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Copy of biomech1 /certified fixed orthodontic courses by Indian dental academy

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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078

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Copy of biomech1 /certified fixed orthodontic courses by Indian dental academy

3. 3. Center of resistance www.indiandentalacademy.com
4. 4. Center of resistance • Cres varies with root length and alveolar crest height www.indiandentalacademy.com
5. 5. Single point force www.indiandentalacademy.com
6. 6. Single point force www.indiandentalacademy.com
7. 7. Moment If the line of action of a force is at a distance from the Cres, the force will produce some rotation. The potential for rotation is measured as a moment www.indiandentalacademy.com
8. 8. Moment Magnitude Direction Clockwise Counter- clockwise www.indiandentalacademy.com
9. 9. Moment of force First order second order www.indiandentalacademy.com third order
10. 10. Couple Two equal and opposite forces separated by a perpendicular distance. Equal and opposite forces that are not collinear. www.indiandentalacademy.com
11. 11. Moment of couple first order second order www.indiandentalacademy.com
12. 12. Moment of couple Third order rotation where the two forces of the couple are not located equidistant from Cres www.indiandentalacademy.com
15. 15. Equillibrium Sum of the forces acting in any plane equal zero. Sum of the moments in any plane equal zero. www.indiandentalacademy.com