Space Resolution Prior to Ortho

A 9-year-old girl has 2 space issues (missing #26 (*) and mesial shift of #30 (arrow), Fig.1).  After extraction of S and T (Fig.2), a space regainer is fabricated.  In 3 months, the tooth #28 is erupting (Fig.3); the regainer is being activated.  Next visit, check anterior overjet.  When the regainer is activated, the tooth #27 feels being pressured.  The lower anterior teeth may be pushed anteriorly.

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Xin Wei, DDS, PhD, MS 1st edition 09/25/2016, last revision 09/25/2016