Implants dentaires All-on-4 : Arche unique ou bouche complète

All-on-4 single arch vs full mouth implants – which is best for you? If you’re considering implants but unsure of the difference between the two, you’re not alone. Many patients are torn between the ease of All-on-4 single arch implants and the full mouth rehabilitation of full mouth implants.

What’s the difference?

Here are the key differences between All-on-4 single arch and a full mouth

• Nombre d'implants : All-on-4 uses 4 implants per arch; full mouth requires more.
• Stability: Both offer high stability; full-mouth implants provide additional support.
• Délai de rétablissement : All-on-4 typically has a shorter recovery time due to fewer implants.
• Coût : Full mouth implants are more expensive, ranging from €10,000.

Fonctionnalité	Arc simple All-on-4	Full Mouth All-on-4
Nombre d'implants	4 implants per arch	8 implants (4 per arch)
Stabilité	High stability	Higher stability, especially for severely resorbed jawbone
Immediate Functionality	Designed for immediate loading	Designed for immediate loading
Délai de récupération	Shorter recovery time	Longer recovery time
Customization	Limited customization options	More customization options for natural look and feel
Longévité	Designed to be long-lasting	Potentially more durable due to additional support

Single Arch vs Full Mouth All-on-4 Implants

Number of Implants and Stability

• Nombre d'implants: Tout sur 4, 4 implants per arch, that’s a big reason why it’s so popular, fewer surgical procedures (1).

• Stabilité: Both are very stable, but full mouth may offer more support especially if the jawbone is severely resorbed (2).

Immediate Functionality and Recovery Time

• Immediate Functionality: All-on-4 implants are designed for immediate loading, patients can use their new teeth shortly after surgery.

  
  

  That’s a big advantage for many patients (3).

• Délai de rétablissement : All-on-4 has shorter recovery time due to fewer implants and less invasive surgery.

  
  

  That’s great for patients who need to get back to normal life quickly.

Customization and Lifespan

• Customization: Full mouth implants offer more customization for a natural look and feel with prosthetic teeth.

  
  

  That’s important for patients who are concerned about the aesthetics of their implants.

• Durée de vie: Both are long lasting but full mouth may have a slight edge in durability due to more implants.

Fonctionnalité	Arc simple All-on-4	Full Mouth All-on-4
Nombre d'implants	4 implants per arch	8 implants (4 per arch)
Stabilité	High stability	Higher stability, especially for severely resorbed jawbone
Immediate Functionality	Designed for immediate loading	Designed for immediate loading
Délai de récupération	Shorter recovery time	Longer recovery time
Customization	Limited customization options	More customization options for natural look and feel
Longévité	Designed to be long-lasting	Potentially more durable due to additional support

All-on-4 Single Arch: Benefits and Pros

• Moins invasif: All-on-4 is less invasive than traditional implant methods, reduces complications and recovery time (2).

• Immediate Functionality: All-on-4 implants are designed for immediate loading, patients can use their new teeth shortly after surgery. That’s a big advantage for many patients (3).

• Preserves Healthy Teeth: All-on-4 implants help preserve healthy teeth by avoiding the need for adjacent teeth to be altered.

• Ideal for Multiple Missing Teeth: All-on-4 implants are an ideal solution for patients with multiple missing teeth.

Contraindications and Risks of Prosthetic Teeth

• Limited Support: Single arch implants may not offer the same support as full mouth implants especially if the jawbone is severely resorbed (1).

• Esthétique: Single arch implants may not offer the same customization as full mouth implants, which can impact overall oral health.

  
  

  This is a concern for patients who are sensitive about the aesthetics of their implants.

• Future Complications: Single arch implants may require additional procedures in the future if the opposite arch needs to be treated, that will add to the overall cost and complexity of the treatment.

• Prothèses dentaires traditionnelles: Traditional dentures can lead to discomfort and instability compared to All-on-4 implants.

  
  

  Traditional dentures are removable and can shift or move, causing issues that All-on-4 implants can mitigate by offering greater stability and a natural feel.

All-on-4 Full Mouth

All-on-4 Full Mouth Benefits

• Total Rehabilitation: Full mouth implants is a total solution for patients who need to replace all their teeth and have a natural look and feel that can improve their quality of life (2).

