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Increased
Gingival
Coverage
Extended gingival coverage allows a larger amount of area covered by the aligners, particularly for teeth with short crown height. The margins of the aligners are also less visible to others since it is placed deeper from the zenith of each tooth, making the aligners more esthetic, particularly for patients with varying lip line positions.
Studies have shown that by having the margin of the aligner covering the gingiva, it increases retention compared to clear aligners with margins following the scallop of the teeth. Furthermore, studies have also shown that coverage of the gingival edge increases orthodontic forces in an acceptable amount.
The increased gingival coverage allows room for pressed buttons directly on every aligner, saving doctor’s chair time without the need to bond and avoids the risk of debonding. However, we also understand that for some situations, non-gingival coverage aligners are beneficial. Therefore, TrioClear allows doctors to choose scalloped margins on request.
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