Your dental questions, answered
The things patients most often wonder about — from whitening and cavities to root canals and nervous visits. Have one that's not here? Just give us a call.
General dental questions
How often should I see the dentist?
For most people, a checkup and cleaning every six months is the sweet spot — often enough to catch small issues like early decay or gum inflammation before they become painful (and expensive). If you have gum disease, implants, or a history of frequent cavities, we may suggest coming in every three to four months. Very healthy mouths can sometimes stretch to once a year. We'll tailor the schedule to you at your first visit.
What's the best way to whiten my teeth?
Professional whitening done through a dental office gives you the safest, most dramatic results, because the gel is far stronger than anything sold over the counter — and we protect your gums while it works. Whitening toothpastes only lift surface stains, and drugstore kits use very low concentrations, so results are modest. The best first step is a cleaning: removing built-up stain and tartar alone can noticeably brighten your smile. You can see the kind of change whitening makes on our home page.
Do I really need to floss every day?
Yes — brushing cleans the fronts and tops of your teeth, but it misses the surfaces between them, which is exactly where cavities and gum disease love to start. Daily flossing (or a water flosser, or interdental brushes for larger gaps) clears the plaque a toothbrush can't reach. If your gums bleed when you floss, that's usually a sign of inflammation, not a reason to stop — it often improves within a week or two of flossing consistently.
How can I prevent cavities?
The fundamentals do most of the work: brush twice a day for two minutes with a fluoride toothpaste, clean between your teeth daily, and go easy on sugary and acidic drinks — sipping soda, energy drinks, or sparkling water throughout the day is especially hard on enamel. Regular cleanings and checkups catch the spots you can't see yourself. Fluoride treatments and sealants add extra protection, particularly for kids.
Are dental X-rays safe?
Yes. Modern dental X-rays use very low levels of radiation — a routine set is a small fraction of what you're naturally exposed to in everyday life — and we use protective shielding as a precaution. They let us see between and inside teeth and below the gumline, revealing decay, infection, and bone issues long before they'd be visible or symptomatic. We only take them when there's a clear diagnostic reason.
What is a root canal, and does it hurt?
A root canal treats a tooth whose inner pulp has become infected or badly inflamed, usually from deep decay or a crack. The infected tissue is removed, the inside is cleaned and sealed, and the tooth is saved rather than pulled. Its painful reputation is outdated — with today's anesthesia the procedure itself feels much like getting a filling, and it actually relieves the toothache that brought you in.
What are my options for replacing a missing tooth?
The main options are a dental implant, a bridge, or a partial denture. Implants are considered the gold standard: a small post replaces the root and supports a crown that looks and functions like a natural tooth, while also helping preserve the jawbone. Bridges anchor a replacement tooth to the neighbors, and partials are a removable option. Replacing a missing tooth matters for more than looks — gaps let nearby teeth shift and can change your bite. See a before-and-after example on our home page.
Why are my teeth sensitive to hot and cold?
Sensitivity usually means the protective enamel has thinned or the gums have receded, exposing the softer layer beneath that connects to the tooth's nerve. Common culprits include aggressive brushing, grinding, acidic diets, or worn fillings — and sometimes it signals a cavity or cracked tooth. A sensitivity toothpaste can help mild cases, but persistent or sudden sensitivity is worth having checked so we can find the cause.
How do I get rid of bad breath?
Persistent bad breath most often comes from bacteria on the tongue and between the teeth, so the basics help a lot: brush twice daily, clean between your teeth, gently brush your tongue, and stay hydrated. If it lingers despite good habits, it can point to gum disease, a dry mouth, or an untreated cavity — all things a checkup can identify and address. Chronic cases are worth a professional look rather than just masking with mints.
I get anxious about the dentist — what can I do?
You're far from alone, and it's something we take seriously rather than brush off. Tell us before your visit so we can go slower, explain each step, and take breaks when you need them. Many patients find that simply knowing what's coming — and that they can pause anytime — makes a huge difference. Our team is used to nervous patients, and our reviewers often mention how comfortable and painless their visits felt.
Are electric toothbrushes better than manual ones?
