Welcome to Middletown Valley Dentistry, whether you want to pay us a visit for a simple cleaning or need to schedule a consultation appointment with one of our experienced dentists, our team of dental health experts can swiftly attend to your specific needs. 


From optional cosmetic services to the oral surgeries you need, our family stands prepared to help your family today.


In order to ensure that your visit is as swift as possible, please feel free to print and complete our patient forms.


 Middletown Valley Dentistry understands that your dental health cannot be treated lightly so we offer you the best service.




For appointments, please call (301) 293-6828807.

E Main St.​Middletown, MD 21769

Office Hours:

Monday - Thursday 7:30am-4pm

Friday 7:30 am-12:30pm


Dr Dan is a proud 1982 graduate of Loma Linda School of Dentistry in Loma Linda California.  He has been in practice for nearly 33 years and has enjoyed the thousands of patients he has been honored to treat.  Over the years Dr Dan has adopted many new and exciting technologies to make his patients visits more pleasant and less invasive.  

He was one of the first to adopt hard tissue lasers into his practice and went on to do research and write FDA papers for approval of several oral surgery procedures used throughout the world.  He is a founding member of the World Clinical Laser Institute and achieved the highest level of proficiency (Mastership Level) in that organization.  He became a WCLI examiner and has traveled the world administering tests to dentist as far away as Taipei and Dubai. He has lectured on techniques and incorporation of lasers into the dental practice around the world. 

In 2001 Dr Dan introduced 3D Cone Beam Radiography to Maryland, installing the first Cone Beam Xray in the state. He became the clinical director for PreXion 3D a Southern California company and trains and lectures nationally and internationally about the benefits of 3D radiology. 

He has written many articles on CBCT in Clinical journals. Currently he is the director of education for Champions Dental Implants in North and South America. Champions uses a Minimally Invasive Technique for the placement of implants and was founded in Germany 8 years ago and has experienced rapid growth over the years.

Most recently, Dr Dan has studied and is incorporating Dental Sleep Medicine into the practice.  Sleep Apnea is one of the fasted growing and most under diagnosed problems facing Americans.  He is happy to bring this to the Middletown area.

For those of you who wish you had the perfect smile, Dr Dan is also a certified Invisalign provider, he has been involved with orthodontics for over 23 years and will change your smile to the one you always wanted.


Dr. Chai was born and raised in Silver Spring, MD.  He received his undergraduate degrees in Microbiology and Finance from the University of Maryland, College Park.  He then worked as a Financial Analyst for 3 years at Lockheed Martin before changing careers.  Dr. Chai went on to attend the University of Maryland School of Dentistry and graduated Magna Cum Laude in the top 5% of his class.  He also completed the Implant Clerkship and was selected to be on the Dental School Admissions Committee.

Dr. Chai completed his dental residency with the Baltimore Veterans Affairs Hospital where he learned how to deliver comprehensive dental care to medically complex patients in the hospital setting.  Dr. Chai has received several awards such as the American College of Prosthodontics Achievement Award, Dean's Award for Community Service and was selected to be in the OKU Honor Society.  

He is a man of faith and is passionate about improving the lives of others and making an impact in the community.  As the Community Service Chair of his class, he organized various community service events.  He has volunteered at several Mission of Mercy events where he helped provide free dental care to the underserved population.  His core mission to to make every single patient as comfortable as they can be while providing high quality and ethical dental care.  Dr. Chai is also Invisalign certified.  

In his spare time, Dr. Chai enjoys spending time with his wife (Joy) and friends, and they are expecting their first child in April 2016.  He also enjoys playing tennis and basketball, hiking, traveling, doing yoga and rooting for all Washington D.C. sports teams.  


Cosmetic Dentistry is the use of dental procedures and techniques to improve the appearance of one's teeth, smile and face. The focus is to alter the teeth in shape, size, color or placement in order to make your smile more pleasing.  Just about any procedure that improves the appearance of your teeth or smile could be considered cosmetic. Whether it is teeth whitening, veneers, or replacing old silver-colored fillings with durable tooth-colored ceramic, if it makes your smile more beautiful, it can fall into the category cosmetic dentistry.


Dental implants are a great way to replace missing teeth and also provide a fixed solution to having removable partial or complete dentures.  Implants provide excellent support and stability for these dental appliances.  Dental implants are artificial roots and teeth (usually titanium) that are surgically placed into the upper or lower jaw bone.  The teeth attached to implants are very natural looking and often enhance or restore a patient’s smile!  Dental implants are very strong, stable, and durable and will last many years, but on occasion, they will have to be re-tightened or replaced due to normal wear.


Our mission is to provide exemplary dental care that provides the most comfortable and relaxing environment with great affordability and excellent value. We treat our patients the way we ourselves want to be treated — with compassion and integrity. We utilize proven, advanced technologies and efficient systems. Our dentists and team are knowledgeable, respectful, detail oriented, caring and very personable.  In addition, we take special interest in helping the fearful or sensitive patient, who may have had difficulty before, and may be avoiding dental treatment because he or she has been hurt elsewhere.


We will see dental emergencies and address any issues relating to tooth discomfort.  We can provide a variety of oral surgery procedures including extractions, wisdom teeth extractions, bone grafting, tissue grafting, sinus lifts and biopsy procedures. We will ensure that your experience is comfortable and personable. 


Porcelain veneers, or dental veneers, are thin shells that are laid onto the teeth and bonded to the surface. Although they can be made of different materials, porcelain is frequently used because of its durability and realistic appearance. Porcelain veneers are a more conservative alternative to dental crowns since they require less removal of the tooth’s original surface. With porcelain veneers in place, cosmetic dentistry patients can expect straighter, whiter, and more even teeth.


Dental crowns are tooth-shaped “caps” that are custom-made to fit over your natural tooth. Crowns are tooth-colored and very esthetic, and will restore the shape, strength and appearance of your tooth. When cemented in place, crowns fully cover the visible portion of your tooth that lies above the gumline.A crown is recommended in a number of situations in order to restore the function and appearance of a tooth. Teeth with very large fillings and/or cavities, cracked or broken teeth, or teeth that have had a root canal often require crowns. A crown will restore a damaged tooth and improve the durability, chewing function and cosmetic appearance of your tooth and protect it from further damage.


Invisalign is not only for esthetic purposes. Invisalign is also used to help with the health of your gums, teeth, and overall oral health. You might consider Invisalign if you could benefit from traditional, metal braces, but have concerns about their appearance. Invisalign fixes many of the same dental problems as traditional metal braces, but it is virtually invisible to the naked eye and can be removed when needed (e.g., for eating or brushing and flossing teeth).  Overcrowding, large gaps between teeth, cross bites, overbites, and under bites are all problems commonly corrected with Invisalign orthodontic treatment. In fact, the results of traditional metal braces and Invisalign are nearly identical in the end.


Lasers can be used to treat periodontal disease. Current controlled studies have shown that similar results have been found with the laser compared to specific other treatment options, including scaling and root planing alone. Scaling and root planning is a traditional non-surgical therapy used to treat periodontal diseases.