In the field of contemporary implant dentistry, the relationship between mechanical overload and marginal bone loss (MBL) around dental implants is one of the most contentious paradigms. Clinical evidence challenges traditional assumptions that have previously guided treatment protocols for decades. Although finite element analyses and theoretical models have provided attractive insights into stress distribution patterns around implants, these approaches can only predict relative force magnitudes between various loading scenarios, not establish thresholds for bone loss. The limitation of finite element modeling lies in its inability to translate mechanical stress predictions into clinically relevant biological outcomes. This is due to the fact that these analyses are unable to ascertain whether increased stress levels are inherently destructive or potentially beneficial for bone remodeling and densification in accordance with Wolff’s law. The assumption that mechanical overload causes peri-implant bone loss derives not from direct clinical evidence demonstrating causation between excessive occlusal forces and progressive bone loss, but rather from early extrapolations of orthopedic failure mechanisms and theoretical biomechanical models.

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Rethinking Mechanical Overload in Dental Implants

  • Mohammad Hosseini Hooshiar

摘要

In the field of contemporary implant dentistry, the relationship between mechanical overload and marginal bone loss (MBL) around dental implants is one of the most contentious paradigms. Clinical evidence challenges traditional assumptions that have previously guided treatment protocols for decades. Although finite element analyses and theoretical models have provided attractive insights into stress distribution patterns around implants, these approaches can only predict relative force magnitudes between various loading scenarios, not establish thresholds for bone loss. The limitation of finite element modeling lies in its inability to translate mechanical stress predictions into clinically relevant biological outcomes. This is due to the fact that these analyses are unable to ascertain whether increased stress levels are inherently destructive or potentially beneficial for bone remodeling and densification in accordance with Wolff’s law. The assumption that mechanical overload causes peri-implant bone loss derives not from direct clinical evidence demonstrating causation between excessive occlusal forces and progressive bone loss, but rather from early extrapolations of orthopedic failure mechanisms and theoretical biomechanical models.