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Business Details
We have been proudly serving the Hayward community since 2005, bringing over two decades of dental experience to every patient. Our team, led by Dr. Quynh Tonnu, DDS, combines advanced dental technology with a warm, familyoriented approach. We prioritize patient comfort by explaining each procedure stepbystep and offering headphones for entertainment during treatment. Our preventive care program includes regular checkups, cancer screenings, patient education, nightguards, mouthguards, and breath treatment to maintain longterm oral health. We specialize in restorative services such as toothcolored fillings, porcelain veneers, bonding, allporcelain crowns, onlays, inlays, bridges, and naturallooking dentures. We perform root canal therapy with precision to preserve teeth and relieve discomfort while maintaining aesthetic results.

We adhere to the highest professional standards, ensuring that every treatment is durable, comfortable, and visually pleasing. Our commitment to patient satisfaction drives us to exceed expectations through personalized care and clear communication. We encourage patients to ask questions about treatment options, payment plans, and alternatives, fostering informed decisionmaking. We are conveniently located near the Hayward BART station with free rear parking, making quality dental care easy to access. We welcome new patients and invite them to book appointments online or by phone to experience our dedicated service.
Highlights and features
  • We have served patients for over 20 years.
  • We use the latest and best-made materials for fillings.
  • We provide headphones for Netflix or music during treatment.
  • We offer free rear parking near Hayward BART station.
  • We explain every procedure stepbystep to ensure patient comfort.
Services
Preventive Care
Our preventive care program includes regular checkups that combine cleaning, hygiene, and a thorough dental exam. We also provide cancer detection screenings, patient education on oral hygiene, and custom nightguards or mouthguards for protection. Breath treatment is available to address halitosis, ensuring fresh confidence alongside comprehensive preventive maintenance.
Restorative Dentistry
Our restorative dentistry repairs damaged teeth using toothcolored fillings made from the latest and bestavailable materials. We also place porcelain veneers, bondings, and allporcelain crowns, onlays, inlays, and bridges for durable, aesthetic results. Naturallooking dentures and partial dentures, with or without metal, are crafted to restore function and comfort while maintaining a pleasing appearance.
Tooth Colored Fillings
We place toothcolored fillings using only the latest and bestmade materials for strong, lasting repairs. These fillings match the natural shade of your teeth, providing a seamless appearance that blends with your smile. The procedure preserves tooth structure while preventing further decay and ensuring comfortable chewing function.
Porcelain Veneers
Our porcelain veneers are thin ceramic shells bonded to the front of teeth to improve color, shape, and alignment. They correct chips, gaps, and discoloration while offering a stainresistant surface that lasts for years. The minimally invasive procedure preserves tooth enamel and delivers a natural, radiant smile tailored to each patient.
Root Canal Therapy
We perform root canal therapy to remove infected pulp and relieve pain while preserving the natural tooth structure. The procedure uses advanced techniques to clean, disinfect, and seal the canals, preventing future infection. After treatment, we restore the tooth with a crown or filling to ensure strength, function, and a comfortable bite.
Reviews (4)
Solomon Trapp
Nov 29, 2020 Report
I've been coming here with my family for a few years now and I love their customer service. Their quality here is amazing. They take care of their patients well and have met my expectations always.
Vee M.
Aug 31, 2020 Report
I have been a patient of Dr. Tonnu for over a decade. The entire staff is amazing at what they do. They are honestly the best dentist office in the Bay Area. I have referred many of my friends and family over the years. They are very sweet, funny, professional and trustworthy. I would give them 100 stars if I could.
Alexis G.
Jan 08, 2020 Report
Dr. Tonnu and the staff are so caring and helpful. All my life I've dreaded going to the dentist, and I still get severe anxiety about it. But Dr. Tonnu and the hygienists are so understanding and gentle and do whatever they can to make me feel comfortable.
Lori D.
Jun 12, 2019 Report
I went to A Street Dental today and loved it. This was the only dentist I saw who was not a corporation so I called them and got in same day for teeth cleaning. This place was so warm and friendly I could have hung out with everyone of the staff members including the DDS and feel like I've known them forever. Had my teeth cleaned and (shame on me for not remembering her name) the lady who cleaned them and xrayed them has honed in her craft amazingly!

Never have I had xrays without biting down at least 2 times in severe pain until now. the cleaning was great and she never rested her hands on my jaw while working and used a tissue every time she sprayed some water on my face (which was hardly a spray) to dry it up. Dr. Tonnu was also wonderful.never once rushing me (and I'm a talker.lol). She heard my needs and we went in the direction that best fit me. I cant leave out the lady's at the front desk.super personable and completely professional while still having a few laughs with me. Very impressed!