How do you get optimal long-term treatment outcomes for your patients? The standard norm (1-3) regarding dental implant treatment success from 1986 does not reflect what is possible to achieve today. There are no reasons why the clinician or the patient should accept a marginal bone loss of up to 1.5 millimetres based on a standard set 25 years ago.
With our strong focus on research, science and documentation, we have followed the maintenance of the marginal bone level on our own system for many years and noted that the marginal bone levels around Astra Tech implants have been extraordinarily well maintained. When comparing our exceptional result to the current standard norm (1-3), it turns out that there is a huge gap between what can be achieved with the Astra Tech Implant System™ and what is currently accepted as a successful treatment result.
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Astra Tech Implant System™ level
A literature search of the Astra Tech Implant System and marginal bone level change was performed in January 2011. A total of 32 prospective, full cohort studies (4–35) reporting on implant treatment applying a standard protocol* were reviewed and the conclusion is that the Astra Tech Implant System has an average marginal bone level reduction of less than 0.3 millimetres after the first year of loading and remains stable after 5 years – a result that is five times better compared to the current standard norm (1-3).
Standard norm
The red line in the graph illustrates what has, until now, been perceived as the standard norm (1-3) for acceptable marginal bone loss related to dental implant treatment. The figures are based on the three different articles stated next to the graph above. The articles describe the acceptable marginal bone loss to be less than 1.0 millimetre during the first year of loading and less than 0.2 millimetres annually during the following year. Thereafter, the marginal bone loss has been described to become stable, resulting in a marginal bone loss of approximately 1.5 millimetres after five years of loading.
*Standard protocol means treatment without bone augmentation,without immediate installation and/or without immediate loading.