NobelActive™ - rigorously tested for quality, strength and endurance
Fatigue Testing
In 1992, Nobel Biocare developed an internal protocol for evaluating the fatigue strengths of implant and abutment designs and applications. A similar test has since been adopted as the International Standard for endosseous dental implants - ISO 14801.
The test process
This endurance test is designed to establish the maximum force at which the implant/ abutment combinations will survive when subjected to a variety of forces for 5 million cycles. Implants are mounted at an angle of 30º off axis. A cyclic force with a frequency of 14 Hz is applied to an abutment of a standardized length. This establishes the endurance strength for each implant/abutment combination.
NobelActive™ impressive endurance
In 1992 a baseline of 185 N was established for implant strength, using the original Ø3.75 Brånemark ASTM Grade 1 Titanium implants with standard abutments. By comparison, the improved endurance strengths for NobelActive™ conical implants can be seen in the table below. Zirconia abutments are fatigue tested in just the same way as Titanium.
NobelActive™ - implants safety in design
Torque Strength
NobelActive™ implants have been designed to be extremely strong. This is evident when you look at the maximum insertion torque the implants can tolerate, (282 for NobelActive™ internal Ø3.5 and 452 for NobelActive™ internal Ø4.3) which will give you peace of mind when fitting.
Implant Placement Validation Results
During the clinical studies implants were placed using various insertion torque levels up to 100 Ncm. 20% were placed with an insertion torque of 60 Ncm or higher. The study found no correlation between implant complications and insertion torque at these levels. Based on the data, from these tests, 70 Ncm was determined to be the safe maximum torque for placing NobelActive™ implants. As the table below shows, NobelActive™ implants have a huge safety margin for all diameters.