14 Principle of Spring Design | MSI Ortho Academy

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06 (CE=24) Biomechanics

1 Basic Concept in Biomechanics 2021

1 Rule of Mass (18:54)
2 Concept of force (14:46)
3 Handling of force (15:31)
4 Resultant force (13:35)
5 Type of tooth movement (14:30)
6 Center of rotation (18:27)
7 Moment of Couple (14:13)
8 Force system and Crot (11:29)
9 Force system and equivalent force (16:18)
10 Moment to force ratio (14:55)
11 Static equilibrium (23:46)
12 Creative wire v-bend (12:40)
13 Objective of wire bending (18:29)
14 V-bend analysis (18:53)
15 Step bend analysis (12:27)
16 Clinical application (11:42)
17 V-Bending location (11:32)
18 Couple force system (14:40)
19 One couple force system (15:32)
20 Two couple force (19:07)
21 Clinical Application (10:17)
22 Multiple couple force system (12:54)
23 Example 1 (19:53)
24 Example 2 (13:59)
25 Example 3 (13:12)

2 Loop and Spring Design 2021

26 Principle of loop and spring design (14:03)
27 Objective of loop and spring design (12:10)
28 Spring design analysis lecture (14:18)
29 Loop and V-bend (13:57)
30 Neutral Activation (14:00)
31 Spring design and clinical application (11:02)

3 Sliding and non-sliding mechanic 2021

32 Sliding non sliding mech (13:17)
33 V-bend and sliding mech (16:02)

4 Friction in orthodontics 2021

34 Friction (13:48)
35 Sliding mechanic and friction (10:38)
36 Friction clinical application (13:02)
37 Bracket type and friction (16:56)
38 Stiffness and friction (14:15)
39 Binding and friction (11:04)
40 Anchorage and friction (12:17)
41 Force delivery (15:03)
42 summary (13:52)

5 Anchorage in Orthodontics 2021

43 What is Anchorage (11:16)
44 Definition of anchorage (13:40)
45 Concept of anchorage (15:19)
46 concept of anchorage 2 (17:20)
47 concept of anchorage 3 (10:17)
48 Anchorage classification (12:59)
49 Objective of anchorage classification (13:29)
50 Determinant of anchorage requirement (13:46)
51 Extraction versus non extraction (17:39)
52 Anchorage requirement and inclination (17:04)
53 Anchorage requirement and midline (14:21)
54 Anchorage requirement and molar relationship (19:27)

6 Source of Anchorage 2021

55 Anchorage preparation (17:15)
56 stop and loop (12:51)
57 Source of anchorage and alveolar bone (13:09)
58 Growth and anchorage (16:13)
59 Reduce anchorage strain (21:12)

7 Biology of Tooth Movement 2021

60 Basis of Biology biomechanics question (13:25)
61 Supporting tissue (15:57)
62 Theory of tooth movement (14:21)
63 Theory of tooth movement (16:21)
64 Active stabiliser (16:26)
65 Frontal resorption (13:43)
66 Duration of Force (9:47)
67 Medical disorder to force (12:15)

8 Selective Alveolar (De)corticotomy 2021

68 Introduction to SAD (13:40)
69 Rapid Accelerated Phenomenon (RAP) (13:43)
70 Window of opportunity from SAD (16:59)
71 The Design of Decortication (10:31)
72 Conclusion (14:36)

9 Mandibular Uprighting Clinal Example 2021

73 Mandibular Uprighting Clinal Situation (13:46)
74 Basic Biomechanics (10:08)
75 Clinical Application (13:10)
76 Force System Analysis (12:59)
77 Clinical Analysis (19:11)
78 Treatment Option (14:11)
79 Close space 1 (10:25)
80 close space 2 (16:05)
81 upright impacted molar (12:30)
82 upright tilted molar (18:58)
83 T-loop management (19:40)

Hand out (Download) 2021

9.1 basic principle (20) AVS 4 PDF
9.3 & 9.4 loop design & sliding non sliding mech (22) AVS PDF
9.5 anchorage (23) AVS 4 PDF
9.6 biologic (24) AVS 4 PDF
9.7 SAD PDF
9.8 Biomech Upright molar (25) AVS 4 PDF

ติว ก่อนสอบ 2021

1 Moment of force (10:01)
2 Force system (10:29)
3 M/F ratio (10:54)
4 Segmented arch (9:08)
5 Continuous arch FS calculation (11:19)
6 Equivalent force system (11:57)
7 Anchorage (10:02)
8 Anchorage Classification (16:31)
9 Friction (20:07)
10 Clinical Application. (17:37)

