How Molar Implants Restore Your Chewing Power

10 November 2026

Quick answer: A molar implant restores chewing power by replacing the missing root as well as the crown, so the new tooth takes bite forces through the jawbone the way a natural molar does. That brings back the broad grinding surface your back teeth use to break food down, without cutting down or leaning on the teeth beside it.

It usually starts at dinner.

You reach for a piece of steak, or a handful of almonds, and without thinking you shift it to the other side of your mouth. The side with the gap does not feel safe anymore.

At first it is a small habit. Then you notice you are cutting food smaller, skipping the crusty bread, and chewing longer than everyone else at the table.

Nobody sees a missing molar when you smile. You feel it every time you eat.

The simple answer is that a dental implant gives you a back tooth that chews like one again.

The more honest answer is that it depends on which molar is missing, what the bone underneath looks like, and whether that tooth needs replacing at all. Some do. Some can safely be left. This guide walks through how to tell the difference.

An implant replaces the root as well as the crown. The root is what lets a back tooth take a full bite.

Why do back teeth matter so much for chewing?

Your front teeth cut. Your molars grind.

The wide, ridged surfaces at the back of the mouth are where most food is actually broken down before you swallow. Lose one, and the remaining teeth have less surface to work with.

Research on chewing backs this up. In one study comparing natural teeth, dentures and overdentures, people with a shortened row of back teeth could still bite hard, but they chewed food less efficiently because they had less biting surface to work with (Fontijn-Tekamp et al., 2000). The same study found that bite force alone explained close to half of the differences in chewing efficiency between people.

The first molar matters most here. A review of the evidence on missing molars reports that having the first molars in contact supports roughly 90% of chewing efficiency (Greenstein et al., 2018).

That is why a missing first molar is usually felt straight away, while a missing tooth further back sometimes is not.

What happens if you don't replace a missing molar?

Three things tend to happen, slowly and quietly.

The bone shrinks. Once a tooth comes out, the ridge of bone that held it starts to narrow. A systematic review of studies on healing extraction sites found that most of the change happens in the first three to six months, with the width of the ridge shrinking by 29–63% over six to seven months (Tan et al., 2012). Less bone can mean a more involved implant later.

The opposing tooth can drift. A tooth with nothing to bite against can grow down or up into the gap. One review reports that about 20% of unopposed back teeth over-erupt by roughly 2 mm (Greenstein et al., 2018).

You chew differently. Most people move food to the other side. That works, but it puts the whole job on fewer teeth.

Here is the part many practices leave out: not every missing molar has to be replaced.

Adults who keep enough back teeth to chew with (a "shortened dental arch") reported a similar oral health-related quality of life to people with more teeth in one large study (Ferreira et al., 2019). The same research found the impact grew once people had fewer than 21 natural teeth. And the review on second molars concluded that replacing a missing second molar is often a matter of choice rather than necessity (Greenstein et al., 2018).

So the real question is not "Is a gap bad?" It is "Is this gap costing you chewing you want back?"

The Biggest Difference: An Implant Brings Back the Root, Not Just the Tooth

Every way of replacing a molar puts a tooth-shaped surface back in the gap. What differs is what holds it up.

A bridge hangs the new tooth from the teeth on either side, which have to be shaped down for crowns. A removable partial denture rests on the gum and clips onto neighboring teeth. An implant is a titanium post that fuses with the jawbone, so the crown on top is supported from below, by its own root.

That support is the whole point for a molar.

Molar implantA titanium post in the jawboneLeft untouchedDesigned to take a normal bite on its own rootSurgery and healing time; needs enough boneFixed bridgeThe teeth on either side of the gapShaped down for crownsFixed, but the load is shared by the supporting teethDepends on the health of the neighborsRemovable partial dentureThe gum, plus clasps on nearby teethClasped, not cutCan move under hard or chewy foodTaken out daily; less stableLeave the gapNothingMay drift or over-eruptChewing shifts to the other sideBone narrows over time

Long-term data on single implant crowns is strong. A systematic review of single crowns on implants found about 97.2% of implants still in place at five years and about 95.2% at ten (Jung et al., 2012). A separate ten-year review estimated implant survival at 96.4% (Howe et al., 2019).

