Dentist in Oakland, CA

Our patient-centered Rotunda Dental office

Dedicated to patient education, we want to make your appointment informative. The more you know about your dental health, the more prepared you will be to make intelligent decisions about treatment. We will educate you by demonstrating techniques, illustrating diagnoses, explaining procedures, and answering your questions.

Warm beverages and warm conversation

Comfort and convenience are our focus. At Rotunda Dental, the moment you walk through the door, our friendly staff will be ready to attend to your needs to make your visit efficient and relaxing. Enjoy a cup of coffee in our reception area. Because we pride ourselves on prompt care, our experienced staff will work diligently to complete your appointment on time so that you can continue with your day.

Our dentists make the difference

Extensive experience and education allow our dentists to provide exceptional patient care. All of our doctors have received significant training so that they can perform precision treatments that improve oral and overall health. Patient satisfaction is a priority for our entire staff. Our dentists use advanced technology, including digital x-rays, images from intraoral cameras, and extra-oral photography, when explaining diagnoses and treatments so that you will feel comfortable and informed.

Sean Bullard, DDS

A member of the Academy of Laser Dentistry, the American Dental Association, California Dental Association, the Pankey Institute, and the International Congress of Oral Implantologists, Dr. Sean Bullard takes his continuing professional development seriously. Dr. Bullard graduated from the University of California, Berkeley in 1997 and from Howard University Dental School in 2002. With a broad scope of learning, Dr. Bullard researched laser dentistry at the University of California, San Francisco, studied osteoblast wound healing at Columbia University, and externed for oral surgery at the Harlem Hospital. Invisalign certified, Dr. Sean Bullard received additional training in endodontics, implants, orthodontics, and CEREC techniques.

Ron Bullard, DDS

A graduate of Howard University School of Dentistry, Dr. Ron Bullard has almost 40 years of experience in dentistry. For 20 years, he served as an expert examiner on the California State Dental Board. Dr. Bullard trained for his Invisalign clear braces certification with some of the most prominent providers of Invisalign in the world. He rapidly became known as a leading dentist for clear braces in Oakland. In a commitment to continually expanding his knowledge in his profession, Dr. Bullard is a member of the American Dental Association, National Dental Association, and California Dental Association.

Randall T. Hayashi, DDS

A proponent of Rotunda Dental's vision for systemic dental care, Dr. Randall T. Hayashi has been practicing high quality dentistry since 1988, after graduating from the University of the Pacific School of Dentistry, San Francisco. Advanced education and certification courses allow Dr. Hayashi to offer experience and extensive knowledge in many aspects of dentistry. He continues his education in advanced technologies like Ozone for Dentistry, Dental Concierge, dental reconstruction, and computerized jaw tracking systems. In addition, his continuing education includes Dental MBA, Las Vegas Institute for Advanced Dental Studies, Advanced Anterior Esthetics, Occlusion I, II, and III, Comprehensive Esthetic Reconstruction, and courses about treatment for sleep apnea and snoring.

Dr. Hayashi's certifications include:

  • Invisalign
  • ClearCorrect
  • Perio Protect
  • SomnoMed

Dr. Hayashi's memberships include:

  • American Dental Association
  • American Academy of Cosmetic Dentistry
  • California Dental Association (former delegate)
  • Academy of Sleep Disorders Disciplines
  • Academy of Dental Sleep Medicine
  • Stanislaus Dental Society (former president)
  • Modesto Implant Study Club (founding member)