<prompt> Seiberts class II defect is:Faciolingual loss of tissues with normal ridge heightNormal ridge width with loss of ridge heightLoss of height and widthNone of the above  <response>: Seiberts ClassificationClass 0 defects - No defect.Class I defects - Faciolingual loss of tissue width with normal ridge height.Class II defects - Loss of ridge height with normal ridge width.Class III defects - A combination of loss in both dimensions. 