Your Smile Is Our Passion

At PS Dental, we help patients to improve their quality of life by enhancing their ability to smile with confidence. We consistently seek opportunities to improve our ability to provide superior dental care. We treat our patients with the same respect and care that we would our own family. Welcome to the PS Dental Family.

Accepting New Patients

Our Goals list

  • 100%
    Patient Satisfaction
  • 100%
    Patient Comfort

Meet the Team users

  • Parisa Sepehri DDS

    read more…Parisa SepehriDr. Sepehri is recognized by the Consumer’s Research Council of America as one of America’s Top Dentists. She is passionate about helping people. That passion inspires her to keep current on the newest technology and treatment in dentistry. Her commitment to continuing education has earned her the privilege to join the Spear Education Faculty Club where she builds on her previous training.

    - Bachelors of Biochemistry from SUNY at Stonybrook
    - Doctorate of Dental Surgery from University of Illinois
    - General Practice Residency at University of Washington.
    - Advanced Training from Spear Education Center

    She has dedicated herself to helping special needs patients by doing hospital dentistry at St. Vincent. Dr. Sepehri also gives back to the community by participating in programs such as Give A Smile Back, ODS Children’s Program, Compassion Tigard and more. She also volunteers in the community with her staff on a monthly basis.

    When not found in a dental office or taking classes, Dr. Sepehri keeps busy by being a mother to a teenage son. She also enjoys traveling, playing tennis, ballroom dancing and interior design.

  • Judy Cutts RDA & FDA

    read more…Judy CuttsJudy is a registered dental assistant and our hospital coordinator. She has worked in dentistry for over 20 years. Judy enjoys helping our special needs patients get the care they need by coordinating care and assisting Dr. Sepehri in the operating room. She loves going to the beach, wine tasting, reading, collecting McMenamins’ stamps, and spending time with her family.×

  • Jessica Leonard RDH

    read more…Jessica LeonardJessica grew up in the Tigard area. She graduated from Dental Hygiene School at Massachusetts College
    of Pharmacy and Health Sciences in 2004 and has been a practicing hygienist for over 10 years now. She enjoys constantly learning what’s new in dental hygiene and preventive care. She loves adventuring with her husband and three young children in the great outdoors. She also enjoys running, hiking, reading and crafting.×

  • Soheila Sabahi RDH

    read more…Soheila SabahiSoheila received her associate degree in dental hygiene in 1989 from Clark College in Vancouver Washington. She is passionate about all aspects of health . Listening to our clients and understanding the circumstances of their health and life style is her way of supporting and improving their oral health. ×

  • I have been seeing Dr. Sepheri and her staff since 2008. I have always had excellent service, no problems what-so-ever. Dr. Sepheri is very gentle and caring. Even her shots don't hurt :) I definitely recommend her to every one of my friends and family. Her cosmetic work is simply amazing as well! A+~ Mygnyl M.
  • I have seen several dentists through the years, but no one in my experience compares to Dr. Sepehri. She has been my dentist for over five years because she and her team really go the extra mile to make you feel comfortable...~ Mike S.
  • Dr. Seperhi and her staff are amazing and the office is wonderful! The entire experience was really great, from a comprehensive consultation on cosmetic dentistry options all the way through the chosen dental procedure itself...~ Bob W
  • I have been seeing Dr Sepehri for many years now and have been extremely satisfied with her services. The office is a beautiful state of the art new office! very comfortable and inviting...~ Vivien K.
  • State of the art office and equipment. Staff is so helpful, friendly and accomodating. My family has been going to Dr. Sepehri for over a decade and we love the new office and location right off I-5, 217 and Hwy 99. Dr. Sepehri has made our visits to her office enjoyable and pain free...
    ~ Sandee C.
  • I am very pleased with how professional this office is and how they can make a visit more enjoyable. I have never been one to enjoy going to the dentist, but they make it less scary and all seem to like what they do here...~ Kris H.
  • I hate going to the dentist! Until I found this one, people are super friendly and very helpful with everything going on. I ended up needing a lot of work after an accident and was worried but they worked with me and I couldn't be happier with the customer service, professionalism, and general service I received there.~ Bryan B.
  • I have been going here for almost 10 years and the staff is always great, personable and professional! Dr. Sepehri is always patient, friendly and does a great job. I would definitely recommend PS Dental to all my friends! A+~ Mike L.
  • I've been going here about a year now, and it's been a terrific experience every time. Everyone in the office is kind and professional and very good at their job. My checkups are thorough, and the paperwork is not stressful. Recommended to co-workers and family.~ Steve T.

