Evaluation of Effects of Bracket's Slot System on the Quantity and Quality of Teeth Movements During Orthodontic Leveling and Alignment Stage

Evaluation of Effects of Bracket's Slot System on the Quantity and Quality of Teeth Movements During Orthodontic Leveling and Alignment Stage : A Prospective Clinical Study

Evaluation of effect of bracket slot system on the quality and quantity of tooth movement during leveling and alignment stage

Inclusion Criteria:

• An age range from14 to18 years. All permanent teeth are erupted(3rd molar not included).
• Angle class I malocclusion with normal facial proportions.
• Moderate to severe crowding in the lower dental arch asassessed by lett irregularity Index that require treatment with fixed appliance using extraction approach.
• There is no previous orthodontic treatment.

Exclusion Criteria:

• Poor oral hygiene or periodontally compromised teeth.
• Craniofacial anomalies or previous history of trauma, bruxism, or Parafunctions.
• Uncooperativepatient.