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Welcome to Our Practice

Welcome to the office of Sein H. Siao, D.M.D. and Associates, a leading dental care practice in Wrentham, Massachusetts. We understand the importance of good dental hygiene and oral care and are committed to providing you the best care in a fun, pleasant environment.

From common problems to gum disease, we provide an array of dental services to meet your needs all in one convenient location. Using the latest technology, our experienced staff works together as a team to give you exceptional quality treatment from the time you walk in for your initial visit.

We thank you for your interest in our services and the trust you have placed in us. Please contact us if you have any questions.


Meet Our Staff

Learn Who We Are

  • Anuradha Deshmukh,

    Dr. Deshmukh (also known as Dr. D) is a Diplomate of the American Board of Periodontology, and her clinical expertise is in periodontal surgeries, dental implants, implant site preparations, regenerative procedures, and mucogingival plastic surgeries. Dr. D is passionate about enhancing the quality of the patient's oral health and is particularly interested in applying innovative techniques in periodontology and implantology that result in improved outcomes. Dr. D says, 'What motivates me the most is to see a change in my patient's oral and overall health as a result of a little contribution that I make through my work.'

    Dr. D has been featured in the Top Dentists lists in Boston Magazine and Rhode Island Monthly in 2018,2019 and 2022. Dr. D holds a Master of Science in Dentistry (MSD) (2004), a Certificate of Advanced Graduate Study (CAGS) in Periodontology and Dental Implantology (2010), and a Doctor of Dental Medicine (DMD) from Boston University (2017). She is an active member of the American Academy of Periodontology, the American Dental Association and the Massachusetts Dental Society.

    She enjoys spending time with her husband Nilay, two daughters Aadya and Shreya and their dog 'Spice'. She also likes to volunteer and socialize with her multitude of friends. Her other hobbies are reading, listening to music, dancing and traveling.

  • Jeanne C. Un,

    Dr. Un arrived in Massachusetts by way of DC, Maryland, and Delaware to attend Tufts University as an undergraduate. Following graduation, she obtained a MS in Occupational Therapy and worked with pediatric populations in public school and hospital settings.

    With a desire to provide a greater scope of care, she pursued a career in dentistry and received her DMD from Tufts University School of Dental Medicine in Boston, MA.

    Committed to providing comprehensive care and ensuring a gentle experience, Dr. Un looks forward to working together with individuals to identify and accomplish dental goals of health, function and esthetics. She believes active participation in education is a means of professional and personal growth.

    Dr. Un loves to travel, read, spend time at home with friends and family and is involved in a variety of activities including tennis, squash, spinning, swimming and teaching barre.

  • Sein H. Siao,

    Since 1999, Dr. Siao holds a faculty position at Boston University School of Dental Medicine teaching both clinical and pre-clinical education. He is co-leader of the Cerec Crown course at BUSDM including hands-on and lectures. Also, Dr. Siao proudly lectures yearly at the Yankee Dental Conference.

    Dr. Siao joined Dr. Fisher’s practice in 2001 and became a partner in 2003. He is happily married to wife, Bopha Chuop, who is also a Dentist. They have two sons, Keenan and Aiden.

    His hobbies are swimming, golf, dining out and skiing.

    Member of:

    • Massachusetts Dental Society
    • American Dental Association


What Our Clients Say About Us

    Very Professional. My teeth feel very clean and refreshed when I walk out of their office.

    Brandon M.

    Teeth Clean. New to the office and could not have been more pleased with the experience. Friendly, knowledgeable and professional.

    Matt P.

    Great. Recently brought my mom and myself in for back to back spots for cleanings Cris was there and as always was great to talk to her. Really good with patients Andy a thorough job Easily made to a future appt for 6 months and the office staff was very helpful.

    Jim C.

    Always friendly staff. Have been coming here for ages love this place

    Debra D.

    Great staff. For someone who doesn't enjoy going to the dentist, I find this office to be extremely professional and friendly. I would say this is the best dentist that I have ever used. I recommend this office to anyone who mentions their dentist.

    Joe C.

Read about helpful topics

  • Bridges

    When you lose a tooth, it affects not just the appearance, but the function of your smile. It can be difficult to eat or speak naturally, extra stress is put on your remaining teeth, you’re at greater risk for developing gum disease, your remaining teeth can shift out of position causing bite problems, ...

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  • Orthodontic Retention

    Getting your braces off is definitely a cause for celebration. You can finally enjoy your new smile after all that work and effort! But getting your braces off isn’t the end of treatment. Once your braces come off, you will enter the retention period of treatment. During the retention period, you will ...

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  • Inlays and Onlays

    Inlays and onlays are indirect restorations used to repair molars and premolars damaged by decay or trauma. Inlays and onlays fit more securely and last longer than fillings, strengthen compromised teeth, and preserve more natural tooth structure than crowns. An inlay is used to restore the center of ...

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  • Dental Implants

    If you have recently dealt with an injury or disease that affected your oral health, there are options available to recover the smile you once had. You may even be able to achieve a better smile than the one you had. Dental implants make it possible to renew your smile if you have lost some teeth. There ...

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  • Tooth Decay Prevention

    What is tooth decay? Tooth decay begins with the Streptococcus mutans bacteria. These bacteria join with food particles and fluids in the mouth to create plaque, a constantly forming biofilm which sticks to the surface of tooth enamel. The bacteria in plaque convert the sugars in our foods into lactic ...

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  • Root Canal Treatment

    Every tooth has two sections: a crown, the visible part of the tooth above the gum line, and one or more roots, which anchor the teeth within the jaw. Each tooth has three basic layers: an outer layer of hard enamel (which protects the crown) or cementum (which covers the root), a middle layer of softer ...

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  • Fillings

    The bacteria in plaque produce acids that erode tooth enamel, eventually creating a hole, or cavity, in the tooth surface. Left untreated, this decay can spread to the interior of the tooth, and might lead to the need for a crown, a root canal, or even extraction. When caught early, your dentist can ...

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  • Veneers

    A dental veneer is a thin, durable porcelain shell that is custom-fabricated to cover the front of a tooth. Veneers can restore the appearance of teeth with chips, cracks, and stains, can close small gaps between the teeth, and can reshape misshapen or slightly misaligned teeth. Veneers are a popular ...

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  • Educational Videos

    Take a few minutes to watch our educational videos and learn more about different dental treatments and procedures. Video topics include general & cosmetic dentistry, Implants, oral health and hygiene, orthodontics and preventative dentistry. ...

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  • Laser Decay Diagnostics

    Using lasers, dentists can detect tooth decay that is not yet visible and would otherwise be undiagnosed using traditional methods. Laser cavity detection is based on the fact that healthy tooth structure reflects light, or “fluoresces,” differently than does decayed tooth structure. Teeth with decay ...

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Our Location

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Hours of Operation

Our Regular Schedule

Primary Location


7:30 am-5:30 pm


7:30 am-5:30 pm


8:00 am-5:00 pm


7:30 am-5:00 pm


8:00 am-3:00 pm