Your Local Dentist in Diamond Bar, CA

Grand Avenue Dentistry » Diamond Bar Dentist

Preventive Care

Prevent problems before they start

Early Detection

Identify issues early

Care for All Ages

Comprehensive care for the whole family

Better Health

Support your oral and overall health

Unique Plans

Tailored treatment for your needs.

Comprehensive Dental Care Near You

Finding a dentist you can trust should be simple. At Grand Avenue Dentistry, we provide comprehensive dental care for children, teens, adults, and families in Diamond Bar, California. Our goal is to make quality dental care easy to access, comfortable, and convenient. We also help you keep a healthy smile for years to come.

From routine dental exams and cleanings to restorative and emergency care, our team offers personalized treatment. We base your care on your oral health needs. We accept insurance options including Denti-Cal, PPO, and HMO networks.

Whether you need a new family dentist, a routine checkup, or urgent dental care, Grand Avenue Dentistry can help.

Why Choose Grand Avenue Dentistry?

Choosing a dental office is about more than finding a convenient location. You want a team that listens to your concerns, explains your options, and makes you feel comfortable throughout your care.

At Grand Avenue Dentistry, we provide comprehensive dental care with a compassionate approach.

Comfortable, Patient-Focused Care

Dental visits can be stressful, especially if you have had an uncomfortable experience in the past. Our friendly, non-judgmental team works to create a welcoming environment for every patient.

Grand Avenue Dentistry - Dentist in Dimond Bar

Comprehensive Dental Services

We offer a wide range of dental services so that patients can receive preventive, restorative, cosmetic, and urgent care in one place.

Our services include:

  •  Dental exams & evaluations

  • Teeth cleanings

  • Sedation for dental anxiety

  • Emergency Dental Care

  • Dental crowns

  • Root canal therapy

  • Tooth Extractions
  • Cosmetic dental treatments

What Dental Services are Available in Diamond Bar?

Grand Avenue Dentistry provides dental care for patients at different stages of their oral health journey. Whether you are focused on prevention or need treatment for an existing problem, we can help you understand your options.

Preventive Dental Care

Routine dental care can help identify problems before they become more serious. Regular exams, cleanings, X-rays, and preventive treatments allow your dentist to monitor your oral health and address concerns early.

Preventive services include:

  • Routine dental exams
  • Professional teeth cleanings
  • Digital X-rays
  • Fluoride treatments
  • Oral health evaluations

Restorative Dentistry

If a tooth has been damaged by decay, injury, or normal wear, restorative treatment can help restore its function and appearance.

Restorative treatments include:

  • Tooth-colored fillings
  • Dental crowns
  • Root canal therapy
  • Tooth extractions

Emergency Dental Care

Grand Avenue Dentistry offers same-day treatment for urgent dental needs when possible. If you are experiencing a dental emergency, contact the office as soon as possible so we can determine the appropriate next step.

Dental emergencies could include:

  • Jaw pain
  • Broken tooth
  • Severe toothache
  • Swelling
  • Infection

Sedation Dentistry

Dental anxiety can make it difficult to schedule or complete necessary dental care. Grand Avenue Dentistry offers nitrous oxide sedation to help eligible patients feel more relaxed during their appointments.

Procedures that can include sedation are:

  • Dental exams
  • Teeth cleanings
  • Dental fillings
  • Dental Crowns
  • X-rays

How Often Should I Visit A Dentist?

Most patients benefit from routine dental examinations and professional cleanings based on their individual oral health needs. Your dentist can recommend an appropriate schedule after evaluating your teeth, gums, hygiene habits, and risk factors.

Regular appointments are important because some dental problems may not cause noticeable symptoms in their early stages.

Routine visits can help your dentist:

  • Check for cavities and tooth damage
  • Evaluate your gums
  • Monitor changes in your oral health
  • Identify potential problems early
  • Provide professional cleaning
  • Recommend appropriate preventive care

Affordable & Accessible Dental Care

Cost can be a concern when choosing a dentist. Grand Avenue Dentistry is committed to making dental care accessible to the community.

