Crown or Filling? How a Spring Valley Dentist Decides a Tooth Needs More
Published
It mostly comes down to how much healthy tooth is left once the decay or damage is cleaned out. If the hole is small and the tooth around it is strong, a filling is usually enough. If the decay is extensive and there isn’t much tooth left, a crown is the usual answer, because the tooth needs covering rather than patching. Desert Hills Dental, on South Fort Apache Road in Spring Valley, does both fillings and crowns.
If you live in Spring Valley and you’ve just been told a tooth “needs a crown,” here’s how that call gets made, and how to check it for yourself.
Key Takeaways
- MedlinePlus says dentists use crowns when tooth decay is extensive and there is limited tooth structure left.
- The Merck Manual says the treatment for decay that has reached the dentin is to remove it and fill the space.
- MedlinePlus notes that large fillings and weak teeth increase the risk of a tooth fracturing.
- For a broken tooth with exposed dentin, the Merck Manual describes a tooth-colored filling, or a crown if the fracture is extensive.
- A crown recommendation is easier to trust when the dentist shows you the X-ray or photo and explains how much tooth is left.
What decides crown or filling?
The size of the problem, and what’s left of the tooth around it.
A filling replaces a small amount of missing tooth. The Merck Manual’s chapter on caries says decay that has reached the dentin is treated by drilling it out and filling the space, and that the filling material depends on the size and location of the cavity. Our fillings and sealants page explains that we use tooth-colored composite.
A crown covers what’s left. MedlinePlus on dental cavities says crowns are used when decay is extensive and there’s limited tooth structure, which can leave a tooth weak, and that the crown is fitted over the remainder of the tooth.
| Your situation | Usual starting point | Question to ask |
|---|---|---|
| Early spot in the enamel only | Fluoride and better home care | Can we try fluoride and recheck it? |
| Cavity into the dentin, tooth mostly intact | A filling | How big will the filling be? |
| Extensive decay, little tooth left | A crown | How much healthy tooth is left? |
| Chipped tooth, dentin showing | A filling, or a crown if the break is large | Is the break too big for a filling? |
| Tooth just had a root canal | A crown in most cases | When should the crown go on? |
The Merck Manual says early decay confined to the enamel is usually treated first with better home care, more frequent cleanings and fluoride. That first row has its own guide: when a small cavity can be watched instead of filled.
Why not just put in a bigger filling?
Because a big filling in a weak tooth can set up a break. MedlinePlus says large fillings and weak teeth increase the risk of tooth fracture, and that after a root canal a crown is needed in most cases to seal and protect the tooth.
When a tooth is strong enough for a filling, a filling is the sensible choice. If your dentist suggests a crown on a tooth that looks fine to you, ask them to point to the old filling or the decay on the image. We take digital X-rays and use an intraoral camera, which lets us show you what we see.
What about a cracked or chipped tooth?
It depends how deep the break goes. The Merck Manual’s page on fractured teeth sorts them like this:
- Enamel only: rough or sharp edges, and smoothing them is optional.
- Dentin exposed: often sensitive to cold air and water, fixed with a tooth-colored filling or, if the break is extensive, a crown.
- Pulp exposed, with bleeding from the tooth, or a loose tooth: urgent, and usually a root canal.
If the tooth itself is bleeding or it moves, call us. We hold time for same-day emergency visits, and our emergency dentistry page covers what to do when the office is closed.
Does a crown mean extra visits?
Not always. Cleveland Clinic’s page on dental impressions says lab-made pieces take one to several weeks, and your dentist may offer a temporary while you wait for a crown.
We use CEREC to make many crowns in our office, with no temporary and no second appointment. Our CEREC page notes it isn’t right for everyone, including people with a deep bite and a history of breaking ceramic work.
Seeing a dentist from Spring Valley?
Spring Valley is an unincorporated town in Clark County, about two miles west of the Las Vegas Strip, running roughly from Sahara Avenue to Warm Springs Road. Our office is at 6740 S Fort Apache Rd, Ste 100, Las Vegas, NV 89148, and our Spring Valley page has more on visiting us.
If you’d like a second look at a crown recommendation from another office, bring your X-rays. Our second opinion guide covers asking for them. You can read about crowns and bridges at our office, and we’re insurance friendly with most PPO plans.
Call (725) 307-5569 or use our contact page to book a visit.
Frequently Asked Questions
How do I know if I need a crown or a filling?
It depends on how much healthy tooth is left after the decay is removed. MedlinePlus says crowns are used when decay is extensive and little tooth structure remains. A smaller cavity in a strong tooth is usually filled. Ask your dentist to show you the X-ray.
Can a large filling crack my tooth?
It can raise the risk. MedlinePlus says large fillings and weak teeth increase the risk of tooth fracture. That’s one reason a dentist may suggest a crown instead of replacing a big old filling with an even bigger one.
Do I always need a crown after a root canal?
Not always, but usually. MedlinePlus says a crown is needed in most cases after a root canal to seal and protect the tooth.
Can I get a crown in one visit?
Sometimes. Lab-made crowns take one to several weeks, according to Cleveland Clinic. We use CEREC to make many crowns in our office in a single visit, though our CEREC page says it may not suit people with a deep bite and a history of breaking ceramic work.
Who can check whether a tooth needs a crown near Spring Valley?
Desert Hills Dental, a general and family dental office at 6740 S Fort Apache Rd in Spring Valley, offers fillings, crowns and same-day CEREC crowns. Its three dentists, Deborah Staten, Fatima Nepacena and Janika Ross, all hold a DMD. Call (725) 307-5569 to book a visit.
Medically reviewed by Deborah Staten, DMD, who leads the practice, and updated on October 22, 2026.
Sources
- MedlinePlus, Dental cavities (review date February 5, 2026)
- Merck Manual Professional, Caries (last updated August 2026)
- Merck Manual Professional, Fractured and Avulsed Teeth (last updated August 2026)
- Cleveland Clinic, Dental Impressions (last updated February 17, 2026)
- Wikipedia, Spring Valley, Nevada (last edited September 30, 2026)
