Hossain, M. M.; Aziz, M. S.; Asaduzzaman, M. Changes in Residual Alveolar Ridge Following Tooth Extraction & The Necessity of Placing Bone Graft Material in the Extracted Socket to Prevent Bone Resorption - A Review Article. Bangla J. Dent. Res. & Educ. 2013, 1, 30-32.