SDF · Framework Logic

Force & stabilitywhen load determines what survives.

Force is invisible — but it determines what survives. Teeth rarely fail because they are “weak.” They fail because force concentrates on compromised structure. Grinding, bite imbalance, missing molars, and shifting contacts redistribute load. When load concentrates on thin enamel, old margins, cracked cusps, or fatigued dentin, structural breakdown becomes predictable. Within the Structural Decision Framework (SDF), force and stability are evaluated as a system — not a symptom.

How SDF evaluates force & stability
Structure
Where is the tooth thin, restored, cracked, or previously weakened? Force exploits the weakest geometry.
Force
Is load distributed across the arch — or concentrated on a few teeth? Are contacts balanced or overloaded?
Timing
Is this early instability that can be redirected — or late-stage fatigue that needs reinforcement?
Long-term stability
If this force pattern continues for 5–20 years, what fails first: enamel, margins, cusps, implants, or the bite itself?
Why stability changes over time

Teeth are not static materials. With age, enamel thins, dentin fatigues, microfractures accumulate, and old restorations alter load pathways. Missing teeth can shift force forward and turn front teeth into load-bearing teeth. When grinding is unmanaged, lateral forces create stress concentrations that accelerate structural fatigue. What looks stable at 35 may collapse at 65 — not because of one event, but because force compounds over time.

Applied force & stability scenarios

These scenarios apply force modeling to real decisions — where load concentrates, how instability progresses, and when reinforcement changes outcomes.

Framework logic first. Applied scenarios next. Deep guides after that.