• Taux de réussite élevé: Long term studies show that All-on-4 full mouth has high success rate, 98% survival rate over 3-17 years (2).

• Comprehensive Solution: All-on-4 full mouth implants are a comprehensive solution for patients with extensive tooth loss, including single missing tooth.

• Better Chewing: Full mouth implants can restore the patient’s chewing function to near normal, patients can eat wide variety of food without restrictions (3).

• Streamlined Option: While multiple single tooth implants are an option, All-on-4 full mouth implants offer a more streamlined and stable solution.

Contraindications and Challenges: Bone Density

• Higher Cost: Full mouth implants are more expensive than single arch implants, that’s a big barrier for many patients (1).

• More Complex: The procedure for full mouth implants is more complex and may require additional surgery, that will increase the risk of complications (2).

• Récupération plus longue: Full mouth implants take longer recovery time than single arch implants, that’s a challenge for patients who need to get back to their normal activities fast.

Study Duration	Taux de réussite	Key Findings
3-17 years	Up to 98%	High success rate for full-arch rehabilitation using the All-on-4 concept, with risk factors for survival rate analyzed.
Longitudinal study in Japanese patients	Consistent success rate across the study duration	Demonstrates the effectiveness and reliability of the All-on-4 concept for fixed full-arch rehabilitation.

All-on-4 Upper Arch vs Lower Arch

Upper Arch All-on-4: Special Considerations

• Esthétique : Upper arch implants require more planning to achieve natural look and feel as they are more visible than lower arch implants (2).

• Densité osseuse : Upper jawbone is softer and less dense than lower jawbone, that will affect the stability of the implants (1).

• Sinus Lift: In some cases upper arch implants may require sinus lift to ensure there is enough bone volume to support the implants.

Lower Arch All-on-4 Implants: Important Considerations

• Chewing: Lower arch implants is key to restore the patient’s chewing function as the lower jaw is where most of the chewing action happens (3).

• Tongue and Lip Support: Lower arch implants must be placed to support the tongue and lips properly to ensure good speech and aesthetics.

• Résorption osseuse : Lower jawbone is more prone to bone loss and resorption than upper jawbone, which can affect the long-term stability of the implants.

Conclusion et enseignements clés :

Principaux enseignements:

• All-on-4 Single Arch: For patients who need to replace one arch of teeth, the All-on-4 single arch is a type of dental implant that offers a less invasive procedure with immediate functionality.

• Full Mouth All-on-4: For patients with extensive missing teeth, the full mouth All-on-4 is a comprehensive solution that provides total rehabilitation, long-term stability, and customization.

• Upper vs Lower Arch: Each arch has its own considerations, upper arch is for aesthetics and lower arch is for chewing function.

Conclusion: Choosing between All-on-4 single arch and full mouth dental implants requires careful consideration of several factors, number of implants, recovery time, cost and customization. By understanding these differences patients can make informed decision that suits their needs.

FAQ

Références

1. Wu AY, Hsu JT, Fuh LJ, Huang HL. Biomechanical effect of implant design on four implants supporting mandibular full-arch fixed dentures: In vitro test and finite element analysis. J Mech Behav Biomed Mater. 2019;98:103678. doi: 10.1016/j.jmbbm.2019.103678

   Article : Biomechanical effect of implant design on four implants supporting mandibular full-arch fixed dentures: In vitro test and finite element analysis

2. Kanno T, et al. The All-on-four concept for fixed full-arch rehabilitation of the edentulous maxilla and mandible: a longitudinal study in Japanese patients with 3–17-year follow-up and analysis of risk factors for survival rate. J Clin Med Res. 2022;14(3):153-162. doi: 10.14740/jocmr4518

   Article : Le concept All-on-four pour la réhabilitation fixe de l'arcade complète du maxillaire et de la mandibule édentés : une étude longitudinale chez des patients japonais avec un suivi de 3 à 17 ans et une analyse des facteurs de risque pour le taux de survie.

3. Siddiqui AA, et al. Less Is More: A Case Report on All-on-4 Prosthesis. J Clin Diagn Res. 2023;17(9):ZD01-ZD04. doi: 10.7860/JCDR/2023/63592.18871

   Article : Less Is More: A Case Report on All-on-4 Prosthesis