All-on-Four Treatment: change your life in one day

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all-on-four treatment

All-on-four treatment is a full-arch dental implant technique that replaces all the teeth in one jaw using just four implants — with fixed provisional teeth fitted on the same day as surgery. Unlike removable dentures, All-on-four provides a permanent fixed result that functions like natural teeth from the moment the patient leaves the clinic.

Patients who have spent years managing unstable dentures, covering their mouth when they smile, or avoiding certain foods understand exactly what is at stake. All-on-four resolves all of these problems in a single surgical session. The technique uses angled posterior implants to maximise contact with available bone, which means most patients can receive fixed teeth without the need for bone grafting — significantly reducing cost, recovery time and complexity.

At Asensio Advanced Dentistry in Valencia, All-on-four treatment has been performed for over 20 years under the direction of Dr. Lucía Asensio Romero, a specialist in implantology and oral surgery. The clinic uses exclusively Nobel Biocare and Klockner implants and backs every case with a lifetime guarantee on materials. For pricing and a full overview of the treatment, see our All-on-4 dental implants abroad page.

How All-on-four treatment works

The All-on-four technique places two vertical implants at the front of the jaw and two implants angled at 45 degrees at the back. The angled design maximises the use of available bone and avoids anatomical structures such as the maxillary sinus or the mandibular nerve. This allows for immediate stability strong enough to support a fixed prosthesis on the same day.

The entire process — extractions of any remaining teeth, placement of four implants, and fitting of the fixed provisional prosthesis — is carried out in a single extended surgical session. Patients arrive in the morning and leave in the afternoon with a complete set of fixed teeth. The provisional prosthesis is worn while the implants integrate with the bone over a period of three to six months, after which the definitive restoration is fitted at a second visit.

Stage What happens Where
Free consultation OPG X-ray, 3D CT scan, treatment plan Valencia — or remote preliminary assessment
Surgery day Extractions, 4 implants, same-day fixed teeth Valencia
Osseointegration 3–6 months healing with provisional teeth At home in the UK
Final prosthesis Definitive restoration fitted Valencia

All-on-four vs removable dentures: the key differences

Many patients arrive at Asensio having previously been treated with removable dentures and are clear about what they want to change. All-on-four addresses every major limitation of conventional removable prostheses — stability, aesthetics, comfort and bone preservation.

Factor Removable denture All-on-four
Stability Can move when eating or speaking Fixed, does not move
Bone preservation Bone continues to resorb without stimulation Implants stimulate bone and prevent resorption
Daily maintenance Must be removed to clean Cleaned in place like natural teeth
Longevity Requires regular replacement Implants with lifetime guarantee on materials

The cost of All-on-four at Asensio is £6,480 per arch — significantly less than equivalent treatment in the UK. View the full price breakdown on our prices page.

Related guides

Frequently asked questions about All-on-four treatment

Can I have All-on-four treatment if I have been told I have little bone?

In most cases yes. The angled implants used in All-on-four are specifically designed to maximise available bone and avoid the need for grafting. For cases of severe bone atrophy, Asensio also offers zygomatic implants as an alternative. Every case is assessed individually with a 3D CT scan before any treatment is planned.

Is All-on-four treatment painful?

The surgery is performed under local anaesthesia. Conscious sedation with nitrous oxide is available for patients who prefer it. Most patients report manageable postoperative discomfort managed with standard pain relief, and return to normal activity within a few days.

How long does All-on-four treatment take in total?

Most cases require two trips to Valencia. The consultation and surgery can be scheduled on consecutive days. The osseointegration period of three to six months is spent at home in the UK with functional provisional teeth. The second trip for the definitive prosthesis typically lasts one to two days.

What is the difference between All-on-four and All-on-six?

All-on-six uses six implants instead of four and is indicated for patients with good bone volume who want additional support. All-on-four is the more common choice because the angled implant design achieves excellent results for most patients with less surgery and lower cost. The appropriate option is determined at the diagnostic consultation.

How do I start the All-on-four treatment process?

