“Dedicated to Enhancing Your Smile with Exceptional Care and Expertise”.
Medically reviewed by Dr. Angela Leung, DDS – Last reviewed August 19, 2026
If you’ve noticed a mouth change that won’t heal, keeps returning, or looks different than it used to, you deserve clarity not “let’s keep an eye on it” with no plan.
At Angela Leung DDS PC – The Endodontics Implant Center, we evaluate oral lesions with a diagnosis-first approach: we rule out serious disease early, confirm what’s happening with appropriate testing (including biopsy when indicated), and build a next-step treatment plan that protects your long-term oral health teeth, bone, nerves, and future dental work.
A persistent sore, lump, white/red patch, or new discoloration can be unsettling. Some causes are minor (irritation, infection, trauma). Others require prompt diagnosis and coordinated treatment.
Our goal is simple:
Oral pathology looks at diseases and abnormal changes in the mouth, jaw, and surrounding tissues. Your evaluation is built to identify:
When a lesion persists, your safest path is a structured evaluation and a documented plan. (Professional guidance emphasizes careful lesion evaluation, biopsy decision-making, and referral criteria when indicated.)
We start with the factors that change risk and healing:
When appropriate, we document what we see so your care isn’t based on memory:
If we need to evaluate deeper structures bone involvement, tooth/root proximity, sinus/nerve anatomy we may recommend 3D imaging (CBCT) to support safe planning.

Replacing missing teeth with durable artificial implants.

Specialized care for complex dental procedures.

Specialized dental care treating tooth pulp and roots.

Specialized care for gums and supporting structures.

Repairing teeth for function, health, aesthetics.

Enhance smiles with aesthetic and dental treatments.

Precise evaluation of bite alignment and jaw function.

Clear, precise guidance for safe and effective surgery.
If the lesion pattern or timeline warrants confirmation, we move forward with evidence-based testing and biopsy.
If monitoring is appropriate, it’s done with:
If results require additional care, we coordinate the right sequence so treatment happens on a stable foundation. That can include oral surgery support, restorative planning, endodontic therapy, or implant planning after tissues are appropriately managed.
Schedule an oral pathology visit if you notice:
If you’re worried, it’s worth getting a clear answer.
If biopsy is needed, we choose the method based on size, location, and what we need to confirm:
Your provider will explain why a specific approach fits your case and what the result will change in the plan.
After biopsy:
Concerns about oral lesions are personal and often stressful. We keep the process clear and manageable:
We’ll give you a written plan with costs before treatment begins, then help you choose a realistic path forward.
Not necessarily. Biopsy is a tool to confirm what the tissue is, so the plan is based on evidence—not assumptions.
Yes. Some concerning conditions aren’t painful early. That’s why documentation and diagnosis matter.
If a sharp edge or bite trauma is contributing, we can address aggravators without masking what needs diagnosis, and still keep the plan medically sound.
If you have a persistent or worsening lesion, call and we’ll prioritize next available evaluation
We’ll review insurance/payment options with you when scheduling.
Angela Leung DDS PC – The Endodontics Implant Center
1131 Mission Road, South San Francisco, CA 94080
Phone: 415-681-2697
Hours: Monday–Friday 10:00 am – 6:00 pm (Saturday & Sunday closed)
If you’re dealing with missing teeth, failing dental work, or full-mouth breakdown, the fastest relief is clarity.