Dentist Bios

Kristin Horman, DDS

Owner

“I enjoy the relationships with my patients—getting to know them more personally,” says Dr. Horman, whose practice focuses on orthodontics. “I also enjoy the positive outcome and well-being that a patient experiences after treatment. Particularly with orthodontics, I enjoy seeing the change that occurs as the problems begin to resolve and the patient gets to experience better function and a beautiful smile.”

Dr. Horman strongly believes in a patient’s right to choose what they feel is the best treatment for their particular situation. “In order for them to make good decisions, they need to be educated about their options,” she says. “I do my very best to communicate to them the information they need to make the right decision. Ultimately it is their smile, and they should have the opportunity to decide what is best for them.

“Nothing gives me more pleasure than when a patient is happy with their teeth and is proud to flash a big smile! I am also very aware that a great deal of anxiety is associated with visiting the dentist. I truly care, and I strive to make each patient’s visit as pleasant and pain-free as I possibly can.”

In her spare time, Dr. Horman enjoys spending time with family and friends, traveling, and cooking. She supports charitable organizations in general but strongly believes in providing support to the charities and organizations that service the local community.

  • DDS: University of Maryland School of Dentistry, Baltimore, MD
  • BS: Biology, Andrews University, Berrien Springs, MI
  • Member: American Dental Association, Maryland State Dental Association, Frederick County Dental Society

Harold E. Butler, DDS, MHA

“I went into dentistry because I enjoy the combination of art and science, the variety and challenge, and making people happy,” says Dr. Butler, oral surgeon. “I am casual, straightforward, and open with patients. I try to give them enough information to make good decisions about their dental health. Most of all, I care about what is best for the patient. It keeps my head out of the clouds and my feet on the ground.”

In his spare time, Dr. Butler enjoys reading about history and religion, classical music, and supporting Christian endeavors in the community.

  • Board-Certified: Oral and Maxillofacial Surgery, State of Maryland
  • Fellow: American Association of Oral and Maxillofacial Surgeons, American College of Oral and Maxillofacial Surgeons
  • Fellowship-Trained: University of Maryland, Baltimore, MD
  • Assistant Professor: Johns Hopkins University Hospital, Head and Neck Surgery Department, 1988–2008
  • Residency: University of Maryland Medical Center, Baltimore, MD
  • Internship: University of Maryland Medical Center, Baltimore, MD
  • DDS: University of Maryland School of Dentistry, Baltimore, MD
  • MHA: Master of Health Administration, Loma Linda University, Loma Linda, CA
  • BA: Business Administration, Washington Adventist University, Takoma Park, MD
  • Member: American College of Oral and Maxillofacial Surgeons, American Dental Association, Maryland State Dental Association

Omar G. DeOliveira, DDS

“I chose dentistry because of my interest in the health care field and the opportunity to create a good impact in patients’ lives through our work and relationship with them,” says Dr. DeOliveira. “The results of our work include giving patients a beautiful smile, helping them when they are in pain, rehabilitating their chewing function, and creating a lasting bond with them, which is important to me.”

“I’m laid-back, informal. I like to joke with the patients and staff to create a happy atmosphere. I like to give quality care to patients in a cost-efficient way. My goal is always a happy dental experience, painless and with spiritual encouragement as well. I’m able to perform a wide variety of procedures, including fillings, root canals in molars, extractions, implants, dentures, and more. I don’t need to refer patients to specialists, and I’m familiar with all the dental issues that the patient might have.”

In his free time, Dr. DeOliveira likes to help in church outreach with information about oral health.

  • DDS: Loma Linda University School of Dentistry, Loma Linda, CA
  • Member: American Dental Association, Maryland State Dental Association

Robert P. Renck, DDS

“Dentistry is enjoyable to me because of the variety of procedures and the challenge of problem-solving,” says Dr. Renck. “The immediate feedback after fixing a patient’s dental problem is very rewarding. I endeavor to make dental visits a low-stress experience with quick, quality treatment and minimal discomfort.”

“As a practitioner, I am detail-oriented in the planning and treatment of each case. My approach to dentistry is conservative—when working on a tooth, I strive to remove as little tooth structure as possible. I love how I can change a person’s smile and give them new confidence simply by working on their front teeth. Sometimes by fixing a single broken tooth, I can improve a person’s smile.”

Aside from work, Dr. Renck enjoys skiing, cycling, and spending time with his family.

