All-on-4 and All-on-6 Dental Implants: A Comprehensive Guide

Dental bridge with All-on-4 Dental Implants
Whether you have failing, ailing or even no teeth at all - the All-on-4 or All-on-6 treatments may well be something you may require to get you back on track and start eating and smiling with confidence again.


The world of dentistry has seen significant advancements over the years, with one of the most revolutionary being the All-on-4 or All-on-6 dental implant procedure. This innovative treatment, also known as All-on-4, All-on-6, smile in a day, same day teeth or teeth in a day, provides a permanent solution for individuals who have lost most or all of their teeth. But what exactly is All-on-4, and who is an ideal candidate for this procedure? In this article, we will delve into these questions and more, providing you with a comprehensive understanding of the criteria for All-on-4 treatment.

What is All-on-4 and All-on-6?

All-on-4 teeth in a day is a dental procedure designed to provide patients with a full set of teeth in a single day, using only four dental implants to support a fixed bridge or denture. All-on-6 is similar but uses six instead of four dental implants. This technique is typically used for patients who have lost most or all of their teeth and desire a quick and effective solution for tooth replacement.

The procedure involves the placement of four dental implants in strategic locations within the jawbone to maximize support and stability. These implants serve as anchors for a custom-made prosthetic bridge or denture, which is then attached to the implants on the same day as the implant surgery.

Patient Criteria for All-on-4 and All-on-6 Procedure

The criteria for All-on-4 dental implants are essential considerations that help determine if a patient is a suitable candidate for this innovative tooth replacement solution. While the criteria may vary slightly depending on individual circumstances and the recommendations of the dental professional, several common factors are typically assessed:

Overall Oral Health: Candidates for smile in a day, should have generally good oral health, free from active gum disease (periodontitis) or untreated dental infections. Any existing oral health issues should be addressed before undergoing implant surgery to minimise the risk of complications.

Sufficient Bone Density: Adequate bone density is crucial for the success of dental implant placement. The jawbone must have enough volume and density to support the implants securely. In some cases of bone loss, bone grafting procedures may be necessary to augment the bone structure before implant placement.

Stable General Health: Candidates should be in good overall health, free from uncontrolled medical conditions that could compromise the healing process or increase the risk of complications during surgery. A thorough medical history review is typically conducted to assess the patient's suitability for the procedure.

Commitment to Oral Hygiene: Maintaining proper oral hygiene is essential for the long-term success of All-on-4 dental implants. Candidates should be committed to practicing good oral hygiene habits, including regular brushing, flossing, and attending dental check-ups and cleanings.

Non-Smoker or Willingness to Quit: Smoking can negatively impact the success of dental implant surgery and the healing process. Candidates who smoke may be advised to quit smoking before undergoing smile in a day treatment to improve their chances of successful implant integration and long-term implant stability.

Realistic Expectations: Candidates should have realistic expectations about the outcomes of All-on-4 dental implants, including understanding the potential risks, benefits, and limitations of the procedure. A thorough consultation with the dental provider can help ensure that the patient's expectations align with the achievable results.

Desire for Permanent Tooth Replacement: Candidates for All-on-4 dental implants should have a genuine desire for a permanent and stable solution for tooth loss. They should be motivated to restore their oral function, aesthetics, and quality of life through implant-supported prosthetic teeth.

Financial Considerations: While All-on-4 dental implants offer numerous benefits, candidates should also consider the financial investment involved in the procedure. Financing options are available to help offset the cost of treatment, but patients should be prepared to invest in their long-term oral health and well-being.

By carefully evaluating these criteria, we can help you develop a bespoke treatment plan tailored to your unique needs and goals.

The Benefits of All-On-4 and All-on-6 Treatment

Now that we've discussed the criteria for smile in a day, let's look at why this procedure is becoming increasingly popular.

Immediate Results: All-on-4 dental implants provide immediate functionality, allowing patients to leave the dental office with a fully restored smile on the same day as the procedure.

Fewer Implants Required: Traditional dental implant procedures may require a larger number of implants to support a full arch of teeth. With All-on-4, only four implants are needed per arch, reducing the overall treatment time and complexity of the procedure.

Minimally Invasive: All-on-4 dental implant placement is often less invasive than traditional implant procedures, as it typically eliminates the need for bone grafting surgery. The implants are strategically placed in areas of the jawbone with the highest bone density, maximising stability and reducing the risk of complications.

Stability and Durability: The strategic placement of the implants and the secure attachment of the prosthetic teeth result in a stable and durable restoration. All-on-4 dental implants provide reliable support for chewing, speaking, and smiling, allowing patients to enjoy a comfortable and functional bite.

