Implant AOX
Customized Segmented Full-Arch Implant Reconstruction
An existing upper full-arch implant bridge was redesigned around the patient's request for a more customized, flossable segmented restoration.
This patient already had a full-arch implant-supported bridge in the upper arch and two implant crowns in the lower arch. Although the upper restoration was functioning well, she wanted a highly customized redesign that would change both the tooth shape and the way the restoration was divided.
A functional full-arch bridge that no longer matched the patient's preferences
The patient was an existing implant patient with two implant crowns in the lower arch and an upper full-arch implant-supported bridge that had previously been completed in Brazil. The upper restoration was functioning well, and she had initially been satisfied with it.
At a later checkup, however, she explained that she had become unhappy with the shape of the teeth and with the fact that the upper restoration was designed as one connected piece without traditional gaps between the teeth.
Her request was unusual for a full-arch implant restoration: she wanted the upper teeth divided into several separate sections so she could pass floss between them more like individual teeth.
The implant positions supported one connected bridge—not several independent sections
The existing upper All-on-X-style bridge was clinically functional, and there was no indication that the entire restoration needed replacement because of structural failure. The main limitation was the position and distribution of the existing implants.
Most of the implants were concentrated around the premolar region. That arrangement worked for the original full-arch bridge, but it did not provide enough independent support to safely divide the restoration into separate front and back sections.
Creating several independent restorations required implant support in the correct positions throughout the arch. After the limitations of the existing configuration were reviewed, the patient remained committed to pursuing a segmented design.
Four additional implants created support for a six-piece segmented restoration
The existing upper full-arch bridge was removed so the implant configuration could be evaluated and modified. One existing implant that was not being utilized was removed, and four new implants were placed to create better support across the arch.
- Two additional implants were placed toward the front of the arch
- Two additional implants were placed toward the back of the arch
- The new implants were allowed to heal for approximately three months
- The arch was digitally scanned in sections after healing
The final reconstruction consisted of six separate pieces: one individual implant crown on each side and four implant-supported bridge sections through the center of the arch.
The segmented design created several spaces between the restorations where the patient could pass floss. She was extremely pleased with the result, and the case remained stable at approximately three years of follow-up.
Before & after treatment
These images show the case before treatment and after the customized full-arch implant reconstruction was completed.
Learn more about full-mouth implants, All-on-X treatment, and additional implant cases at Nine One Dental.
Why most All-on-X restorations are one connected bridge
All-on-X treatment is typically designed around a single fixed full-arch restoration supported by a strategically positioned group of dental implants. Connecting the teeth into one restoration helps distribute chewing forces across the implant system and allows an entire arch to be replaced using fewer implants than would be required to support every tooth independently.
Because the prosthesis is connected, a traditional full-arch implant bridge usually does not have normal flossable spaces between every individual tooth. Patients are instead taught specialized cleaning techniques for maintaining the area beneath and around the restoration.
A segmented design can be considered in selected cases, but enough implant support must be present in the correct locations. If implants were originally positioned for one connected bridge, additional implants may be required before the restoration can safely be divided into smaller independent sections.
This case represents an unusually customized solution based on one patient's specific preferences. It is not the standard approach for All-on-X treatment, and for most patients a traditional connected full-arch restoration remains an effective and predictable option.
All-on-X and segmented implant bridge FAQ
Are All-on-X teeth normally one connected piece?
Yes. Most All-on-X restorations are designed as a single fixed bridge spanning the dental arch. The implants work together to support the restoration and distribute biting forces across the arch.
Why aren't there normal gaps between every tooth in an All-on-X bridge?
The visible teeth are part of one connected prosthetic structure rather than separate natural teeth. The tooth shapes can look individual, but the restoration underneath remains connected.
Can I floss between the teeth of an All-on-X bridge?
Generally, not between every individual tooth in the same way as natural teeth. Patients may use floss threaders, specialized implant floss, interdental brushes, oral irrigators, and other cleaning methods recommended by their dental team.
Can an All-on-X bridge be divided into separate sections?
In selected cases, yes. The number and position of the implants must provide adequate support for each independent section. Additional implants may be required when the original implants were positioned for a single full-arch bridge.
Why did this patient need four additional implants?
The original implants were concentrated primarily around the premolar areas. That configuration supported the connected bridge, but not separate anterior and posterior restorations. Additional implants were therefore placed in both the front and back regions.
