Periodontists & Dental Implant Specialists in Orange, CA
Gentle, honest care from Harvard- and UCSF-trained specialists, serving Orange County.
Harvard & UCSF
Trained specialists
Periodontal Specialists
Gums, bone & implants
Sedation Options
For anxious patients
5.0 ★ on Google
30+ real patient reviews
Specialists in Gums, Bone & Dental Implants
Orange Periodontics and Dental Implantology is a specialty practice in Orange, CA. We treat gum disease, receding gums, bone loss, and missing teeth, and we place and repair dental implants.
If your gums bleed, feel tender, or seem to be pulling back, or if you are missing one or more teeth, you are in the right place. We take time to explain all of your options, so you can choose the treatment that is right for you, and we recommend only the treatment you truly need.
Meet Your Specialists
Both of our doctors are Specialists in Periodontics. Each completed an advanced, multi-year surgical residency in periodontics and dental implants at UCSF.
Cliff Lee, DMD, MS
Dr. Cliff Lee earned his dental degree at Harvard School of Dental Medicine and completed his periodontics and implant residency at UCSF. He specializes in bone and tissue regeneration, has published more than 20 peer-reviewed articles, and continues a research role at Harvard focused on dental implants.
Sepi Lee, DDS, MS
A Southern California native, Dr. Sepi Lee studied at UCLA and earned her dental degree, specialty residency, and master’s degree at UCSF. She believes care is built on trust and compassion, and she builds lasting partnerships with her patients and their dentists.
Our Services
As specialists, we care for everything from routine gum health to the most complex implant and regeneration cases.
Dental Implants
Missing one tooth, several, or wearing a loose denture? Implants give you permanent, natural-looking teeth, from a single crown to full-arch All-on-X, often with same-day temporary teeth.
Periodontal Disease Treatment
Bleeding gums, bad breath, or loose teeth can be signs of gum disease. From deep cleanings to regenerative surgery, we treat every stage with one goal: saving your natural teeth.
Gum Grafting
Receding gums can expose roots and cause sensitivity. We restore your gum line with gentle microsurgery, and we offer honest second opinions, because not every recession needs surgery.
Bone Grafting
Bone can shrink after tooth loss or gum disease. A bone graft acts as a scaffold that your body replaces with its own bone, building a strong foundation for implants and teeth.
Peri-Implantitis
Bleeding, swelling, or bone loss around an implant? We remove the infection and rebuild the supporting bone and gums to help save your implant, especially when it is caught early.
Sinus Lifts
Not enough bone for upper back implants? A sinus lift adds bone beneath the sinus, often through the same small opening as your implant, and it does not affect your breathing.
Tooth Extractions
When a tooth cannot be saved, we remove it gently to protect the surrounding bone, often placing a bone graft and implant in the same visit to save you extra procedures.
Crown Lengthening
Have a broken tooth that needs a crown, or a gummy smile that bothers you? We precisely reshape the gum and bone so your tooth can be restored and your smile looks balanced.
Honest Advice. Your Decision.
There is rarely just one right way to treat a tooth. We explain every reasonable option and help you choose the one that fits your health, your goals, and your budget.
- Every option on the table. Saving a tooth, replacing it with an implant, or simply monitoring it. We walk you through the pros, cons, cost, and long-term predictability of each.
- Our honest recommendation. We will tell you what we would choose and why. Then the decision is yours.
- Never more than you need. Many patients who come to us for a second opinion learn they need less treatment than they were told, or none at all.
- Fewer procedures when possible. When it is safe, we combine steps, such as extraction, bone graft, and implant in a single visit.
- A team approach. We plan your care together with you and your general dentist.
Advanced Technology & Your Comfort
We combine modern technology with a gentle approach, so treatment is precise and as comfortable as possible.
- 3D CBCT imaging: a detailed 3D view of your bone, sinus, and nerves before any surgery.
- Digital scanning and digital X-rays: no messy impressions, and lower radiation.
- Digital surgical guides: implants placed exactly where your new tooth is planned.
- Microsurgery under 5.5x magnification: smaller incisions and gentler healing.
- Sedation options: oral sedation with an anti-anxiety medication, or “twilight” IV sedation from a board-certified dental anesthesiologist who joins us for your procedure.
- Same-day teeth: immediate implants and temporary teeth in suitable cases, so you leave with a confident smile.
- A clean, safe environment: strict sterilization protocols and two medical-grade H13 HEPA air filters.
Insurance & Financing
- We accept all PPO insurance plans, and we are in network with Delta Dental.
- Out-of-network plans: if we are out of network with your plan, our team will help you understand and use your out-of-network benefits.
- Flexible payment: in-house financing and CareCredit.
Frequently Asked Questions
Do I need a referral to see a periodontist?
No. You can book a consultation directly. Many patients are referred by their dentist, and either way we keep your dentist informed and coordinate your care.
What does a periodontist do?
A periodontist is a dentist who has completed advanced specialty training in the gums and the bone that supports your teeth. Periodontists treat gum disease and receding gums, regenerate lost bone, and place and repair dental implants.
Can I get a second opinion?
Yes, and we encourage it. We will review your situation honestly, and in many cases we recommend less treatment than you were first told.
Do you offer sedation for dental anxiety?
Yes. Most procedures need only local numbing. For anxious patients, we offer oral sedation, an anti-anxiety medication taken before your visit, or we can bring in a dental anesthesiologist for IV “twilight” sedation.
Do you take dental insurance or offer payment plans?
We accept all PPO insurance plans and are in network with Delta Dental. If we are out of network with your plan, we will help you use your benefits. We also offer in-house financing and CareCredit.
Are you a dentist? Visit our referring doctors page to refer a patient.
Schedule Your Consultation in Orange, CA
Whether you need treatment or simply want an honest answer, we are here to help.
or call (714) 637-1600
Orange Periodontics and Dental Implantology
1122 E Lincoln Ave, Suite 209
Orange, CA 92865
Mon–Thu 8:00 AM–4:00 PM | Fri 8:00 AM–2:00 PM
Proudly serving Orange, Anaheim, Anaheim Hills, Fullerton, Tustin, Placentia, Yorba Linda, Santa Ana, Villa Park, and Garden Grove.