About Us

Dr. Skeena Haider 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.

She is an active member of a number of organizations consisting of dentists who keep current with the latest trends and techniques in dentistry. Her passion is pediatric dentistry, orthodontics, and smile enhancements/full smile makeovers.

She has completed hundreds of hours of continuing education on advanced dental studies in the areas of oral surgery, implant dentistry, complex rehabilitation, esthetics, orthodontics, endodontics, periodontics, operative dentistry, prosthetics, and practice management.

She moved to Texas in 2013 with her husband, of 10 years, and her lovely 7 year old and 5 year old daughters. When she is not at the office she is probably playing endless imagination games with her energetic girls or watching something Frozen related . She enjoys taking them to the zoo, aquarium, library, and park!

She had a baby boy in  July of 2017 and he is a frequent visitor at the office!

She is excited to help you fit your oral care into your life in our Allen Office!

dr_moore.jpg Dr. Moore

A Dallas native, Dr. Moore received his Bachelor of Arts degree from The University of Texas at Austin and his Doctor of Dental Surgery degree from Baylor College of Dentistry. He then continued his training with an additional year in a general practice residency at The University of Texas Health Science Center in San Antonio. During his residency he received advanced training in dental and implant surgery, as well as sedation procedures.

Since Dr. Moore’s return to Dallas, he has focused much of his attention on expanding the scope of procedures offered to patients in the general dental practice. His practice enables patients to receive safe and caring surgical treatment, with predictable surgical techniques, in a comfortable and familiar setting.


Jennifer_Hedrick.png Dr. Jennifer Hedrick

Born and raised in Dallas, Dr. Jennifer Hedrick knew at a very young age that dentistry was the perfect fit for her. She graduated cum laude from Texas Christian University with a Bachelor of Science in biology and completed her Doctor of Dental Science degree at prestigious Baylor College of Dentistry in Dallas.

Dr. Hedrick has a passion for learning and keeps up with the latest technologies to better serve her patients and the dental community. She loves the one-on-one interaction with her patients, helping them to gain and maintain successful dental health. She has a strong interest in using her skills to help patients diminish pain through the technology of root canals.

Dr. Hedrick is the mother of a beautiful daughter, a member of her local church, and enjoys living an active, healthy lifestyle that includes yoga, dance, cooking, and traveling.


2Susan_Sizemore.png 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.

Family is very important to Susan and every free moment she spends with her kids. She has raised 2 very active children and her favorite past time is shopping, traveling with her family and watching her daughter cheer.

She has always been compassionate about helping others and found her calling for the past 20 years in the medical and dental fields. She loves to get to know her patients and their families and help them any way she can. Susan is happy to help her patients understand their dental benefits and work around their schedule so that their dental needs can be met.

Susan is very excited to assist in giving each patient the most enjoyable dental experience.

2Susan_Sizemore.png Enani Gezaheign, RDA

Enani has been working in a dental assistant for 10 years and joined Allen Institute of Dentistry in February 2017. She loves working here because everyone works together as team and it has all state of the art technology. She loves developing relationships with patients and treats them like family!
When she is not working she enjoys spending time with her two children.
She looks forward to meeting you!

She looks forward to meeting you.

2Susan_Sizemore.png Shirley McClaren, RDA

Shirley McClaran is a Registered Dental Assistant with so many years of experience that she won’t tell us. She has a big smile and a warm heart to share. Her ability to make patients comfortable is just awesome.
She is committed to dental excellence and always makes her patients her priority. She is here to assist and educate you with any dental decision you may need to make.
Shirley is married to Allen and has three grown daughters, four granddaughters and one grandson. She loves to be involved in their lives. They are all the light of her life. Shirley is from Clovis, New Mexico and is proud of her state and the heritage and culture. She loves Mexican food (wonder why?). She likes to go antique shopping and going to museums with her husband.

Your smile and dental health is her PASSION!

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.
Denise enjoys her job and enjoys helping people. She has been in the dental field for both general dentistry and orthodontics for over 30 years. She is committed to educating you on your dental needs and how to keep your smile healthy.
You will most likely hear her contagious laugh down the hallway, during your visit.

She can't wait to make you smile!

Catherine Moore, RDH

Catherine has been a dental hygenist for 30+ years after attending Dental Hygiene School in San Antonio at UTHSCSA. She has two beautiful daughters, Natalie and Alissa. Natalie is 23 years old and recently graduated from UNT Denton with a major in Math- Education.Alissa is 18 years old and recently gradauted from Allen HS. She is planning on attending Dental Hygiene School in the upcoming year. Catherine also has a dog named Paris. She is a, 11 year old Chiweenie.
When she's not working she loves to spend time with her family and friends, cycling, travelling and going to the gym.
Her passion for her work and patient care has inspired her youngest daughter to follow in her professionaly footsteps and she could not be more delighted.

She loves being part of the team of Allen Institute of Dentistry and looks forward to meeting all of her patients.

A Beautiful Practice For All Your Dental Needs


We are proud to provide a state-of-the-art facility for the highest quality dental care available. It is one of our top priorities to protect the well-being of our valued patients. For this reason, our office meets and surpasses all OSHA (Occupational Safety and Health Administration) and CDC (Center for Disease Control) standards. We are confident that you will feel right at home in our office as we welcome all patients as if they were family.


If you would like to make an appointment, please contact our office by phone or email. Our office facilitates communications and emergency calls and appointments are available and welcome, especially for new patients seeking help.


We will be more than happy to submit all insurance forms for you and help you recover the most from your benefits. We will do everything we can to help you afford the treatment you need and want. For patients who require major work, a complete payment plan is designed with an appropriate payment schedule. Forms of payment accepted by the office are check, cash, or any major credit card.


If you are unable to keep an appointment, we ask that you kindly provide us with at least 24 hours notice. We ask for this advance notice so that we can offer this appointment to another patient. A fee may be charged if a patient does not show up for an appointment without sufficient notice.

We would like to take this opportunity to thank you for choosing our practice for your dental care.

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Our Location

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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