Services Provided layers


We see patients of all ages - from as young as 2 years old all the way up to Grandma and Grandpa!


A composite filling is a tooth-colored filling material used to restore decayed teeth. Composites are also used for cosmetic improvements of the smile by changing the color of the teeth or reshaping disfigured teeth.


A dental crown is a tooth-shaped "cap" that is placed over a tooth -- to cover the tooth to restore its shape and size, strength, and improve its appearance. The crowns, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line. An onlay is the same as an inlay, except that it incorporates a replacement for a tooth cusp by covering the area where the missing cusp would be. Crowns are onlays which completely cover all surfaces of a tooth.


A bridge is a fixed dental restoration (a fixed dental prosthesis) used to replace a missing tooth (or several teeth) by joining an artificial tooth permanently to adjacent teeth.


In dentistry, a veneer is a layer of material placed over a tooth, either to improve the aesthetics of a tooth or to protect the tooth's surface from damage. There are two main types of material used to fabricate a veneer: composite and dental porcelain.



KöR is widely recognized as the world’s most effective whitening system – with no need for lights or lasers. KöR offers a cost-effective solution for phenomenal home and office whitening for average patients, to astonishing treatment of tetracycline cases — and everything in-between.


Preventive dentistry is the practice of caring for one's teeth to keep them healthy. This helps to avoid cavities, gum disease, enamel wear, and more. There are many forms of preventive dentistry, such as daily brushing and annual dental cleanings.


Elimination of infection and the protection of the decontaminated tooth from future microbial invasion.


Scaling and root planing, otherwise known as conventional periodontal therapy, non-surgical periodontal therapy, or deep cleaning, is the process of removing or eliminating the etiologic agents – dental plaque, its products, and calculus – which cause inflammation,[1] thus helping to establish a periodontium that is free of disease.


A removable partial denture (RPD) is a denture for a partially edentulous patient who desires to have replacement teeth for functional or aesthetic reasons and who cannot have a bridge (a fixed partial denture) for any number of reasons, such as a lack of required teeth to serve as support for a bridge (i.e. distal...)


Invisalign is the clear alternative to metal braces for adults, kids and teens. These clear aligners are the virtually invisible way to improve your smile.


An oral appliance therapy to treat sleep-disordered breathing, including snoring and obstructive sleep apnea (OSA).


Sports dentistry is the prevention and treatment of dental injuries and related oral diseases, as well as the sharing of information and equipment designed to help protect the teeth, mouth, jaw, and face of athletes of all ages.


We help our special needs community get the care they need by taking them to the Operating Room for dentistry under General Anesthesia.


Consists of intra oral and extra oral cancer screening, TMJ examination, Head and neck muscle examination, periodontal exam and last but not least examination of the dentitions. We also take a series of photos of your teeth to give you a visual tour of your mouth.


Placing teeth in a place that puts function and aesthetics in harmony and leaves muscles strain free is something that requires extensive training beyond what is being taught in dental schools. Dr. Sepehri has been getting this training at the prestigious SPEAR Education Center in Scottsdale, AZ to treat patients that require full mouth reconstruction or a more aesthetic smile design.


As part of our initial exam we screen for TMJ pain, muscle pain and mouth occlusion (misaligned bite). We will evaluate each condition and will recommend a specific treatment for your specific condition.


The facial muscles can become sore and painful as a result of bad bite, grinding, clinching. Botox will temporarily and partially paralyze these hyperactive muscles and will give some pain relief. The head and neck muscle pain can exacerbate migraine headaches. Since 2012 FDA has approved botox treatment for migraine headaches.


We are licensed to administer oral sedation and nitrous oxide (laughing gas) to patients that get apprehensive about dental treatment. Although in our practice we have found that our relaxing and friendly staff and atmosphere will put patients in a calm state of mind without the need for medication or laughing gas. But if necessary we are credentialed and carry the equipment to administer sedation.


