Data sources The Cochrane Oral Health Group's Trials Register, The Cochrane Central Register of Controlled Trials (CENTRAL), Medline and Embase were searched. Several journals were searched by hand ...

(MENAFN- iCrowdNewsWire) Retainers are orthodontic devices designed to be worn after oral surgery or use of teeth-straightening devices. They help to hold teeth in place as the bone and soft tissue ...