The same single-crown review is just as clear that survival is not the same as trouble-free. Complications such as screw loosening and chipping of the porcelain were common enough over five years that maintenance belongs in the plan from day one (Jung et al., 2012).

Can you chew normally with a molar implant?

Once the implant has healed and the final crown is fitted, that is the aim.

The crown is shaped to meet the opposing tooth the way the original molar did, so both sides of your mouth share the work again. Most people stop thinking about which side they are chewing on.

There is a waiting period first. The implant needs time to fuse with the bone before it takes a full bite, and during that stage you eat more carefully on that side.

A molar implant also asks one thing of you: keep it clean. It cannot decay, but the gum and bone around it can still become inflamed, which we cover in the risks below.

What We Look at Before Recommending a Molar Implant

Two people missing the same molar can need very different treatment. Before anyone recommends an implant, these are the questions that decide it.

• Which molar is it? A missing first molar usually costs more chewing than a missing second or third molar, and the evidence on replacing second molars is genuinely mixed (Greenstein et al., 2018).
• How much bone is left? A cone-beam CT scan shows the height and width of the bone in 3D. Bone shrinks after an extraction (Tan et al., 2012), so the time since the tooth was lost matters.
• Is the sinus close? Upper molars sit under the sinus. If the bone is too thin, the sinus floor may need lifting before or during implant placement.
• What is the opposing tooth doing? If it has drifted into the gap, the bite may need adjusting first.
• How hard do you bite? Clenching or grinding changes how the crown is designed and whether a night guard is part of the plan.
• How healthy are your gums? Gum disease needs to be controlled before an implant goes in.
• Is the tooth still saveable? Sometimes a crown or root canal is the better answer, and an implant is not needed at all.

At our offices in McLean (Tysons Corner) and Alexandria, Northern Virginia, that assessment happens at a single consultation: an examination and a cone-beam scan, then the options for your case in writing. Where an implant is the right call, placement is planned on the scan and carried out through a printed surgical guide, and the crown is made in the in-house digital lab at either office. You can read more about how that works on our dental implants page and the surgical suites and lab.

A cone-beam scan shows the bone you actually have, which decides whether a molar implant can go straight in or needs groundwork first.

What are the risks and limits of molar implants?

Implants are reliable, but they are surgery, and the back of the mouth has its own challenges.

Sinus lifts add a step. When an upper molar implant needs a sinus floor elevation, results are still good, but not quite as good as in ample bone. A systematic review estimated about 90% implant survival three years after a lateral-window sinus lift, with the best-reported techniques reaching about 98% (Pjetursson et al., 2008).

The gum around an implant can become inflamed. Across studies, peri-implant mucositis (inflamed gum around an implant) and peri-implantitis (inflammation that also affects the bone) had weighted average prevalences of about 43% and 22% of patients (Derks & Tomasi, 2015). Those figures vary a lot between studies, but they explain why check-ups matter.

Cleaning access matters. In one study, implants that were hard to reach with a toothbrush or floss were far more often affected by peri-implantitis (Serino & Ström, 2009). A molar crown should be shaped so you can clean around it.

Parts can need attention. Screw loosening and chipped porcelain do happen over the years on single implant crowns (Jung et al., 2012).

It takes time. From extraction to final crown can take several months, longer if bone needs rebuilding first.

That is why the work here carries a five-year warranty, on the condition of a cleaning every six months: the cleanings are how small problems get caught early. If you are worried about the gum around an existing implant, this guide to spotting peri-implantitis covers the warning signs.

How much does a molar implant cost?

We do not publish a single price, because an honest one cannot exist before your scan.

The cost of a molar implant depends on whether the tooth still has to come out, whether bone grafting or a sinus lift is needed first, and the crown material. Those are the same factors listed on our implant cost page.

What you get at the consultation is a written price for each option for your case. Most dental PPO plans are accepted, the practice files claims on your behalf, and financing through CareCredit, Proceed Finance or LendingClub can spread the cost, with terms up to 96 months through Proceed Finance. Our guide to what dental insurance does and does not cover for implants explains how a plan usually treats a molar implant.

If you have already been quoted elsewhere, a second opinion on implant surgery is free.

Questions

Can a molar implant go in the same day the tooth comes out?