Improved Aesthetics and Confidence: All-on-4 dental implants are custom-made to look and feel like natural teeth, restoring the appearance of a full smile. This can significantly enhance confidence and self-esteem, allowing patients to smile and socialise with ease.

Preservation of Jawbone Structure: By replacing missing teeth with dental implants, All-on-4 help preserve the jawbone structure and prevent bone loss. This can have long-term benefits for oral health and facial aesthetics, maintaining a youthful and vibrant appearance.

Ease of Maintenance: All-on-4 dental implants are easy to care for and maintain. Patients can simply brush and floss their prosthetic teeth as they would with natural teeth, along with regular dental check-ups and cleaning to ensure optimal oral health.

Patients that recommend Zental for All-On-4 and All-on-6 Dental Implants

Abdul Hakim had a difficult experience with the dentist at a young age. His experience altered his confidence and wellbeing in adulthood. As a consequence, he became fearful of visiting the dentist. He eventually found the courage to visit Zental when his oral health deteriorated. Abdul Hakim met with the team in Zental Dental Cricklewood led by Dr Ihsaan Al-Hadad and embarked on All on 4 - Teeth in a Day treatment. Full mouth rehabilitation using dental implants is highly complex and can only be conducted by a few, highly trained oral surgeons in the UK. Abdul Hakim shares his brave story and explains why he continues to Trust in Calm with Zental.

The Disadvantages of All-On-4 and All-on-6 Treatment

Cost: While All-on-4 dental implants can be more cost-effective than traditional implant-supported restorations requiring more implants, they still represent a significant financial investment. The initial cost may be prohibitive for some patients, especially if insurance coverage is limited.

Surgical Complexity: Smile in a day surgery is a complex procedure that requires precise planning and execution. It involves oral surgery to place the implants, which can be intimidating for some patients. Additionally, there may be risks associated with anesthesia and post-operative discomfort.

Risk of Complications: As with any surgical procedure, there are potential risks of complications with All-on-4 dental implants, including infection, bleeding, nerve damage, and implant failure. While these risks are relatively low, they should be considered when deciding on treatment.

Requirement for Adequate Bone Density: All-on-4 dental implants rely on the existing bone structure for support. Patients with insufficient bone density may require bone grafting procedures before implant placement, adding complexity and cost to the treatment.

Limited Adjustability: Once the prosthetic teeth are attached to the implants, they are fixed in place and cannot be easily adjusted. This means that any changes in bite alignment or aesthetic preferences may be challenging to accommodate without significant intervention.

Maintenance Challenges: While All-on-4 dental implants are designed to be durable and long-lasting, they require proper maintenance and regular dental check-ups to ensure their longevity. Some patients may find it challenging to clean around the implants and prosthetic teeth, increasing the risk of oral health problems.

Aesthetic Limitations: While All-on-4 dental implants aim to provide a natural-looking smile, some patients may be dissatisfied with the aesthetic appearance of the prosthetic teeth. Factors such as color, shape, and size may not fully match the patient's natural teeth or desired aesthetic outcome.

Non-Removability: Unlike removable dentures, All-on-4 dental implants are fixed in place and cannot be removed by the patient. While this offers stability and security, some individuals may prefer the option of removing their dentures for cleaning or comfort.

Potential for Sinus Complications: In the upper jaw, the implants used in the same day teeth procedure may extend into the sinus cavity. This can increase the risk of sinus complications such as sinusitis or sinus perforation, particularly if the sinus floor is thin or compromised.

Long-Term Maintenance and Replacement: While All-on-4 dental implants are designed to be a long-term solution for tooth loss, the prosthetic teeth and implant components may require maintenance or replacement over time due to wear, damage, or complications. This can incur additional costs and inconvenience for patients.

You oral surgeon will discuss these potential disadvantages with you and help you weigh them against the benefits of the treatment. By understanding the risks and limitations, you can make informed decisions about your oral health and tooth replacement options.

Process for having All-On-4 and All-on-6 Treatment

Although All-on-4 dental implants are often referred to as smile in a day or teeth in a day, this describes the surgical implementation and temporary bridge placement stage. In fact, the process requires several visits and a dedicated commitment to achieve the best possible result. The process typically includes the following stages:

Consultation - A detailed consultation with a highly qualified and skilled UK trained, oral surgeon to discuss your aspirations and needs. At Zental, we train our oral surgeons to meet the highest standards and maintain their skills in keeping with the latest innovations.

