Our Staff

Ronald T. Watanabe, D.D.S.

Dr. Watanabe attended U.C.L.A. as an undergraduate and received his dental training at Case Western Reserve University in Cleveland, Ohio graduating in 1977. Dr. Watanabe established The Arbor Dental Group in 1980 to provide a long-term family practice serving the Irvine and surrounding Orange County communities. He has continued to incorporate the latest state-of-the art advances in dental technology to his practice. As a seasoned dentist, Dr. Watanabe brings experience and knowledge when it comes to all aspects of dentistry including restorative treatment, cosmetic dentistry and root canal therapy. Dr. Watanabe has the expertise to give you a healthy and dazzling smile. Most important Dr. Watanabe is a great listener and will incorporate all of your concerns into treatment to best serve your needs. He and his wife, Joan, have three children: Scott, Lisa and Ryan and are long time Irvine residents. Dr. Watanabe enjoys fitness, outdoor activities, reading, cooking and wine.

 
 
 Scott M. Watanabe, D.D.S.
Dr. Watanabe is a second-generation dentist. Scott attended our local Woodbridge High School, U.C. Berkeley and received his dental education at Case School of Dental Medicine in Cleveland, Ohio. He is a native of Irvine and felt compelled to return to practice advanced dentistry with his father, Dr. Ron Watanabe. As a recent graduate, Dr. Watanabe was honored to receive the "Excellence in Clinical Skills Award" of his graduating class. He brings to The Arbor Dental Group the latest cosmetic dentistry techniques and is certified in Invisalign?. Most important Dr. Watanabe will listen to you and tailor dental treatment to your unique needs. Dr. Scott resides in Tustin with his wife, Jennifer, and their two dogs, Joey and Chloe.
 
 
 Rica R. Biagan, D.D.S.
Dr. Biagan graduated from UCI in 1993 with a B.A. in Psychology and a B.S. in Biology. She attended UCSF School of Dentistry and obtained her D.D.S. degree in 1998. Dr. Biagan has continued to stay abreast with the current advances in dentistry with numerous education courses. She is certified in Implant Dentistry and in the technology of invisible braces, called Invisalign?.

Since 2000, Dr. Biagan has lived in Irvine with her husband, Raymond. They have a son, Kyle, 4 years old and a daughter, Kate, 2 years old. Together they enjoy many outdoor activities and short trips.

With her educational and family background, Dr. Biagan strives to provide gentle and personalized care for you and your family.
 
 
 Kurtis S. Kanemaru, D.M.D.
Dr. Kanemaru received his Bachelors of Science degree in 1975 from the University of California Irvine, and then received his Dental Degree in 1984 from Washington University School of Dental Medicine, St. Louis, Mo.

Dr. Kanemaru is a member of the Delta Sigma Delta Dental Fraternity, Omicron Kappa Upsilon, Orange County Dental Society, American Dental Association, Academy of General Dentistry and Academy for Excellence in Dentistry.

Dr. Kanemaru was born in Honolulu, Hawaii, and now resides in Huntington Beach, California, with his wife, Wenda, and 3 daughters, Loryn, Marissa and Alex. He spends free time with kids, and enjoys playing golf, basketball and softball.
 

Kelly L. Raz, D.D.S. - soon to be Dr. Pierson (photo coming soon)

 

Dr. Raz completed both her undergraduate and dental training at Marquette University in Milwaukee, Wisconsin, which is also her hometown. In college she majored in biomedical sciences and received a Bachelors of Science with the highest honor of Summa Cum Laude. She was accepted into dental school 1 year early and received her dental degree, graduating in the top of her class with the honor of Magna Cum Laude. After dental school, she went on to complete an additional residence training program at the UCLA Medical Center in the section of Hospital Dentistry, where she currently teaches once a week.

 

Dr. Raz will listen to your needs and explain every detail about your treatment to make you understand what is happening with your mouth.  She treats every patient as if they were her own family and her goal is to make everyone feel at ease and comfortable, while providing them with the highest level of dental care.

 

Dr. Raz will soon become Dr. Pierson as she is getting married to her fiancé, Mark, in August 2011!  Together they enjoy traveling to new places, outdoor activities, such as hiking or snowboarding, and playing various sports.

 

 
Hygienists, Assistants and Office Staff

Earning your trust is the most important thing we can accomplish. Taking the time on the first appointment to get to know you and your priorities helps create open honest communications about your dental health. Our team of dental professionals is always here to serve you.      
     
Hygienists 
   
     
 Susie Hamasaki - Registered Dental Hygienist
   Tiffany Harris - Registered Dental Hygienist
     
 
   
 Mary Lumbattis - Registered Dental Hygienist
   Phuong Ngo - Registered Dental Hygienist
     
     
 Assistants    
     
 Lynn Bottomley - Registered Dental Assistant
   Rose Ruiz - Registered Dental Assistant
     
     
 Koka Visoutsri - Registered Dental Assistant
   Linda Visoutsri - Registered Dental Assistant Expanded Functions
     
     
 Front Office
   
     
 Joan Watanabe - Office Administrator
  Renee Olson - Business Administrator
     
  
Kimiko Ferrante - Front Office Administrator