Published: March 26, 2026
Mountainside Dental provides same-day emergency dental appointments at five Southern California locations. Our team treats toothaches, broken teeth, knocked-out teeth, abscesses, and other urgent dental problems for families across the Coachella Valley and Orange County.
A dental emergency can happen at any moment. Your child takes an elbow to the mouth during a basketball game in La Quinta. You bite down on something hard at dinner in Lake Forest and feel a tooth crack. A throbbing toothache wakes you up at 3am in Rancho Santa Margarita.
Knowing what to do in those first few minutes matters. The right response can mean the difference between saving a tooth and losing it. This guide walks you through the most common dental emergencies step by step, so you can act quickly and protect your family’s smiles until you reach our office.

What Qualifies as a Dental Emergency?
A dental emergency is any situation involving the teeth, gums, or jaw that requires same-day treatment to stop bleeding, relieve severe pain, or save a tooth. The American Dental Association defines dental emergencies as conditions where delaying care could result in permanent damage or more involved treatment later.
Not every dental problem needs urgent care. A small chip with no pain, mild sensitivity to temperature, or a slightly loose baby tooth can usually wait for a scheduled appointment. The situations below require same-day attention.
Knocked-Out Permanent Tooth
A knocked-out tooth can often be reimplanted if you reach a dentist within 30 to 60 minutes. Time is the most important factor.
Cracked or Broken Tooth
A fracture that exposes the inner layers of the tooth creates an entry point for bacteria and causes sharp pain with temperature changes.
Dental Abscess
A pus-filled swelling near the gum line signals a bacterial infection. Untreated abscesses can spread to the jaw, neck, or bloodstream.
Severe Toothache
Intense, persistent pain that does not respond to over-the-counter medication often indicates deep decay, a cracked root, or nerve damage.
Lost Filling or Crown
A missing restoration leaves weakened tooth structure exposed to decay, temperature sensitivity, and possible fracture.
Uncontrolled Oral Bleeding
Bleeding from the gums or a tooth socket that does not stop after 15 minutes of firm pressure needs professional evaluation.
When to Go to the Emergency Room Instead
Call 911 or go directly to a hospital ER if you experience: uncontrolled bleeding that soaks through gauze and does not slow with pressure, difficulty breathing or swallowing, facial swelling that extends toward the eye or down the neck, a suspected broken jaw, or a head injury with dental trauma. Hospital ERs can stabilize these conditions before you see a dentist for tooth-specific treatment.
Step 1: Knocked-Out Tooth First Aid
A knocked-out (avulsed) permanent tooth is the most time-sensitive dental emergency. The periodontal ligament cells on the root surface begin to die within minutes. Successful reimplantation rates drop sharply after the first hour.
Act Within 30 Minutes for Best Results
Find the Tooth and Pick It Up by the Crown
Handle the tooth only by the white crown (the part you see when you smile). Do not touch, scrub, or dry the root. The root surface has delicate cells needed for reattachment.
Rinse Gently If Dirty
Hold the tooth under a gentle stream of water for no more than 10 seconds. Do not use soap, alcohol, or peroxide. Do not wrap the tooth in tissue or let it dry out.
Try to Reinsert the Tooth
If possible, gently push the tooth back into the socket with your fingers and bite down on a clean cloth to hold it in place. This gives the tooth its best chance of survival.
Keep It Moist If You Cannot Reinsert
Place the tooth in cold whole milk. Milk closely matches the pH of the mouth. Alternatives: a tooth preservation kit (Save-a-Tooth), saliva (tuck between cheek and gum), or saline. Do not store in water.
Get to Mountainside Dental Within 30 Minutes
Call your nearest location and let us know you are on your way with a knocked-out tooth. We prioritize these cases. The sooner we reimplant it, the better the long-term outcome.
Important: These steps apply to permanent (adult) teeth only. Do not attempt to reimplant a baby tooth. If a child loses a baby tooth from trauma, control any bleeding with gentle pressure and call us to evaluate for damage to the developing permanent tooth underneath.

Step 2: Broken or Cracked Tooth Care
Teeth crack from biting hard objects, grinding during sleep, sports injuries, or large old fillings that weaken the remaining tooth structure. Treatment depends on how deep the fracture runs.
First Aid for a Broken Tooth
- Rinse your mouth with warm salt water (half a teaspoon of salt in 8 ounces of water) to clean the area and reduce bacteria.
- Save any broken pieces. Place fragments in milk or a wet paper towel. Your dentist may be able to bond them back.
- Apply a cold compress to the outside of your cheek near the break for 20 minutes on, 20 minutes off, to limit swelling.
- Cover sharp edges. If a broken edge is cutting your tongue or cheek, place a piece of sugar-free gum or dental wax over the sharp area.
