What Happens to Jawbone After Losing a Tooth?
Updated: Sep 29
When you lose a tooth, the changes don’t stop at your smile, chewing or bite. The jawbone that once held the tooth can also start to shrink.
Your body is constantly breaking down old bones and forming new ones. After tooth loss, the loss of stimulation from the tooth root can change this balance. As time passes, the bone in the area may gradually be resorbed.
It can affect the surrounding gums, neighbouring teeth, facial support, and some tooth-replacement options.
For example, if you are considering a dental implant, the dentist will need enough healthy bone to support it. If the bone has become too thin or low, your dentist might recommend additional treatment before an implant can be placed safely.
According to Government of Canada data from 2022–2024, about 3% of Canadians aged 20- 79 had lost all of their natural teeth. This form of complete tooth loss, known as edentulism, remains an important oral-health concern among adults.
You may not notice jawbone changes right away after losing a tooth. However, understanding how tooth loss can affect the jawbone can help you recognise changes early and make informed decisions about tooth replacement and your long-term oral health.
What Happens to Jawbone?
Your teeth are not simply sitting on top of your jawbone. The jawbone consists of two main parts: the basal bone (the deep, foundational body of the jaw) and the alveolar bone (the ridge of bone that surrounds and supports the roots of your teeth).
Each natural tooth sits in a socket within the alveolar bone, which surrounds and supports its root.
When you bite and chew, pressure travels from the tooth root into the surrounding bone. This helps tell your body that the bone is still needed. Your body responds to forces through a continuous process called bone remodelling.
Once the tooth is gone, that stimulation is gone too.
And, without the same mechanical stimulation, the bone in that area can gradually resorb.
Over time, the bone around the empty socket can become thinner and shorter.
Simple Terms
Tooth present → root stimulates surrounding bone → bone is maintained
Tooth lost → root stimulation is gone → surrounding bone slowly resorbs
Note: This does not mean that your entire jaw suddenly starts disappearing. The change is usually localized to the area around the missing tooth.
How Quickly Does Jawbone Loss Happen After Tooth Loss?
There is no single timeline that applies to everyone because the rate and extent of bone resorption can vary depending on factors such as:
Which tooth was lost
The condition of the local bone tissue and gums
Whether the tooth was removed because of gum disease, infection or trauma
The shape and size of the original tooth socket
Your general health
Smoking habits
Oral hygiene
Whether the socket was preserved after extraction
Whether the missing tooth is eventually replaced
Timeline | What Happens? |
First few days | A blood clot forms and supports healing. The body then begins replacing it with tissue repair and new bone. |
First few weeks | Soft-tissue covers the socket and new-bone develops underneath. |
First few months | The alveolar ridge changes over the healing period in shape and volume as it remodels. |
Months to years | Bone resorption can continue, potentially reducing the ridge’s width and volume. |
Important: There is no reliable “one-size-fits-all” percentage of bone loss that applies to every patient because jawbone loss after tooth loss varies.
Why Does Jawbone Shrink?
Your jawbone isn’t quite like the bones in your arms or legs.
Jawbone is living tissue, not a fixed structure. It constantly undergoes remodelling, where old bone is broken down and new bone is formed.
It responds to the pressure and stimulation created by your present natural teeth. Bite and chew forces are transmitted through its root and supporting tissues.
Once that root is gone, the mechanical environment changes.
The body gradually remodels the bone that previously supported its root because natural teeth are no longer being used. Over time, the alveolar ridge may become
Narrower
Shorter
Flatter
Less dense in certain areas
Without the tooth and its root, your jaw no longer gets the same pressure it used to. As a result, the body may slowly reduce the amount of bone in that area.
It can reduce the height and width of the jaw ridge in the long term.
This process is known as disuse-related alveolar bone resorption.
Note: Tooth loss is not the only cause of jawbone loss.
