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Experience & Approach

Dr. Andy Le is a board-certified dental implant specialist with over 20 years of dentistry and oral surgery experience. From single dental implants and implant-supported dentures, to full mouth restoration and reconstruction, Dr. Le utilizes the most advanced technology and surgical techniques to achieve the best results for his patients. He believes the key to ensuring the best results for his patients start with good communication and setting realistic expectations.

Education & Accreditation

Dr. Le is a Diplomate of the American Board of Oral Implantology and Implant Dentistry (ABOI/ID), a designation of the highest level of competency in implant dentistry. He is a Fellow of the International Congress of Oral Implantologists, and received his Master of Oral Implantology at the University of Nevada, Las Vegas-School of Dental Medicine. Dr. Le earned his Doctor of Dental Surgery (DDS) degree from Marquette University in Milwaukee, Wisconsin, and his Bachelor of Science (BS) degree in Biology from the University of California, Santa Barbara.

Affiliations & Accolades

Doctors Improving Healthcare Inc. recognized Dr. Le as one of the “Bay Area's Top Doctors & Dentist" for 2010. He's an active member of the American Dental Association, the California Dental Association, the California Implant Institute, and Alameda County Dental Society. He is also a speaker and lecturer for various dental implant courses.

As an associate dentist, Dr. Schexnayder provides exceptional dental care for her patients including fillings and cleanings, along with assisting in complex treatment planning and surgical cases. She is a graduate of the University of California, Los Angeles School of Dentistry and completed her Dental Post-Bachelor program at San Francisco State University. Her research in Parental Functional Health has been published in the Journal of the California Dental Association, and she is an active member of the Contra Costa Dental Society.

When she’s not creating beautiful, healthy smiles at Le Chabot Dental, Dr. Schexnayder spends her time with her new husband baking, hiking and swimming. She is also an avid reader of fantasy novels such as Harry Potter and The Belgariad.

Mandi Chhina, DDS is a family and cosmetic dentist at Pinole Family Dental in Pinole, California. She provides a full scope of general and cosmetic dentistry services.

Dr. Mandi received her graduate degree from Sri Guru Ram Das Institute of Medical Sciences & Research in Amritsar, India in 2000. She's a fellow of the International Dental Implant Association and a member of the American Dental Association, California Dental Association, and other professional organizations.

Dr. Mandi strives to improve the oral health of every patient by encouraging them to participate in preventive care. She is honored and delighted to treat the men, women, and children of diverse backgrounds that live in this wonderful community.

When not caring for her patients, Dr. Mandi likes to practice meditation and create and cook new recipes. She is married to Dr. Marc Chhina -- also a dentist at Pinole Family Dental -- and they enjoy raising their two beautiful daughters.

Dr. Gaganjot Khera, DDS, is the owner and lead dentist at Signature Smiles Dental Group in Milpitas, California. With more than 15 years of clinical experience, she provides comprehensive family, cosmetic, restorative, and preventive dental care for patients of all ages. Dr. Khera is committed to helping patients achieve healthy, confident smiles through personalized treatment plans, advanced technology, and compassionate care. A graduate of the University of Oklahoma College of Dentistry, Dr. Khera combines evidence-based dentistry with a gentle, patient-centered approach. She offers a wide range of services, including preventive exams and cleanings, cosmetic smile enhancements, Invisalign® clear aligners, veneers, teeth whitening, crowns, root canal therapy, and emergency dental care. Known for her warm chairside manner, Dr. Khera takes the time to listen to her patients' concerns, thoroughly explain treatment options, and ensure every patient feels comfortable and informed. Her goal is to build long-term relationships based on trust, education, and exceptional clinical outcomes. Dr. Khera is an active member of the American Dental Association and the California Dental Association and remains dedicated to continuing education and the latest advancements in dentistry. She has been recognized as an America's Best Dentist recipient in 2024 and 2025 for her commitment to excellence in patient care. Fluent in English, Hindi, Punjabi, and Urdu, Dr. Khera enjoys connecting with patients from diverse backgrounds throughout the Bay Area. Outside the office, she enjoys traveling, exploring new cuisines, and spending time with her family. Specialties & Interests Family Dentistry Cosmetic Dentistry Invisalign® Clear Aligners Smile Makeovers Teeth Whitening Veneers & Crowns Root Canal Therapy Preventive Dental Care Emergency Dentistry Restorative Dentistry

Harpreet Tiwana, DDS, is a general dentist at Laguna Oaks Dental in Elk Grove, California. He has been working in the greater Sacramento region for over five years. 

He graduated from New York University in 2002 and completed his general practice residency in Chicago, Illinois. Dr. Tiwana then completed a mini-residency in pediatric dentistry from the University of Minnesota as well as one in endodontics (root canal treatment) offered by prominent endodontist Dr. John West at IDEA Academy in California. He has also been extensively trained by Dr. Michael Duggan, DDS, PhD, of The Duggan Institute of Dentistry in Costa Mesa, California.

Dr. Tiwana has taken several continuing education courses including courses offered by Dr. Gordon Christensen in Provo, Utah, and continually updates his knowledge through continuing education courses at the University of Pacific, San Francisco, and various other courses. 

He is committed to providing excellent care to his patients and also caters to fearful patients by providing nitrous oxide sedation. Dr. Tiwana enjoys treating both children and adults, and enjoys listening to his patients and helping them attain optimal dental health.

In his off time, Dr. Tiwana enjoys spending time with his family, reading, and traveling. 

MODERN DAY DENTAL

We strive to use modern technology in order to promote ease and convenience for our patients. When you come in for a check up, we can show you first hand how your teeth look by taking high quality photos that are available to view immediately on our computer screens. Professional opinion, along with your personal preferences are all taken into consideration when we create your personalized treatment plan.

Modern technology in the dental field is top priority for Dr. Andrew Day. New technology and studies are presented everyday in dentistry. Dr. Day strives to learn and study the best of the best out of all that is offered. By frequenting seminars and continued education classes locally and nationally, only the best practices are considered when planning out each patient's treatment.

Meet Our Team    Meet Dr. Day

Urvashi Keswani, DDS, is an Associate Periodontist at Perio & Implant Center of Monterey Bay and Silicon Valley, with locations in Sunnyvale and Monterey, California.

Born and raised in a country that is a dazzling mosaic of vibrant colors, rich traditions, and unforgettable flavors—India!

Dr. Keswani moved to the United States to pursue her DDS at UCLA School of Dentistry, after which she relocated to New Jersey for specialty training in Periodontics at Rutgers School of Dental Medicine.

The field of periodontics fascinated her due to its focus on preventative care and its crucial role in maintaining overall systematic health. The opportunity to address often-overlooked aspects of dental health and make a real difference in patients' lives is what drove her to pursue this specialty.

When Dr. Keswani is not perfecting smiles, you'll find her taste-testing unique snacks, redecorating her space like a DIY guru, or getting lost in a murder mystery novel.

Thanks to her husband, she is also an honorary NBA fan. Now, she's an expert at pretending to understand basketball while passionately cheering for his favorite team.

Dr. Keswani is also a trained Indian classical music vocalist and a self-taught keyboard player.