  • Board-Certified: Northeast Regional Board of Dental Examiners, Western Regional Examining Board, National Board Dental Examinations (Parts I and II)
  • DDS: Loma Linda University School of Dentistry, Loma Linda, CA
  • BS: Walla Walla University, Walla Walla, WA
  • Member: American Academy of Cosmetic Dentistry, American Dental Association, National Association of Seventh-Day Adventist Dentists, Maryland State Dental Association, Washington County Dental Society

Carl S. Appleton, DDS

“It brings me satisfaction to know that I work in the field that treats the number one infectious disease in the U.S.—the disease that causes cavities,” says Dr. Appleton. “Accomplishing procedures successfully brings me daily satisfaction in my work.”

“My philosophy of care is to give each of my patients my undivided attention, listen to their concerns, and provide them with a plan that is customized for them to meet their individual goals. I take pride in providing my patients with comfort, security, and in some cases hope. Of course, I’m proud to give them a good-looking smile.”

Dr. Appleton enjoys being involved with his family, church, and community. In his spare time, he bikes, plays golf, and watches sports. He has also taught oral health to the Frederick County public schools for the past four years, sharing that “educating elementary students is a great joy of mine.”

  • DDS: Loma Linda University School of Dentistry, Loma Linda, CA
  • Member: Academy of General Dentistry, American Dental Association, Omicron Kappa Upsilon

Niraj P. Patel, DDS

I find dentistry to be a very challenging and rewarding profession,” says Dr. Patel. “Growing up, I witnessed how poor oral health affected my grandmother, and I wanted to help prevent others from enduring the same hardships. I enjoy being able to make significant improvements in people’s lives by restoring their self-confidence, self-image, and ability to eat and speak properly.”

“I’m passionate about my work and easy to talk to. I try to learn about my patients on a more personal level to make them feel more comfortable. My concerns are always tailored toward my patients. I want patients to understand exactly what is going on in their mouth and to be actively involved in their treatment plans so I am able to meet their needs. I am committed to educating my patients on their oral health conditions, dental procedures, and oral hygiene practices. I truly try to earn patients’ respect, rather than expect it.”

“Being born and raised in Maryland, I naturally feel a strong tie to my local community. I always strive to give back and therefore provide free screenings and treatment at community events, helping those in need with their oral care and treatment.”

Dr. Patel enjoys playing basketball and completing home improvement projects. He loves spending time with his family. “One of my newer passions is traveling,” he says. “I hope to be able to see the world and the beauty and diversity it has to offer.”

  • DDS: University of Maryland School of Dentistry, Baltimore, MD
  • BS: University of Maryland, Baltimore County, MD
  • Member: American Dental Association, Maryland State Dental Association, Academy of General Dentistry

Eric Cho, DDS

“As a dental provider, I feel that communication is vital to a successful doctor-patient relationship,” says Dr. Cho. “I realized very early on that patients really appreciated it when I took the time to explain why certain problems arose and the various ways we could try to fix them. In addition, I find it very beneficial to try to put myself in my patients’ shoes and always consider, Is this a treatment I would choose for myself?”

“I consider myself to be conservative when proposing treatment and continually strive to make appointments quicker and more painless. I am fun-loving and a positive thinker.”

In his spare time, Dr. Cho likes to try all types of food, play golf, and snowboard.

  • General Practice Residency: Philadelphia VA Medical Center
  • DDS: University of Maryland School of Dentistry, Baltimore, MD
  • BS: University of Maryland, College Park, MD
  • Member: American Dental Association, Chinese American Dental Association, Maryland State Dental Association, Psi Omega

Ryan Williams, DDS

“I chose dentistry because it combines several areas that I enjoy,” says Dr. Williams. “I like doing intricate work with my hands. I enjoy spending time with patients, discovering their priorities for care, educating them on the treatment options that are available to reach their goals, and then following through with the treatment plan. My goal is to treat every patient with gentleness and respect—just as I would want to be treated.”

In his free time, Dr. Williams enjoys hiking with his wife, Kristi, and dog, Stanley. He also enjoys woodworking as well as flying radio-controlled and full-sized aircraft.

  • DDS: Loma Linda University School of Dentistry, Loma Linda, CA
  • MA: Master of Arts in Bioethics, Loma Linda University, Loma Linda, CA
  • BS: Biology, Andrews University, Berrien Springs, MI
  • Member: American Dental Association, Omicron Kappa Upsilon, American Society for Dental Ethics
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