Some patients may have to wear a permanent retainer . कुछ मरीजों को स्थायी रूप से “ सहायक उपकरण ” की सहायता लेनी पड़ती है .
2.
Most patients can count on wearing full braces between 18 and 30 months , followed by the wearing of a retainer for at least a few months to up to two years to set and align tissues surrounding straightened teeth . अधिकतर मरीजों को 18 से 30 माह तक लगाना होता है.इसके बाद भी सहायक उपकरण पहने रखना होता है जो कुछ महीनों से लेकर 2 वर्ष तक का समय ले सकता है .
परिभाषा
a dental appliance that holds teeth (or a prosthesis) in position after orthodontic treatment
a person working in the service of another (especially in the household) पर्याय: servant,
a fee charged in advance to retain the services of someone पर्याय: consideration,