Causes Bone Loss in the Jaw
If you have lost a tooth because of advanced gum disease, some of the supporting bone may already have been damaged before the tooth was removed. Periodontitis can damage the bone around the tooth before extraction.
Common contributors to dental bone loss include:
1. Periodontal disease
Periodontitis is a serious gum infection that causes long-lasting inflammation around the teeth. With continued bone remodelling, this inflammation can damage gums, periodontal ligament, and alveolar bone that anchor the teeth. If left untreated, teeth can become loose and supporting bone can be lost.
2. Missing teeth
After a tooth is lost, the surrounding alveolar bone no longer receives the same stimulation from the natural tooth root. With less chewing or biting, the body may gradually remodel and resorb some of that bone in the area. This can contribute to progressive ridge resorption.
3. Dental infection
An untreated infection around a tooth can trigger inflammation that spreads into the surrounding tissue. As the condition progresses, it can damage the bone supporting the tooth. Treating the infection early and preserving as much healthy bone as possible can help to maintain jaw structure and support neighbouring teeth.
4. Trauma
A facial injury or traumatic tooth loss can damage both the tooth and the supporting bone because a strong impact may injure the tissue and supporting bone. Depending on the severity of the trauma, the alveolar bone can become fractured, damaged, or lost along with the tooth.
5. Other health factors
Certain medical conditions, medications, ageing, and lifestyle factors can influence bone health.
This is one reason your dentist may ask about your overall health and medications when assessing missing teeth or planning a dental implant.
Important: Early jaw bone loss is often invisible and painless. However, you should not assume that everything is fine. You may not notice bone loss at first. Over time, though, you might notice a change in the shape of your gums, nearby teeth shifting, trouble chewing, or dentures feeling loose. These signs can have other causes, so proper dental examination and CBCT are needed to confirm bone loss.
Can Losing One Tooth Affect Other Teeth?
It can.
A missing tooth leaves a gap, and the teeth around it may slowly start to move. With time, nearby teeth may shift or tilt toward that space, while the opposing tooth can also move into the gap because normal biting contact is gone. This is called supraeruption.
For example, a missing molar can make chewing on that side less comfortable. You may start relying more on the opposite side, which can change your pattern. Food can also become trapped in the gap.
The changes in tooth position can affect how your upper and lower teeth meet.
Note: The impact varies depending on the missing tooth’s location, the condition of your remaining teeth, and your bite. That's why dental professionals consider the whole mouth, rather than treating a missing tooth as an isolated cosmetic concern.
Other Side Effects of Jawbone Loss
Jawbone loss can affect more than just your smile. It may lead to:
Changes in Facial Shape
Your jawbone helps support the lower part of your face. If the bone shrinks significantly, the cheeks and lips may lose some of that support. Sometimes, the face may appear more sunken, which can contribute to wrinkles and changes associated with premature ageing.
Shifting of Remaining Teeth
Teeth naturally support each other for stability. When a tooth is removed or lost, the neighbouring teeth begin to tilt, drift, or tip, creating areas where food and plaque can collect more easily.
The tooth directly opposite the gap may also move further out of its socket because it no longer has a tooth to bite against. This structural shifting alters your entire bite alignment and increases the risk of gum problems, tooth decay, uneven wear, and bite problems.
Reduced Chewing Ability
Each tooth has a specific role in breaking down food. When a tooth is lost, the remaining teeth may handle more of the chewing force. For example, front teeth (incisors) help bite and cut food, while premolars and molars help crush and grind it.
Less Stable Dentures
As the bone changes, the ridge that supports your dentures can also become smaller or flatter. Because dentures are designed to fit over this ridge, they may no longer sit as snugly as they once did. As a result, your dentures may start to move or slip when you eat, talk or laugh.
A poor fit can also create areas of increased pressure, causing gum soreness, irritation, or difficulty eating.
Challenges with dental implants
A dental implant needs enough healthy jawbone to stay securely in place. After tooth loss, the surrounding alveolar bone can gradually resorb, leaving less bone available for implant placement. If the bone has become too thin or short, there may not be enough support to place the implant in the planned position.
