OrthoTrussCase and consequence
See the appliance and objective, then commit to the side effect that matters before anything is engaged.
Part of OrthoTruss Education
Connect the instrument to the idea.
FPD is the biomechanics workspace. Find the surrounding lessons, study materials and external literature through Education.
Learn by topic
See the connections
Bring biology, clinical cases and related instruments together around one question.
Explore topics → Study & self-testBuild your understanding
Open study decks, self-directed courses and practice exams. Continue your existing progress.
Open study resources → Library & evidenceFollow the literature
Search published papers, revisit your saved library and check watch topics.
Open literature tools →Question-First Mechanics
A clinical decision first. The mechanics underneath it second.
Seven clinical rounds cover posterior anchorage, closing-loop control, continuous-arch effects, controlled tipping, translation, root movement, and reversed-force design. Each one carries into the Bench.
Effect and adjustment
Reveal the intended response and reciprocal cost, then change one clinically meaningful variable.
Apply in the Bench
Carry the same case into the full instrument without losing its force-system context.
One workspace, three entry points
Enter where your question begins
The clinical rounds, interactive Bench, and research tools are different depths of the same biomechanics environment—not disconnected products.
Clinical Rounds
Choose or troubleshoot mechanics
Clinical decisions first. Seven short cases: adjust one chairside variable, see the consequence, then continue in the Bench.
Open Clinical Rounds Biomechanics BenchInspect a known force system
Ten tools. Build the initial force system and read its moments, centers, reactions, and reciprocal loads.
Open the Bench Research LabTest an assumption or model
Learn and investigate with five tools for sensitivity, materials, tolerance, and uncertainty, the evidence boundary visible.
Open the Research LabSelected capabilities
Six useful ways into the Bench
These examples show the range without turning this page into a tool directory. Start with the clinical question that resembles yours; the complete collection remains one click away.
Tooth Movement & Reaction (3D)
What complete initial force system produces the intended movement, and where do the reactions go?
Build the force and counter-couple, then inspect the intended response and reciprocal load in 3D.
Cantilever Anchorage Control
Will this cantilever retract the anterior segment without tipping the posterior unit mesially?
Choose activation and inspect the molar counter-moment, reciprocal force, and tube-friction effect.
Open simulator
Explicit force-and-moment equilibrium with user-visible assumptions.
Space-Closure Loop Designer
Which loop design closes the space while controlling the vertical and rotational side effects?
Compare loop height, position, wire, and gable bends at both teeth before engagement.
Wire Engagement & Two-Bracket Effects
What does this wire deliver to each bracket after slot play, span, size, and inclination are considered?
See whether the wire is active and which tooth receives each force and couple.
Continuous-Arch Side Effects
Which neighboring teeth inherit the reaction when this tooth is leveled through a continuous arch?
Level one displaced tooth and reveal the reciprocal extrusion and moments inherited by its neighbors.
Start the round
Named mandibular 41–45 case checks signs, equilibrium, crest transport, arch mirroring, and published qualitative reaction topology.
Uncertainty & Sensitivity Lab
Which assumptions drive the modeled result, and how wide is the resulting uncertainty interval?
Propagate input ranges to output intervals and rank the modeled sources of variance.
Open simulator
Sampling and sensitivity calculations are checked against deterministic and seeded reference cases.
Know what each result means
Every tool keeps its model class, assumptions, and evidence boundary visible near the result.
Initial tendency
Force-system outputs describe the initial mechanical response, not a patient-specific treatment forecast.
No account needed
Works with no account or paid plan required. Learning progress and workspace notes stay on this device.
Evidence in context
Analytical, benchmarked, literature-calibrated, reference-data, and exploratory models are labeled distinctly.
Start with the clinical decision
Choose the consequence, see the full initial force system, adjust one variable, and continue in the Bench.
Start a clinical round