Meet Our Doctors

Dr. Rosita Hamidi – General Dentist

After having received jaw surgery, Dr. Rosita Hamidi’s life was changed so much that she decided to go back to school and learn all she could to help others change their lives, as well. Dr. Hamidi truly enjoys dentistry and is compassionate about educating her patients regarding their oral health.  As a mother of two young children, and a former teacher, Dr. Hamidi has a warm, gentle approach that makes even the most anxious patients feel at ease.  She treats children as young as 6 months old and adults of all ages.  Dr. Hamidi is licensed and trained in using “laughing gas” and oral sedation for severely anxious patients.

Dr. Hamidi graduated from the University of Texas Dental Branch at Houston. She completed her undergraduate studies in political science-administrative studies at University of California, Riverside. She received her Master’s in secondary education from University of Houston-Main Campus. Dr. Hamidi taught high school mathematics in Houston ISD for 7 years prior to becoming a dentist. She attributes her commitment to dentistry to her own dental discomfort since her teen years and undergoing jaw surgery while she was a teacher.

Dr. Hamidi holds herself and her staff up to a high standard of excellence so that patients are always well taken care of. She and her staff think of each patient as a family member and treat them with a respectful, caring, and friendly attitude.

Dr. Hamidi is fluent in Spanish, and also in Persian. In her spare time, she enjoys cooking, watching movies, going to the gym, and spending time with her husband and children.


Karona A. Tum, DDS, MS – Prosthodontist

At a young age, Dr. Karona Tum realized that her greatest passion in life is helping others. She understands that a smile is the universal greeting in all cultures and the most eminent form of expression. Her commitment to providing her patients with exceptional dental care propelled Dr. Tum to be an expert in restorative dentistry.

Her academic accomplishments began at the University of California at Los Angeles, attaining her undergraduate degree in Microbiology, Immunology, and Molecular Genetics. Dr. Tum furthered her education at the UCLA School of Dentistry with her Doctorate in Dental Surgery. Wanting to become a specialist in restorative care, Dr. Tum took on three additional years after dental school to specialize in Prosthodontics at the University of North Carolina at Chapel Hill.

Her prosthodontic training enabled Dr. Tum to provide appropriate diagnosis and treatment planning for complex dental cases. The ability to give her patients a smile that is functional as well as esthetically pleasing is a privilege that Dr. Tum holds in the highest regard. She takes her time to listen to her patients’ concerns and educate them about the status of their oral health. With extensive knowledge in full mouth rehabilitation, Dr. Tum stresses the importance of a disease free oral environment, sound occlusion, and natural smiles.

As a native of Los Angeles, California, a city that is synonymous with beautiful smiles, Dr. Tum has gained an unparalleled intuition for esthetics. Her meticulous nature, combined with her outstanding prosthodontic training, has earned Dr. Tum the respect of her peers. Patients praise Dr. Tum as the prosthodontist who can give them a Hollywood smile!

Schedule a Visit with Dr. Hamidi or Dr. Tum Today

Our goal is to help all of our patients enjoy an improved quality of life through exceptional, highly personalized dental care. To visit with Dr. Hamidi or Dr. Tum in person, schedule a consultation by filling out the contact form below, or call our dental office in Houston, TX at (281) 245-0711. We happily serve the residents of Spring, Spring Branch, Sealy, Cypress, and all surrounding communities.