(626) 449-2231
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About Us

 
About Our Doctor
 
Dr. George J. Hanna

Dr. George J. Hanna

Position Title: Dentist/Co-Founder

School of Graduation/Year: USC School of Dentistry, Class of 2007

School of Undergraduate: University of California, Irvine, Class of 2002

Why you love doing what you do: I feel incredibly blessed to be a dentist and have felt that way since my first day in dental school. Not a day goes by where I take my privilege to serve my patients for granted. Early in my career, I had the opportunity to transform some lives with major smile makeovers, and the joy I derived from seeing their reactions gave me the greatest professional and personal fulfillment.

Hobbies: Fishing, DIY projects around the house, and spending time with my 3 kids and wife. Oh, and dentistry!

Fun fact: I am a die-hard Trojan fan even though my wife is a dual-Bruin!

What WE love about Dr. Hanna? Dr. Hanna is kind and gentle – all the time.

Dr. Hanna loves seeing his patients smile and although he excels at all areas of dentistry, he specializes as a general dentist, assisting his patients with preventative and diagnostic dentistry.

Dr. Dezireh Sevanesian

Dr. Dezireh Sevanesian

Position Title: Dentist/Co-Founder

School of Graduation/Year: UCLA Anderson School of Management, MBA, Class of 2020
Loma Linda University, Advanced Education in Dental Anesthesiology, Class of 2010
USC School of Dentistry, Class of 2008
School of Undergraduate: University of California, Los Angeles, Class of 2004

Why you love doing what you do: I love using my background in business to help build a practice that can provide state of the art dentistry while contributing to the community and other causes near to our hearts. More importantly, it allows me to take care of the business side of dentistry allowing the clinicians to focus on the patients and their love of dentistry. It’s a match made in paradise!

Hobbies: Basketball, Spending time with my three children and experiencing life through them! Trojan Football, Reading

Fun fact: I have 2 degrees from UCLA but am a die-hard Trojan fan. I am known to wear USC attire to my UCLA classes.

Dr. Stephanie Sayegh

Dr. Stephanie Sayegh

Position Title: Associate Dentist

School of Graduation/Year: Loma Linda University, Class of 2018

School of Undergraduate: University of California, San Diego, Class of 2014

Why you love doing what you do: As a dentist, I’m able to form a connection with my patients, answering any questions they have while putting all their concerns and anxiety at ease. I want to emphasize the importance of oral health care and its connection to our overall systemic health. My goal is to help transform the lives of my patients using the latest state of the art
echnologies and materials, eliminating their pain, meeting their dental needs and giving them the opportunity to share their smiles with the world.

Hobbies: hiking, traveling, cooking, fitness, reading

Fun fact: I was on Wheel of Fortune in 2016!

Why WE love Dr. Steph? She LOVES dentistry as much as Dr. Hanna and if they aren’t treating patients, you can find them sharing their love of dentistry discussing cases and overlooking x-rays!

Meet The Team

We are proud of our highly skilled dental team at Pasadena Advanced Dentistry in Pasadena.

Maria Giles, RDH

Maria Giles, RDH

Registered Dental Hygienist
School of Graduation/Year: Pasadena City College

Why you love doing what you do: I have been working in the dental field for 34 years and I look forward to going to work each day. I love teeth but I love my patients even more. Each patient is unique and I take pride in providing them the best care. I love to welcome patients to our office where everyone is treated like family.

Hobbies: Love gardening, spending time with her grandbabies, hiking and being outdoors, hot weather and the sun, proud military mom

Fun fact: If Maria is not taking care of patients, she is singing and dancing around the office!

Pamela Shishima, RDH

Pamela Shishima, RDH

Position Title: Registered Dental Hygienist

School of Graduation/Year: Pasadena City College Dental Hygiene Program-1997,
Pasadena City College Associates of Science and Associates of Arts 1986

Why I love doing what I do: I absolutely love my career as it affords me the opportunity to meet new people, educate them about dental health, provide them with the best dental care possible and overall just improve their health and wellbeing. One of the best parts of my job is connecting with my patients and forming a more personal and genuine relationship whereby both myself and my patient can grow and learn from.

Hobbies: Outside of work, some of my hobbies include spending time with my family and friends, shopping (of course!), gardening, and trying new recipes.

What WE love about Pam? Pam is incredibly witty and has a wonderful sense of humor! Her patients are also very loyal to her and we know she takes amazing care of the patients.

