“Can I still wait a while before having an implant?” — this question sometimes comes up in the surgery a few weeks after a tooth has been removed. The wound has healed, nothing hurts, a gap in the posterior segment does not catch the eye. The answer that genuinely helps the patient is neither “yes” nor “no”. The truth is this: waiting is not a neutral state, because during that time the bone changes. Loss of bone in the upper and lower jaw after tooth loss is a predictable process that is uneven over time — most of it happens at the beginning, before the patient has had time to decide anything.
The short answer is this: the bone of the alveolar ridge is maintained because it transmits chewing forces from the root of the tooth; once the tooth is gone it no longer performs that function and gradually diminishes — fastest in the first six months after extraction, more slowly later on, but without stopping completely. Put simply: jawbone loss, that is alveolar ridge resorption, is the gradual reduction in the height and width of the bone in which the tooth was seated.
This is not urgency in the sense of a threat to health. The point is that the same decision taken today and taken in five years’ time relates, in practice, to two different clinical situations.
Jawbone loss begins where the function of the tooth ends
The bone in which the teeth are seated is the alveolar ridge of the maxilla and the corresponding alveolar part of the mandible — a structure containing the sockets, that is the chambers for the roots. For simplicity, in the remainder of this text we use the term “alveolar ridge” for both bones. It is a specialised structure: it develops together with the erupting teeth and exists in order to hold them. It is not a permanent scaffold of the face like the body of the mandible — it is a superstructure that came into being for a specific task.
A tooth does not sit rigidly in bone like a peg in a wall. It is connected to it by the periodontal ligament — a thin layer of tissue that transmits chewing forces from the root to the surrounding bone. Bone remodels continuously: some cells break it down, others rebuild it, and the load transmitted by the tooth tips that balance towards maintaining the structure.
When a tooth is removed, both the root and the periodontal ligament disappear. The socket heals and fills with bone tissue, but the walls that surrounded it — particularly the thin plate on the cheek or lip side — lose their task and part of their blood supply. This is neither a disease nor a complication of treatment, but a response to the absence of function: the body does not maintain a structure that has ceased to be used.
The picture of “simply an absence of loading” is, however, a simplification. A review article from 2023 indicates that cellular processes taking place at the boundary between bone and mucous membrane are also involved in resorption of the ridge. This remains an area of active research — the mechanism is well described, but not fully explained.
Finally, a terminological distinction. Resorption (the gradual loss of tissue) affects both bone and the hard tissues of the tooth itself. This article concerns only the bone of the alveolar ridge; resorption of the tooth tissues, which has different causes and different treatment, is covered in a separate article on tooth tissue resorption and its causes.
“It’s only a tooth at the back, nobody can see it”
The most common reason for postponing the decision sounds reasonable: the missing tooth is in the posterior segment and it does not show in the smile. Bone, however, does not distinguish between visible and invisible teeth — it recedes everywhere it has stopped working.
On top of this, something happens in the neighbourhood of the gap. Teeth do not stand motionless in the arch: those adjacent to the gap may tilt towards it over time, while the opposing tooth, having lost its partner in occlusion, may gradually over-erupt from its socket. The scale of these changes varies. In studies of teeth without an antagonist, some over-eruption was found in the great majority of those examined, but over-eruption exceeding two millimetres in roughly one such tooth in four. The change therefore occurs often, though rarely to a degree that hampers later treatment. The gap appears to “close”, while in reality the position of several teeth and the way they meet have changed — which can complicate a later restoration.
An invisible gap is therefore not free of charge. Its cost is deferred and spread across the neighbouring teeth.
The timeline of resorption — why the first months weigh the most
The most important practical information concerns the rate — the loss is not spread evenly. A systematic review from 2012, covering studies of undisturbed socket healing, summarised it unambiguously: the loss of ridge width reaches about one third after three months and from one third to almost two thirds after six months, while the loss of height ranges from one tenth to one fifth. The fastest changes occur within the first three to six months; after that the process slows down.
The scale of these changes is shown by a meta-analysis from 2021 summarising studies of sockets left to heal on their own, that is without procedures preserving the dimensions of the bone. In radiographic measurements, at the sites of anterior and premolar teeth, ridge width decreased on average by about 2.5 mm and its height on the cheek side by about 1.7 mm. After molars the loss of width was greater — on average about 3.6 mm.
