Fixed appliances condensed

Question 1

Phases of orthodontic treatment with fixed technique

Answer 1

• Phase I-Leveling and alignment
• Phase II- Overbite control and space closure
• Phase III-Overjet control
• Phase IV-Finishing detailing
• Phase V-Retention

Question 2

• Phase I-Leveling and alignment objectives

Answer 2

• Rotation control
• Leveling and alignment of maxillary and mandibular teeth
• Posterior segment control
• Control of vertical and mesiodistal position of permanent mandibular seconf molar

Question 3

• Phase II- Overbite control and space closure

Answer 3

*Sagittal movement-retraction of canines in premolar extraction cases
* Full size stainless steel archwires used
* Sliding and loop mechanics used
* Tooth movement from force application of active elements

Question 4

• Phase III-Overjet control

Answer 4

• Aim to correct incisor position in sagittal plane
• Overjet reduction
• Full size stainless steel and TMA wires used

Question 5

• Phase IV-Finishing detailing

Answer 5

Minor tooth movements to provide:
* Ideal teeth position
* Arch co-ordination
* Residual space closure
* Normal occlusion

Question 6

• Phase V-Retention

Answer 6

• Aim to:
• Maintain result of active orthodontic treatment
• Prevent relapse of tooth malpositions and unfavourable growth in maxilla and mandible

Lasts as long as active treatment period, achieved w/ passive fixed or removable retainers and monitored by clinician