In such cases, a dentist or oral surgeon can recommend bone grafting to add bone during treatment.
Increased Risk of Further Tooth Loss
Changes in tooth position and bite can place additional force on remaining teeth. As time passes, this uneven pressure can contribute to tooth wear, sensitivity, small cracks, mobility, or discomfort when chewing.
Jaw Pain and TMJ Problems
When your teeth shift and your bite alignment changes, it can alter how the jaw muscles and temporomandibular joints (TMJ) work during chewing. These changes can put extra pressure on jaw muscles and joints.
You may also notice chronic headaches, jaw clicking or popping, difficulty opening the mouth, or pain that spreads toward the ear, face, or neck.
Does Jawbone Grow Back After Tooth Loss?
So, can the bone grow back? The answer is a little more complicated.
Your body can form new bone during the recovery process after an extraction because the body naturally tries to repair or fill that area. However, the healed area may not return to recreate the original size and shape of the jawbone because natural teeth are not present to provide stimulation.
If a patient has already experienced significant bone loss, a dentist or dental specialist can recommend a procedure to rebuild or preserve the area. Bone grafting is one approach, although it depends on your individual bone volume, the location of the missing tooth and the type of restoration being considered.
The CDA notes that people with insufficient jawbone may sometimes require bone grafting before or as part of dental implant treatment.
Can You Prevent Jawbone Loss After Tooth Extraction?
You cannot necessarily stop the jawbone from changing after losing a tooth. Some remodelling is a normal part of the repair process. However, your dentist may suggest socket preservation when appropriate to protect the bone and limit how much it shrinks.
What Is Socket Preservation?
Socket preservation is performed after a tooth is extracted.
A dentist or oral surgeon places a grafting material into the empty socket to help preserve the shape and volume of the ridge as it heals.
Socket preservation cannot stop bone loss completely. Instead, it can help limit how much the bone changes as the area heals.
It aims to help limit changes such as bone shrinkage, narrowing of the jaw ridge, and changes in the shape of the extraction site. Socket preservation helps maintain the shape and volume of the area, which makes future implant treatment easier.
Note: Your dentist can determine whether socket preservation is appropriate for you.
What Happens If You Leave a Missing Tooth for Years?
Having a missing tooth for several years does not necessarily mean you cannot replace it.
However, the bone gradually shrinks and surrounding teeth may shift into the space as bone formation progresses.
If significant bone resorption occurs, there may be less healthy bone available for supporting a dental implant in the desired position.
In some cases, additional procedures such as bone grafting may be considered for implant replacement.
A systematic review on bone augmentation found that bone resorption following tooth loss can make an implant more challenging by reducing the available bone height and width, limiting ideal positioning, or leaving the implant too close to structures such as nerves or the sinus and may increase the need for augmentation procedures.
That does not mean everyone who waits will need a bone graft.
Some people still have enough bone for implant placement even after years without a tooth.
Note: A dental examination and appropriate imaging are the only reliable ways to determine what your jawbone looks like.
Bone Loss Treatment Options
If you lose a tooth, there are several ways to replace it.
However, the appropriate option depends on your oral health, age, location of the missing teeth, your bite and personal preferences:
Option | What It Is | How It Works | Lifespan | Benefits | Considerations |
Dental Implant | Artificial tooth root with a crown | Implant is placed in the jawbone and supports a crown | 10-15+ years | Natural-looking, stable, supports jawbone | Surgery, healing time, higher cost |
Dental Bridge | False tooth supported by nearby teeth | Crowns on nearby teeth hold the replacement tooth | 5-15 years | Fixed, restores chewing and appearance | May require reshaping nearby teeth |
Partial Denture | Removable replacement for some teeth | Replacement teeth sit on a gum-coloured base | 5-10 years | Affordable, non-surgical | Can move; needs cleaning |
Full Denture | Removable replacement for all teeth | Rests over the gums for support | 5-10 years | Replaces an entire arch, non-surgical | May move; needs adjustments |
Implant-Supported Bridge | Bridge anchored by implants | Implants support multiple replacement teeth | 10-15+years | Stable, replaces several teeth | Surgery and higher cost |
Implant-Supported Denture | Denture secured by implants | Implants anchor the denture in place | 10+ Years | More stable, better chewing | Surgery and maintenance needed |
Can Dental Implants Help Preserve Jawbone?