Later the rate falls, but the counter does not stop at zero. A systematic review from 2021, which brought together the results of long-term studies of resorption of the posterior part of the ridge in the mandible, shows that the process continues over subsequent years of denture wear, and that its rate depends, among other things, on the type of restoration and the frequency of relines.
| Time window | What happens to the bone | What this means for the treatment plan |
| The first 3–6 months after extraction | The greatest part of the loss of ridge width and height occurs | The period with the greatest influence on future bone conditions |
| By the end of the first year | Smaller but still marked changes; the shape of the ridge becomes established | Usually still good conditions for implant placement without extensive procedures |
| Subsequent years | Slow but progressive loss of ridge height | An increasing likelihood that prior bone reconstruction will be needed |
| Many years of edentulism | A flattened ridge, closer to anatomical structures | The range of possible solutions narrows; planning becomes more complex |
In the practice of Modern Dental & Orthodontics (Klinika MDO) it is repeatedly confirmed that the conversation about the timing of implant treatment concerns not so much medical urgency as which options will still be available in a few years’ time.
How to recognise jawbone loss in yourself
The process itself produces no symptoms — its effects are what get noticed, usually indirectly. A few signals are worth paying attention to:
- a denture that used to sit well begins to move or needs relining more often;
- rubbed and painful areas appear under the denture where there were none before;
- the cheek or lip on the side of the missing teeth seems more sunken than on the other side;
- a tooth next to the gap has clearly tilted, and the gap looks narrower than it did just after the extraction;
- the sound of certain speech sounds has changed.
None of these signals is a diagnosis — they say only that it is worth assessing the state of the bone. Self-assessment does not replace proper diagnosis: an examination by a clinician is needed and, when an implant is being planned, imaging as well.
What bone loss does to the face
The alveolar ridge maintains the height of the lower third of the face and supports the lips and cheeks from within. As it recedes, the geometry of the whole lower part of the face changes — and because this happens over years, patients rarely connect the two.
The order of the changes is often repeatable. First the support of the upper lip decreases: the vermilion appears narrower and the lip more sunken. The folds running from the sides of the nose to the corners of the mouth deepen. As the occlusal height decreases, the distance between the nose and the chin shortens, so that the chin appears more prominent and the corners of the mouth turn down.
These changes can be measured — and partly reversed. In a 2020 study the faces of edentulous patients were measured by three-dimensional stereophotogrammetry before and after treatment with a complete denture. The restoration increased the height of the lower third of the face, and facial proportions and the nasolabial angle moved closer to typical values. The group was small, so this is an indication rather than a settled conclusion.
It is worth describing this without dramatising. Loss of bone in the upper and lower jaw is not “accelerated ageing”, nor a defect requiring urgent repair for aesthetic reasons — it is an anatomical change with a specific cause, which can be planned for and compensated. What does matter is that the later it is addressed, the more there is to rebuild.
Chewing, diet and speech — the consequences that are discussed less often
Loss of bone in the upper and lower jaw also changes the mechanical conditions in the mouth. The smaller the surface on which a denture rests, the harder it is to keep it in place while biting. The effect builds gradually: first foods that have to be bitten into disappear from the menu, then hard vegetables and fruit, meat in a piece, bread with a crisp crust.
This is not merely an observation from the surgery. A 2025 meta-analysis comparing edentulous patients with an atrophic and with a preserved mandible showed that, with a complete denture, people with a more resorbed ridge break food down less well and generate a lower bite force. In the same studies, however, subjectively assessed quality of life was comparable in both groups — measurable function and one’s own assessment of comfort do not always go together.
This change is rarely a conscious one. The patient does not say “I have stopped eating raw vegetables”, but “somehow I have gone off them”. The diet shifts towards soft foods that are lower in fibre — and in older people, in whom an adequate intake of protein and micronutrients is difficult anyway, this matters for general health.
The second area is speech. The front teeth and the support of the lip take part in producing many speech sounds; where teeth are missing extensively, speech can be less clear, and a denture that shifts adds an element of uncertainty — one more often described by patients as withdrawing from conversation at the table than as a problem with speech.
Why a tissue-borne denture does not stop resorption
This is one of the most common misunderstandings: if a denture “loads” the bone, it ought to maintain it. The mechanics, however, work differently here.
A natural tooth transmits chewing force through the root and the periodontal ligament directly into the interior of the bone. A tissue-borne denture — that is, one resting on the gum and the bony base — transmits it through the mucous membrane. This is a different kind of stimulus: diffuse, superficial and combined with pressure. Instead of the signal “this bone is being used”, chronic pressure is created on the tissue covering the bone.
A case-control study from 2020, comparing edentulous people who had worn complete dentures for more than five years with edentulous people who did not wear dentures, found markedly greater ridge resorption in the denture wearers — both in the upper and in the lower jaw. Severe resorption occurred almost exclusively in the denture-wearing group. This is not an argument against dentures — for many patients they are the appropriate and necessary solution. It is an argument for not counting on a tissue-borne denture to stop bone loss in the upper or lower jaw.
