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Get to know your Dental Team at Loftin Dental in Concord

We love our Team! So will you!

Our team consists of a group of wonderful people here to serve your needs from the moment you walk in our practice until you leave us. You will feel comfortable and cared for every minute with us. Not only will you be receiving the best possible care for your dental needs, you will also have the best support in understanding your insurance benefits and how to coordinate everything you may need.

Everyone here stays up to date with the latest techniques to improve your oral health, researches new technologies to help determine if they are a right fit for you and are active in their local professional associations. Taking care of you gently and completely are their personal goals! With all of that commitment, they also volunteer their time, have wonderful family and friends to care for and are big travelers and adventurers! Learn a little more about each of our team members.

Ever wonder what the difference was between an RDA and an RDAEF? 
The quick answer is that an RDA is a Registered Dental Assistant and an RDAEF is a Registered Dental Assistant Extended Functions.  The better answer is that an RDAEF goes through an additional year of school and then must pass a State Board exam with their dentist in order to be accredited with this title. In the office, it means they are trained and licensed to do more with Dr. Loftin. Think of them like a physician’s assistant. It’s a unique position and they work very hard for this certification.   We are very lucky to have two such RDAEFs at Loftin Dental, Jennifer and Tabitha.
What Does This Mean For You and other patients? 
Having RDAEFs allows us to be more agile in our practice and to attend to more patients in need of complex procedures. This can include placing fillings, adjusting dentures and numerous other procedures.  Each RDAEF works closely with Dr. Loftin and both are fully capable for these and other advanced treatments.
Zulay Loftin, Office Manager

Zulay Loftin, Office Manager

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Zulay has been running offices for about 15 years now. She is a local girl, going to College Park High School and then Saint Mary’s College in Moraga where she received her degree in Accounting and shortly after earned her CPA degree. Zulay has always had an interest in how businesses run and how she can help them become even better than they already are. What she has found rewarding in this industry is the amount of people you see on a daily basis and the numerous opportunities she has to get to know them, help them, and have fun with them!

Being part of this team and partnering with her husband, they have really committed themselves to giving back to their team, patients & community. They are members of the Concord Chamber of Commerce, the Clayton Business and Community Association (CBCA), the Professional Women's Referral Group and Zulay is also on the Advisory Committee for Mt. Diablo Unified School District. She has come to find that many of their patients are also valued members of these groups! Her favorite part of those groups are the connections she can help create for others to improve their business! So when Zulay is not working, she is with one of those groups or with their son, Jaxon who is 8, in 3rd grade; play dates, volunteering at Eagle Peak Montessori School, and checking out local fun kid things-to-do. She also squeezes in time for cooking for, or traveling and wine tasting with her husband. She even gets him to a LIVE show once in a while!

Jannie Lawrence, RDH

Jannie Lawrence, RDH

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Jannie has happily been a Hygienist since 1983 and has been working with Dr. Martin since 1984. She went to DVC and is currently part of the American Dental Hygienist Association and the Mt. Diablo Dental Hygiene Association. Jannie has always been interested in health. One of her friends was a dental hygienist and inspired her to follow into this industry. This was a great choice, as she truly enjoys her patients, especially visiting with them and helping them improve their oral health. When she’s not at the practice, she has her grandkids to keep her and her husband busy, along with her loves of photography and dancing.

Heather Kircher-Martinez, RDH

Heather Kircher-Martinez, RDH

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Heather has been with us for a long while; first as a patient and now as our Hygienist. She went to school locally at Diablo Valley College. We get to see her kids just as regularly but now they get their teeth cleaned by her! Michael (9) and Makayla (5) both enjoy that a lot! The part of her job she finds most rewarding is when she’s able to be a part of her patient’s journey from having disease to having a healthy mouth. The benefits are endless and she likes knowing she had a part in that process. Her goal to give you the best experience possible and keep you healthy! When she’s not with us, she likes going on weekend trips with her kids or just hanging out at home. She plays the piano too and has recently began to teach her daughter how to play.


