VB
Dr. Vuong Bui, DDS
General Dentist
Founding dentist · practising at Lone Hill Dental for 15+ years
Dr. Bui founded Lone Hill Dental and has cared for families across Glendora, Covina and San Dimas for more than fifteen years. His day-to-day work spans routine preventive care, single-visit white fillings, crown and bridge, veneers and full-mouth rehabilitation, and he is deliberately conservative, treating only what genuinely needs treating and monitoring the rest. Patients most often mention two things: how gently he works, and how thoroughly he explains a diagnosis before any decision is made.
Clinical focus
- Cosmetic dentistry
- Crown & bridge
- Preventive care
- Full-mouth rehabilitation
Special interests
Minimally invasive, tooth-preserving dentistry and treating anxious patients who have been away from the chair for years.
BT
Dr. Brian Tadang, DDS
General Dentist
General dentistry · restorative and family care
Dr. Tadang looks after the everyday backbone of the practice: examinations, hygiene planning, fillings, crowns, root canal therapy and the restorative work that keeps a compromised tooth in service for years longer. He treats children and adults in the same family, often on the same morning, and is known for walking patients through the reasoning behind a recommendation, what happens if we treat it now, what happens if we wait, so the choice stays with the patient.
Clinical focus
- Family dentistry
- Restorative care
- Root canal therapy
- Emergency appointments
Special interests
Long-term restorative planning and helping first-time or nervous young patients build a calm routine early.
KL
Dr. Kimberlin Low
Orthodontist
Specialist orthodontist · in-house braces and Invisalign
Dr. Low is our specialist orthodontist, handling every alignment case in-house rather than referring it out. She works with fixed metal and ceramic braces, clear aligners and interceptive treatment for growing children, mapping the full sequence of tooth movement before the first bracket is placed. That planning is why appointments stay short and predictable, and why most patients know their finish date from the outset.
Clinical focus
- Invisalign
- Braces
- Bite correction
- Early interceptive orthodontics
Special interests
Adult aligner cases where discretion matters, and relapse cases from treatment done years earlier elsewhere.
RG
Dr. Raffie Garabedian, DDS
Periodontist
Specialist periodontist · surgical and implant care
Dr. Garabedian is our specialist in the gums and bone that hold a smile together. His work covers gum disease treatment, deep cleaning and maintenance, gum recession and grafting, and the surgical placement of dental implants, including planning the site so the final crown sits and functions correctly. He is methodical by nature, and patients referred to him for surgery usually leave surprised at how straightforward the recovery turned out to be.
Clinical focus
- Dental implants
- Gum disease treatment
- Gum grafting
- Oral surgery
Special interests
Implant site planning and rescuing teeth that other practices have recommended for extraction.
EJ
Erika Jimenez
Dental Assistant
Registered dental assistant · chairside across general and cosmetic care
Erika assists chairside across general, cosmetic and surgical appointments, taking radiographs, preparing impressions and scans, and keeping the operatory a step ahead of the dentist. She is also the person most likely to notice a patient tensing up and quietly adjust the pace, and she talks people through aftercare before they leave rather than handing over a leaflet.
Clinical focus
- Chairside assisting
- Radiographs
- Digital scans
- Patient comfort
Special interests
Supporting anxious and first-visit patients, and clear post-treatment aftercare.
CH
Coco Hernandez
Dental Assistant
Dental assistant · sterilisation lead and chairside support
Coco supports the doctors chairside and oversees instrument sterilisation and infection control, setting every tray with a perfectionist's eye. She works closely on restorative and orthodontic appointments, prepares materials so the dentist never has to break concentration, and keeps track of the small details patients mention in passing: the sensitive side, the tight schedule, the tooth that has been niggling.
Clinical focus
- Sterilisation & infection control
- Restorative assisting
- Orthodontic assisting
Special interests
Clinical safety standards and making longer restorative appointments feel shorter.
AR
Amber Romo
Receptionist
Front office · scheduling, insurance and treatment coordination
Amber is the voice on the phone and the steady presence at the front desk. She handles scheduling, verifies insurance benefits before you arrive, and puts treatment costs in writing so there are no surprises at checkout. If you are juggling several family members across one visit or working out what a plan actually covers, she is the person who makes it fit.
Clinical focus
- Scheduling
- Insurance verification
- Treatment estimates
- New patient intake
Special interests
Untangling insurance benefits and getting emergencies seen the same day.