It is different when loading returns to the interior of the bone. An implant integrated with bone takes over the chewing forces and transmits them directly into the bone tissue — at the site where it is located. Hence an important limitation of this benefit: an implant protects bone locally, around itself, and not throughout the arch. This is well illustrated by the 2021 review mentioned above — the rate of resorption of the posterior part of the mandibular ridge, that is the area lying beyond the implants, did not differ appreciably between a complete denture and a denture supported on two implants. We discuss the comparison of dentures and implants as two treatment routes separately, in the article on choosing between a denture and implants.
What you can influence and what you cannot
For patients, this distinction is often the most relieving.
The mechanism itself is beyond your influence — loss of bone in the upper and lower jaw after tooth loss is physiology, not the result of neglect. The 2021 review devoted to resorption of the posterior part of the ridge in the mandible also indicates that the rate of this process is influenced by individual factors, including sex.
You do, however, have influence over three things of real importance. The first is the moment of the decision — the factor that matters most for how this timeline will look. The second is regular denture check-ups and having relines carried out when they are recommended. The third is keeping the teeth you still have — every further tooth lost opens up another area of resorption.
On the second point it is worth marking the limit of what is known. The 2021 review mentioned above listed the frequency of relines among the factors clearly associated with the rate of resorption, but did not settle whether relining inhibits the process or merely reflects it.
A separate but important matter: if you take medicines that affect bone or clotting — in particular bisphosphonates, denosumab and other antiresorptive drugs, antiangiogenic drugs and targeted therapies used in oncology, as well as anticoagulant and antiplatelet drugs — report this before any procedure is planned. This has a direct bearing on the safety of treatment — we discuss the risk associated with these medicines in more detail in a separate article on osteonecrosis of the jaw (MRONJ).
What not to do: glue or “adjust” a denture yourself at home. A poorly fitting denture presses on the underlying tissue at single points and needs to be corrected at the practice.
The degree of jawbone loss and the solutions available
The table below does not compare methods in terms of quality — it shows what is usually still an option at a given stage, and what starts to become difficult or unavailable.
| State of the bone | What usually remains available | What starts to become difficult or impossible |
| Bone preserved (early period after the loss of a tooth or teeth) | The full range of options appropriate to the extent of the missing teeth — from a single implant for one gap through to a fixed full-arch restoration on implants, or a denture in edentulism | — |
| Moderate resorption | Implant placement usually possible, sometimes after local bone reconstruction; an implant-supported denture; a complete denture | Implant placement without preparatory procedures may no longer be feasible |
| Advanced resorption | Implant placement preceded by augmentation; an implant-supported denture; a complete denture | A fixed full-arch restoration on implants without prior preparation of the bone |
| Very advanced resorption / many years of edentulism | A complete denture; in the upper jaw, among others, the zygomatic protocol (implants anchored in the zygomatic bone); in the lower jaw the approach is selected individually | Conventional implant placement in the ridge |
The table shows one regularity: the number of available options does not grow with time. It diminishes — slowly, but in one direction only.
How the clinician checks how much bone is left
The answer to the question “how much bone do I still have” is not arrived at by looking.
It starts with the history and an intra-oral examination — assessing the shape of the ridge, the state of the mucous membrane and how well the existing denture holds. A panoramic radiograph gives an overview of the whole arch, but it is a flat image.
The decisive investigation is cone-beam computed tomography (CBCT). It shows not only the height but also the width of the bone at a specific site, together with the position of the structures that must be avoided: the inferior alveolar nerve in the mandible and the maxillary sinus in the upper jaw. Only on this basis is it possible to say whether an implant will fit without preparation of the bone.
The practical conclusion: the question “can an implant be done in my case” only makes sense after imaging — answers given earlier are estimates, not a plan.
What can be done at each stage — and what can no longer be done
Immediately after the tooth is removed. This is the moment with the greatest leverage. There are procedures performed directly after extraction whose aim is to preserve the dimensions of the socket — they limit the loss, though they do not eliminate it. In selected situations an implant can be placed on the day the tooth is removed; we describe the conditions in the article on immediate implants.
During the first year. Conditions are usually still good — this is the simplest moment for implant placement, with the smallest range of additional procedures. Assessment of bone conditions is a standard element of implant treatment.
After a few years. The bone may be narrower or lower than the implant requires. Bone reconstruction is then possible and is carried out routinely — we discuss its types separately, in the article on bone augmentation before an implant. Treatment is extended by a preparatory stage.
With many years of edentulism. It is usually still possible to propose something, but the plan more often requires preparatory procedures. This does not mean it is too late — it means the route is longer.
What cannot be done? Bone that has been lost does not rebuild itself — neither under a denture nor without one.
From the perspective of the clinical team at Modern Dental & Orthodontics (Klinika MDO), what matters is that the question “can I wait” is worth replacing with the question “what will change if I wait” — because only the second can be answered specifically.
