Cosmetic
Cosmetic
Family

Restorative
Restorative
Orthodontics
Orthodontics

Leinassar Dental Excellence

Here at Leinassar Dental Excellence, we are committed to making sure your dental experience is comfortable, personalized & affordable. We are part of a trusted Astoria tradition of clinical excellence, offering state-of-the-art services.

We are conveniently located in the Astoria area & are here for all your dental needs. With a focus on family & cosmetic dentistry, we are happy to help you achieve a beautiful smile in our comfortable, safe & friendly environment. Our team offers a wide array of procedures, including Invisalign® clear orthodontics, dental implants & sedation dentistry. We look forward to providing you & your family with the dentistry you deserve.

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Dr. Jeff Leinassar

Dr. Leinassar is a gentle, caring dentist who uses the most advanced materials & procedures available. He practices comfortable, health-centered dentistry with a strong emphasis on getting to know each of his patients. In addition to his technical proficiency, Dr. Leinassar is a careful listener & will explain beforehand what treatment is best for your individual needs. He has been part of an Astoria tradition of dental comfort & care for over 40 years.

Dr. Leinassar graduated from the Oregon Health Sciences School of Dentistry in 1975 & has dedicated his professional career to providing you with the best that dentistry has to offer. He is continually improving his practice with the latest techniques & products to bring you state-of-the-art, personalized dental care in a sterile, safe environment.

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Proud member

Meet the team

Here at Leinassar Dental Excellence, we are committed to making sure your dental experience is comfortable, personalized & affordable. We are part of a trusted Astoria tradition of clinical excellence, offering state-of-the-art services. We are conveniently located in the Astoria area & are here for all your dental needs. With a focus on family & cosmetic dentistry, we are happy to help you achieve a beautiful smile in our comfortable, safe & friendly environment. Our team offers a wide array of procedures, including Invisalign® clear orthodontics, dental implants & sedation dentistry. We look forward to providing you & your family with the dentistry you deserve.

learn more

Patient Reviews


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Convenient Hours Before & After Work or School

At Leinassar Dental Excellence, we provide you with the preventive & restorative care you need without having to take time off from work or school. It’s just another way we show our patients how much we care.
New patient? Save time, complete these forms & bring in to your first appointment!

We always strive to find an appointment at the time that works best for you. Please fill out the form below to let us know when you would like to come in & one of our staff members will contact you as soon as possible to finalize your appointment.

Comprehensive Dental Care in One Convenient Location

At Leinassar Dental Excellence, we have extensive experience in all aspects of modern dentistry. We offer comprehensive dental care, including everything from the preventive education & routine cleanings that help to reduce dental problems to expert solutions for the dental issues our patients face–like orthodontics & restorative dentistry–all in one convenient location.

Your Safety Is Our Top Priority

We maintain the highest standards of sterilization & patient safety, including those of the Centers for Disease Control, in order to best safeguard your health & well-being.

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One Convenient Location for All of Your Dental Needs
We are located at the foot of 14th Street on the waterfront.

Same-Day Appointments!

Locate Our Office

Leinassar Dental Excellence1414 Marine Drive
Astoria, OR 97103

Tel: 503-325-0310

Monday: 8am-6pm
Tuesday: 9am-6pm
Wednesday: 7am-4pm
Thursday: 7am-4pm
Friday: By Appointment Only
Saturday: By Appointment Only.

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