Diagnostic scan and detailed treatment planning - At Zental, we use cutting edge imaging tools to make our dental implant planning more precise and effective. You will be presented with a tailored treatment plan that will include a transparent cost breakdown and comprehensive information about your treatment as well as financing options if required.

Surgical Implantation and temporary bridge placement -  All-on-4 dental implants work well with four implants if there is a lack of space or minimal bone available. However, we may use upto six implants to provide greater stability and longevity, especially for implant retained bridges of 10 to 12 teeth. Once the dental implants are placed, the temporary bridgework is inserted.

Final Fitting - following a healing process that may last between 12-16 weeks, the final bridge is ready to be placed. This process may include refining the fit and aesthetics of the bridge and teeth.

Follow-up - At Zental, we always recommend regular reviews to ensure the investment you have made in your oral wellbeing is maintained for as long as possible. Your oral surgeon will provide you with a detailed aftercare plan, including follow-up appointments and guidance for oral hygiene. This is also supported by lifestyle as well as nutritional information.

Leading All-On-4 and All-on-6 Manufacturers

Several dental implant manufacturers offer All-on-4 systems, each with its own unique features and advantages. Some of the leading All-on-4 systems include:

  1. Nobel Biocare All-on-4: Nobel Biocare is a well-established dental implant company that offers an All-on-4 treatment concept. Their system utilizes high-quality implants and prosthetic components designed to provide stable and long-lasting results. Nobel Biocare's All-on-4 solution is known for its precision and reliability.
  2. BioHorizons All-on-4: BioHorizons is known for its innovative dental implant solutions, including an All-on-4 system. Their All-on-4 solution features high-quality implants and prosthetic components designed to provide predictable outcomes and long-term stability. BioHorizons' All-on-4 system is known for its simplicity and efficiency.
  3. Straumann Pro Arch: Straumann is another reputable dental implant manufacturer that offers an All-on-4 solution called Pro Arch. This system combines Straumann's advanced dental implants with innovative prosthetic components to provide patients with a functional and aesthetically pleasing smile. Straumann Pro Arch is known for its versatility and ease of use.
  4. Zimmer Biomet All-on-4: Zimmer Biomet is a leading provider of dental implants and prosthetic solutions, including an All-on-4 system. Their All-on-4 solution incorporates high-quality implants and prosthetic components designed to deliver excellent stability and long-term performance. Zimmer Biomet's All-on-4 system is known for its reliability and durability.
  5. Dentsply Sirona All-on-4: Dentsply Sirona offers an All-on-4 solution that combines their innovative dental implants and prosthetic components to provide patients with a comprehensive tooth replacement option. Dentsply Sirona's All-on-4 system is designed to optimize aesthetics, function, and patient satisfaction.

These are just a few examples of the leading All-on-4 systems available in the market. Each system may have unique features, materials, and techniques, so it's essential for patients to consult with us to determine which All-on-4 solution is best suited to their individual needs and preferences.

Longevity of All-On-4 and All-on-6 dental implants

The longevity of All-on-4 dental implants can vary depending on various factors, including the patient's oral hygiene practices, overall health, lifestyle habits, and the quality of the implant materials used. However, with proper care and maintenance, All-on-4 dental implants are designed to be a long-term solution for tooth loss.

On average, All-on-4 dental implants can last for 10 to 20 years or even longer with appropriate care. Some patients may experience even greater longevity, while others may require maintenance or replacement sooner due to factors such as wear, damage, or changes in oral health.

Here are some key factors that can influence the lifespan of All-on-4 dental implants:

Oral Hygiene: Maintaining good oral hygiene is essential for the long-term success of dental implants. Patients should brush and floss their prosthetic teeth regularly and attend regular dental check-ups and cleanings to prevent plaque buildup, gum disease, and other oral health issues that can compromise implant stability.

Smoking and Tobacco Use: Smoking and tobacco use can negatively impact the success of dental implant surgery and the long-term stability of implants. Patients who smoke may have a higher risk of implant complications and may experience implant failure sooner than non-smokers.

Systemic Health Conditions: Certain systemic health conditions, such as diabetes and autoimmune disorders, can affect the body's ability to heal and may increase the risk of implant complications. Patients with these conditions may require closer monitoring and may have a shorter lifespan for their implants.

Bone Health: Adequate bone density and quality are essential for the success of dental implants. Patients with compromised bone structure may be at higher risk of implant failure or complications. Bone loss over time can also affect the stability and longevity of implants.