Sometimes. If the extraction leaves enough healthy bone and there is no active infection, an implant can occasionally be placed at the same visit. Molars have wide, multi-rooted sockets, so it is more often staged. Our guide to who qualifies for same-day implants explains the deciding factors.

Should I replace a missing wisdom tooth with an implant?

Almost never. Wisdom teeth are rarely needed for chewing, and most people do well without them. Implant planning focuses on the first and second molars.

If two molars are missing side by side, do I need two implants?

Not always. Depending on the bone and the bite, two missing molars may be replaced with two implants, or with one implant and a different design. The scan and your bite decide which is sounder.

Will a molar implant feel different from my other teeth?

It is designed to feel like a tooth once it has healed. An implant has no cushioning ligament around it the way a natural root does, so a very hard bite can feel slightly firmer than on your other teeth.

Can I get a molar implant if I grind my teeth at night?

Often, yes, but grinding changes the plan. The crown may be shaped and made differently, and a night guard is usually recommended to protect both the implant crown and your natural teeth.

Final Takeaways

• Molars do the grinding. Losing one, especially a first molar, reduces how efficiently you chew.
• A molar implant replaces the root as well as the crown, so the new tooth takes its own bite without relying on the teeth beside it.
• Single implant crowns have strong long-term survival, but maintenance is part of the deal.
• Not every missing molar needs replacing. Second and third molars are often optional.
• Bone shrinks after an extraction, so the timing of your decision matters.
• A cone-beam scan, not a web page, decides whether you are a candidate and what it costs.

If a missing back tooth has changed the way you eat, start with a real plan. A consultation at our McLean or Alexandria office includes the examination, a 3D scan and your options in writing, each with its price. Bring your insurance card, and any quote you already have.

Research References

1. Fontijn-Tekamp FA, Slagter AP, van der Bilt A, van 't Hof MA, Witter DJ, Kalk W, Jansen JA. Biting and chewing in overdentures, full dentures, and natural dentitions. Journal of Dental Research. 2000;79(7):1519–1524. https://pubmed.ncbi.nlm.nih.gov/11005738/
2. Greenstein G, Greenstein B, Carpentieri JR. The need to replace a missing second molar with a dental implant restoration: analysis of a controversial issue. Compendium of Continuing Education in Dentistry. 2018;39(10):686–693. https://pubmed.ncbi.nlm.nih.gov/30421938/
3. Tan WL, Wong TLT, Wong MCM, Lang NP. A systematic review of post-extractional alveolar hard and soft tissue dimensional changes in humans. Clinical Oral Implants Research. 2012;23(Suppl 5):1–21. https://pubmed.ncbi.nlm.nih.gov/22211303/
4. Ferreira RC, Kawachi I, Souza JGS, Campos FL, Chalub LLFH, Antunes JLF. Is reduced dentition with and without dental prosthesis associated with oral health-related quality of life? A cross-sectional study. Health and Quality of Life Outcomes. 2019;17(1):79. https://pubmed.ncbi.nlm.nih.gov/31053080/
5. Jung RE, Zembic A, Pjetursson BE, Zwahlen M, Thoma DS. Systematic review of the survival rate and the incidence of biological, technical, and aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow-up of 5 years. Clinical Oral Implants Research. 2012;23(Suppl 6):2–21. https://pubmed.ncbi.nlm.nih.gov/23062124/
6. Howe MS, Keys W, Richards D. Long-term (10-year) dental implant survival: a systematic review and sensitivity meta-analysis. Journal of Dentistry. 2019;84:9–21. https://pubmed.ncbi.nlm.nih.gov/30904559/
7. Pjetursson BE, Tan WC, Zwahlen M, Lang NP. A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation. Journal of Clinical Periodontology. 2008;35(8 Suppl):216–240. https://pubmed.ncbi.nlm.nih.gov/18724852/
8. Derks J, Tomasi C. Peri-implant health and disease. A systematic review of current epidemiology. Journal of Clinical Periodontology. 2015;42(Suppl 16):S158–S171. https://pubmed.ncbi.nlm.nih.gov/25495683/
9. Serino G, Ström C. Peri-implantitis in partially edentulous patients: association with inadequate plaque control. Clinical Oral Implants Research. 2009;20(2):169–174. https://pubmed.ncbi.nlm.nih.gov/19077152/