Ante’s law emphasizes the biomechanical stability of fixed partial dentures by ensuring adequate support from abutment teeth. The combined periodontal ligament (PDL) area of abutment teeth should equal or exceed that of the teeth being replaced to distribute occlusal forces effectively and prevent overloading. This principle helps in selecting abutments with sufficient root surface area, enhancing the longevity of the prosthesis and protecting the supporting structures from damage. It is a critical guideline in treatment planning for fixed partial dentures to maintain periodontal health and prosthesis success.

Reference: Prosthodontics, Shillinburg, Edition 5.