OSA treats patients for a wide range of conditions in both office and hospital settings.  These include dentoalveolar surgery (including wisdom teeth), dental and maxillofacial implants, pediatric oral surgery, orthognathic and reconstructive surgery, maxillofacial tumors, cleft lip and palate, major and minor bone grafting, snoring and sleep apnea, temporomandibular joint problems, and maxillofacial trauma.


Wisdom Teeth

Wisdom teeth are the last teeth to erupt within the mouth. When they align properly, and gum tissue is healthy, wisdom teeth do not have to be removed. Unfortunately, this does not generally happen. The extraction of wisdom teeth is necessary when they are prevented from properly erupting within the mouth. They may grow sideways, partially emerge from the gum, and even remain trapped beneath the gum and bone. Impacted teeth can take many positions in the bone as they attempt to find a pathway that will allow them to erupt successfully.


Your teeth affect your whole body. When they’re healthy, you’re healthier too. A missing tooth can affect your bite, speech and eating choices. As you rely more on your remaining teeth, you increase the chance they will wear out prematurely, or be damaged or lost. You may also experience headaches and/or jaw pain.

Bone Grafting

Bone grafting can repair implant sites with inadequate bone structure due to previous extractions, gum disease, or injuries. The bone is either obtained from a tissue bank or taken from your own available bone stock. Sinus bone grafts are also performed to replace bone in the posterior upper jaw. In addition, special membranes may be utilized that dissolve under the gum to protect the bone graft, as well as encourage bone regeneration. This is called guided bone regeneration, or guided tissue regeneration.


Our surgeons offer a full range of anesthetic options to fit your needs. Whether you need local anesthesia, intravenous sedation, or general anesthesia all our doctors place your safety and comfort as their highest priority. Practicing in a modern and safe environment with the anesthesia team model, OSA has set the standard for our community.

Major Jaw Surgery

Our surgeons are equipped with modern technologies and techniques to complete major jaw surgeries including Orthognatic Surgery and Cleft Lip or Palate. Orthognatic Surgery improves facial appearance and ensures teeth meet correctly and function properly. Cleft Lip and Palate needs can be addressed multiple times as a child grows. If you are a candidate, our surgeons will work closely with your dentist and orthodontist during your treatment.

Dental Surgery

From Dental Extractions to Impacted Canines, our surgeons use a variety of methods to perform essential procedures for your teeth. If a tooth is stuck, trapped, decaying, cracked, or showing periodontal disease, your dentist or orthodontist will refer you for Dental Surgery. These procedures maintain the longterm health of impacted and all surrounding teeth in your mouth.


“I work in the health care industry and I’m beyond impressed with how well your office runs.  The layout, process and staff are highly professional. Kudos!”

“I’ve had extractions at this place three times. From the front-desk people to the dental assistants and the dental surgeons, they are all professional, friendly, punctual, and respectful. Highly recommend.”

Amy B.

“I love the team you have assembled. I love the customer care and the expertise of each team member. You make oral surgery a five-star experience. I left with a smile!”

Alan C.

“Drs. Moyer, Zajkowski, MacCarthy or Jacobsen, you have exhibited nothing but patience and professionalism.”

“I wanted to express my gratitude for the services that I received from your office. During my consultation, Dr. Zajkowski showed genuine concern for my health and financial situation, which I greatly appreciated.  He also went out of his way to set up a surgery in such short notice, when time was of the essence.”

“During my surgery, Dr. MacCarthy and his assistants did a wonderful job and they were attentive to my needs during the healing process.”

“None, the team is exemplary from the front desk, to the assistants to Dr. Jacobsen – High marks across the board for all! The care you provide is top notch! I will highly recommend you to anyone who needs your services!”

“I have to be honest, before the surgery I was very nervous. My recovery was quick and easy! When I woke up I was so glad the surgery was finished. By the end of the day my mouth felt as good as new!”

“Efficient, kind, caring and understanding. As dental work goes, I can’t imagine it getting better than this. I’m a pretty big scaredy cat and these folks are very kind and conscientious. As good as I could imagine it, given what we were doing. Thanks for your excellent work and for treating me like a human being.”

Faith Y.

“Very nice and clean facility. Friendly and helpful staff and Dr. was awesome. My extraction went fast and painless.”

Tyrone M.

“Completely in awe of the professionalism and friendliness of the entire staff. These folks have it down. The surgeons are top-notch and would recommend to anyone looking for an implant.”

Michael S.

Oral & Maxillofacial Surgery Associates

20 Long Creek Drive
South Portland, Maine 04106

Monday – Thursday
8:00 am – 5:00 pm
8:00 am – 3:00 pm

T: 207-772-4063
F: 207-772-8641
Billing: 207-772-3027
[email protected]