The first step is a free consultation at Asensio, which includes a panoramic OPG X-ray and a personalised treatment plan. Call us on 0800 048 8058, email office@dentalasensio.co.uk, or visit our All-on-4 page for more information.

How To Overcome Dental Anxiety

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Dental Anxiety

At Dental Asensio, we frequently encounter patients who struggle with dental anxiety. Many of them only visit the dentist when it’s absolutely necessary, such as during emergencies, pain, or infections, because they try to postpone their appointments as much as possible. This avoidance often results in patients never overcoming their fears.

Helping Patients Overcome Dental Anxiety

We are dedicated to helping patients who, for various reasons, are afraid of visiting the dentist. To achieve this, we utilize innovative techniques such as conscious sedation and nitrous oxide to ease dental anxiety.

Understanding Dental Anxiety

Dental anxiety is a common issue that affects a significant number of individuals. It can be triggered by various factors, including past traumatic experiences, fear of pain, or even the sound of dental instruments. At Dental Asensio, we understand the importance of addressing dental anxiety, as it can lead to a delay in receiving necessary dental care and a decline in overall oral health.

Conscious Sedation

During conscious sedation, a patient relaxes and loses the fears they would otherwise experience. This technique reduces nervous tension and anxiety while also eliminating unwanted movements. Due to its fast metabolism, patients do not experience any side effects from conscious sedation.

Nitrous Oxide

Another safe method used to address dental anxiety in both adults and children is nitrous oxide, also known as laughing gas. This technique is widely used in the United States and has proven to be effective in managing this kind of anxiety. When used under supervision, the gas reduces discomfort, calms the patient, and facilitates better collaboration between the patient and dentist while keeping the main protective reflexes unchanged.

Creating a Comfortable Environment

At Dental Asensio, our goal is to create a comfortable and welcoming environment for our patients. Our staff is trained to be compassionate and understanding, ensuring that patients feel at ease during their appointments. We also encourage open communication, allowing patients to express their concerns and ask questions about their treatment.

At Dental Asensio, we prioritize the well-being of our patients and are unconditionally committed to providing the best care possible. Remember that your first visit to Dental Asensio is completely free! This initial appointment includes a 3D scan, digital radiography, an exact diagnosis, and a personalized treatment plan to help you overcome dental anxiety and maintain optimal oral health.

Revitalize Your Smile with Dental Rejuvenation!

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Dental Rejuvenation
Every day at Dental Asensio, we encounter patients whose teeth aren’t as healthy and attractive as they once were. It’s natural for teeth to be impacted by numerous factors over the years, including dental problems like grinding or bruxism, changes in chewing, and daily habits such as smoking tobacco or drinking coffee. These factors can damage and wear down the enamel, leading to teeth losing their colour, turning yellow, and losing their natural age. In many cases, teeth may also break.  That’s why many people choose to undergo dental rejuvenation treatments

Experience Comprehensive Dental Rejuvenation Treatment

Thankfully, Dental Asensio offers a dental rejuvenation treatment that can address all of these aesthetic issues, allowing you to enjoy a beautiful and healthy smile that not only brings you joy but also helps you look much younger.
The steps involved in dental rejuvenation treatment are:

  1. Dental cleaning (scale and polish): We remove teeth stains and plaque that might interfere with the treatment.
  2. Dental whitening: We lighten the teeth’s original colour by several shades, leaving them less sensitive.
  3. The visual study, dimensional and dental measurement: We thoroughly examine the characteristics of our patients to offer the best solution for their needs.
  4. Aesthetic contouring of dental pieces: We provide a smooth, round, and perfect tooth shape, restoring the tooth’s health and youthful appearance.
  5. High-quality composite dental fillings: During the same session, we reconstruct your smile using high-quality composite dental fillings. This closes the space between teeth and restores their natural length.
  6. Hyaluronic acid: If necessary, we inject hyaluronic acid into the upper part of the lips.

