[Does evidence of implant occlusion exist?]

Area of Science:

• Dental Implantology
• Biomechanical Engineering
• Epidemiology

Context:

• Investigates mechanical risk factors in implant occlusion.
• Reviews epidemiologic studies and basic research on implant overload.
• Addresses the implant-protected occlusion concept when natural teeth are adjacent to implants.

Purpose:

• To critically evaluate the mechanical risk factors associated with implant occlusion.
• To assess the validity and potential risks of the implant-protected occlusion concept.
• To explore the influence of various loading conditions on dental implants.

Summary:

• The implant-protected occlusion concept, which advocates reduced initial mechanical load on implants adjacent to natural teeth, lacks substantial supporting studies.
• Non-axial loads, large cantilevers, and offset loading with large occlusal tables generate significant bending moments, potentially leading to implant overload.
• While mechanical factors are discussed, there is a lack of epidemiologic evidence on the biological consequences of implant overloading.
• Meta-analysis indicates biological and prosthetical risks associated with the connection of natural teeth and implants.

Impact:

• Highlights the need for further research into the biomechanics of implant occlusion.
• Informs dental professionals about potential risks and limitations of current occlusal concepts for implants.
• Suggests a re-evaluation of implant-protected occlusion strategies based on biomechanical principles and emerging evidence.