Our team at Top Smile Orthodontics is comprised of over 40 years of dental experience. With the ever-evolving Orthodontic industry, our team is committed to staying up to date with the latest technology and the most advanced techniques by attending yearly continuing education courses.  Our practice believes in providing a comfortable and relaxing environment for our patients. We strive to provide excellence in every encounter.


Board Certified Orthodontist


Dr. Nima Rohani is a board certified orthodontist who believes everyone - child, teen or adult- deserves a beautiful smile. Beyond providing orthodontic care that is conducive to oral health, Dr. Nima enjoys constructing smiles that increases patients' self esteem and last a lifetime. He appreciates the personal relationships that are formed with the families during such orthodontic care. Dr. Nima designed his practice committed to the latest technologies in order to provide the best treatment possible to his patients.

Dr. Nima attended the University of Florida on numerous academic scholarships where he graduated Cum Laude with a bachelor's degree in Nutritional Sciences. He went on to obtain his Doctorate of Dental Surgery from Columbia University in New York City. Furthering his specialty, Dr. Nima completed a 30 month residency at the University of Nebraska, Lincoln where he received a certificate of Orthodontics and a Masters in Oral Biology. Dr. Nima is board certified by the American Board of Orthodontics, a distinction claimed by only 20% of orthodontists.


A firm believer in expanding access to care for those in need, his services have taken him as far as Guatemala to provide treatment in areas with limited health care. Dr. Nima has been married to his wife Alicia since 2010, they welcomed a son in 2017 and another son in 2020. Together they are avid travelers, often visiting loved ones sprinkled across the globe. In his spare time Dr. Nima enjoys Crossfit, video games, and fantasy sports. 


Fallon Garcia serves as our Treatment Coordinator and lead Dental Assistant with a passion for orthodontics and over 10 years experience. She was born and raised in Dallas, Tx. Fallon loves to help patients understand their orthodontic treatment and accompanies them in every step. 

Fallon is a mother of three beautiful kids; two boys and one girl. She enjoys DIY projects, travel and exploring new places. She spends most of her free time with her family and friends. She's very involved in her kids' activities: baseball, football & cheerleading. She's friendly, humble, outgoing and a team player. 

Treatment Coordinator


Kristen Ladkin is a registered Dental Assistant with 9 years experience and enjoys seeing patients' outcome from braces. She was born and raised in Arlington, TX. 

Kristen has one furry baby name Debow. In her spare time, she enjoys working in the garden, cooking, doing makeup, and traveling. 

Orthodontic Assistant


As a registered dental assistant since 2020, Stephanie loves seeing patients’ build confidence with their smiles. She thrives working in the dental field and hopes to one day become a dentist, She always aims to provide Top Smile patients the same high-level care that Dr. Rohani gives his patients.

In her free time, she spends time with family and friends at her family's ranch. Being in nature and away from the city brings her tranquility and she finds this very therapeutic.

Orthodontic Assistant


Casper and Coco are the official Top Smile mascots. They are both French Bulldogs, Casper is cream and Coco is brindle. Casper and Coco are extremely friendly and enjoy all the attention they can get. Casper loves long naps in the sun, cuddling on the couch and playing fetch. Coco enjoys going on walks, chasing squirrels outside and will do anything for a treat. If you're lucky, you might catch them during one of their visits at the Top Smile office in Sunnyvale!

Follow their adventures on Instagram at @casperthefriendlyfrenchie!