Implant Maintenance: Regular maintenance and follow-up care are important for monitoring the condition of All-on-4 dental implants over time. Dental providers may recommend periodic adjustments, repairs, or replacement of the prosthetic teeth or implant components as needed to ensure optimal function and longevity.

Overall, while All-on-4 dental implants are designed to be a durable and long-lasting solution for tooth loss, individual experiences may vary. At Zental. we work closely with you to develop a bespoke treatment plan and follow-up care regimen to maximise the lifespan of your dental implants and maintain a healthy, functional smile for years to come.

Meet our award winning clinical team at Zental

Our dental implant clinical team are lead by Dr Ihsaan Al-Hadad, a leading UK Surgeon with degrees in both Dentistry and Medicine. He has vast exposure to both the hospital and dental practice environments, looking after patients with complicated medical needs. He has a special interest in oral surgery, sedation and complex aesthetic implant rehabilitation on nervous patients. He started his implant training at the Prestigious Charles Clifford Hospital in Sheffield and subsequently attended numerous advanced implant training courses both in the UK and abroad. He is highly proficient in the field of All on 4, full mouth dental implant rehabilitation where treatment involves a fixed bridge held by implants all done on the same day. His team treats over 100 cases a year. Ihsaan enjoys teaching, which particularly shows in his interaction with patients. He has held several posts including The Royal London dental Hospital training students in sedation as well as being a mentor for NHS England training dentists in improving their practice in oral surgery. He also acts as a mentor for many dental surgeons who wish to embark on the exciting field of Implant Dentistry offering them one-to-one and small group training and live surgery. He has lectured in the UK as well as internationally and has published several articles and research in prestigious medical, dental and surgical journals.

Alternatives to All-On-4 and All-on-6 dental implants

While All-on-4 and All-on-6 dental implants offer comprehensive solutions for tooth loss, they may not be suitable for every patient. Fortunately, there are several alternatives to consider, each with its own benefits and limitations. Here are some alternatives to All-on-4 and All-on-6 dental implants:

Traditional Dental Implants: Traditional dental implants involve the placement of individual implants to replace missing teeth. This option is suitable for patients who have sufficient bone density and require replacement of multiple missing teeth in different areas of the mouth. Traditional implants offer excellent stability, functionality, and longevity, but they may require more extensive surgery and a longer treatment time compared to All-on-4 or All-on-6 implants.

Implant-Supported Dentures: Implant-supported dentures combine the stability of dental implants with the convenience of removable dentures. This option involves attaching a removable denture to dental implants, providing increased stability and preventing slippage or movement. Implant-supported dentures may be suitable for patients who prefer the flexibility of removable prosthetics or have concerns about the cost or invasiveness of full-mouth implant solutions.

Mini Dental Implants: Mini dental implants are smaller in diameter than traditional implants and require less invasive surgery. They are often used to stabilise removable dentures or replace small teeth in areas with limited space.Mini dental implants may be a suitable alternative for patients who have insufficient bone density or are not candidates for traditional implants due to health concerns.

Fixed Bridge Supported by Implants: A fixed bridge supported by implants involves attaching a dental bridge to implants placed in the jawbone. This option is suitable for patients who have adjacent teeth in good condition and prefer a fixed restoration that does not require removable prosthetics. Fixed bridges offer excellent stability and aesthetics but may require the preparation of adjacent teeth to accommodate the bridge.

Traditional Dentures: Traditional dentures are removable prosthetics that replace missing teeth and restore oral function and aesthetics. While they do not provide the same level of stability as implant-supported options, they are often more affordable and less invasive. Traditional dentures may be suitable for patients who are not candidates for dental implants or prefer a non-surgical solution for tooth replacement.

When considering alternatives to All-on-4 and All-on-6 dental implants, it's essential to consult with a qualified dental professional to assess your individual needs, preferences, and oral health status. Together, you can determine the most suitable treatment option to restore your smile and improve your quality of life. At Zental, we also offer the full spectrum of alternative treatments to All-On-4 and All-on-6 dental implants.


In conclusion, while not everyone will meet the criteria for same day teeth immediately, there are often steps that can be taken to make this life-changing procedure a reality for many individuals suffering from tooth loss. If you are considering All-on-4, it's essential to consult with a dental professional who can evaluate your suitability for this procedure and guide you through the process. Remember, a healthy smile is not just about aesthetics; it's a crucial component of overall health and well-being. At Zental, we take a holistic approach to your smile and can offer the All-On-4, All-on-6 dental implants or an alternative solution depending on your needs. Book a consultation now!

Alternatively learn more about All on 4 teeth in a day treatment, visit our treatment section.

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