Our Team

About Our Office

Highlands Ranch Dental Group is located in Highlands Ranch, Colorado. Our team of dental experts includes regular and cosmetic dentists, endodontists, orthodontists, periodontists, and oral surgeons.

Dr. Isael Aleman – General & Cosmetic Dentist

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Isael AlemanDr. Isael Aleman was born in San Jose, California and grew up in Gilbert, Arizona. While studying biology at Arizona State University, he volunteered at CASS dental clinic for the homeless, where he learned to be a dental assistant. This lead to him pursuing his DDS from the University of Colorado School of Dental Medicine. His desire to continue education beyond school has allowed him to acquire additional skillsets in dental implants as well as in sedation dentistry. During his free time, he enjoys discovering new music, going to the gym, and snowboarding during the winter months.

“I provide skilled and compassionate care to my patients, to allow for the best dental experience possible. Patient trust is my number one goal. I take pride in improving my patients’ oral health while educating them about the link to their systemic health.”

Professional Associations

American Dental Association, Academy of General Dentistry, Colorado Dental Association, Metro Denver Dental Society

Volunteer Experience

Give Kids A Smile, Colorado Mission of Mercy, Guatemala Smiles Project, Central Arizona Shelter Services Dental Clinic


Certified in nitrous oxide administration and Oral Conscious Sedation (Sleep Dentistry)

Dr. Pearl Lai – Periodontist

Dr. Pearl LaiDr. Pearl Lai is a Colorado native. She attended the University of Colorado at Colorado Springs where she received a bachelor’s degree in biology and chemistry. It was there she discovered her passion for dentistry and subsequently went on to the University of Colorado School of Dental Medicine. Prior to her periodontics residency at Mayo Clinic, she practiced as a dentist in the Denver-metro area. At Mayo Clinic, Dr. Lai gained extensive experience in implant placement, osseous and soft tissue grafting.

As a practicing periodontist, Pearl enjoys her relationships with her patients and her colleagues as much as the care she provides. In her spare time she enjoys reading, hiking, and snowboarding.

“I look forward to meeting new people and fostering long term relationships. I find that dentistry and periodontics provides the perfect opportunity. It is very gratifying when I can help a person to achieve their optimum health.”

Learn more about our periodontal services.

Dr. Laurie Lazarou– Endodontist

Dr. Laurie LazarouShe’s been practicing Endodontics since 2000. After earning her undergraduate degree at Boston University, Dr. Lazarou attended the Harvard School of Dental Medicine, where she graduated with honors at the top of her class. She then completed a General Practice Residency at Brigham and Women’s Hospital in Boston, MA. Dr. Lazarou was trained in micro-surgical Endodontic at the University of Southern California School of Dentistry. She is currently an Associate Professor at the USC School of Dentistry, Endodontics Department.

Dr. Lazarou is a member of the American Association of Endodontists, the American Dental Association, the Santa Barbara/Ventura County Dental Society, the Southern California Academy of Endodontists and the Conejo Valley Academy of Dentistry.

Learn more about our endodontic services.

Dr. Trent Listello – Oral Surgeon

Dr. Trent ListelloDr. Listello was born and raised in central Washington State. He attended Eastern Washington University where he graduated Magna Cum Laude and earned his Bachelor of Science in Biology with a pre-dental option. He received his dental degree from Loma Linda University School of Dentistry and graduated Magna Cum Laude in May of 2000. Following graduation from dental school, he completed a one year Advanced Education in General Dentistry residency at the United States Air Force Academy in Colorado.

From 2001-2005, Dr. Listello served as a general dentist at Eielson AFB, Alaska, and Travis AFB in California. In the summer of 2005, he began an Air Force sponsored Oral & Maxillofacial surgery residency at Travis AFB, California, where he was trained in multiple surgical trainings including dental extractions, dental implants, orthognathic surgery, ENT, plastic surgery, general surgery, and trauma services. Dr. Listello graduated in 2009 with a certificate in Oral and Maxillofacial Surgery. Since that time, he has served as an Oral and Maxillofacial surgeon at RAF Lakenheath, United Kingdom, and is currently acting as Chief of Oral Surgery at the US Air Force Academy.