Meet Our Dental Providers

Harpreet Tiwana, D.D.S

General Dentist


David Amid, D.D.S.


Shilpa Avula, D.D.S

Pediatric Dentist

Dr. Shilpa Avula knew from high school that she wanted to be a dentist. Entering the University of the Pacific, she was enrolled in an honors program that accelerated her through both undergraduate and graduate studies to receive her D.D.S. degree in just five years. She completed her residency in Pediatric Dentistry at St. Barnabas Hospital in Bronx, New York, and is currently Board-certified for this specialty.

Although Dr. Shilpa Avula was initially drawn to dentistry for its ability to help people, she most appreciates the joys of working with children and the uniqueness of each day. To stay current with treatment techniques and procedures, she is an active member of multiple professional organizations, including the California Dental Association and the California Society of Pediatric Dentistry.

In her spare time, she loves to spend time with her family. She is proficient in Spanish. 


D.D.S. – University of the Pacific Dugoni School of Dentistry


Diplomate – American Board of Pediatric Dentistry; American Dental Association; California Dental Association; California Society of Pediatric Dentistry; American Academy Pediatric Dentistry


Jude Crutchfield, D.M.D

Pediatric Dentist


Ali Pootrakul, D.D.S., M.D

Oral & Maxillofacial Surgery

Dr. Pootrakul is committed to the highest quality dental care. As an Oral & Maxillofacial Surgeon he appreciates his role in providing pain relief to his patients through often complex surgical procedures. He applies a caring, detail-oriented approach to each patient’s case, taking time to solve their dental issues effectively, and thoughtfully provides treatment options that are specifically designed around each clients needs.

Patients that have had traumatic dental visits in the past at other offices, are pleasantly surprised with his kind manner and gentle approach to Oral and Maxillofacial surgery. Whether you are having a simple extraction or all four wisdom teeth removed under sedation you will feel more like you are at a spa then a dental office. His scope of practice ranges from extractions to full facial reconstruction and TMJ. His education and surgery training allow him to handle the most complex medical and dental cases without the need to go to a hospital.

After graduating from St John’s University, Dr. Pootrakul earned his D.D.S. from the SUNY Buffalo School of Dentistry. He received his Medical Degree from the New York Medical College. He speaks Spanish and Farsi, also.

Away from the office, Dr. Pootrakul likes spending time with his wife and son. He relaxes with exercise and is a classic car enthusiast.


B.S., Applied Math–St John’s University
D.D.S.–SUNY Buffalo School of Dentistry
M.D.–New York Medical College


American Dental Association California Dental Association Academy of General Dentistry American Association of Oral & Maxillofacial Surgeons


Martin Schellinck, D.D.S., M.S


Dr. Schellinck absolutely loves being an orthodontist. He takes pride in creating life altering smiles, and cherishes the patient relationships that develop during the orthodontic process. Dr. Schellinck is a Central Valley native, born and raised in Turlock, CA. He is the youngest of four children, all of whom pursued a career in dentistry.

Dr. Schellinck attended undergraduate school at the University of the Pacific in Stockton, CA. After receiving his Bachelor of Science, he moved to San Francisco to attend the University of the Pacific’s dental school. Dr. Schellinck graduated as Salutatorian and was accepted into the prestigious orthodontics program at Baylor College of Dentistry, in Dallas, TX. Shortly after graduating with a certificate in Orthodontics and a MS degree from Baylor, Dr. Schellinck became a Diplomate of the American Board of Orthodontics. This prestigious title is given to orthodontists that have taken and passed an additional clinical exam offered by the American board of Orthodontics.

Outside of orthodontics, Dr. Schellinck enjoys watching sporting events, playing soccer, golf and tennis, and tending to his planted aquariums.


B.S., Biology–University of the Pacific
D.D.S.–University of the Pacific School of Dentistry
M.S., Orthodontics Certificate–Baylor College of Dentistry


Diplomate of the American Board of Orthodontics American Dental Association California Dental Association Pacific Coast Society of Orthodontis American Association of Orthodontists


Madhavi Setty, D.D.S., M.S


Dr. Setty has extensive experience in micro-surgical endodontic treatments including apical surgery, ridge preservation, bone augmentation, re-treatments, non-surgical root canal treatments and revascularization. She encourages her patients to be involved in their treatment in order to achieve the best results possible, and is always open to questions and is attentive to each patient’s needs.

She earned her Dental Degree, Certificate in Endodontics and Master of Science in Dentistry degree at Case Western Reserve University. She has been published in the Journal of Endodontics. She is a member of the American Association of Endodontists, the American Dental Association and the California Dental Association. She also speaks Spanish, Hindi, Kannada and Telugu.

In her free time she enjoys travel, hiking and reading.


D.D.S.– Case Western Reserve University School of Dental Medicine
M.S., Endodontic Certificate–Case Western Reserve University School of Dental Medicine


American Association of Endodontics American Dental Association California Dental Association

About Gentle Dental Stockton

At Gentle Dental Stockton, our dentists understand the anxiety you might feel when visiting a dentist and will focus on making sure that all of our dental services are all provided with our signature gentle touch that our clients appreciate. No matter your dental needs, we are sure that we can make your visit as enjoyable and successful as possible. Our friendly and helpful staff will accommodate your needs and answer any questions or concerns you may have. In taking the time to listen to your dental needs and concerns, our dentists will develop the most practical and personalized solutions to your specific dental needs. Gentle Dental Stockton dentists count on our state-of-the-art facility and will ensure that you receive the most comprehensive dental care in a relaxing and tranquil environment. Whether you are in need of a regular visit, teeth cleaning, or advanced dental care, our dentists and friendly staff look forward to creating a life-long relationship with our patients to ensure a bright and healthy smile for years to come.

As committed and dedicated members of the Stockton, CA community, Gentle Dental Stockton dentists have been proudly serving the dental needs of Stockton residents for over 10 years. Our dental specialists are not only multidisciplinary practitioners, but are also multilingual professionals, who are glad to provide dental care and quality service in Arabic, Armenian, Mandarin, Spanish, and English. Gentle Dental Stockton dentist are held to the highest degree of dental care and have built a reputation of excellence in the field of modern dentistry. Our dentists are highly trusted in a wide variety of dental specialties, including cosmetic dentistry, regular examinations, professional cleanings, x-rays, veneers, sealants, fillings, crowns and bridges, teeth implants, dentures, root canals, teeth whitening, and braces and all aspects of general dentistry to make your smile a healthy and radiant smile.

What are you waiting for? A beautiful smile is only a phone call away. Call today to schedule your first appointment with your dentist. 

Gentle Dental

555 West Benjamin Holt Dr. Suite 100
Stockton, CA 95207
Call: 209-323-2494
to schedule an appointment today

Get Directions

Office Hours:

Monday8:00 AM to 6:00 PM
Tuesday8:00 AM to 6:00 PM
Wednesday8:00 AM to 6:00 PM
Thursday8:00 AM to 5:00 PM
Friday8:00 AM to 4:00 PM
Saturday8:00 AM to 4:00 PM

New Patient Forms

Below are links to the new patient forms that you will be asked to complete during your first visit. Feel free to download them using the links below, and fill them out before your visit.

Adult New Patient Form (English)
Child New Patient Form (English)
Adult New Patient Form (Spanish)
Child New Patient Form (Spanish)