Sarah Edgington, RDH

Sarah Edgington, RDH

Position Title: Registered Dental Hygienist

School of Graduation/Year for Hygiene Degree: University of Southern California, 2000

School of Undergraduate Attendance: University of Southern California

Why you love doing what you do: Helping patients have a healthy, beautiful smile can change their outlook on life

Hobbies when not doing what you do: I can be found volunteering at the school of one of my two boys, cheering on one of my favorite sports teams or loading up our RV for a camping trip

Fun Fact: I've danced internationally as a USC Song Girl and am a former Rose Princess

What WE love about Sarah? Her commitment to her patients and advocating for their health with a positive attitude

Zareh Sevanesian, DA

Zareh Sevanesian, DA

Position Title: Dental Assistant

School of Graduation/Year: Pierce Community College

Why you love doing what you do: As a dental assistant, I love being able to bring comfort and ease to patients as they take care of their oral health. I also love being a part of such a wonderful team of respectful individuals who are always helping me grow as a professional. Of all the teams I have belonged to in my careers, this has been the most fun and most rewarding one!

Hobbies: Weightlifting, hanging with my family, WWE

Fun fact: I am a die-hard WWE fan and can be found wearing my collector’s items watching WWE pay-per-view events

Cathy Schulz, RDA, CDA

Cathy Schulz, RDA, CDA

Position Title: Front Office Manager/Treatment Coordinator
School of Graduation/Year: Pasadena Community College, Class of 1982

Why you love doing what you do: Working in the health field with many wonderful doctors has been very rewarding, and I love to help each doctor grow their practice to meet their vision. I love my patients and feel they have become my family over time!

Hobbies: Gardening, Biking, Camping, Crafts, and Walking my dog.

Fun fact: I have been known to save lives!

What WE love about Cathy: Cathy is a remarkable patient advocate and can literally remember every detail about every patient without having to reference anything. She is our walking electronic health record!

Denise Jameson, RDA

Denise Jameson, RDA

Position Title: Registered Dental Assistant

School of Graduation/Year: Pasadena City College,

Why you love doing what you do: I love being a dental assistant and helping patients achieve and maintain a beautiful and healthy smile. My favorite part of the job is giving patients the experience of good dental care and the feeling of a great smile. I love getting to know patients and building long-term relationships, and I really appreciate the attentive care our doctors and team strive to provide, as individuals and collectively. I enjoy my role in educating patients about all areas of their care and promoting systemic health through proper oral hygiene.

Hobbies: I enjoy gardening, cooking, skiing, photography, traveling, hiking and exploring new trails.

Fun fact: Denise has a love for traveling and spending time in Montana and is a remarkable photographer. You can find her photography showcased around the office and on our televisions.

What WE love about Denise: Denise has the highest standards for our back office team especially when it comes to infection control and protocols. She is known to “bleach the bleach” too! Microbes don’t stand a chance!

Amy Stilson

Amy Stilson


Position: Hygiene Coordinator/Admin Assistant II

School of Graduation/Year: Bachelor's Degree in Communications/Public Relations
California State University Fullerton, 1992

Why you love doing what you do: I love my job because of the amazing people I work with and the personal interaction I get to have with all of our wonderful patients.

Hobbies: My hobbies are reading, vintage shopping and spending as much time as I can in Palm Springs!

Fun Fact: I was a performer in the Opening Ceremonies of the 1984 Summer Olympics in Los Angeles.

What WE love about Amy? She has a strong background in PR for large medical institutions and connects with each and everyone of our patients.

About Us
We’re Serious About Your Smile

Here’s an inside look at our doctors and the team at Pasadena Advanced Dentistry

Cleaning & ExamPlay Video
Cleaning & Exam
Tooth DecayPlay Video
Tooth Decay
Cosmetic DentistryPlay Video
Cosmetic Dentistry
“We Provide Comprehensive Dental Care In Pasadena”

“We Provide Comprehensive Dental Care In Pasadena”

Whatever your dental need, Dr. George J. Hanna and his dental team at
Pasadena Advanced Dentistry keep your smile happy, healthy, and whole

“My team and I fully dedicate ourselves to giving you and your family the best dental care possible. From the moment you set up your first appointment with our office, we make you our #1 priority. We do everything we can to give you the best defense against bacteria and tooth decay. Our dental staff tackles any potential or real dental problems as soon as they appear, and we do it with your total comfort in mind. It’s our firm belief that a person’s smile is one of their most important aspects, and we strive to ensure that yours looks natural and healthy. At Pasadena Advanced Dentistry, we want to make sure you always leave our office loving your smile.”

“My team and I fully dedicate ourselves to giving you and your family the best dental care possible. From the moment you set up your first appointment with our office, we make you our #1 priority. We do everything we can to give you the best defense against bacteria and tooth decay. Our dental staff tackles any potential or real dental problems as soon as they appear, and we do it with your total comfort in mind. It’s our firm belief that a person’s smile is one of their most important aspects, and we strive to ensure that yours looks natural and healthy. At Pasadena Advanced Dentistry, we want to make sure you always leave our office loving your smile.”

Dr. George J. Hanna
Pasadena Advanced Dentistry
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