Contact Us Today for Your Dental Rejuvenation Needs

Don’t wait any longer to restore your beautiful and healthy smile. Contact our friendly team at Dental Asensio today to schedule your free initial consultation. You can reach us by phone at 0800 086 9049, or email us at sonrisa@dentalasensio.com. We look forward to helping you achieve the rejuvenated smile you deserve and regain your confidence with our dental rejuvenation treatment

Complex case ALL ON 4

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Dr. Lucía Asensio Romero and her team performing a complex All-on-4 case with maxillary bone atrophy

Not every All-on-4 case is straightforward. Some patients arrive at Asensio Advanced Dentistry having already been told by other clinics that their situation is too complex, that they need extensive bone grafting, or that implant treatment is simply not possible for them. This is one of those cases.


Final result of complex All-on-4 case with severe maxillary bone atrophy at Asensio Advanced Dentistry

The patient presented with complete edentulism of the upper jaw combined with significant maxillary bone atrophy — a condition in which the jawbone has resorbed substantially following long-term tooth loss. Cases of this kind are frequently rejected by implant centres that lack the surgical experience or the biomaterial protocols to handle them without aggressive intervention. At Asensio, this type of case is resolved using advanced biomaterials that allow implant placement without the need for extensive bone grafting, and the patient leaves the clinic with fixed teeth on the same day.

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Debunking Dental Health Myths: Separating Fact from Fiction

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dental health myths

At Dental Asensio, we want to address some dental health myths and rumours that have always been circulating. Many of these dental health myths are based on logical assumptions; however, understanding the real facts about oral hygiene is crucial for using the most effective methods. Read more

Dental treatment – Everything in one day!

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dental treatment

No matter which dental treatment you need, we assure you that in Dental Asensio you will get the best care and results. Moreover, regular visits to the clinic that might appear tiresome or even too slow are no longer a must!

All treatments in Advanced Dentistry Clinic Asensio are performed in one day. One of the examples is an implant treatment All-on-four which includes only four implants that are placed in the mouth to put a fixed denture of one arch. These treatments are available thanks to the latest technology, various surgery rooms and the best specialist in each field of oral health in Dental Asensio. In this way, we achieve double advantage: a complete, safe and reliable treatment, results that are unimaginable, everything is done in one day and prices could not be better! Read more

Zygomatic implants

Zygomatic Implants: Fixed Teeth When Conventional Implants Are Not Possible

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Zygomatic implants are a specialist surgical solution for patients with severe bone loss in the upper jaw who cannot receive conventional dental implants or All-on-4. Instead of anchoring in the jawbone — which has resorbed to the point where it cannot support standard implants — zygomatic implants are fixed in the cheekbone (zygoma), which retains its density and volume even after years of tooth loss.

For patients who have been told that implants are impossible because of insufficient bone, zygomatic implants often represent the only pathway to fixed teeth without extensive bone grafting. The technique was developed in Sweden by Professor Per-Ingvar Brånemark and has been refined over three decades into a predictable, well-documented procedure with high long-term success rates.

At Asensio Advanced Dentistry in Valencia, zygomatic implants are performed by Dr. Lucía Asensio Romero, a specialist in implantology and oral surgery with over 30 years of experience in complex implant cases. If you have been told you cannot have implants, contact us with your existing scans for a preliminary assessment before travelling. Call us on 0800 048 8058 or email office@dentalasensio.co.uk.

Who are zygomatic implants for?

Zygomatic implants are indicated for a specific group of patients: those with severe maxillary bone atrophy — significant resorption of the upper jawbone — who are not suitable for conventional implants or All-on-4 with standard biomaterial augmentation. This situation typically arises after:

Cause of bone atrophy Why it creates problems for standard implants
Long-term complete edentulism Bone resorbs progressively without tooth roots to stimulate it
Long-term denture use Denture pressure accelerates resorption of the underlying bone
Failed previous implants Bone loss at the failed implant site reduces available volume
Severe periodontal disease Chronic infection destroys supporting bone around teeth
Trauma or oncological surgery Direct bone loss from injury or surgical removal

Not all patients with bone loss require zygomatic implants. Many cases of moderate atrophy can be resolved with All-on-4 angled implants and biomaterial augmentation — as described in our complex All-on-4 case study. Zygomatic implants are reserved for cases where the bone volume is genuinely insufficient for any standard implant approach.