Does every patient need this many implants for All-on-X treatment?
No. This was an unusual case in which the patient specifically requested multiple separate restorative sections. Traditional All-on-X treatment is designed around a strategic number of implants supporting one connected full-arch restoration.
Can the shape of the teeth on an existing All-on-X bridge be changed?
Often, yes. The prosthesis may be redesigned or replaced depending on its condition and the underlying implant system. Changing the restoration is generally simpler than changing the number, location, or distribution of the implants.
Is a segmented implant bridge better than a traditional All-on-X bridge?
Not necessarily. A segmented design may suit certain highly specific restorative or hygiene preferences, but it requires sufficient implant support and more complex planning. For most patients, a traditional connected full-arch restoration remains an effective solution.
Can an existing All-on-X case be redesigned years later?
Potentially. The health, position, stability, and compatibility of the existing implants must be evaluated along with available bone and the patient's restorative goals. Some cases may only require a new prosthesis, while others may require additional implant surgery.
Full-arch implant treatment should be customized to the patient
There is no single restoration design that is right for every patient. A comprehensive implant evaluation can help determine which approach offers the best balance of function, appearance, hygiene, and long-term stability for your individual needs.
Schedule an Implant ConsultationFrom Removable Dentures to Fixed Implant-Supported Teeth
A full-arch implant case designed around the patient's goal of moving away from removable dentures while accounting for especially strong bite forces.
The patient came to the office specifically because he had heard about the practice's experience with dental implants and wanted to know whether there was a way to eliminate his removable dentures. He was missing all of his upper teeth, wearing a complete upper denture, and using a removable partial denture on the lower arch.
A patient ready to move beyond removable dentures
The patient came to the office specifically because he had heard about the practice's experience with dental implants and wanted to know whether there was a way to eliminate his removable dentures.
He was missing all of his upper teeth and wearing a complete upper denture. On the lower arch, he was using a removable partial denture to replace several missing teeth.
His main concern was straightforward: he no longer wanted restorations that had to be taken in and out of his mouth.
The patient also had a particularly strong bite and pronounced jaw musculature, which placed significant force on his existing acrylic restorations and contributed to repeated wear and the need for replacement.
Complete upper tooth loss, a lower partial denture, and unusually strong chewing forces
The upper arch was completely edentulous, meaning none of the natural upper teeth remained.
The lower arch still contained some natural teeth, but the missing areas were being restored with a removable partial denture.
During treatment planning, the patient's bite strength was an important consideration. His strong chewing forces and prominent jaw muscles meant that any fixed restoration would need to be designed with durability in mind.
A conventional acrylic-based solution could be more susceptible to wear or fracture in a patient generating substantial bite forces.
Because the patient strongly preferred a fixed solution, implant-supported treatment offered a way to replace the removable prostheses while creating a more stable foundation for chewing.
Fixed full-arch implant treatment with zirconia selected for durability
A fixed implant-supported treatment plan was developed to eliminate the patient's reliance on removable dentures.
For the completely edentulous upper arch, dental implants were used to support a fixed full-arch restoration consistent with an All-on-X treatment approach.
Instead of relying on the gums for support like a traditional denture, the restoration was secured to implants positioned within the jawbone.
Because of the patient's powerful bite and history of significant wear on acrylic restorations, zirconia was selected for the definitive implant-supported prosthesis.
Zirconia provided the strength required for the patient's functional demands while still allowing the teeth to be designed with natural proportions and esthetics.
The result gave the patient a fixed solution that remained in place during normal daily function rather than requiring him to remove an upper denture.
Implant-supported treatment was also incorporated into the overall rehabilitation of the lower arch so that the patient's dependence on a removable partial denture could be reduced or eliminated.
Why All-on-X can replace a removable full denture
A traditional complete denture replaces an entire arch of missing teeth but rests primarily on the gums and underlying tissues.
An All-on-X restoration takes a very different approach.
Several strategically positioned dental implants are placed throughout the jaw and used to support a fixed full-arch bridge.
Because the restoration is anchored to implants, patients do not remove it every night the way they would a conventional denture.
The implants also provide a much more stable foundation during chewing and speaking.
For patients who have worn removable dentures for years, one of the biggest benefits of full-arch implant treatment is often simply having teeth that feel securely attached again.
