Abstract
In case of banded Rapid Palatal Expansion (RPE) appliance, it is very easy to assess the amount of expansion by viewing the cuspal relation of posterior teeth, as this type of design doesn’t cover the tooth surface completely. But the design of bonded RPE appliance is such that it covers the complete posterior teeth surfaces. Hence, it becomes very difficult to assess the amount of expansion achieved clinically. To overcome this, an identification marking line is prepared on the palatal cusp region of maxillary posteriors, which when coincides with the buccal cusps of mandibular posterior teeth, suggests the optimum amount of expansion achieved. Keywords: Rapid palatal expansion, Modified design, Identification marking line.
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