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General Care

Dr. Leinassar has extensive experience in the diagnosis, treatment, management & coordination of dental services to care for his patients & their families. General Dentistry includes everything from preventive education & regular visits to fillings, crowns, bridges & more. Moreover, Dr. Leinassar provides care for children & adults, & know how best to care for both. At Leinassar Dental Excellence, your continued oral health is our top priority.

Satisfaction Guaranteed!

If you are not completely satisfied with your dental care from Leinassar Dental Excellence, we will correct it or refund your money. Our friendly & courteous staff promises to give you a warm welcome & assist you with any questions or concerns you may have. Serving Astoria for over 40 years, we all share a commitment to providing quality family & cosmetic dentistry with a gentle touch, in a caring & relaxed atmosphere.

Emergency Dental Care

We recognize that dental emergency situations do arise & at Leinassar Dental Excellence we will do our best to respond to your problem promptly. Regardless of whether it is as simple as a tooth filling or a complicated procedure requiring a cosmetic dentist, we can provide you with assistance. If the problem arises when the offices are closed, our answering service will forward your message to Dr. Leinassar.

Family Dentistry

Leinassar Dental Excellence offers dentistry for the entire family. We understand that adults & children have different needs & we address them all. Adults want the best technology, the most informed doctor & the highest-quality care, while kids want to be comfortable & respected. That’s why our dentists have extensive experience working with both adults & children. We can make your dental experience more enjoyable for everyone.

Preventive Dentistry

This includes our regular dental hygiene visits, sealants, mouthguards & patient/parent education. We place a high emphasis on sealants, which are effective in preventing tooth decay on the biting surfaces of chewing teeth. This plastic coating, which is clear or tooth-colored, is applied to deep pits & grooves. This seals them in the areas where decay is most likely to begin. At less than half the cost of conventional fillings, without anesthetics or drilling, sealants are one of the most important preventive services Dr. Leinassar offers.

Digital X-Rays

Leinassar Dental Excellence offers in-office digital x-rays for your convenience. Digital x-rays are computer-generated images that require up to 90% less radiation than conventional film-type x-rays. Instead of using the traditional silver-oxide x-ray film, which must be developed & then fixed in caustic & environmentally damaging solutions, the new system takes pictures via a small electronic sensor. A picture of the tooth is instantaneously transmitted onto the monitor in the treatment room so we can see your teeth & surrounding structures immediately.

Oral Cancer Screening

Early detection is key in the battle against cancer, & this is no different with oral cancer. Even if you don’t smoke, keep in mind that 25% of oral-cancer diagnoses are for non-smokers. It’s important that every patient receive a simple & pain-free exam from Dr. Leinassar. Remember that when caught early, oral cancer has an 80 to 90% survival rate. So don’t put off your examination another minute!

Mercury-Free Dentistry

Mercury amalgam (silver) fillings may be hazardous to your health. At Leinassar Dental Excellence, we believe that the overall health of our patients always comes first. Accordingly, at our office we have elected to only use new & advanced fillings made of tooth-colored materials that contain no metals or mercury. It’s just one more way that we show our patients how much we care. Your safety & smile are our primary concerns!

Nitrous Oxide Sedation

Also known as laughing gas, nitrous oxide is a great tool for patients who may be uneasy about their dental procedures. The beauty of laughing gas is that your dentist can constantly adjust your level of sedation during the procedure & once it is shut off, the effects stop almost immediately. A few minutes after the procedure is complete, you’ll be back to normal!

Dr. Leinassar is certified to administer nitrous oxide for nervous patients. Call today to schedule your appointment or to see if you’re a candidate for nitrous oxide sedation!

Oral Sedation (Sleep Dentistry)

With Oral Sedation (also known as Sleep Dentistry), you actually won’t be asleep, but in a state of sedation which allows the patient to feel slightly in control & gives them the ability to answer the doctor’s questions. Oral sedation is very safe when monitored by a certified dental professional. Your gag reflex will be minimized, making your procedure an easy one!

