enhance preorthodontic condition. The aim of this study is to determine the effects of socket preservation\r\non the immediate tooth movement, alveolar ridge height preservation and orthodontic root resorption.\r\nMaterials and Methods: In a split-mouth technique, twelve sites in three dogs were investigated\r\nas an experimental study. Crushed demineralized freeze-dried bone allograft (DFDBA) (CenoBone�®)\r\nwas used as the graft material. The defects were made by the extraction of 3rd premolar. On one\r\nside of each jaw, the defects were preserved by DFDBA and defects of the other side left opened\r\nas the control group. Simultaneously the teeth adjacent to the defects were pulled together by\r\na NiTi coil spring. After eight weeks, the amount of (OTM), alveolar height, and root resorption\r\nwere measured. Analysis of variance was used for purpose of comparison.\r\nResults: There was a slight increase in OTM at grafted sites as they were compared to the control\r\nsites (P<0.05). Also a significant bone resorption in control site and successful socket preservation\r\nin experimental site were observed. Reduction of root resorption at the augmented site was\r\nsignificant compared to the normal healing site (P<0.05).\r\nConclusion: Using socket preservation, tooth movement can be immediately started without\r\nwaiting for the healing of the recipient site. This can provide some advantages like enhanced rate\r\nof OTM, its approved effects on ridge preservation that reduces the chance of dehiscence and the\r\nreduction of root resorption.
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