Dr. David Rosania, MD, MS, Periodontist

Dr. David Rosania, MD, MS

Periodontist | Periodontics

185 Cottage St Ste 2 Portsmouth NH, 03801-4164


I am a Board certified Periodontist and was the first surgeon in our region to place a modern-era dental implant over 25 years ago, and I have placed several thousand since then. I have also performed well over 20,000 periodontal surgical procedures. I am excited to combine my experience with the state-of-the-art training my daughter Amy has received at the University of Pennsylvania and the University of Connecticut, two of the most highly ranked dental programs in the nation. I am committed to treating my patients with dignity and with providing a personalized experience as free of stress as possible. There is a good chance that you know one of my patients, and if you ask around I am confident that they will confirm this.

I received my education at Tufts University (B.S. cum laude in Biology and Psychology) and the University of Connecticut (D.M.D. and Specialty Certificate in Periodontics), most recently earning a M.S. in 2008 (again at Tufts University). I am a past President of the Rockingham County Dental Society. I founded a 20-year-long dental study club and authored The Perio Perspective, a newsletter for local dentists and hygienists. For the past seven years I have indulged my love for teaching at The Governors Academy, where I taught Biology, Physics, Chemistry, Anatomy and Physiology, and Environmental Science, while continuing to practice Periodontics and Implant Therapy. I continue to cherish my three grown children and my wife Pam. My hobbies include triathlon, electric guitar, studying science, psychology and philosophy, and trying to keep up with Amy running and skiing.

Education and Training

Tufts University BS 1975

University of Connecticut DMD 1979

University of Connecticut Periodontology Certificate 1981

Board Certification

American Board of Periodontology

Provider Details


Areas of expertise and specialization

Dental ImplantsGingival (gum) GraftingBone GraftingPeriodontal SurgeryPeriodontal Scaling


  • Best of Portsmouth - Periodont Portsmouth Business Awards 
  • Top Dentists in New Hampshire New Hampshire Magazine 

Professional Memberships

  • American Dental Association  
  • American Academy of Periodontology  
  • International Team for Implantology  
  • American Board of Periodontology  

Charities and Philanthropic Endeavors

  • Remote Area Medical

Dr. David Rosania, MD, MS's Practice location

185 Cottage St Ste 2 -
Portsmouth, NH 03801-4164
Get Direction
New patients: 603-294-0110

Request An Appointment With Dr. David Rosania, MD, MS | Periodontist | Periodontics

Please note that this request is not considered final until you receive email notification confirming the details.

In the event the doctor is not yet registered with FindaTopDoc, we will contact the office on your behalf in an effort to secure your appointment.

Dr. David Rosania, MD, MS's reviews

Write Review

Recommended Articles

  • How Effective Are Anti-Aging Products?

    It is common for people, as they get older, to desire to maintain skin that looks youthful and ageless. Many studies have shown that the best skin treatment is maintaining a healthy diet and maintaining protection from the sun. For individuals between the ages of 20-years-old and 30-years-old, the...

  • Medical History May Be Able to Predict Parkinson's Disease

    A study led by Susan Searles Nielsen, PhD, MS, assistant professor of neurology at the Washington University located in St. Louis, Missouri, looked into a new method that utilizes past medical records in order to predict whether or not a patient will develop Parkinson’s disease.  This approach...

  • The Benefits of Grapefruit, the "Fruit of Paradise"

    Grapefruit is a very tangy, citrus fruit that looks just like an orange but is not as sweet. Grapefruit was named for the way it grows (in bunches, just like grapes). The fruit has a fleshy interior that is often red, white, or pink in color.Grapefruit is a new radial fruit that developed naturally...

  • What Is Plexus Slim: Does It Really Work?

    What is Plexus Slim?While there are many weight loss supplements on the market, Plexus Slim is a product that has been getting rave reviews. For this reason, it is important that we take a closer look at it. There have been little or no studies conducted on this particular product as a whole and...

  • Water Therapy for Rheumatoid Arthritis

    Anyone with rheumatoid arthritis knows what it is like to have pain that can only be managed, not defeated. Painkiller drugs only go so far in dealing with the pain, and can have unfortunate side effects. Plus, they are not cheap. Tylenol does not cut it.Ever since humanity has felt pain, there have...

  • The Link Between Rheumatoid Arthritis and Gum Disease

    Many diseases interact with rheumatoid arthritis, causing concern for patients and their families. Common diseases that have high comorbidity rates with rheumatoid arthritis are other autoimmune disorders. Lupus is an example of a disorder that might be correlated. Other diseases frequently...

Nearby Providers

Nearest Hospitals



185 Cottage St, Portsmouth, NH 03801, USA
Head north on US-1 BYP N
0.2 mi
At the traffic circle, take the 3rd exit onto the I-95/Maine/Massachusetts ramp
0.3 mi
Keep right at the fork, follow signs for I-95 N and merge onto I-95 NEntering Maine
8.4 mi
Take exit 7 toward ME-91/U.S. 1/The Yorks/Ogunquit
0.4 mi
Slight right onto Spur Rd (signs for York/US-1/ME-91)
0.3 mi
Turn right at the 1st cross street onto US-1 S
0.3 mi
Turn left onto York St
0.9 mi
Turn right onto Hospital Dr
56 ft
15 Hospital Dr, York, ME 03909, USA



185 Cottage St, Portsmouth, NH 03801, USA
Head north on US-1 BYP N
0.2 mi
At the traffic circle, take the 3rd exit onto the I-95/Maine/Massachusetts ramp
0.3 mi
Keep left at the fork, follow signs for I-95 S/Hampton NH/Massachusetts and merge onto I-95 SToll road
8.1 mi
Take exit 2 for State Route 101 WToll road
0.9 mi
Merge onto NH-101 W
1.0 mi
Take exit 12 for NH-111 toward Exeter/North Hampton
0.2 mi
Turn left onto NH-111 W/Exeter Rd (signs for Hampton Falls)Continue to follow NH-111 W
2.5 mi
Turn right onto Buzell Ave
266 ft
Turn left at the 1st cross street onto Auburn St
413 ft
Turn right onto Magnolia Ln
0.1 mi
Turn right at Highland St
262 ft
Turn right
135 ft
5 Alumni Dr, Exeter, NH 03833, USA



185 Cottage St, Portsmouth, NH 03801, USA
Head north on US-1 BYP N
0.2 mi
At the traffic circle, take the 4th exit onto US-1 BYP S
0.5 mi
Turn right onto Borthwick Ave
0.6 mi
Turn right
148 ft
Turn left
256 ft
Turn rightDestination will be on the right
292 ft
333 Borthwick Ave, Portsmouth, NH 03801, USA