Summary of Understanding Bracket Prescription
Bracket prescriptions vary from edgewise to mb5, with differences in tip, torque, in-out rotation, and slot size.
tip is the relationship between the wire and bracket, affecting the tooth's medial or distal tipping.
Roth and MBT brackets have differences in tip, with MBT having less tip.
tip works by applying force when the wire is bent against the bracket, influenced by archwire stiffness and bracket width.
archwire stiffness, bracket width, and archwire size impact tip expression.
torque is the relationship between the wire and bracket slot, affecting buccal or lingual rotation of the tooth.
MBT system compensates for tip loss by increasing torque, especially in upper incisors.
torque expression is influenced by archwire stiffness, slot play, archwire size, slot depth, and slot size.
Overcorrection of torque is essential to account for play between wire and slot.
Bracket in-out rotation and bracket slot size also impact torque expression.
Positioning brackets higher or lower on the tooth can affect torque expression.
18 slot brackets provide better torque expression, while 22 slot brackets allow for more play and sliding.
Choose brackets based on individual teeth rather than sets for optimal results.
Speakers
- Not specified.
Notable Quotes
— 17:28 — « "Choosing brackets for teeth and not sets of brackets for dental arches." »
Category
Educational