How zygomatic implants work

A zygomatic implant is significantly longer than a conventional implant — typically 30–52mm compared to 8–16mm for a standard implant. It passes through the remaining maxillary bone and the maxillary sinus, anchoring its apex in the dense cortical bone of the zygoma. This provides stable, immediate fixation that does not depend on the quality or volume of the jawbone.

In most cases, two zygomatic implants are used in combination with two or four standard implants placed in the anterior maxilla where bone is more preserved. This hybrid approach — known as the “quad zygoma” or standard zygoma protocol depending on the case — supports a complete fixed upper arch prosthesis fitted on the same day as surgery.

Stage What happens
Pre-surgical assessment 3D CBCT scan, surgical planning, prosthetic design
Surgery Placement of zygomatic implants under local anaesthesia with sedation if required
Same-day prosthesis Fixed provisional teeth fitted on the day of surgery
Osseointegration 3–6 months at home in the UK with functional provisional teeth
Definitive prosthesis Final restoration fitted at second visit to Valencia

Advantages vs bone grafting

The traditional solution for severe maxillary atrophy has been bone grafting — harvesting bone from another part of the body (typically the hip or skull) and transplanting it to the jaw, followed by a healing period of 6–12 months before implants can be placed. Zygomatic implants offer a fundamentally different approach:

Factor Bone graft approach Zygomatic implants
Treatment timeline 12–18 months total Fixed teeth same day
Number of surgeries 2–3 (graft + implants + prosthesis) 1 surgical session
Donor site surgery Yes — hip, skull or chin No
Graft failure risk 10–30% depending on case Not applicable
Cost Significantly higher Lower total cost — fewer procedures

Related guides

Frequently asked questions

Am I a candidate for zygomatic implants?

Zygomatic implants are indicated for patients with severe maxillary bone atrophy who are not suitable for conventional implants. The definitive assessment requires a 3D CBCT scan to evaluate bone volume, sinus anatomy and surgical access. If you have been told you cannot have implants due to bone loss, send us your existing scans for a preliminary remote assessment — contact us at office@dentalasensio.co.uk.

Is the surgery painful?

Zygomatic implant surgery is performed under local anaesthesia. Conscious sedation is available for patients who prefer it. Post-operative discomfort is typically managed with standard pain relief and most patients describe the experience as less uncomfortable than anticipated. Mild swelling for 3–5 days is normal.

How long do zygomatic implants last?

Long-term clinical studies show zygomatic implants have success rates above 95% at 12 years. The zygoma — unlike the maxillary bone — does not resorb, providing a stable foundation for the implant throughout the patient’s lifetime.

Can I have zygomatic implants if I have already had failed conventional implants?

In most cases yes. Failed implants are removed, the sites are treated, and zygomatic implants bypass the compromised area entirely by anchoring in the cheekbone. Each case is assessed individually with a 3D CBCT scan before any treatment is planned.

How many trips to Valencia are required?

Most patients require two trips: the first for the surgical assessment and implant placement (typically 4–5 days including pre-surgical consultation), and the second for the definitive prosthesis fitting 3–6 months later. Fixed provisional teeth are worn between visits. For more information visit our how it works page or our dental implants abroad page.

All-on-4 Implants: Goodbye to artificial dentures in a day

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All on four implants

All-on-4 implants offer patients who have worn removable dentures for years a permanent alternative — fixed teeth fitted on the same day as surgery, without the movement, discomfort and daily removal that makes conventional dentures so limiting. The transformation happens in a single clinic visit: patients arrive with failing or missing teeth and leave with a complete fixed prosthesis supported by four titanium implants.

The psychological impact of this change is significant. Many patients describe years of avoiding social situations, covering their mouth when laughing, or declining food they enjoy — all because their dentures were uncomfortable or unstable. All-on-4 implants eliminate these limitations immediately, restoring not just function but confidence.

