Meet the Specialists

Dr. Chrystal

Oral Surgeon

Dr. Nelson-Chrystal was born and raised in California where her father had practiced as an orthodontist for over 30 years. She was raised in a family full of dentists and has had a passion for oral surgery since she was child.

After graduating with honors from college, and graduating with honors from the UCLA’s Dental school; Dr. Chrystal accepted a position in the Oral and Maxillofacial Surgery program at University of Maryland at Baltimore and the R. Adam Cowley Shock Trauma Center. This prestigious program is world-renowned in trauma surgery, head and neck reconstruction, and micro vascular surgery. In fact, Dr. Chrystal was present during the first face transplant in the United States.

During her six-year residency, Dr. Chrystal also obtained her Medical degree from the University of Maryland School of Medicine. University of Maryland and the Shock Trauma Center is a high-paced, rigorous program that afforded Dr. Chrystal a rich, rewarding experience and helped shape the kind of surgeon she is today. She often travels to San Francisco as an expert counsel on the aspects of oral and facial trauma surgery.

Dr. Chrystal has hospital privileges at four of the Mercy Hospitals in the Sacramento Dignity Health System where she performs orthognathic surgeries, benign tumor resections, and trauma.

She is a member of Oral and Facial Surgeons of California (formerly California Association of Oral and Maxillofacial Surgeons – CALAOMS), American Association of Oral and Maxillofacial Surgeons (AAOMS), Sacramento District Dental Society (SDDS), California Dental Association (CDA), American Dental Association (ADA), Christian Medical and Dental Association, and the American Board of Dental Anesthesia.

Dr. Chrystal has a phenomenal bedside manner and strongly believes that patient education and comfort are key in the role as a health care provider in her community. Her interests are in obtaining a smooth and pleasant experience for her patients and their family. Dr. Chrystal’s areas of focus and discipline include wisdom teeth extractions, sedations, implants, bone reconstruction/grafting, CT guided implant surgery, orthognathics, TMJ disorders, benign tumors and cosmetic surgery. She enjoys hiking, camping, wine-tasting, bike riding, backpacking, mountaineering, spending time with family and friends, and trying new things. She’s been married to her husband Dan for 20 years, with two daughters, a grandson, a granddaughter, and two dogs. Currently, Dr. Chrystal’s family resides in Lincoln, CA.

Dr. Singh


Dr. Singh completed his DDS from University of the Pacific in San Francisco. He graduated as Valedictorian and was inducted into OKU, TKO and phi kappa phi honor societies. He practiced general dentistry for two years and then later went to University of Washington, Seattle to earn his Masters in Endodontics. During his residency, he conducted research on root canal instruments.  Dr. Singh strives for the highest standards of endodontic care with compassion, warmth, and a personal touch for all patients in need. Dr. Singh is married and has 2 children. In his spare he likes to spend time with his family, cook and be outdoors.

Dr. Polous


Dr. Poulos earned his Doctor of Dental Surgery degree (D.D.S.) from Indiana University School of Dentistry in 1970. Following 7 years in private general practice, Dr. Poulos completed a 2-year surgical residency in periodontics at the University of Connecticut School of Dental Medicine. This advanced training certified him to practice as a specialist in Periodontics.

Dr. Poulos has practiced Periodontics and Implant Surgery in Santa Clara County since 1979. He is an active member of the following professional organizations:

In 1993, Dr. Poulos founded the San Jose Dental Study Club, which is an organization devoted to teaching other dentists the most current methods of diagnosis and comprehensive treatment. Dr. Poulos is one of just a few dentists in California recognized and certified by the California Board of Dental Examiners to instruct other dentists. He also hosts several continuing education seminars featuring national level speakers. These seminars are open to Study Club members, as well as other dental professionals from the San Francisco Bay Area.

As of 1995, the San Jose Study Club is an affiliated chapter of the Seattle Study Club.

Dr. Poulos is married and has three daughters.

Office Locations

  • Pine Grove
  • 19751 Hwy 88
  • Pine Grove, CA
  • 95665
  • Map & Directions
  • Call: (209) 296-7878
  • Jackson
  • 12120 Industry Blvd # 35
  • (next to Safeway)
  • Jackson, CA
  • 95642
  • Map & Directions
  • Call: (209) 353- 3275
  • Plymouth
  • 9449 Landrum ST
  • Plymouth, CA
  • 95669
  • Map & Directions
  • Call: (209) 245-4413