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Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
Analysis of mandibular position using different methods of location
Farley Augusto Venturelli1, Paulo Renato Junqueira Zuim, Rosse Mary Falcón Antenucci
1Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University, Brazil.
Acta Odontologica Latinoamericana : AOL
|March 23, 2010
Summary
This study found similar condylar positions in the mandibular fossa across maximum intercuspation, occlusal splint, and Lucia jig conditions in asymptomatic individuals. Transcranial radiography appears reliable for assessing condylar position.
Area of Science:
- Dentistry
- Biomechanics
- Medical Imaging
Background:
- The ideal condylar position within the mandibular fossa is debated.
- Centric relation (CR) is a common reference, but its physiologic nature is questioned.
Purpose of the Study:
- To evaluate condylar position in asymptomatic individuals under three different occlusal conditions.
- To compare condylar positions at maximum intercuspation (MI), with an occlusal splint, and with a Lucia jig.
Main Methods:
- Magnetic Resonance Imaging (MRI) was used to visualize condylar position.
- Transcranial radiography provided imaging analysis.
- Analysis of the horizontal axis of rotation from mounted casts assessed mandibular displacement.
Main Results:
- Mandibular displacement was observed in CR, MI, and occlusal splint positions, confirmed by rotational analysis.
- No statistically significant differences in condylar positions were found among the analyzed conditions via imaging.
- Transcranial radiography demonstrated reliability in assessing condylar position.
Conclusions:
- The evaluated condylar positions (MI, occlusal splint, Lucia jig) were similar in asymptomatic individuals.
- Transcranial radiography is a reliable method for analyzing condylar position in the temporomandibular joint.
