This tag implies that the bands and artists are Serbian or originated in Serbia. Music represented by this tag is often highly commercial. Other, possibly better, Serbian tags are, for example Novi Val or nova srpska scena.
Relapse means that the teeth can take up to one year or more to stabilize after treatment. If you had gaps between your teeth before treatment, the retention period will be longer. Usually, retainers are worn for as long a time as you have had your braces.
For the average patent, you will wear your removable retainer full-time for the first 3-6 months, and thereafter only while sleeping. If your orthodontist recommends a period of time longer or shorter than this, he or she is protecting your smile.