At Asensio Advanced Dentistry in Valencia, we use Nobel Biocare and Klockner implants — the most clinically validated brands in implantology — and back every implant with a lifetime guarantee on materials. The treatment is performed under the direction of Dr. Lucía Asensio Romero, specialist in implantology and oral surgery with over 30 years of clinical experience. For a complete overview of the procedure and pricing, see our All-on-4 dental implants abroad page.

Why All-on-4 implants are better than artificial dentures

Artificial dentures have been the standard solution for full arch tooth loss for decades, but they have fundamental limitations that no amount of adhesive or adjustment can fully resolve. All-on-4 implants address each of these limitations directly, because they are anchored in the bone rather than resting on the gum.

Problem with artificial dentures How All-on-4 solves it
Movement during eating and speaking Fixed permanently to four implants — does not move
Jaw bone loss accelerates without root stimulation Implants stimulate the bone preventing further resorption
Must be removed daily for cleaning Cleaned in place with standard brushing and interdental tools
Requires periodic relining or replacement Implant material carries lifetime guarantee

The transition from removable dentures to All-on-4 is one of the most impactful treatments in modern implantology — not because the technology is complicated, but because the result changes daily life immediately and permanently.

What happens on the day of All-on-4 surgery

The surgical session at Asensio typically takes between four and six hours depending on the complexity of the case. The entire process — extractions, implant placement and fitting of the provisional prosthesis — is completed in a single visit under local anaesthesia. Conscious sedation is available for patients who prefer it.

After the procedure, patients are given detailed aftercare instructions, prescribed pain relief and anti-inflammatory medication, and are able to return to their accommodation the same day. Most patients describe the experience as far less uncomfortable than they anticipated. Solid food should be avoided for the first few weeks while the implants begin to integrate, but normal soft food is possible from the first day.

The cost of All-on-4 at Asensio is £6,480 per arch, including all extractions, implants and the same-day provisional prosthesis. View the full breakdown on our prices page.

Related guides

Frequently asked questions about All-on-4 implants

Can I really leave the clinic with fixed teeth the same day?

Yes. The fixed provisional prosthesis is attached to the implants on the same day as surgery. It is not a removable device — it stays in place while the implants integrate with the bone over the following months. At the second visit the provisional is replaced with the definitive restoration.

Is All-on-4 suitable for patients who have worn dentures for many years?

Yes, in most cases. Long-term denture wearers often have some degree of bone loss, but the angled All-on-4 technique is specifically designed to maximise available bone and avoid grafting in most cases. Every patient is assessed individually with a 3D CT scan. Severely atrophic cases may be treated with zygomatic implants as an alternative.

How long do All-on-4 implants last?

The titanium implants themselves are designed to last a lifetime and carry a lifetime guarantee on materials at Asensio. The prosthetic restoration — the visible teeth — may require maintenance or renewal over time depending on wear and the materials used. Regular professional reviews help identify and address any issues early.

What is the recovery like after All-on-4 surgery?

Most patients experience mild to moderate swelling and discomfort in the first few days, managed with standard pain relief. The majority return to light activity within two to three days. Strenuous exercise and hard food should be avoided for several weeks. A soft diet during the osseointegration period is recommended but normal eating is resumed fully once the definitive prosthesis is fitted.

How do I find out if I am a candidate for All-on-4?

The best way is a free consultation at Asensio, which includes a panoramic OPG X-ray and clinical assessment. Call us on 0800 048 8058, email office@dentalasensio.co.uk, or visit our All-on-4 page for full details.

Dental Implants Hurt

Do Dental Implants Hurt? What to Expect Before, During and After

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Fear of pain is one of the most common reasons people delay or avoid dental implant treatment — and in most cases it is based on an expectation that does not match reality. The surgery is performed under local anaesthesia, which means the procedure itself is painless. Post-operative discomfort is real but manageable, and the majority of patients describe it as less than they anticipated. This guide explains what actually happens at each stage so you can make an informed decision.

