Inlays and Onlays in Brentwood
When a Filling Isn't Enough and a Crown Is Too Much
You bite into something hard. Maybe a piece of ice, maybe that granola you eat every morning. And suddenly there’s a crack running through a back tooth. It’s not a tiny cavity. But it’s not bad enough to cap the whole tooth with a crown either.
That’s exactly where inlays and onlays fit in.
We see this scenario in our Brentwood office more than almost anything else. A patient comes in thinking they need a filling, we take a look, and the damage is just too big for one. A regular filling in that situation won’t hold. It’ll flex under chewing pressure, and within a year or two you’re back in the chair with a worse problem. But grinding down the tooth for a full crown removes healthy structure you don’t need to lose.
Here’s how to think about the difference between your three options:
- Fillings work for small cavities where most of the tooth is still solid
- Inlays and onlays cover moderate damage, fitting inside or over the cusps of a tooth without replacing the whole thing
- Crowns are for teeth that have lost so much structure they need full coverage to survive
An inlay sits down inside the grooves of your tooth. Think of it like a puzzle piece that drops right into place. An onlay goes a step further, wrapping over one or more of the raised points on top. Both restore strength without sacrificing what’s still healthy.
Many patients we see have never even heard of this option. Their old dentist just went straight to a crown. But keeping more of your natural tooth matters for long-term health, for how the tooth feels when you chew, for everything.
According to the American Dental Association, conservative restorations that preserve tooth structure tend to support better outcomes over time. That’s the whole idea here. Do what the tooth actually needs. Nothing more.
So if you’ve been told a filling won’t cut it, don’t assume a crown is your only path forward. There’s a middle ground, and it might be the best thing for your tooth.
What to Expect at Each Appointment
Most inlays and onlays take two visits. That’s it. Two trips to our Brentwood office and you’re done.
Here’s what happens at each one:
Visit One: Prep and Impressions
- We numb the area so you won’t feel a thing. If you’re anxious, we offer nitrous oxide and oral sedation too.
- We remove the damaged or decayed part of your tooth. Nothing more than what’s necessary.
- We take a digital impression of the prepared tooth. No goopy trays, just a quick scan with our 3D imaging.
- We place a temporary restoration to protect the tooth while the lab crafts your permanent piece.
- You head home. The whole appointment usually runs about an hour.
That temporary does its job well, but treat it gently. Avoid sticky foods on that side for a few days.
Visit Two: Placement
This one’s even faster. We remove the temporary, check the fit of your new inlay or onlay, and bond it into place. Most people are surprised how quick it goes. We see patients come in on their lunch break and get back to work with time to spare.
The fit check is the part we care about most. We’ll have you bite down on marking paper, adjust if anything feels even slightly off, then polish everything smooth. Your bite should feel completely natural before you leave.
One thing people always ask: does the second visit hurt? Almost never. Some patients don’t even need numbing for the placement appointment since the tooth is already shaped and we’re just seating the restoration. But we’ll numb you if you want. Your comfort matters more than saving five minutes.
Between visits there’s usually a one to two week gap. The lab needs time to mill your restoration from a solid block of material. We won’t rush that step. A precise fit means the restoration lasts years longer.
Ready to get started? Give us a call and we’ll walk you through everything before your first appointment.
Inlays vs. Onlays: Understanding the Difference
Here’s the simple version. An inlay fits inside the grooves of your tooth, like a puzzle piece that drops into the center. An onlay covers more ground, wrapping over one or more of the raised edges (called cusps) on top of your tooth. Both are sized differently based on how much tooth structure needs rebuilding.
So how do we decide which one you need? It comes down to where the damage is and how far it’s spread.
- Decay or damage contained within the tooth’s biting surface usually calls for an inlay
- Damage that extends to one or more cusps means an onlay gives better coverage
- Teeth that are cracked but still structurally sound often do well with an onlay instead of a full crown
- Old fillings that have broken down sometimes leave a cavity shape that fits an inlay perfectly
We can usually tell which option makes sense from your digital x-ray and a visual exam. But sometimes we don’t make the final call until we’ve removed the old filling or decay and can actually see what’s left of the tooth. That’s honest dentistry. We’re not guessing from the outside.
The real benefit for you? Both options save healthy tooth structure. A traditional crown requires shaving down the entire tooth. An inlay or onlay only covers what’s damaged, and your natural tooth does the rest of the work. Patients in Deer Ridge and across Brentwood tell us they can’t even feel the difference from their original tooth once everything’s bonded in place.
Because onlays cover the cusps, they actually reinforce the tooth. A large filling can weaken what’s left of the structure over time. An onlay holds it all together. We’ve placed these restorations for over a decade and watched them hold up year after year at recall visits.
Not sure which one you’d need? Give us a call and we’ll figure it out together.
How Long Inlays and Onlays Last With Proper Care
Most of our patients in Brentwood ask this question before they even sit down. The answer is better than people expect.
Porcelain and ceramic inlays and onlays routinely last 15 to 30 years. Some go even longer. According to the Journal of Prosthetic Dentistry, well-placed ceramic restorations show survival rates above 90 percent at the 10-year mark. That’s tracked data from real patients over real time.
