Our Leadership Team
We’ve earned a reputation for excellence by establishing long-lasting relationships with our patients. Meet the experienced team who makes this possible!

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Team
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- Restorative & Aesthetic Dental Associates
- Restorative & Aesthetic Dental Associates
- Restorative & Aesthetic Dental Associates
Doctors
Drew Sigman, DMD General Dentist
Ashley Brubaker, DMD Dental Director
Dr. Ashley Brubaker is a graduate of Tufts University School of Dental Medicine, where she earned her Doctor of D...
Ning Yu, DMD Periodontist
Dr. Ning Yu is the periodontist in the Portland and Auburn offices. She is a Diplomat of the American Board of Pe...
Hygienists
Ning Yu ,DMD Periodontist
Dr. Ning Yu is the periodontist in the Portland and Auburn offices. She is a Diplomat of the American Board of Pe...
Drew Sigman ,DMD General Dentist
Ashley Brubaker ,DMD Dental Director
Dr. Ashley Brubaker is a graduate of Tufts University School of Dental Medicine, where she earned her Doctor of D...
Staff
Drew Sigman ,DMD General Dentist
Ashley Brubaker ,DMD Dental Director
Dr. Ashley Brubaker is a graduate of Tufts University School of Dental Medicine, where she earned her Doctor of D...
Ning Yu ,DMD Periodontist
Dr. Ning Yu is the periodontist in the Portland and Auburn offices. She is a Diplomat of the American Board of Pe...