At Asensio Advanced Dentistry in Valencia, conscious sedation is available for patients who want additional reassurance during surgery. Dr. Lucía Asensio Romero, specialist in implantology and oral surgery with over 30 years of experience, leads all implant procedures at the clinic.

Does the implant surgery hurt?

The implant placement procedure is carried out under local anaesthesia — the same type used for tooth extractions. The anaesthetic is injected into the gum before surgery begins and numbs the area completely. You will feel pressure and movement during the procedure but not pain. The surgery typically takes 45–90 minutes for a single implant, longer for multiple implants or full arch cases.

For patients with dental anxiety, conscious sedation with nitrous oxide (laughing gas) is available at Asensio. This does not put you to sleep but significantly reduces anxiety and makes the experience more comfortable. Many patients are surprised by how straightforward the procedure feels once they are in the chair.

What about after the surgery?

Once the anaesthetic wears off — usually 2–4 hours after the procedure — some discomfort is normal. This is not the implant hurting but the normal inflammatory response as the tissue begins to heal. The discomfort is typically at its peak in the first 24–48 hours and then reduces progressively.

Timeframe What to expect Management
Day 1 Mild to moderate soreness as anaesthetic wears off, possible swelling Prescribed pain relief and anti-inflammatories, soft diet, ice pack
Days 2–3 Swelling typically peaks, soreness begins to reduce Continue pain relief as needed, soft diet
Days 4–7 Significant improvement, most patients return to normal activity Over-the-counter pain relief if needed
Week 2 onwards Minimal or no discomfort in most cases Normal oral hygiene with gentle technique around implant site

All-on-4 patients — who undergo a more extensive procedure involving multiple extractions and implants — typically experience more swelling and discomfort in the first few days, but the recovery pattern is similar. Most patients are comfortable enough to fly home within 2–3 days of surgery.

Does the implant hurt during osseointegration?

Osseointegration — the 3–6 month period during which the implant integrates with the surrounding bone — should be painless. A successfully placed implant does not cause pain during this period. If you experience persistent pain, throbbing or swelling around an implant at any point after the first week, this is a signal that something requires attention — most commonly early peri-implant inflammation, which is fully manageable if addressed promptly.

Asensio provides a 24-hour contact line for all implant patients: 0800 048 8058. UK patients are advised to contact us directly if they have any concerns during the osseointegration period rather than waiting until their next scheduled visit.

For full guidance on keeping your implants healthy long term, see our care of dental implants guide.

Does the final crown or prosthesis cause any discomfort?

Once the definitive restoration is fitted, a well-integrated implant should feel entirely natural. Most patients describe it as indistinguishable from a natural tooth within a few weeks of fitting. There may be a brief adjustment period as you get used to the bite, but this is minor and resolves quickly.

Frequently asked questions

Is dental implant surgery more painful than a tooth extraction?

Most patients who have had both report that implant surgery is no more uncomfortable than a straightforward extraction — and often less so, because modern implant technique is minimally invasive. The post-operative recovery is similar: a few days of mild soreness that responds well to standard pain relief.

Can I have implants if I am nervous about pain?

Yes. Conscious sedation with nitrous oxide is available at Asensio for anxious patients and makes a significant difference to the experience. The anaesthetic used during surgery eliminates pain completely — sedation simply reduces anxiety around the procedure itself.

What pain relief will I be given after surgery?

Asensio prescribes appropriate pain relief and anti-inflammatory medication before you leave the clinic after surgery. This is typically ibuprofen and paracetamol, which are effective for post-implant discomfort. If you are travelling back to the UK shortly after surgery, the prescription will be written to cover the recovery period.

What if I have pain weeks after my implant was placed?

Persistent or new-onset pain weeks after implant surgery is not normal and should be assessed promptly. It may indicate early peri-implantitis, an issue with osseointegration, or a prosthetic complication. Contact us at office@dentalasensio.co.uk or call 0800 048 8058 if you experience this.

How do I find out more about implant treatment at Asensio?

The free first consultation includes a panoramic OPG X-ray and a personalised treatment plan. Call us on 0800 048 8058 or visit our dental implants abroad page for full information.

Related guides