Chapter 1 Basic Principle in Biomechanics 2023

1 Rule of Mass (26:15)
2 Forces Concept in Orthodontics (24:46)
3 Type of Tooth Movement (21:02)
4 Moment of Forces (24:31)
5 Moment of Couple (21:43)
6 Force System and Equivalent force System (27:04)
7 Moment to Force Ratio (26:57)
8 Static Equilibrium (30:18)
9 Static Equilibrium 2 and example (18:25)
1 Rule of Mass (26:15)
2 Forces Concept in Orthodontics (24:46)
3 Type of Tooth Movement (21:02)
4 Moment of Forces (24:31)
5 Moment of Couple (21:43)
6 Force System and Equivalent force System (27:04)
7 Moment to Force Ratio (26:57)
8 Static Equilibrium (30:18)
9 Static Equilibrium 2 and example (18:25)

Chapter 2 The Creative Wire Bending in Orthodontics

10 Creative V-Bend Wire Bending (52:02)
11 Bending free & The fact of V- Bend (24:52)
12 Classification of Force System (37:06)
13 Exercise for V-Bend Application (27:27)
10 Creative V-Bend Wire Bending (52:02)
11 Bending free & The fact of V- Bend (24:52)
12 Classification of Force System (37:06)
13 Exercise for V-Bend Application (27:27)

Chapter 3 Loop and Spring Design

14 Principle of Spring Design (16:28)
15 Loop Classification and Experiment (38:19)
16 Sliding vs Non-Sliding (11:27)
17 Friction (28:11)
18 Friction Management (19:49)
14 Principle of Spring Design (16:28)
15 Loop Classification and Experiment (38:19)
16 Sliding vs Non-Sliding (11:27)
17 Friction (28:11)
18 Friction Management (19:49)

Chapter 5 Biologic Basis of Orthodontic Therapy

23 Tooth Supporting Tissue and The Theories of Tooth Movement (38:51)
25 Physiologic response to sustained force against a tooth (13:52)
26 Tooth movement efficiency & duration of force (18:28)
27 Relevant Medical Disorders to Orthodontic Force & Theories of tooth eruption (19:44)
24 Active Stabilizer (8:04)
23 Tooth Supporting Tissue and The Theories of Tooth Movement (38:51)
25 Physiologic response to sustained force against a tooth (13:52)
26 Tooth movement efficiency & duration of force (18:28)
27 Relevant Medical Disorders to Orthodontic Force & Theories of tooth eruption (19:44)
24 Active Stabilizer (8:04)

Chapter 4 Anchorage in Orthodontics

19 Anchorage Concept (30:28)
20 Anchorage Classification and Objective (12:56)
21 Determinant of Anchorage Requirement (24:16)
22 Source of Anchorage (36:01)
19 Anchorage Concept (30:28)
20 Anchorage Classification and Objective (12:56)
21 Determinant of Anchorage Requirement (24:16)
22 Source of Anchorage (36:01)

Hand out

1 Basic Principle Mechanic
2 Creative Wire V-bend
3 Loop & Spring Design
4 Hand out of Anchorage in Orthodontics
5 Biologic Basis of Orthodontic Therapy
1 Basic Principle Mechanic
2 Creative Wire V-bend
3 Loop & Spring Design
4 Hand out of Anchorage in Orthodontics
5 Biologic Basis of Orthodontic Therapy

7.1 Creative V-bend 2023

7.21 Introduction (13:51)
7.22 Force system (16:39)
7.23 One couple force system (21:53)
7.24 Two couple force system (19:49)
7.25 Multiple couple force system (10:56)
7.26 Type of basic creative v-bend (14:37)
7.27 Creative V-bend analysis (19:05)
7.28 Step bend (12:26)
7.29 VS Bend (12:42)
7.30 VS Bend 2 (14:04)
7.31 Combination of step bend and v-bend (17:24)
7.32 V-bend analysis (14:45)
7.33 Static equilibrium (13:55)
7.34 Static equilibrium and v-bend (16:38)
7.35 Summary of v-bend static equilibrium (13:52)
7.36 Clinical application (18:20)
7.37 Clinical application (11:05)
7.21 Introduction (13:51)
7.22 Force system (16:39)
7.23 One couple force system (21:53)
7.24 Two couple force system (19:49)
7.25 Multiple couple force system (10:56)
7.26 Type of basic creative v-bend (14:37)
7.27 Creative V-bend analysis (19:05)
7.28 Step bend (12:26)
7.29 VS Bend (12:42)
7.30 VS Bend 2 (14:04)
7.31 Combination of step bend and v-bend (17:24)
7.32 V-bend analysis (14:45)
7.33 Static equilibrium (13:55)
7.34 Static equilibrium and v-bend (16:38)
7.35 Summary of v-bend static equilibrium (13:52)
7.36 Clinical application (18:20)
7.37 Clinical application (11:05)

