Comfort Care · Est. 1993Comfort Care · est. 1993
Family dentistry and complex orofacial pain care, in the same office, with the same team, since 1993.
Scroll to see what we do
Dental Practice
ComfortCareDentalMedical Practice
BrienHsu,DDS, MS & AssociatesWhy patients stay
01 / 03Three decades on Kenyon Way. Dr. Brien Hsu earned the nickname his second year in practice, and a generation of Rancho Cucamonga families has stayed with him since. The office grew around them, never the other way around.
The story so farHow we work
02 / 03We choose the least invasive treatment that works. Splint therapy before surgery for TMJ. Composite before crowns when the tooth allows it. Watching a small lesion before biopsying it. We don't intervene unless intervention is the right call — and when it is, we do the work well, with the equipment to back it up.
See our technologyWho we serve
03 / 03Long tenure means we remember your case, your kids, and how your bite has changed since 2002. We treat the children of the people we first treated thirty years ago — alongside a board-certified oral surgeon, a board-certified endodontist, and two family dentists who know your name. Continuity by design, not by accident.
Meet the teamKeep scrolling
Services
Family · Restorative · Cosmetic
Cleanings, fillings, crowns and bridges, veneers, whitening, root canals, implants, periodontal care — the everyday dentistry that keeps a family healthy, plus the cosmetic work that makes a smile worth showing.
Enter dental practiceOrofacial Pain & Oral Medicine
TMJ, sleep apnea, orofacial pain, oral pathology, biopsies, oral cancer screening. The medical side of the practice, led by Dr. Hsu — USC Master's in Orofacial Pain, Oral Medicine, and Sleep Disorders.
Enter medical practiceThe team
Dr. Brien Hsu has been seeing patients in Rancho Cucamonga since 1993. Four board-certified specialists practice alongside him today, in oral surgery, endodontics, periodontal care, and orofacial pain. Long tenure means we remember your case, your kids, and how your bite has changed since 2002.
DDS, MS
Dr. Brien Hsu
DMD
Dr. Angela Huang
DMD
Dr. Amandeep Singh
DMD
Dr. Rachel Lim
DDS
Dr. Robert Sharobiem
DDS, MS
Dr. Serena Hsu
iCAT FLX scanner since 2014. Diagnostic detail most general practices outsource — captured in-house, viewable in your consult.
Digital impressions instead of trays. Upgraded to the Trios 5 in 2024 — wirelessly connected across every operatory.
Surgical-grade magnification for precision restorative and endodontic work. Rare outside of specialist offices.
In patients’ words
“Dr. Brien Hsu has been my dentist for many years. I am by no means a fan of going to the dentist, but I can honestly say my experiences with Dr. Hsu have always been pleasant. I recently moved from California to Texas and a 15-year-old root canal started giving me trouble. A Texas dentist sent me to two implant specialists who recommended an expensive extraction and implant. I asked Dr. Hsu for a 2nd opinion. After he reviewed my x-rays, he told me he could probably save the tooth. I flew back to Rancho Cucamonga, had what I'd call the most painless root canal procedure I've ever had, and saved my tooth — plus a lot of money. Dr. Hsu has always been very honest with me and his dental work has always been painless.”
“I travel to this dentist for one reason. I believe Dr. Hsu is the best dentist period. He has very gentle hands and pays a lot of attention to making sure we're always comfortable. I don't know how he does it, but his shots never hurt — he doesn't even use that numbing cream before giving me an injection, and I still never feel it. I've even seen him work on my children — they think he is some kind of magician. When we visit Dr. Hsu and his staff, we always feel warm and welcome.”
“I've been a patient of Dr. Hsu for years and can honestly say he is the most pain-free, efficient and knowledgeable dentist I've ever had. Before Comfort Care I'd seen a multitude of dentists and none of the experiences could be called pleasant — I'd usually walk away with an aching jaw and nightmares of needles. I'd built up an intense fear of going to the dentist. When Dr. Hsu numbed my mouth, I didn't even feel the needle going in. From there, all the drilling and filling was completely painless. His work is solid (never had a filling fall out), and he takes the time to update me as he's working.”
Ready when you are
Tell us a little about what you need and a preferred time. We'll call back the same business day.