Regina McLinn RDH

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Regina has been part of our team for a couple years now. She initially helped us as a ‘Temp’ when one of our ladies got ill. Now we get to see her more regularly on Thursdays & Fridays. She went to school at Darton Hygiene School in Georgia and Loma Vista for her RDA license. She has been a hygienist since 2004. She lives locally with her family where she houses a handful of horses, goats, bees and a countless amount of chickens! She has a small farm! When she’s not working, she and her family love to go boating. Regina just had a baby girl – Madeline. Yay! Big sisters Samantha & Lila are a BIG help!
Wendi Laughlin, RDA

Wendi Laughlin, RDA

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She is our newest team member and we’re excited to have her with us. She’s been an RDA for about 20 years now and received her training at Loma Vista. Wendi got introduced to being an RDA back in Idaho where she was covering for an RDA that got ill. From that point on she was hooked! She has greatly enjoyed working with kids, meeting new people and helping everyone have a great smile. Her husband, Chris, and their little men, Silas (1) and Rayce (7) live in Clayton. When the family is together they enjoy camping in Idaho, dirt bike riding and enjoying the local festivities, like the Clayton Art & Wine Festival . When Wendi has a moment to herself she likes to spend it cooking, painting or listening to her music!

Jen Crookes, RDAEF2

Jen Crookes, RDAEF2

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Jen has been a Registered Dental Assistant (RDA) since 1992 and has been with Loftin Dental since early 2013. She graduated from Clayton Valley High School and then went to Bryman College in San Francisco for her RDA training. She recently went to Sacramento City College for her Extended Functions (EF2) training. She has two daughters. Haley is a freshman at Sonoma State and Hannah is at CVCHS. All three of them are big fans of getting their nails done, pedicures and regular massages! Jen knew that she wanted to get into this field when she was getting orthodontic work done on herself when she was 11. She thought the assistant part of the process was interesting and fun. Her first assistant was very sweet and helpful showing her all the steps she was taking and she wanted a similar job. This just in - Jen is newly engaged!  Congratulations, Jen!
Tabitha Hartley, RDA

Tabitha Hartley, RDAEF2

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Tabitha has been in the dental industry since 1991 and at Dr. Loftin and Dr. Martin’s office since 2008. She went to Western Career College for training and is currently a member of the American Dental Assistant Association. For Tabitha, it was either dental or cosmetology, but she really couldn’t see herself painting other people’s nails all day! The best parts of her job are the patients and the diversity of what she does day to day. It can be chair side with Dr. Loftin or Dr. Martin, up front or in the lab. When she’s finally home (Tabitha has lived in 3 countries), she enjoys time with her horses and doing some reading. 

Recently Tabitha started REINS (Red's Equines in Need Sanctuary) located in Hollister, California, to help neglected, abused, abandoned and unwanted horses in need of a safe environment in which to recover and either be placed in a new forever home or a loving sanctuary to live out their days.

 Please see for more information! She also has a Facebook page: search for REINS.

Sheila Bergum,  Front Office

Sheila Bergum,  Front Office

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Sheila has been with us for just over a year and helps Loftin Dental stay very organized for all the patients. She has helped with chart audits and has been a welcome smiling face every afternoon. Sheila and her husband have a daughter at USC and a son in high school. She is a very involved parent and volunteers many, many hours to make sure the children and teachers are cared for properly.

Lisa Grenier, Front Office

Lisa Grenier, Front Office

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Lisa has been working in dentistry for more than 30 years, 10 of those years being with Dr. Martin and Dr. Loftin. She has been a dental assistant in the past and very much enjoys being up front as well. Lisa went to Diablo Valley College for assistant training and continues training through local classes to keep up with the business side of dentistry. The best part of what she does is working with such amazing people! She says it feels like she’s working with family here and that it’s so much fun to meet all the patients and get to know them. When Lisa is not up front, she loves cooking for her family and spending time with them, especially during football season! Lisa has 3 grandbabies & 1 on the way! 

Rhonda Stevens, Front Office

Rhonda Stevens, Front Office​

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Rhonda has been in the dental industry for more than 15 years. She was born and raised in Anchorage, Alaska, and did all her schooling there. When she moved here, she began volunteering at the Cancer Research Institute. She has always enjoyed the healthcare industry and especially taking part in educating patients about their oral health, their insurance benefits and helping them achieve the smile they’ve always dreamed of! Even though she loves her patients so much, she will peel away and go scuba diving (she’s certified) or go traveling to somewhere tropical.