TMD (Jaw Pain) Therapy

Commonly misdiagnosed or overlooked, a subtle misalignment in the temporomandibular joint can be a common, significant source of head & neck pain. If you have frequent & severe head or neck pain, you owe it to yourself to investigate our doctor’s life-changing approach to correcting these TMJ problems.

Call Leinassar Dental Excellence today for your TMJ consultation with Dr. Leinassar!

Endodontic Therapy

With advanced & surprisingly comfortable endodontic therapy, you have an alternative to tooth removal, which will allow you to retain full use of your natural teeth. Endodontic therapy involves the removal of tissue from inside the tooth that has been damaged by trauma or infected by decay. After the pulp is removed, the pulp chamber & root canal system is cleaned, disinfected & sealed. Once a root canal is completed, two other procedures are generally needed to complete the restoration of the tooth. These are done by the general dentist.

Healthy Gums Lead to a Healthy Body

Periodontal (gum) disease can lead to more than just an unsightly smile—it can cause loss of teeth & eventually, if left untreated, other more serious health problems. Called gingivitis in its early stages, periodontal disease is caused by excessive toxic bacteria (found in plaque) that attack your mouth’s soft tissues. Early warning signs of this disease include red, swollen, or bleeding gums. If caught early, we can help you reverse the damage. If detected late, we can use one of the many effective restorative dentistry procedures to restore your mouth to its healthy, beautiful state. Let Dr. Leinassar help you keep your teeth & gums strong & disease-free with regular examinations & cleanings.

Sleep Apnea & Snoring Appliances

Did you know that people with sleep apnea can stop breathing for 10-30 seconds at a time while they are sleeping? This can happen up to 400 times every night! If you suffer from sleep apnea or snoring, Dr. Leinassar can help. Through the use of oral appliances, you’ll avoid the health consequences of sleep apnea, including increased rates of heart disease & strokes. These devices will also help relieve snoring, leading to a better night’s rest for you & your partner. For more information, call Leinassar Dental Excellence today at (503) 325-0310!

Professional Breath Control

Bad breath (halitosis) is not only embarrassing, but it may also be a sign of a medical problem. Its most common causes include dry mouth, consumption of pungent foods, insufficient tooth maintenance (such as infrequent brushing or flossing) & periodontal disease. If you suffer from chronic bad breath, we can help. We offer a full range of BreathRX® professional mouth care products to help take care of bad breath.

Purified Water

Dr. Leinassar understands your concern about water quality & the importance of keeping you & your family healthy. For this reason, Dr. Leinassar utilizes bottled water during his dental procedures. By using the purified bottled water in dental procedures, we are able to get rid of any substances that may compromise the health of our clients. The safety, health & care of our patients are our top priorities. This is just another way to show our patients that we care!

Our Offers

Free! No Cost for Most New & Returning Insured Patients!

*If you have insurance where a co-pay is not required, your exam, x-rays & cleaning will be at no cost to you. If your insurance requires a co-pay, you must pay a small out-of-pocket cost. If you don’t have dental insurance, please see cash prices above. Offers include all allowable benefits. Cash offers are for new patients only, except as noted. Cash, check or credit card only, or your insurance may cover. Cash offers include: Cleaning offer: cleaning & home-care kit, does not include periodontal (gum) therapy. Exam offer: exam, consultation, x-rays & an oral cancer screening. Children’s offer: exam, cleaning, x-rays & a fluoride treatment. For children up to age 13. Call for more details. The offer configuration as described & shown above is reserved strictly for use by chrisad clients in good standing. Copyright © 2017 chrisad, inc., marin co., ca all rights reserved. Copyright 2017 © Leinassar Dental Excellence

Contact Us

One Convenient Location for All of Your Dental Needs

We are located at the foot of 14th Street on the waterfront.

Our Address

1414 Marine Drive
Astoria, OR 97103

Call Us Now!
503-325-0310

Our Hours

Monday: 8am-6pm
Tuesday: 9am-6pm
Wednesday: 7am-5pm
Thursday: 7am-5pm
Friday: 8am-5pm
Saturday: By Appointment Only

Address: 1414 Marine Drive, Astoria, OR 97103     Phone: 503-325-0310

Request an Appointment

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.

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.