dorsal/arxiv
View SchemaA simulator for maxillo-facial surgery integrating cephalometry and orthodontia
| Authors | Georges Bettega, Yohan Payan, Benoit Mollard, Anthony Boyer, Bernard Raphaël, Stéphane Lavallee |
|---|---|
| Categories | |
| ArXiv ID | physics/0606149 |
| URL | https://arxiv.org/abs/physics/0606149 |
| Journal | Computer Aided Surgery 5(3) (2000) 156-165 |
Abstract
Objectives : This paper presents a new simulator for maxillo-facial surgery, that gathers the dental and the maxillo-facial analyses together into a single computer-assisted procedure. The idea is first to propose a repositioning of the maxilla, via the introduction of a 3D cephalometry, applied to a 3D virtual model of the patient's skull. Then, orthodontic data are integrated into this model, thanks to optical measurements of teeth plaster casts. Materials and Methods : The feasibility of the maxillo-facial demonstrator was first evaluated on a dry skull. To simulate malformations (and thus to simulate a "real" patient), the skull was modified and manually cut by the surgeon, in order to generate a given maxillo-facial malformation (with asymmetries in the sagittal, frontal and axial planes). Results : The validation of our simulator consisted in evaluating its ability to propose a bone repositioning diagnosis that will put the skull as it was in its original configuration. A first qualitative validation is provided in this paper, with a 1.5-mm error in the repositioning diagnosis. Conclusions : These results mainly validate the concept of a maxillo-facial numerical simulator that integrates 3D cephalometry and guarantees a correct dental occlusion.
{
"annotation_id": "e4478e11-1d9d-4336-9b53-b3fa7b7244f3",
"date_created": "2026-03-02T18:01:10.591000Z",
"date_modified": "2026-03-02T18:01:10.591000Z",
"file_hash": "9bdfedff8c449c604654fd89f85ca913d65d09779e45ec649bebdadd4f0cff59",
"private": false,
"record": {
"abstract": "Objectives : This paper presents a new simulator for maxillo-facial surgery,\nthat gathers the dental and the maxillo-facial analyses together into a single\ncomputer-assisted procedure. The idea is first to propose a repositioning of\nthe maxilla, via the introduction of a 3D cephalometry, applied to a 3D virtual\nmodel of the patient\u0027s skull. Then, orthodontic data are integrated into this\nmodel, thanks to optical measurements of teeth plaster casts. Materials and\nMethods : The feasibility of the maxillo-facial demonstrator was first\nevaluated on a dry skull. To simulate malformations (and thus to simulate a\n\"real\" patient), the skull was modified and manually cut by the surgeon, in\norder to generate a given maxillo-facial malformation (with asymmetries in the\nsagittal, frontal and axial planes). Results : The validation of our simulator\nconsisted in evaluating its ability to propose a bone repositioning diagnosis\nthat will put the skull as it was in its original configuration. A first\nqualitative validation is provided in this paper, with a 1.5-mm error in the\nrepositioning diagnosis. Conclusions : These results mainly validate the\nconcept of a maxillo-facial numerical simulator that integrates 3D cephalometry\nand guarantees a correct dental occlusion.",
"arxiv_id": "physics/0606149",
"authors": [
"Georges Bettega",
"Yohan Payan",
"Benoit Mollard",
"Anthony Boyer",
"Bernard Rapha\u00ebl",
"St\u00e9phane Lavallee"
],
"categories": [
"physics.med-ph"
],
"journal_ref": "Computer Aided Surgery 5(3) (2000) 156-165",
"title": "A simulator for maxillo-facial surgery integrating cephalometry and orthodontia",
"url": "https://arxiv.org/abs/physics/0606149"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "efcbb08a-6ca8-4c25-918b-8893f123c785",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}