General Information

Dr. Frank Wilkinson

Dr. Wilkinson was born in Santa Monica and grew up in the San Fernando Valley. He graduated from the University of Southern California School of Dentistry where he was elected to membership in Omicron Kappa Upsilon, Honorary Dental Society. He then served two years in the United States Air Force as a captain in the dental corps. After eight years of general dental practice, Dr. Wilkinson attended the Veterans Administration Hospital at Long Beach for a two year residency in endodontics. Upon attaining his certificate in endodontics, he set up a practice limited to endodontics in Saddleback Valley. 

Dr. Wilkinson is a diplomate of the American Board of Endodontics and has served as president of the Southern California Academy of Endodontics and president of the California State Association of Endodontists. He has also served on the board of directors of the American Association of Endodontists for three years and has taught endodontics in the post graduate endodontics program at the University of Southern California School of Dentistry as an Associate Clinical Professor.

Dr. Wilkinson’s recreational activities include surfing, windsurfing, skiing and snowboarding.
 

Dr. Steve McNicholas

Dr. McNicholas was born and raised in Southern California.  He attended college at the University of Redlands and dental school at the University of Southern California.  He completed a General Practice Residency at Loma Linda University and returned to Loma Linda to earn his Master's Degree in Endodontics. 

Dr. McNicholas is a diplomate of the American Board of Endodontists and has served as president of the Southern California Academy of Endodontics as well as president of the California State Association of Endodontists.  He has also served as chairman of the Professional Standards and Ethics Committee for the American Association of Endodontists and has been involved with teaching the post-graduate endodontic residents at Loma Linda University.

Steve's hobbies included 4 wheel drive and off roading and enjoys exploring the country with his wife and kids in a motorhome.

Dr. Lars Björn Jönsson

Dr. Jönsson grew up in Salt Lake City, Utah.  He studied medical biology at the University of Utah and graduated from University of the Pacific Dental School in San Francisco in 2001. During dental school he was inducted into Omicron Kappa Upsilon and Tau Kappa Omega Honorary Dental Societies.  Dr. Jönsson practiced general dentistry for 2 years in the Bay Area and Orange County before moving to Chicago for his Endodontic training.  There he completed a 2-year residency in Endodontics at the University of Illinois and earned a Master's Degree in Oral Biology. He moved to Orange County to join the practice in 2005.  After several years with the practice, he returned to school for formal Implant training at Loma Linda University.  There he completed a 2 1/2-year Fellowship in advanced surgical and prosthetic Implant dentistry.  

Dr. Jönsson enjoys teaching and has taught Endodontics to Dental Students at both University of the Pacific and University of Illinois. 

He enjoys surfing, skiing, backpacking, traveling, and spending time with his family.

Kim Barrie

Kim is currently the office manager for the practice. She started as a dental assistant with Dr. Wilkinson in March of 1988. (Just yesterday!!). She has been in dentistry since 1981 and has always enjoyed working in an endodontic practice. She has seen our practice grow from a one-doctor practice to its present 4 doctor status, and has transitioned with us from being a non-computerized to fully digitalized and paperless office. She lives in Rancho Santa Margarita with her son, Parker. In her spare time she enjoys going to the movies, playing cribbage on-line, reading and traveling. (especially to TDO meetings)

Andrea Della Penna

Andrea is the front office administrative assistant and has worked in our office since 1998. She assists patients in scheduling appointments, handling insurance matters and making financial arrangements. Andrea has two daughters, she loves cooking big Italian meals for her family. She is an active member at Saddleback Church. In her spare time she volunteers at an assisted living facility. She enjoys caring for people and also has a very creative and artistic side.

Victoria Clairemont

Victoria has been a dental assistant with the practice since 1999. She assists chairside and is also in charge of ordering the office supplies. She enjoys interaction with the patients and making them feel at ease. She was born and raised in Southern California. Victoria resides in Lake Forest with her husband and two rescued dogs. She will also be adding to her family in December 2008- a baby girl.  On the weekends you can find her relaxing with family and friends next to a poolside or fixing up their condo.

Desarie Escobedo

Desarie has been a dental assistant with the practice since 2004. She lives in Montclair and commutes daily to Laguna Hills. She resiedes with her parents and has 2 younger sisters. Desarie attends Chaffey College and is working towards her Bachelor of Arts degree. On the weekends she enjoys being with her friends or having family Bar-B-Q's. Desarie has an adventurous side also and likes to try new things and visit new places.

Sharon Harker

Sharon has been a dental assistant with the practice since 2006.  She first became a dental assistant when she graduated from High School, but then took time off to raise her son and daughter who are now in college. She also has one grandson. Sharon was raised in Southern California and currently resides in Mission Viejo. In her spare time you will find her at the stables riding her horses or playing with her 3 dogs.

Marianne McKray

Marianne has been a dental assistant with the practice since 1985. She worked with Dr Wilkinson when he first started the practice. She left for a short time and returned in 1991, when Dr. McNicholas joined. Marianne always has a kind word and smile for all of our patients.  She lives in Newport Beach with her husband , son and a wide arrange of pets. On the weekends you might find Marianne and son cheering at the race track. Her husband is a Junior Fuel Dragster race car driver. She also has a passion for baking. Her desserts are incredible and each staff member gets a goodie on their birthday and during the holidays.

Emily Costello

Emily was born in the "Bay Area". She has also lived in Sacramento and Utah. She currently resides in Aliso Viejo with her sister. Emily loves her job as a chairside assistant. She tries her best to make each patient comfortable and at ease.

She is currently studying Interior Design where she is able to show off her creative side. She is very active in church and loves to take mini weekend adventures.

Courtney Espinoza

Courtney has recently come back to work as a dental assistant after taking time off to raise her two sons. When the youngest was asking to go to school she knew it was time. She commutes from Santa Ana. She is extremely outgoing and brings laughter to the staff. Courtney is a huge Angel and Raiders fan. She is always at a sports game, usually her son's. We call Courtney "our resident Chocoholic". She has a big sweet tooth so hopefully that doesn''t get her in trouble...