A toothache keeping you up
Throbbing pain, or pain that lingers after hot or cold, usually means the nerve is involved.
About root canalsWe hold time in the schedule for dental emergencies. Tell us what's happening and we'll get you the first available visit — the same $95 flat visit, or $0 out of pocket with an active PPO plan, no emergency upcharge. Out of pain first, then a plan you've seen the price of.
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In Line Dentistry is an emergency dentist for tooth pain in Diamond Bar: Dr. James Chon, DMD, performs emergency tooth extractions in-house, and genuine emergencies can be seen the same day because he comes in on his off days. An emergency visit is the same new-patient visit, $95 flat, or $0 with an active PPO plan, priced in writing first.
Plan for 90 minutes. We check your benefits for free before you come in. In pain now? Call or text (909) 345-6155 first — Dr. Chon comes in for real emergencies, even on non-treatment days.
Not sure it qualifies? Call anyway — describing it takes two minutes and costs nothing.
Throbbing pain, or pain that lingers after hot or cold, usually means the nerve is involved.
About root canalsChips, cracks, and knocked-out teeth are time-sensitive — the first hour matters most.
Repair optionsGum swelling or a pimple-like bump signals infection. Don't wait this one out.
The exposed tooth underneath is vulnerable. Keep the crown if you have it and bring it in.
Crowns & bridges
Rinse with warm salt water and take the over-the-counter pain reliever you'd normally use. Cold compress on the cheek for swelling — never heat, and never hold aspirin against the gum. Save the pieces of a broken tooth and bring them. This is general first aid, not a diagnosis — call and we'll tell you what yours needs.
You leave knowing what's wrong and what it costs — no insurance required, and no treatment starts before you've seen the number in writing.
The focused exam and digital X-rays that diagnose the problem tooth — the same new-patient visit, with no separate emergency fee.
All published pricesIn-network with Aetna, Anthem, Cigna, Delta Dental, Guardian, Humana, MetLife and UnitedHealthcare. With other PPO plans you pay at the visit, we file your claim the same day, and your insurer reimburses you. We verify your benefits and give you an estimate before you arrive.
Insurance detailsFinancing options that spread the cost, arranged the same visit.
Financing optionsWe're on Golden Springs Dr in Diamond Bar, near the 57/60 — patients reach us from Walnut, Rowland Heights, Chino Hills, Pomona, Phillips Ranch, and Brea. Call before you drive and we'll have you expected.
Treatment is covered for four years from completion. One condition: keep up with your routine recall visits.
Read the policy →"Dr. James is the rare dentist who genuinely puts you at ease. His calm, friendly demeanor makes the whole experience feel less like a dental visit."
"The entire team was welcoming, professional, and incredibly attentive. The office is clean, modern, and runs very efficiently."
"Dr James is not only professional and very knowledgeable, his friendly demeanor kept me calm."
What eases a toothache until you are seen, the warning signs not to wait on, and how the visit works — the same $95 flat visit, or $0 out of pocket with an active PPO plan.
Toothache helpWhat to do in the first hour, which breaks cannot wait, and how a broken tooth is repaired.
Broken toothThe first minutes matter most. How to handle the tooth so it has the best chance of going back.
Knocked-out toothWhat helps with swelling near a tooth, and the signs that mean the emergency room first.
Swollen gumHow to protect the tooth until it is seen, and when a crown can go back on.
Lost filling or crownDone in-house by Dr. Chon, same day for a genuine emergency, priced in writing before it starts.
Tooth extractionsWhen tooth pain means the nerve is involved, and how the tooth is saved.
Root canalsCall or text the office and tell us what's happening — we hold time in the schedule for emergencies and will get you the first available slot. Dr. Chon treats patients Tuesdays and Thursdays, and for a genuine dental emergency he comes in on his off days, so same-day care is possible. Reach us any day we're open (Mon 8 AM – 6 PM · Tue 9 AM – 6 PM · Wed 8 AM – 6 PM · Thu 10 AM – 7 PM · Fri 8 AM – 6 PM · Sat 8 AM – 1 PM) and we'll triage you by phone and book the soonest treatment time.
For a genuine emergency, it is possible. Emergency tooth extractions are done in-house at In Line Dentistry, and Dr. Chon comes in on his off days for a genuine emergency. It starts with the emergency visit — the same $95 flat visit, or $0 out of pocket with an active PPO plan; if the tooth needs to come out, the extraction is priced in writing before it starts.
Severe or throbbing toothache, a broken or knocked-out tooth, swelling in the gum or face, a lost crown or filling, or bleeding that won't stop. Facial swelling reaching your eye or throat, or trouble breathing or swallowing, is a medical emergency — go to the ER first; we'll handle the tooth after.
It is the same new-patient visit — $95 flat, or $0 with an active PPO plan — with no separate emergency fee. It covers the focused exam of the problem tooth and the digital X-rays needed to diagnose it, so you leave knowing exactly what is wrong and what it costs to fix. Any treatment you decide on is quoted in writing before it starts.
You're welcome here, including out-of-network. We verify benefits before the visit and give you an estimate; you pay at the visit, we file your claim the same day, and your insurer reimburses you. Give us your card details on the phone and we'll check before you arrive.
Pick it up by the crown, never the root. Rinse gently with milk or saline if it's dirty and try to seat it back in the socket; if you can't, keep it in a cup of milk and call us immediately. A knocked-out adult tooth is most savable within the first hour.
An ER can manage swelling, infection, and pain with medication, but rarely has a dentist on staff — so the tooth goes untreated and the problem returns. Unless you have facial swelling, fever, or trouble breathing or swallowing, a dental office is where the tooth actually gets fixed, and it costs far less.
Dental pain rarely improves on its own, and infections don't wait. Call (909) 345-6155 and tell us what's happening — or pick the first open time below, and call or text too so we can fit you in.
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Online times aren't available right now. Tell us who's coming and we'll text you a Tuesday or Thursday time.
You requested a Tuesday or Thursday time. This is a request, not a confirmed appointment. We'll text you to confirm it, usually the same business day.
20855 Golden Springs Dr #108, Diamond Bar, with free parking right outside. Need a different time? Call or text (909) 345-6155.
This is a request, not a confirmed appointment. We'll text you a Tuesday or Thursday time to confirm, usually the same business day.
20855 Golden Springs Dr #108, Diamond Bar, with free parking right outside.