<prompt> All of the following is true about physical properties of dentin exceptDentin has limited ability to distort and regain its shapeInorganic component comprises of plate shaped hydroxyapatite crystals of diameter 35nm and thickness 10 nm90 of the organic collagenous component mainly consists of Type 1 collagenous fiberNon collagenous protein comprises of amelogenin  <response>: Non collagenous proteins of dentin areDecorin and Biglycans ---Prevents premature mineralizationDentin Phosphoprotein---Acidic protein, helps in nucleation and crystal growthDentin Sialoprotein---it is ameloblastin like protein containing 10 sialic acid and helps in crystal growth. 