PerioMechanics

Regenerate · Restore · Anticipate · Prevent

Gums are not a frame around a tooth.

Gums carry bite force. They have a blood supply. Planning should treat them like living structure.

PerioMechanics is a public teaching lab by a periodontist in Zagreb. One glance, then a picture. Then as deep as you want.

Start here

One plate · five minutes · no login

Plate I — periodontium as a systemFour tissues, one load path1 Enamel / dentin2 Cementum interface3 PDL + microvascular bed4 Cortical plate / cancellous core
Plate I — four tissues, one load path. The organ that holds a tooth.

Start here

For everyone

Patients, referring dentists, students. Short sentences. Clear plates. Begin with the picture of the tissues that hold a tooth.

Open the first plate →

For clinicians & researchers

The same site, in depth

Six lab modules. An FEA and perfusion teaching model. A Semmelweis collaboration note. Journal essays in clinic language.

LabSimulateSemmelweisJournal

Three facts the plan must name

You do not need a solver to start. You need three words.

  1. Plate IV — occlusal force vectorsF at angle θAxial vs shear at the crestF cos θ → distributed in PDLF sin θ → crestal concentrationHotspot: crestal lip

    Load

    Bite is a direction, not only a number. Angle changes where the peak sits. The crest notices.

  2. Plate III — PDL perfusionVascular bed in the ligamentSolid network + fluid phasePerfusion ON dissipates a peakPerfusion OFF raises the markerField literature: hydro-mechanical PDL coupling; bioheat with blood flow.

    Blood

    The ligament around a root is alive. If it cannot be perfused, its behaviour is no longer the one in the textbook.

  3. Plate I — periodontium as a systemFour tissues, one load path1 Enamel / dentin2 Cementum interface3 PDL + microvascular bed4 Cortical plate / cancellous core

    Plan

    A beautiful 3D surface is necessary. It is not sufficient. Materials and a vascular bed still have to enter the plan.

The laboratory

Six modules, in order. Each has a plate, a thesis, and a sentence you can take to the chair.

Open the lab

  1. Module 01

    The periodontium as a system

    Bone, PDL, cementum, vascular bed

    Next →

  2. Module 02

    From sketch to FEA

    Geometry, materials, boundary conditions — and what not to simplify

    Next →

  3. Module 03

    PDL perfusion

    Hydro-mechanical coupling — blood flow changes thermal and mechanical results

    Next →

  4. Module 04

    Occlusal force vectors

    von Mises, principal stress, crestal bone, and regeneration under load

    Next →

  5. Module 05

    Regenerative constraint

    GTR, defect morphology, papilla, root coverage — what mechanics will allow

    Next →

  6. Module 06

    Peri-implantitis initiation mechanics

    Beyond plaque-only models — the missing load path around an implant

What you will find

Pictures of the organ. A teaching model you can drag. Essays from the chair. A note for Semmelweis and Dent.AI on a complementary mechanics layer — not a clone of the virtual periodontal patient.

Educational and illustrative teaching models. Not a medical device. Not for diagnosis, treatment planning, or patient-specific simulation.

Who it is for

  • Anyone who has been told “the gum” as if it were a gasket.
  • Students who want plates before papers.
  • Periodontists and engineers who want FEA and perfusion named in public.

About the author