The resorption of alveolar bone rapidly begins after tooth extraction during the first year and continues for years. Different studies revealed that alveolar bone loss during 12 months after extraction is 11-22% of alveolar bone height and 29-63% of width while two-thirds of bone is lost during first 3 months after tooth extraction [1, 2]. Autogenous bone graft as bone graft material is still considered as a gold standard for bone regeneration. Limitations, such as prolonged time of operation, unpredictable resorption, donor site morbidity and limited bone graft availability from bone graft harvesting techniques  motivates the search for more suitable grafting material. Most of bone graft materials possess osteoconductive properties and serves as a scaffold for new bone Regeneration. The aim of this study is to investigate post-extraction socket preservation techniques and to suggest the most ideal preservation technique assessing bone volume, regenerated bone/bone graft/connective tissue ratio.
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