*** V-Bend PDF 2023

Creative V-bend
Creative V-bend

7 Biomechanics 2023

7.1 Introduction (16:03)
7.2 Center of mass (10:53)
7.3 Center of resistance (11:20)
7.4 Force (12:23)
7.5 Handling of force (14:50)
7.6 Line of force (18:41)
7.7 Center of rotation (21:19)
7.8 Moment of force and moment of couple 1 (15:42)
7.9 Moment of force and moment of couple 2 (10:11)
7.10 Moment of force (20:16)
7.11 Moment of couple (22:52)
7.12 Mc in Removable appliance (12:12)
7.13 Force system (14:47)
7.14 Equivalent force system (12:19)
7.15 M/F ratio (20:48)
7.16 Static equilibrium (11:13)
7.17 Pre torque (10:30)
7.18 Clinical app 1 (12:16)
7.19 Clinical app 2 (13:41)
7.20 Clinical app 3 (7:58)
7.1 Introduction (16:03)
7.2 Center of mass (10:53)
7.3 Center of resistance (11:20)
7.4 Force (12:23)
7.5 Handling of force (14:50)
7.6 Line of force (18:41)
7.7 Center of rotation (21:19)
7.8 Moment of force and moment of couple 1 (15:42)
7.9 Moment of force and moment of couple 2 (10:11)
7.10 Moment of force (20:16)
7.11 Moment of couple (22:52)
7.12 Mc in Removable appliance (12:12)
7.13 Force system (14:47)
7.14 Equivalent force system (12:19)
7.15 M/F ratio (20:48)
7.16 Static equilibrium (11:13)
7.17 Pre torque (10:30)
7.18 Clinical app 1 (12:16)
7.19 Clinical app 2 (13:41)
7.20 Clinical app 3 (7:58)

7.2 Lopp and spring design 2023

7.38 Loop and spring design (17:57)
7.39 Moment force ratio (15:45)
7.40 Spring objectives (19:27)
7.41 T- loop (19:32)
7.42 T-loop adjustment (14:58)
7.43 Neutral Activation (19:39)
7.44 Sliding and non-sliding mechanics (13:58)
7.45 Comparison (14:23)
7.38 Loop and spring design (17:57)
7.39 Moment force ratio (15:45)
7.40 Spring objectives (19:27)
7.41 T- loop (19:32)
7.42 T-loop adjustment (14:58)
7.43 Neutral Activation (19:39)
7.44 Sliding and non-sliding mechanics (13:58)
7.45 Comparison (14:23)

7.3 Friction 2023

7.46 Introduction (11:35)
7.47 Type of friction (12:02)
7.48 Bracket and friction (13:17)
7.49 Slot width and width (13:54)
7.50 Force delivery (11:40)
7.51 Friction in SL (10:50)
7.52 SL and normal bracket (14:44)
7.53 Binding effect (12:15)
7.54 Secure ligation (11:43)
7.46 Introduction (11:35)
7.47 Type of friction (12:02)
7.48 Bracket and friction (13:17)
7.49 Slot width and width (13:54)
7.50 Force delivery (11:40)
7.51 Friction in SL (10:50)
7.52 SL and normal bracket (14:44)
7.53 Binding effect (12:15)
7.54 Secure ligation (11:43)

7.4 Anchorage in orthodontics 2023

7.55 Introduction (19:12)
7.56 Anchorage concept (17:34)
7.57 Anchorage concept 2 (9:11)
7.58 Bio-reengineering (13:18)
7.59 Anchorage Classification (15:41)
7.60 Space gaining (9:46)
7.61 Anchorage Requirement (18:39)
7.62 Source of Anchorage (13:47)
7.63 Anchorage Management (17:48)
7.64 Skeletal anchorage (12:30)
7.65 Anchorage Supplement (14:58)
***Anchorage PDF 2023
7.55 Introduction (19:12)
7.56 Anchorage concept (17:34)
7.57 Anchorage concept 2 (9:11)
7.58 Bio-reengineering (13:18)
7.59 Anchorage Classification (15:41)
7.60 Space gaining (9:46)
7.61 Anchorage Requirement (18:39)
7.62 Source of Anchorage (13:47)
7.63 Anchorage Management (17:48)
7.64 Skeletal anchorage (12:30)
7.65 Anchorage Supplement (14:58)
***Anchorage PDF 2023

7.5 Biology of tooth movement 2023

7.66 Biology of tooth movement (12:52)
7.67 Movement direction (12:24)
7.68 Active Stabilization (17:06)
7.69 Tooth movement and duration of force (18:08)
7.70 Tooth movement acceleation (15:29)
7.71 Reduced treatment time (15:08)
7.72 SAC (19:16)
*** Stimulating biological response PDF
7.66 Biology of tooth movement (12:52)
7.67 Movement direction (12:24)
7.68 Active Stabilization (17:06)
7.69 Tooth movement and duration of force (18:08)
7.70 Tooth movement acceleation (15:29)
7.71 Reduced treatment time (15:08)
7.72 SAC (19:16)
*** Stimulating biological response PDF

7.6 Upright molar 2023

7.73 Mandibular uprighting (16:30)
7.74 Clinical Application (14:34)
7.75 Open space (25:45)
*** Upright molar PDF
7.73 Mandibular uprighting (16:30)
7.74 Clinical Application (14:34)
7.75 Open space (25:45)
*** Upright molar PDF

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14 Principle of Spring Design

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