- Take an over-the-counter pain reliever. Ibuprofen (Advil, Motrin) at the label dose works well because it reduces both pain and inflammation. Do not place aspirin directly on the gum.
- Call Mountainside Dental to schedule a same-day emergency appointment. We take digital X-rays to determine the fracture depth and recommend the most conservative treatment: bonding for minor chips, a crown for structural fractures, or root canal therapy if the nerve is exposed.
Vertical Root Fractures
A crack that starts at the root and extends upward often shows no visible break on the crown. Symptoms include intermittent pain when chewing and a localized swelling near the gum. These fractures are diagnosed with digital X-rays and sometimes a cone beam CT scan. Early evaluation gives you more treatment options.
Step 3: Managing a Severe Toothache
A toothache that wakes you up at night, makes eating impossible, or throbs constantly usually points to a problem that will not resolve on its own. This typically means pulp infection, deep decay, or a crack reaching the nerve.
Pain Management Until Your Appointment
Combine Ibuprofen and Acetaminophen
This combination is more effective for dental pain than either drug alone. Take 400 mg ibuprofen and 500 mg acetaminophen, alternating every 3 hours. Follow package instructions and do not exceed daily limits.
Rinse with Warm Salt Water
Several rinses throughout the day reduce bacteria and soothe irritated tissue around the painful tooth.
Apply a Cold Compress
Hold a cold pack against the outside of your cheek for 20-minute intervals to reduce swelling and numb the area.
Avoid Trigger Foods
Stay away from hot, cold, or sweet foods and drinks that intensify the pain until you can be seen.
Sleep with Your Head Elevated
An extra pillow reduces blood pressure to the head and can ease throbbing pain overnight.
Call Mountainside Dental as soon as the pain starts. We reserve same-day slots for emergency cases across all five of our locations. If your toothache is accompanied by fever, facial swelling, or a foul taste, these signs suggest an active infection that needs prompt treatment.
Step 4: Responding to a Dental Abscess
A dental abscess is a pocket of pus caused by bacterial infection. It can form at the tip of a tooth root (periapical abscess) or in the gum alongside the root (periodontal abscess). Abscesses do not heal on their own. Without treatment, the infection can spread to surrounding bone, soft tissue, and in rare but serious cases, the bloodstream.
Signs of a Dental Abscess
- Persistent, intense, throbbing pain that may radiate to the jawbone, ear, or neck
- A visible bump or pimple on the gum near the affected tooth
- Swelling in the face, cheek, or under the jaw
- Fever and general feeling of illness
- Foul taste or sudden rush of salty fluid if the abscess ruptures
- Sensitivity to pressure when biting
What to Do
- Call Mountainside Dental for an emergency appointment. Abscesses require professional drainage and often antibiotics. Home care cannot clear the infection.
- Rinse with warm salt water to draw some pus toward the surface and ease pressure.
- Take ibuprofen for pain and to reduce inflammation.
- Do not apply heat to the swollen area. Heat can increase swelling and drive the infection deeper.
- Do not try to pop the abscess yourself. This can push bacteria into the bloodstream.
After draining the abscess, our team identifies the infection source. Treatment may include root canal therapy to save the tooth, or extraction if the tooth cannot be preserved. We also offer sedation dentistry for patients who are anxious about emergency procedures.
Step 5: Lost Filling or Crown Repair
A filling or crown can come loose from decay underneath the restoration, a weakened bonding agent, or biting into something hard. The exposed tooth is vulnerable to further fracture, rapid decay, and temperature sensitivity.
Temporary Measures
- Save the crown. If the crown is intact, bring it to your appointment. We can often recement it the same day.
- Clean the crown and tooth. Gently remove any old cement or food from inside the crown and from the tooth surface.
- Use temporary dental cement. Over-the-counter dental cement (available at most pharmacies) or denture adhesive can hold the crown temporarily. Do not use household glue.
- If no cement is available, apply a thin layer of toothpaste inside the crown and press it back on. This is a very short-term measure for hours, not days.
- Avoid chewing on that side until your dentist evaluates the fit.
- Call Mountainside Dental to schedule a same-day or next-day appointment. We assess whether the original crown can be rebonded or if a new restoration is needed.
Lost Filling Tip
For a lost filling (rather than a crown), sugar-free gum can serve as a temporary filling material to protect the cavity from food and air. Press a small piece into the space and avoid chewing on that side. Schedule your appointment as soon as possible since temporary measures do not replace professional restoration.

Dental Emergency Decision: ER vs. Dentist
Knowing where to go saves time and gets you the right care faster. Hospital ERs can manage pain, prescribe antibiotics, and stabilize trauma. However, most ERs do not have the equipment or specialists to perform dental treatment like reimplanting a tooth or placing a crown. A dental office is almost always the better choice for tooth-specific emergencies.