Why zirconia may be used for a full-arch implant bridge
Full-arch restorations can be made from several different materials.
Acrylic-based implant bridges can provide excellent results, but restorative material selection should take the individual patient's bite, anatomy, habits, and functional demands into consideration.
Patients with very strong jaw muscles or heavy bite forces can place considerably more stress on their restorations.
Zirconia is a high-strength ceramic material commonly used for implant-supported restorations.
For an appropriate patient, it can provide:
- High resistance to wear and fracture
- A strong chewing surface
- Excellent stability
- Natural tooth shape and color
- A smooth, highly polished surface
- A metal-free visible restoration
The strongest material is not automatically the best material for every patient. The final choice should be based on the entire implant and bite evaluation.
In this case, the patient's strong bite made durability an especially important part of treatment planning.
All-on-X, zirconia, and fixed implant bridge FAQ
What is All-on-X dental implant treatment?
All-on-X is a full-arch implant treatment in which several strategically positioned dental implants support a fixed bridge replacing an entire arch of teeth. The "X" reflects the fact that the exact number of implants can vary depending on the patient's anatomy and treatment requirements.
Is an All-on-X bridge removable?
Not by the patient during normal daily use. Unlike a traditional denture, the restoration is secured to dental implants. It can generally only be removed by the dental team when professional maintenance or repair is required.
Can someone who already wears a full denture get All-on-X implants?
Potentially, yes. Many patients pursue full-arch implant treatment specifically because they are tired of wearing removable dentures. The dentist must evaluate available bone, gum health, anatomy, medical history, bite forces, and other factors before determining whether treatment is appropriate.
Can implants also replace a removable partial denture?
Yes. Depending on how many natural teeth remain and their condition, dental implants can sometimes support individual crowns or bridges that replace teeth previously restored with a removable partial denture.
Why was the patient's strong bite important?
Every time a patient chews, forces are transferred through the restoration and into the implants. Patients with strong jaw muscles, heavy bites, grinding habits, or clenching can generate greater forces than average. Those forces influence implant positioning, prosthetic design, restorative material selection, and long-term maintenance.
Why use zirconia instead of acrylic?
There is no single material that is best for every patient. Acrylic-based restorations can work very well, but zirconia provides greater material strength and wear resistance, which may be advantageous for certain patients with heavy bite forces. In this case, durability was a particularly important consideration because of the patient's strong bite and history of wearing through acrylic restorations.
Are zirconia implant teeth actually made from individual teeth?
A zirconia full-arch restoration may look like individual natural teeth, but the teeth are typically part of one connected implant-supported prosthesis. This connected design allows forces to be distributed across the supporting implants.
Does zirconia look natural?
Modern zirconia restorations can be designed with individualized tooth shapes, contours, shades, and surface characteristics. The goal is to combine the strength required for a full-arch restoration with a natural-looking smile.
Will strong bite forces damage dental implants?
Implants are designed to withstand normal chewing forces, but excessive forces can increase stress on the implants, screws, restorative materials, and surrounding bone. That is why bite evaluation is an important part of full-arch implant planning.
Does everyone with dentures need All-on-X treatment?
No. Traditional dentures, implant-retained removable dentures, individual implants, implant bridges, and fixed full-arch restorations are all potential options. The appropriate treatment depends on the patient's anatomy, goals, health, budget, remaining teeth, and personal preferences.
How do you clean an All-on-X bridge if it doesn't come out?
Although the restoration stays fixed in the mouth, patients still need to clean around and underneath it. Depending on the design, this may involve water flossers, floss threaders, interdental brushes, specialized implant floss, and professional maintenance visits. The dental team can recommend a hygiene routine based on the specific restoration.
Learn more about full-mouth implants, All-on-X treatment, and additional implant cases at Nine One Dental.
Explore whether fixed implant-supported teeth may be an option for you
For patients who are tired of taking a full or partial denture in and out every day, dental implants may provide an alternative. All-on-X treatment can replace an entire arch of missing teeth with a stable, fixed implant-supported restoration designed around the patient's bite, anatomy, function, and esthetic goals. For patients with particularly strong chewing forces, restorative materials such as zirconia may also provide the durability needed for a more demanding full-arch case.
Schedule an Implant Consultation