What to establish at the consultation — a checklist
A few points worth taking to the appointment — they help you leave the surgery with a plan rather than a general impression.
☐ How much bone is left at the site of the gap — in millimetres, not as a descriptive assessment.
☐ Whether implant placement is possible without preparation of the bone, or only with it.
☐ How that answer will change if I wait a year, two years or five.
☐ How many stages the proposed plan involves and how long each of them takes.
☐ Whether, when the next tooth is removed, a procedure preserving the dimensions of the socket is indicated.
☐ What will happen to the neighbouring teeth if the gap is left unrestored.
☐ Which medicines and general medical conditions may affect the plan — with a list prepared before the appointment.
☐ When to schedule the next review if I am deliberately postponing the decision.
The last point is often the most important: deliberately postponing a decision with an agreed review date is something quite different from postponing it indefinitely.
Frequently asked questions
Why does bone resorb after tooth loss?
The bone of the alveolar ridge exists in order to hold teeth. Chewing forces transmitted through the root and the periodontal ligament are the signal to it that it is being used. Once the tooth is gone the stimulus disappears, and the balance of bone remodelling shifts towards loss. This is a response to the absence of function, not a disease.
How quickly does bone resorb after a tooth is removed?
Most of it happens in the first six months. Where healing takes place without procedures preserving the dimensions of the socket, ridge width decreases on average by about 2.5 mm in the anterior and premolar segment and by about 3.6 mm after molars. The rate then falls, but the process continues.
Does the loss of teeth change facial features?
Yes, though gradually and over years. As the alveolar ridge recedes it stops supporting the lips and cheeks. The lower third of the face shortens, the folds beside the nose deepen and the chin appears more prominent. The scale of the changes depends on the extent of the missing teeth and on the degree of bone loss.
Does a denture stop bone loss?
No. A tissue-borne denture transmits pressure to the bone through the mucous membrane rather than through the interior of the bone tissue, so it does not replace the stimulus previously provided by the root of the tooth. A study comparing edentulous people who did and did not wear dentures even found markedly greater ridge resorption in the denture wearers.
Can lost bone be rebuilt?
Yes, bone reconstruction is a routinely performed procedure and in many situations it makes it possible to place an implant where this would otherwise be impossible. The extent of the procedure depends on how much bone has been lost and in which dimension. We discuss the details in a separate article on bone augmentation.
Are implants still possible after many years of edentulism?
Often yes, although the treatment plan is then more complex and longer. With very advanced resorption, solutions with anchorage outside the alveolar ridge are used, or treatment preceded by bone reconstruction. What is possible is determined by imaging and by assessment of local conditions, not by the mere passage of time since the teeth were lost.
Does bone loss hurt?
No. Loss of bone in the upper and lower jaw proceeds without symptoms and is therefore often noticed only after years — most often when a denture stops holding, or when implant treatment is being planned. Pain in the area of an edentulous ridge usually has another cause and needs to be assessed at the practice.
Is it worth placing an implant straight after a tooth is removed?
In selected situations this is possible and shortens treatment, but it is not a universal approach. The decision depends among other things on the state of the tissues around the socket, the absence of active infection and the thickness of the bony walls. Suitability is assessed individually, on the basis of examination and imaging.
Summary
The bone of the alveolar ridge exists in order to hold teeth. Once a tooth is gone it loses its task and gradually recedes — fastest in the first six months, more slowly afterwards, but without stopping completely. Facial proportions change, as do the conditions for a denture and the comfort of chewing and speech. A tissue-borne denture does not stop this, and an implant protects bone only locally. That is why the question “can I still wait” is best replaced with a question about which solutions will remain available later. If your denture has begun to move, or you have had an unrestored gap for years, this is a good moment to ask about the state of your bone — even if nothing hurts.
Read more:
- Implantology at Modern Dental & Orthodontics (Klinika MDO) — scope and course of treatment
- Bone augmentation before an implant — when is it necessary and what types are available?
- Denture or implants — what to choose when teeth are missing
- Implant-supported denture (overdenture) — who this solution is for
- Immediate dental implant — when can it be placed on the day of tooth extraction?
Content and liability disclaimer
This article is informational and educational in nature and does not constitute medical advice, a diagnosis or a therapeutic recommendation — it does not replace a consultation with a specialist. If you are experiencing symptoms, have doubts or are facing a decision about treatment, consult a dentist. The methods described and the data cited are general in nature. The results of scientific studies relate to populations, not to an individual patient. The course and outcome of therapy depend on the individual clinical situation and may vary between patients. No information contained in this article constitutes a guarantee of result. The content has been prepared with due care, based on publicly available medical knowledge and the scientific publications indicated in the Sources section. We do not advise taking or refraining from any health-related action solely on the basis of the content of this article, without prior consultation with a doctor.
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