From Volume 11, Issue 4, October 2018 | Pages 126-132
The 2D lingual appliance is a popular choice for achieving cost-effective and timely results in carefully selected cases and with the minimum aesthetic impact. This article will describe how to use the appliance and highlight particular areas where introducing it into your clinical practice may be particularly beneficial.
The 2D lingual appliance1 can be a good treatment option for patients seeking discreet orthodontic treatment. The system employs the use of low profile, self-ligating brackets which can be bonded directly. The lack of a rectangular slot means that only first and second order movements are possible, which limits its application for comprehensive treatment. The low friction mechanics, the simplicity of the brackets and their ease of use certainly offer a cost-effective adjunctive treatment. The following article highlights ways in which the 2D appliance can be a useful addition to the armamentarium of the clinician.
Most 2D brackets consist of a simple self-ligating bracket with two distortable clips on the lingual surface to contain the wire. The two clips are adjusted to allow vertical insertion of the archwires and then are crimped shut with a Weingarts plier to ensure engagement of the wire.
The clips are ‘self-ligating’ in that no modules are required, with tooth alignment occurring with the increase in archwire dimension, up to a maximum of 0.022” diameter.2
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