Meet Our Doctors

Dr. Luis Sarmiento approaches dentistry as both a clinician and an educator. He aims to understand what matters to each patient, explain the options clearly and plan care with the same consideration he would give a family member. For complex treatment, he works closely with other specialists to coordinate care around the patient's functional and esthetic needs.

His work has included crowns, bridges, veneers, dentures, partial dentures and a wide range of implant restorations, including implant-supported dentures and complex rehabilitations. He coordinates surgical implant placement with oral surgeons and periodontists.

After stepping away from private practice in 2022, Dr. Sarmiento returned part time in 2024. He served as an adjunct Assistant Clinical Professor at the University of New England College of Dental Medicine from 2021 through May 2026 and continues to take courses and review new materials and methods as his field develops.

Dr. Sarmiento is a member of the American Dental Association, Maine Dental Association, Greater Portland Dental Society, American College of Prosthodontists, International College of Dentists, Seattle Study Club and Casco Bay Study Club. His professional honors include recognition as a Lifetime Member of the American College of Prosthodontists and induction as a Fellow of the International College of Dentists (FICD) in 2025. Fellowship in the ICD is among the most prestigious distinctions in dentistry, recognizing outstanding professional achievement, leadership, service, and dedication to the profession.

Originally from the Philippines, Dr. Sarmiento enjoys travel, music, theater, films, food, cars and aviation. He earned his private pilot certification in 2011 and enjoys playing electronic keyboards for fun.

Dr. Thaleia Filokyprou is a prosthodontist dedicated to providing personalized, high-quality dental care. She believes that successful treatment begins with understanding her patients' concerns and expectations, ensuring they feel comfortable, informed, and confident throughout their care. Her passion lies in creating beautiful, natural-looking smiles that balance function and esthetics, with an emphasis on long-term oral health and quality of life.

Her clinical expertise includes esthetic and reconstructive dentistry, comprehensive full-mouth rehabilitation, and implant dentistry. She incorporates modern digital technologies into her practice to enhance treatment planning and achieve precise, predictable outcomes. Alongside clinical practice, she serves as a Clinical Assistant Professor of Prosthodontics at Tufts University School of Dental Medicine, where she is actively involved in predoctoral and postgraduate education and research.

Dr. Filokyprou is a member of the American Dental Association, American College of Prosthodontists, and International Team for Implantology. Outside of dentistry, she enjoys spending time with her family, as well as traveling, skiing, windsurfing, and other outdoor activities.

Dr. Paul Kuta believes patients should have the time and information they need to feel ready for treatment. He listens closely, explains their options, and develops practical plans around their individual goals. His work brings together technical precision and an artistic eye to restore function while creating a natural appearance. Committed to a comfortable patient experience, he takes a thoughtful, unhurried approach to deliver beautiful, enduring restorations.

He regularly takes continuing education courses in esthetic, implant and restorative dentistry. In treatment planning, he uses CBCT imaging to coordinate with other specialists and an intraoral scanner to support comfortable, efficient care.

Dr. Kuta is a Diplomate of the American Board of Prosthodontics and a Fellow of the American College of Prosthodontists. He is also a member of the American Dental Association, Maine Dental Association, and the American Academy of Implant Dentistry. His honors include induction into Omicron Kappa Upsilon, the American College of Prosthodontists Award, an Alumni Clinical Research Grant and the American Academy of Implant Dentistry Student Award.

Originally from New England, he moved to Maine in 2026. Outside the office, he enjoys reading, cooking, drawing, painting and gardening.

Dr Rianna Romanowski was born and raised in central New York state. She obtained her BS in Biochemistry/Cell Biology from Bucknell University in Pennsylvania. Dental school brought her to Boston, to Harvard School of Dental Medicine. After completing her DMD, she completed a General Practice Residency in her home city of Syracuse, then moved to California where she completed her Prosthodontics training at University of California San Francisco and Maxillofacial Prosthodontics training at University of California Los Angeles. She then spent over a decade working at the Miami VA Medical Center in Florida. She moved to Maine in 2021 and is full time at Prosthodontics Associates. Though she has enjoyed living around the country, she is delighted to have rooted herself in New England in its best state, Maine.

Her perspective on patient care focuses on listening. Aligning treatment plans with a patient's current concerns and personal circumstances is of utmost importance. She looks forward to collaborating with colleagues and patients to provide life-like, quality dentistry with long-term durability.

Dr. Vicki Saba graduated from the University of California, Berkeley with a degree in chemistry before moving to the Northeast to attend Boston University Goldman School of Dental Medicine. After graduating dental school, Dr. Saba worked both in a private practice and a community health center serving Allston, Waltham, and Boston. During that time, Dr. Saba held a Harvard faculty appointment supervising dental extern students.

After five years working in Massachusetts, Dr. Saba moved to Maine with her family, and she has been practicing general dentistry here since 2014. Dr. Saba listens, understands and engages her patients in a two-way conversation that facilitates a better dental experience and positive outcome. She encourages questions from patients prior to making a commitment to treatment.