BACKGROUND In straight wire preadjusted appliances, all the information required to position the teeth in three planes is included in the brackets placed at the midpoint of the facial axis of the clinical crown, defined by facial axis point (FA). Central to this technique is the bracket placement.Preadjusted orthodontic appliances cannot get the right tooth position with a straight wire because...

JCO/DECEMBER 2005 T lingual technique is considered to be one of the most difficult, requiring extended treatment times and often achieving less-than-satisfactory results. Firstand third-order tooth movements are complicated by the variable lingual tooth anatomy.1 Torque control is also more problematic; with the reduced interbracket distance, even small variations in bracket height can have a ...

introduced in 1991 to save the clinician the time spent in preparing the adhesive for direct bonding and applying it to the bracket.1 The APC brackets, which are packaged in individual capsules for ease of identification and infection control, are applied with finger pressure.2 A uniform factory precoating purportedly ensures an even amount and consistency of composite beneath each bracket. Any...

Appearance does count at any age. Esthetic compromise repels adult patients from accepting traditional metallic look orthodontic treatment. Tooth colored brackets and wires gained popularity for a few decades but gradually declined owing to its own disadvantages. Lingual orthodontic appliances brought paradigm shift, but could not got prevalent because of tedious bracket positioning, insufficie...

It is difficult to visualize the lingual surfaces of the all tooth, in order to assess the exact Facial axis of the clinical crown (FACC point) . So no matter how accurately brackets are positioned on set-up models, it would be meaningless if these positions were lost during intraoral bracket placement. It is no exaggeration to say that incorrect bracket positioning leads to treatment failure. ...

Orthodontists have used a variety of hand-held dental instruments to position the brackets for direct bonding. A number of instruments, including the Boone and Dougherty gauges, have been used for accurate positioning of brackets in direct bonding. Although position adjustments can be made with such an instrument, the bracket can easily slip when the instrument is removed. Indirect bonding may ...

JCO/JULY 2007 P bracket placement is even more important in lingual orthodontics than with labial appliances.1-5 New bracket systems and more flexible wires have eliminated many positioning problems; examples include Kyung’s Mushroom Bracket Positioner,5 the STb system* developed by Takemoto and Scuzzo,6 Wiechmann’s Transfer Optimized Positioning** (TOP), which produces customized archwires wit...