But longevity isn’t automatic. What you do after you leave our office matters just as much as what we do during the procedure.
What Keeps Them Strong
A few habits make the biggest difference in how long your restoration holds up:
- Brushing twice a day and flossing around the restored tooth every night
- Keeping your regular exam and cleaning appointments so we can catch small problems early
- Wearing a night guard if you grind or clench your teeth while sleeping
- Avoiding hard candy, ice chewing, and using your teeth to open packages
We have patients who got inlays and onlays placed over a decade ago. Still look great. Still functioning perfectly. The ones who come in for their cleanings on schedule tend to keep those restorations the longest.
When a restoration fails early, it’s usually not because the material gave out. It’s because decay crept in around the edges from poor hygiene, or someone bit down on something they shouldn’t have.
Here’s something people don’t realize. Inlays and onlays actually protect the remaining tooth structure better than traditional fillings over time. A large filling can flex and weaken what’s left of the tooth. A bonded inlay or onlay holds everything together like a splint, so the tooth itself lasts longer too.
Not sure if yours still looks right after a few years? That’s what follow-up visits are for. We check the margins, test the bite, and take x-rays if anything looks off. Small fixes now prevent big problems later.
Your restoration is only as good as the care behind it. We do our part in the chair. You do yours at home. That’s the deal that makes these things last decades instead of just years.
The Cost of Waiting on a Recommended Inlay or Onlay
We hear it all the time. “It doesn’t hurt yet, so I’ll wait.” That’s the sentence that turns a simple fix into a big problem.
Here’s what actually happens when you delay. The tooth already has damage. Your dentist spotted it, measured it, and told you it needs protection. That damaged area doesn’t just sit there quietly. It collects bacteria every day. Food packs into the weak spot. The crack or old filling margin keeps flexing when you chew, and slowly the decay spreads deeper into the tooth structure.
What starts as a candidate for an inlay or onlay can quickly become something else entirely:
- A tooth that now needs a full crown because too much structure is gone
- Decay that reaches the nerve, requiring root canal treatment before any restoration
- A fracture that splits below the gumline, making the tooth impossible to save
- An infection that leads to an emergency visit and possible extraction
We see this progression in our Brentwood patients more than we’d like. Someone comes back six months after we recommended an onlay, and now we’re talking about saving the tooth instead of simply restoring it.
Think about it this way. Your tooth is like a cracked windshield. A small chip is easy to repair. Drive around long enough and that chip becomes a crack running across the whole thing. Replacement is the only option at that point.
The American Dental Association notes that early intervention with indirect restorations can help preserve natural tooth structure and reduce the need for more invasive procedures later. That lines up with everything we see in our office daily.
So if you’ve been putting off a recommended inlay or onlay, don’t wait for pain to make the decision for you. Pain means the problem has already advanced. The whole point of catching it early is staying ahead of that moment.
Frequently Asked Questions About the Service
How is an inlay or onlay different from just getting a filling?
An inlay or onlay covers more tooth than a filling can handle, but less than a full crown removes. A regular filling flexes under chewing pressure when the cavity is too large. Over time, that flex cracks the tooth further. An inlay or onlay is custom-made to fit the exact shape of your damage. It bonds directly to the tooth and actually strengthens it. If your old filling keeps breaking down, this is likely the better fix.
How many appointments does it take to get an inlay or onlay in Brentwood?
It takes two appointments at our Brentwood office. The first visit runs about an hour. We remove the damage, take a digital scan, and place a temporary restoration. The lab then mills your custom piece, which takes one to two weeks. The second visit is much faster. We seat the restoration, check your bite, and polish it smooth. Many patients come in on a lunch break for that second appointment and head straight back to work.
Will an inlay or onlay feel different from my natural tooth?
Most patients say they cannot tell the difference once the restoration is bonded in place. We adjust the fit until your bite feels completely natural before you leave. Patients in Deer Ridge and across Brentwood have told us they forget which tooth was even treated. The material is matched to your tooth color, so it blends in visually too. If anything feels off after a few days, call us and we will adjust it quickly.
Do I really need a crown, or could an inlay or onlay work instead?
If your tooth still has solid structure around the damaged area, an inlay or onlay is often the better choice. A crown requires shaving down the entire tooth, including healthy parts you do not need to lose. We see patients in Brentwood regularly who were told a crown was their only option. After examining the tooth, we find an onlay covers the damage just as well. We will always recommend the most conservative option that actually solves the problem.
How long will an inlay or onlay last?
With good home care, inlays and onlays can last ten to thirty years. The fit quality matters most. A precisely made restoration that bonds fully to the tooth holds up far longer than one that was rushed. We have placed these restorations for over a decade and seen them hold strong at yearly checkups. Brushing twice a day, flossing, and keeping your regular cleanings in Brentwood are the main things that protect your investment long term.
Is the procedure painful?
The first appointment involves numbing, so you should not feel anything during prep. If you are anxious, we offer nitrous oxide and oral sedation at our Brentwood office. The second appointment, when we place the finished restoration, often requires little or no numbing at all. The tooth is already shaped, so we are just seating the piece and checking your bite. We will always numb you if you want it. Your comfort comes first, no matter how quick the visit is.