The practice accepts insurance options including Denti-Cal, PPO, and HMO networks. Insurance coverage varies by plan, so our team can help you understand your available options and verify benefits when applicable.

We also offer financing options for patients who need help managing treatment costs.

Grand Avenue Dentistry- Dentist in Diamond Bar

Say Goodbye to Tooth Pain & Hello to a Healthy Smile

Serving Diamond Bar & Nearby Communities

Grand Avenue Dentistry is located in Diamond Bar and serves patients throughout the surrounding communities of eastern Los Angeles County and northern Orange County.

Patients may also come to our office from nearby communities including:

  •  Walnut

  • Chino

  • Rowland Heights


  • Chino Hills

  • Pomona

  • Brea


What Should I Do If I Need A Dentist in Diamond Bar?

If you are looking for a new dentist, the best place to start is with a comprehensive dental examination. During your visit, the dental team can evaluate your current oral health, identify any concerns, and discuss recommended preventive or restorative treatment.

If you are experiencing pain, swelling, a broken tooth, or another urgent dental problem, contact the office rather than waiting for symptoms to resolve on their own.

Your Diamond Bar Dental Office

Grand Avenue Dentistry is committed to providing accessible, comprehensive dental care with an emphasis on prevention, comfort, and personalized treatment. If you are searching for a Diamond Bar dentist, we invite you to contact Grand Avenue Dentistry and take the next step toward maintaining a healthy smile.

Why Choose Grand Avenue Dentistry?

Patients throughout Diamond Bar and neighboring communities choose our office for our combination of clinical excellence and compassionate care. 

Benefits of our practice include: 


  • Comprehensive dental care

  • Preventive-focused philosophy

  • Modern technology

  • Oral cancer screenings

  • Nitrous oxide sedation options

  • Same-day emergency availability when possible

  • PPO, HMO, and Denti-Cal acceptance

  • Personalized treatment plans

  • Comfortable environment for the entire family
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Carlos Acosta
March 27, 2026
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The appointment went flawlessly. The staff was nice and efficient, and the dentist was very knowledgeable and helpful. Would recommend them to everyone.
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charles fisher
March 19, 2026
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Grand Avenue is a wonderful dental office. Dr. Gregorian is a caring, warm thorough professional.
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Hee Bok Kim
March 16, 2026
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Received warm, caring and professional services from Dr. Yang and staff. I highly recommend Grand Avenue Dentistry.
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Richard Jewik
March 11, 2026
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Very courteous and may me feel valuable. Not like an assembly line
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Josie Lopez
February 27, 2026
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I've been going to Grand Ave Dentistry in Diamond Bar for over 20 years. I'm always greeted by their friendly and professional staff. They always make me feel welcome and relaxed on my visits!
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Bella O
February 26, 2026
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Been coming for so many years..
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Frequently Asked Questions 

What services does Grand Avenue Dentistry provide?

We provide preventive, restorative, cosmetic, and emergency dental care. Grand Avenue Dentistry offers exams, cleanings, digital X-rays, fillings, crowns, root canal therapy, tooth extractions, sedation dentistry, and emergency dental care.

Does Grand Avenue Dentistry accept Denti-Cal?

Yes. Grand Avenue Dentistry is a certified Denti-Cal provider and also works with PPO and HMO insurance networks. Coverage varies by individual plan.

Do you treat dental emergencies?

Yes.  At Grand Avenue Dentistry we provide urgent dental care and same-day treatment when possible. Patients experiencing severe tooth pain, swelling, infection, or dental trauma should contact the office promptly.

How often should I visit a dentist?

The recommended frequency of dental visits depends on your individual oral health needs. Routine exams and professional cleanings allow your dentist to monitor your teeth and gums and identify potential problems early.

How do I schedule an appointment with a Diamond Bar dentist?

You can contact Grand Avenue Dentistry to schedule an appointment. If you are a new patient, let the team know what type of care you need and mention any dental concerns or anxiety you may have when scheduling your appointment.

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