<prompt> Extrusive movements ideally would produce no areas of compression within PDL, but will produce:Only contusionOnly tensionOnly retractionOnly extraction  <response>: Extrusion is defined as the axial movement of the tooth along the long axis towards the coronal part. Features of Extrusion:Force required: 3560 gLoading pattern: No areas of compression in PDL.Only stretched areastension. 