Night guards are used to relieve TMJ or Muscle pain either temporarily or permanently. We design specific guards depending on the patient specific problem, bad bite, sleep apnea, TMJ pain, clinching, grinding. Dr. Sepehri has attended multiple seminars and study clubs related to the design of night guards for each specific problem.


Biolasea diode laser for soft tissue treatment it is used for frenectomies (such as treating tight tongue, gingivectomy (esthetic gum reconstruction) Biopsies and excision of lumps and masses, abscess and ulcer therapy, cold sore treatment and periodontal pocket cleaning and reduction. The advantage of laser gum surgery is that the healing is fast and painless unlike scalpel and suture surgeries. The Biolase can also be used to perform laser teeth whitening when beneficial.

Diagnodenta laser caries detection technology used to diagnose dental caries under the intact enamel when it is impossible to find with traditional instruments. In the case of over fluoridation the enamel (the outer layer of the tooth) can stay intact while caries grow under that layer. Diagnodent can find these caries by reading and analyzing through fluorescent light. Healthy structures produce very little to no fluorescence. Carious teeth will show fluorescence in proportion with the level of caries

Prophyjetan air polishing system delivers a precise air, water, and powder (sodium bicarbonate) mixture at a jet air polishing insert tip. Prophyjet removes stains and polishes teeth enamel without contact – reducing abrasion, pressure and heat build-up that could cause discomfort for sensitivity. It is ideal to use for patients in orthodontic treatment or patients with excessive staining. When removing heavy stains air polishing shortens the time spent polishing and minimizes the need for strenuous stain removal with hand instruments.

Ultrasonic ScalersWhen treating patients with gum disease, the removal of bacterial deposit and calculous (tartar and build up from the tooth surface) is carried out by scaling and root planning of root surfaces. This can be done by either manual scaling, power scaling (ultrasonic scaling) or both. The advantage of using powered scaling is the efficiency, comfort and the less time for a patient in the dental chair.

Rotary EndodonticsCompared to manual method for root canal treatment is more effective, faster, quieter and more reliable with less chance of complication. The fast treatment time in conjunction with quieter instruments make for a much more comfortable experience for patients.

Ministar Forming Machinesuperior compared to the traditional vacuumforming machine in forming orthodontic retainers, bleaching trays, athletic mouth guards and night guards. By using positive air pressure to force plastic into position, it allows a perfectly even flow of air to equally compress all parts of the plastic material. The accuracy and uniformity is superior to the traditional to the traditional vacuum-forming machine.

Articulator a mechanical device that records and reproduces the relationship between patients upper teeth, lower teeth and their temporal mandibular joint (TMJ) Its use becomes crucial when performing full mouth reconstruction, dentures, partials, implants, crowns and bridges. It will represent patients’ facial and dental relationship without having to send the patient to the dental labs.

State Of The Art SterilizationWe take sanitization incredibly seriously. We use the best equipment and maintain it to the highest standard.

Digital X-Raysrelieve a lot of the discomfort for patients around x-rays. They do not require developing so we can expedite the time a patient has to take out of their day for their check-ups.

Paperless ChartsMoving from paper-based charts to paperless charts has helped us keep our office green!

VELscopean Oral Assessment System. It is a handheld scope that applies tissue fluorescence visualization to identify oral mucosal abnormalities.

Magnification Loopsa tool Dr. Sepehri uses to see small details on the surface of teeth to help identify decay at its earliest.

Computers In Every Operatorykeeps the office running smoothly, keeps communication quick and enables us to shorten your time waiting in the dental chair.

Dental Pure Purified Watersystem keep us in line with federal regulations for sanitization, it’s also been the purification system used on every NASA manned space ship since 1976.

Intra Oral Photosenable us to show you the current status and the progress of your smile. It also enables us to better support your medical claims for quick and more accurate processing


DVD Glasses
Stereo Headphones
Hot Towels
Hot Beverage Station
Neck & Back Rolls
Play Room For Children
TV & Fireplace in waiting room
Spa-Like Atmosphere
Friendly And Welcoming Staff

Location & Hours map

12017 SW 70th Avenue
Tigard OR 97223
(503) 574-4000
8:00 am - 6:00 pm
8:00 am - 6:00 pm
8:00 am - 6:00 pm
8:00 am - 1:00 pm

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