Centuries: 3rd century - 4th century - 5th century
Decades: 340s - 350s - 360s - 370s - 380s - 390s - 400s - 410s - 420s - 430s - 440s
Years: 390 391 392 393 394 395 396 397 398 399 400
... and hypertrophic scarring. It is usually effective, but only used in extreme cases due to the risk of long-term side effects. Dermabrasion Dermabrasion[?] ...