Acevedo Dental Group
1857 E 4th St, Ontario, CA 91764
Open nowToday: 09:00 AM - 05:00 PM
Ontario, CA
Dentists Open Now in Ontario, CA
Use this Ontario, CA directory page to find dentists open now and build a realistic call list for dental offices that may be open now or useful to call today. Listings include public office details, phone and website availability when listed, hours when available, and links back to the main Ontario dentist directory.
Open now in Ontario
Review offices with public hours, then call to confirm they are open before you travel.
Emergency dentist calls
Use listings for tooth pain, swelling, broken teeth, or urgent dental problems that cannot wait.
Same-day appointments
Ask offices about cancellations, urgent exam slots, and new-patient openings today.
Weekend dentist options
Weekend hours vary by office. Call ahead to confirm Saturday or Sunday availability.
Featured dental offices in Ontario
Open an office profile for address, phone and website actions, hours, source details, claim options, and nearby office links.
12 featured listings
All About Smile Dental Group
10630 Town Center Dr UNIT 131, Rancho Cucamonga, CA 91730
Open nowToday: 09:00 AM - 05:00 PM
Alta Dental Care
311 E Foothill Blvd, Upland, CA 91786
Open nowToday: 09:00 AM - 05:00 PM
Archibald Dental Office
2550 S Archibald Ave ste m, Ontario, CA 91761
Open nowToday: 09:00 AM - 05:00 PM
Archibald Dental Practice
2598 S Archibald Ave C, Ontario, CA 91761
Open nowToday: 09:00 AM - 05:00 PM
Assure Dental of Ontario
961 N Milliken Ave #103, Ontario, CA 91764
Open nowToday: 09:00 AM - 05:00 PM
Baseline Dental Practice
9560 Base Line Rd b, Rancho Cucamonga, CA 91701
Open nowToday: 09:00 AM - 05:00 PM
Beautiful Smiles Ontario
126 W B St, Ontario, CA 91762
Open nowToday: 09:00 AM - 05:00 PM
Bhagat Rajiv DDS
3333 Concours St, Ontario, CA 91764
Open nowToday: 09:00 AM - 05:00 PM
Bloomvale Dental
5337 Hamner Ave Unit 707, Eastvale, CA 91752
Open nowToday: 09:00 AM - 05:00 PM
Borna Family Dental
420 W Baseline Rd Suite B, Claremont, CA 91711
Open nowToday: 09:00 AM - 05:00 PM
Brian D Smith, DDS
540 W Baseline Rd #15, Claremont, CA 91711
Open nowToday: 09:00 AM - 05:00 PM
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FAQ for dentists open now in Ontario
How do I find dentists open now in Ontario, CA?
Use FindOpenDentist to review public dental office listings in Ontario, CA, compare addresses and phone details, then call the office directly to confirm current hours, insurance, emergency availability, and new patient openings.
Are dental offices in Ontario open now?
Some Ontario offices list public hours, but hours can change for holidays, staffing, or emergencies. Check the open-now label where available and call to confirm before traveling.
Can I get a same-day dental appointment in Ontario?
Same-day appointments may be available when an office has cancellations or keeps urgent-care time open. Public listings are a starting point; call offices directly and ask for same-day or emergency availability.
What should I ask when calling a Ontario dentist?
Ask whether the office is open now, whether they handle your dental issue, whether they accept new patients, what insurance or payment options they accept, and how soon you can be seen.