Fake COVID-19 News As we all try to stay safe from COVID-19, arming yourself with accurate news information has never been more important – but it’s not always easy. Fake news can be challenging to recognize because there’s often a little truth mixed in with misinformation. ...

    Read More
  • Calming Your Child's Coronavirus Fears

    Schools are closing. Sports and other activities have been cancelled. Everything is changing. In the midst of this chaos, how do parents keep kids from stressing too much? "For families, this is truly now hitting home," said psychologist Robin Gurwitch, from Duke University and the Center for Child and ...

    Read More
  • Invisalign®

    Invisalign's® invisible, removable, and comfortable aligners will give you the beautiful straight teeth you've always wanted. And best of all, no one can tell you're wearing them. Invisalign® is great for adults and teenagers. What is Invisalign®? Invisalign® is the invisible way to straighten ...

    Read More