Go to the Dentist When You Have:
- A knocked-out, cracked, or broken tooth
- A severe toothache with or without swelling
- A lost filling, crown, or bridge
- A dental abscess without spreading facial swelling
- Oral bleeding that slows with pressure
- A loose or partially dislodged tooth
Go to the ER When You Have:
- A fractured or dislocated jaw
- Facial swelling that spreads toward the eye, down the neck, or restricts breathing or swallowing
- Uncontrolled bleeding that does not slow after 15 minutes of firm gauze pressure
- Head injury, loss of consciousness, or concussion accompanying dental trauma
- High fever with rapidly worsening facial swelling
After an ER visit for dental trauma, follow up with Mountainside Dental for definitive tooth repair. The ER stabilizes the emergency; your dentist restores the tooth.
Mountainside Dental Emergency Care Locations
We operate five offices across Southern California, each staffed to handle walk-in and same-day emergency appointments during business hours. Our La Quinta flagship location has nine specialists on staff, allowing us to diagnose and treat complex emergencies in a single visit rather than referring you elsewhere.
Coachella Valley Locations
- La Quinta (Flagship): 78461 CA-111, La Quinta, CA 92253. 9 specialists under one roof. Serving La Quinta, Indian Wells, Palm Desert, Indio, and Bermuda Dunes.
- Rancho Mirage: 42500 Bob Hope Dr STE 1, Rancho Mirage, CA 92270. Specializing in prosthodontics and full mouth restoration. Serving Rancho Mirage, Palm Desert, Cathedral City, Thousand Palms, and Palm Springs.
Orange County Locations
- Rancho Santa Margarita: 29941 Aventura, Suite B, Rancho Santa Margarita, CA 92688. Serving RSM, Mission Viejo, Las Flores, Coto de Caza, Ladera Ranch, Dove Canyon, and Trabuco Canyon.
- Lake Forest: 23731 El Toro Rd. Unit D, Lake Forest, CA 92630. Extended Wednesday hours (9am-7pm). Serving Lake Forest, Baker Ranch, Foothill Ranch, Portola Hills, Laguna Hills, and Irvine.
Inland Empire Location
- Yucaipa: 11834 Bryant St., Ste. #104, Yucaipa, CA 92399. Serving Yucaipa, Calimesa, Redlands, Oak Glen, Cherry Valley, and Beaumont.
Across all locations, emergency patients receive:
- Same-day scheduling. We hold appointment slots each day for urgent cases. Call when the problem starts and our team works you in.
- On-site digital X-rays and imaging. We diagnose fractures, infections, and root damage during your emergency visit.
- Full restorative capabilities. Bonding, crowns, root canals, extractions, and reimplantation are all performed in-office.
- Sedation options. We offer sedation dentistry for patients who experience anxiety during emergency procedures.
- Insurance and financing support. We accept most dental insurance and offer CareCredit financing so treatment is not delayed by cost concerns.
“I have been coming here for over 20 years. The team has been great. In 20 years I have not had a complaint. I’m still a patient here!”
– Hilda S., Google Review
How to Prevent Dental Emergencies
While not every emergency can be avoided, these habits reduce your family’s risk:
- Wear a mouthguard during sports. Custom-fitted mouthguards from our office provide better protection than store-bought versions. We recommend them for basketball, soccer, martial arts, and any contact activity.
- Avoid chewing hard objects. Ice, hard candy, popcorn kernels, and pen caps can crack teeth or damage fillings.
- Do not use teeth as tools. Opening packages, bottles, or cutting tape with your teeth stresses enamel and can cause chips or fractures.
- Keep up with regular dental checkups. Our team can identify weakened teeth, worn fillings, or early decay before they become emergency situations.
- Address grinding and clenching. If you wake up with jaw pain or headaches, ask about a nightguard to protect your teeth from wear and fractures.
Frequently Asked Questions
Dental Emergency? We Are Here to Help.
Same-day emergency appointments available at all five locations. Call the office nearest you.
La Quinta (Flagship)
78461 CA-111, La Quinta, CA 92253
9 specialists on staff
Yucaipa
11834 Bryant St., Ste. #104
Yucaipa, CA 92399
Rancho Mirage
42500 Bob Hope Dr STE 1
Rancho Mirage, CA 92270
Rancho Santa Margarita
29941 Aventura, Suite B
RSM, CA 92688
Lake Forest
23731 El Toro Rd. Unit D
Lake Forest, CA 92630
Mountainside Dental provides same-day emergency dental care across five Southern California locations. Serving the Coachella Valley, Orange County, and Inland Empire since 2014. 4.9-star rating from 250+ reviews. Trusted by 5,000+ families. ADA, CDA, AGD member practice. CareCredit accepted.