ORTODONZIA

The course aims at teaching the principles of orthodontic diagnosis, clinical examination and treatment planning.

1) to teach to the students the craniofacial growth; the discrepancies of maxillary and mandibular bone on the three space planes; the cephalometric analysis, examination of the space analysis in order to provide a correct orthodontic diagnosis of dento-skeletal pathologies of craniofacial complex (to distinguish I class from the II and from the III); identify asymmetry, impacted teeth, dental agenesis, dental overcrowding).

2) To know which are braces and orthopedic implants and how they act in the oral cavity.

I. Radiographic examination

• Mention about cranium posterior-anterior teleradiography

• Intraoral radiography

• Hand radiography

• Photograph examination:

o Intraoral and extra oral photograph

o Classification of oral disharmony acc. To RICKETTS

II. Therapy

• Treatment Goals:

a) Basic:

1. Centre line

2. Occlusal transverse connection

3. Rotation

4. Mesiodistal inclination

5. Neuromuscular function

6. Included teeth

7. Dento-dental disharmonies

b) Complex:

1. Space

2. Shape (1:APO)

3. Dental OVJ

4. Dental OVB

5. Skeletal class (or OVJ S)

6. Skeletal vertical dimension

7. Mesiodistal occlusion connection

III. Orthodontic therapy

• Introduction

• Removable devise: retentive elements, active elements

• Fixed device: retentive elements as

a) Brackets: types and cementing techniques

b) Rubber band: I, II, III classes, verticals, crisscrossed

c) Headgear

d) Biomechanics of I class with extraction acc. To RICKETTS

e) Biomechanics of II class without extraction

f) WILSON bimetric arch

IV. Orthopedic therapy

• Orthopedic headgear:

a) Introduction

b) Direct headgear: chin cup

c) Indirect headgear: low-pull, high-pull, straight pull, vertical headgear, DELAIRE headgear (inverted headgear), HICKHAM headgear, combined headgear (T. E. Activator)

• Functional orthopedic therapy

o Definition

o Pronciples

o Classification of Herbst

a) Activator of I generation (Andersen)

b) Activator of II generation (Bionator, Bimier)

c) Activator of III generation (Frankel)

V. Contention

• Introduction

• Lingual arch (fixed device)

• Removable devices

a) Hawley plates

b) Metallic skeletal plates

c) Crozat braces

d) Activator

e) Positioner (introduction and set up)

Proffit - Fields - Sarver – Ackerman: ORTODONZIA MODERNA
Editore: Edra Masson, 2013
Nanda: BIOMECCANICA IN ORTODONZIA CLINICA
Editore: Masson