Dental implants differ from conventional tooth replacements because they replace the missing tooth root. Once the implant integrates with the jawbone, it can provide functional stimulation to the remaining bone.
Dental Implant Process:
Examination and consultation: Dental professionals discuss your goals first. Dr Maleki and her team examine your teeth, gums, bite, missing-tooth area and available bone using CBCT.
Prepare the area: If necessary, tooth extraction, bone grafting, or another dental treatment may be completed by the team before implant placement.
Plan the implant placement: Dr Maleki and her team use the examination and CBCT imaging information to plan where and how the implant will be placed.
Place the implant: The implant is surgically placed into the jawbone under local anaesthesia to keep you comfortable during the procedure.
Allow time to heal: The implant needs time to heal and integrate with the jawbone around the missing tooth before the final restoration is attached.
Attach the replacement tooth: Once healing is adequate, a crown, bridge, or denture is attached according to the treatment plan.
Maintain the implant: The team will provide aftercare instructions for your specific procedure. If you experience significant or persistent pain, swelling, bleeding, or other concerns after treatment, contact Sullivan Dentistry in Scarborough.
What If You Already Have Jawbone Loss?
A dentist, periodontist or oral and maxillofacial surgeon team in Scarborough can assess your bone and discuss appropriate options that are suitable for your situation.
Treatment may involve:
Bone grafting: A bone graft adds graft material to an area where more bone volume is needed. It will help to create a suitable foundation for future dental treatment.
Guided bone regeneration: This technique uses bone-grafting material and a barrier membrane to encourage new bone formation in the area of the jaw where bone has been lost.
Sinus augmentation: Missing upper back teeth can limit bone between the gum ridge and the maxillary sinus. Dentists may suggest sinus augmentation sometimes to increase the available bone height for an implant.
Implant placement after healing: In some cases like where bone is lost by gum disease, a dentist may recommend rebuilding the bone first, recommending rebuilding the bone first and allowing it to heal before placing the implant.
How Does a Dentist Check for Jawbone Loss?
You cannot accurately measure jawbone loss by looking at your gums.
At Sullivan Dentistry, Dr Sepideh Maleki and her team use several methods:
Method | What It Checks |
Dental examination | Gums, teeth and missing-tooth area |
Dental X-rays | Bone condition and surrounding structures |
CBCT scan | Bone height, width and nearby nerves or sinuses |
Can You Strengthen Your Jawbone Naturally?
Your healthy habits can support overall oral and bone health, but there is no home remedy that can recreate a missing tooth root or rebuild jawbone.
Instead, focus on protecting the teeth and bones you still have.
Brush twice daily with fluoride toothpaste.
Clean between your teeth every day to remove plaque and food particles.
Attend regular dental checkups.
Treat gum disease promptly.
Avoid smoking and tobacco products.
Follow your dentist's instructions after an extraction.
Eat a balanced diet that supports overall health.
Discuss tooth replacement options with your dentist.
However, these habits can not replace professional treatment.
Your Smile Deserves a Strong Foundation
Keep your smile strong by paying attention to what’s happening beneath the surface.
Rather than recommending the same treatment for everyone, at Dentistry at Sullivan in Scarborough, Dr Sepideh Maleki and our team consider your gum health, available jawbone, remaining teeth, bite, overall health, and tooth-replacement goals to help determine the options right for you.
Book a consultation today to learn what may work for your smile.
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