Orthodontic_Study-Models_Presentation.pptx

Models in orthodontics studies in brief

1. Models in Orthodontics Comprehensive Overview from Traditional to Digital Models Your Name & Date

2. Introduction • Definition of Models in Orthodontics • Importance • Serve as replicas of patient’s dentition and structures.

3. History of Orthodontic Models • Early Models: The use of plaster models in dental medicine. • Significant Contributions: Pierre Fauchard's contributions, rise of orthodontics in the 19th century.

4. Gnathostatic Models • Definition: Static positioning of the jaws recorded in orthodontic models. • Applications: Evaluating occlusal relationships.

5. Evolution of Orthodontic Models • Traditional Plaster Models • Improvements: More accurate impression materials, articulated models.

6. What Are Orthodontic Models? • Definition: Physical or digital replicas of a patient's dental structures. • Types: Plaster and Digital models.

7. Uses of Orthodontic Models • Diagnosis and treatment planning. • Patient education. • Record keeping and monitoring.

8. Objectives of Orthodontic Models • Accurate representation of dentition. • Analyzing occlusion, crowding, arch form, and treatment efficacy.

9. ABO Guidelines for Models • Accurate representation of occlusal relationships. • High-quality impressions and precise trimming.

10. Fabrication of Orthodontic Models • Materials: Typically dental plaster (stone, alginate). • Steps: Impressions, pouring, trimming, and polishing.

11. Impression Materials Used • Alginate: Commonly used for making dental impressions. • Silicone: Higher precision but more costly.

12. Impression Making Process • Steps: Tray selection, material preparation, impression taking, inspection. • Common Issues: Voids, bubbles, distortion.

13. Recent Advances in Orthodontic Models • Digital Models: Intraoral scanning, CAD/CAM, 3D printing. • Advantages: Accuracy, faster fabrication, easier storage.

14. Comparison: Plaster vs. Digital Models • Plaster: Low-cost, fragile, time-consuming. • Digital: High accuracy, easy storage, expensive.

15. Studies and Research • Comparisons of digital and plaster models. • Accuracy of digital models for treatment planning.

16. References • Graber, Vanarsdall, Vig: Orthodontics: Current Principles and Techniques. • Bishara: Textbook of Orthodontics. • Recent studies on digital models (2022).