LAPLATA—301.934.2771  |  OXON HILL—301.839.2500  |  FORT WASHINGTON—301.292.3318  |  UPPER MARLBORO—301.868.8838
About the Doctors
About Braces
Invisalign
Games for Kids
Home Site Map
Patient Login
Office Locations
About Our Offices
Refer a Friend
Life in Maryland
Invisalign® Certified Provider


Henry DiLorenzo, D.D.S./Orthodontist

Georgetown University 1957-1960. Georgetown School of Dentistry 1960-1964, D.D.S. Georgetown School of Dentistry 1972-1974, M.S. in orthodontics

Georgetown Dental School
  • President, Student Council
  • Omicron Kappa Upsilon-National Dental Honor Society
  • Alpha Sigma Nu-National Jesuit Honor Society
  • Psi Omega Academic Achievement Award
  • Mosby Scholarship Book Award
  • Pharmacology Award
Professional Associations & Positions
  • President, Georgetown Orthodontic Foundation
  • Southern Maryland Dental Association
    • President and Vice President, Board of Directors
    • Chairman of Ethics & Education Committee
    • Chairman of Orthodontic Dental Assisting Course
    • Received Outstanding Service Award
  • Patuxent Dental Society
  • Maryland State Society of Orthodontists
    • President and Secretary
  • Middle Atlantic Society of Orthodontists
    • Secretary
  • American Association of Orthodontists
    • Delegate
  • American College of Dentists
  • Maryland State Dental Association Trustee
  • Certified Invisalign Provider
Practicing in Prince George’s, and Charles counties since 1974.

I enjoy the challenges of Orthodontics and receive great pleasure in creating beautiful smiles for my patients. I have a wonderful staff that are enthusiastic, friendly and keep me young. Work is fun.

My involvement with the AAO has enabled me to enjoy and befriend my fellow orthodontists all over the country. Orthodontics is a fabulous profession.

In addition to my professional activities I have been President of a Kiwanis Club, President of Home & School Association, President of a Sportsmen’s Club, a Committee Chairman and merit badge counselor for the Boy Scouts, Chairman of school advisory board, interviewer for Georgetown University, on my parish council and a Eucharistic Minister.

I grew up in New Hyde Park, New York and married Marian Douglass in 1964, Marian was a librarian and is mother to our four children - Daniel, MD, PHD & MBA; Michael, Prosecutor for Dept. of Justice; Nicole, High School Guidance Counselor; and Chris who is a dentist.

In my spare time I enjoy fishing, boating, hunting and traveling.

Kenneth M. Hrechka, D.D.S./Orthodontist

University of Maryland, Baltimore, D.D.S.
University of Maryland Dental School, Certificate in Orthodontics, 1979-1981
Board Certified Orthodontist, March 1993

Professional Associations & Positions
  • American Association of Orthodontists
  • Middle Atlantic Society of Orthodontists/Current Delegate
  • Maryland State Society of Orthodontists/Past President
  • Certified Invisalign Provider
Practicing in southern Prince George’s County since July 1981

My practice philosophy is to provide the best orthodontic treatment possible. I want my patients to be pleased when their braces are removed.

Orthodontics is a constructive process. I enjoy examining a person’s malocclusion and planning, working, and creating something better than nature ever presented to us to begin with.

Native of Canada but a naturalized American since 1979.

Family members: Wife, Kathy; daughter Julia, 10; and son, Michael, 9.

I enjoy helping my children with their school work, cub-scout activities and helping my son improve at chess.

I am an avid exhibition rose gardener and am presently involved in the Arlington Rose Foundation and the Potomac Rose Society. I grow approximately 140 large rose plants and 85 mini and mini-flora plants. My greatest success has been with miniature and mini-flora varieties, although on several occasions I have often won the best climber, best hybrid tea spray and most fragrant hybrid tea. There is a great deal to learn to grow good roses. I guess it compares to orthodontics in that I try to manipulate “mother nature” with both disciplines.

Thomas Dowling, D.D.S./Orthodontist

Completed DDS Degree at University of Maryland in Baltimore. Completed MS Degree at Georgetown University of Washington D.C.

Complete General Practice Residency at Womack Army Hospital, Ft. Bragg, North Carolina 1979-1982. Orthodontic Residency at Georgetown University, Washington, D.C. 1982-1984

Currently a member of: American Association of Orthodontists, Maryland State Dental Society and Southern Maryland Dental Society

Currently serving as Dental Officer in the Maryland Army National Guard

Served as Dental Officer in U.S. Army Reserves 1979-2004

Have been practicing in Montgomery and Price George’s County since 1984, specializing in orthodontics.

My practice philosophy is to aid my patients to the best of my abilities in obtaining a beautiful smile. It is important to me that patients be treated well and shown kindness during the course of their treatment.

I enjoy creating handsome smiles for the majority of my patients who are adolescents.

Native of Wheaton, Maryland

Lived in Olney, Maryland since 1985

Family members: Wife, Sandra; Daughter, Lauren; and sons, Matthew, Christopher, Thomas, Stephen and William.

Non-work activities: I enjoy sports of all kinds and I try, with great difficulty, to keep up with all of my son’s sports teams.

Back to Top