A manual brush used correctly cleans perfectly well — but in practice, most people brush too briefly or too hard. Electric brushes do more of the work for you and often include timers, which is why they tend to remove plaque more effectively for the average person. What matters most is technique and consistency: two full minutes, twice a day, with a soft-bristled brush and fluoride toothpaste, whichever type you use.
When should my child first see a dentist?
The general guidance is by their first birthday, or within six months of their first tooth appearing. These early visits are short and friendly — mostly about getting your child comfortable, checking that teeth are developing well, and giving you tips on brushing and diet. Starting early helps prevent problems and builds a positive relationship with the dentist that pays off for a lifetime.
After your treatment: aftercare & recovery
What should I expect after a root canal?
Mild soreness or tenderness for a few days is normal, especially when biting, and usually eases with over-the-counter pain relievers. Try to chew on the other side until any permanent crown is placed, since the tooth can be more fragile until then. Call us if you have severe pain, swelling, or the temporary filling comes out. A treated tooth almost always needs a crown afterward to protect it — we'll talk through the timing with you.
How do I care for my mouth after a tooth extraction?
For the first 24 hours, the priority is protecting the blood clot that forms in the socket: don't rinse forcefully, don't drink through a straw, and avoid smoking, since suction can dislodge the clot and cause painful "dry socket." Bite gently on the gauze we provide, rest, and stick to soft foods. A little bleeding and swelling is normal — ice and elevation help. After the first day, gentle warm salt-water rinses keep the area clean. Call us if bleeding is heavy or pain worsens after a few days.
Why does my extraction site have a bad taste or smell — and when should I worry?
A mild taste can come from healing and food debris, which gentle salt-water rinses (starting the day after) usually resolve. But increasing pain three to four days out, especially throbbing that radiates to your ear along with a foul taste, can signal dry socket — a lost blood clot that leaves the bone exposed. It's treatable and we can relieve it quickly, so call us rather than waiting it out.
How do I take care of a temporary crown?
Temporary crowns are just that — temporary — so treat the tooth a little gently. Avoid sticky foods (gum, caramel, taffy) that can pull it off and hard foods that could crack it, and when flossing, slide the floss out sideways rather than lifting up so you don't catch the edge. Some sensitivity to hot and cold is normal. If the temporary comes loose or falls off, keep it and call us — it protects the prepared tooth until your permanent crown is ready.
What's different about caring for a permanent crown?
Once your permanent crown is cemented, you can eat and clean normally — brush and floss it just like a natural tooth, since the gumline around it can still develop decay or gum disease. It may feel slightly different or mildly sensitive for a few days as you adjust. If your bite feels "high" or uneven once the numbness wears off, let us know; a quick, painless adjustment fixes it. With good care, crowns commonly last many years.
What should I expect after a filling?
You can usually eat once the numbness wears off — wait, if you can, to avoid biting your cheek or tongue. Some sensitivity to hot, cold, or pressure for a few days is normal, particularly with deeper fillings. If your bite feels off or too tall after the anesthesia fades, call us for a simple adjustment. Sensitivity that keeps intensifying or lingers beyond a week or two is worth a check rather than waiting.
How long will I be numb, and can I eat afterward?
Dental anesthesia typically wears off over two to four hours. While you're numb, hold off on eating if possible — it's easy to accidentally bite your cheek, tongue, or lip without feeling it, and hot foods or drinks can burn you unnoticed. When you do eat after a filling, crown, or other restorative work, start with softer foods on the opposite side, and follow any specific instructions we give you for your procedure.
When should I call the office after a procedure?
Some soreness, swelling, and sensitivity are a normal part of healing. Reach out if you have severe or worsening pain that isn't helped by the medication we recommend, swelling that keeps growing after two to three days, a fever, bleeding that won't slow, a lost filling, crown, or temporary, or a bite that feels wrong once numbness fades. When in doubt, it's always fine to call — we'd rather hear from you than have you wonder.
Still have a question?
The best answers come from actually seeing your smile. Call our El Cajon office and we'll help — new patients always welcome.
The information on this page is general and for education only — it isn't a substitute for a personal exam or professional dental advice. Please see a dentist about your specific situation.