After tooth extraction, the alveolar bone, which supports the teeth, undergoes a natural resorption process. This bone loss can be significant, especially in the first few months post-extraction, leading to a reduction in both bone height and width (Araújo et al ,. 2005) Generally, the goal of alveolar ridge preservation is to maximize bone formation while maintaining good soft tissue architecture, As socket preservation has proved high clinical efficacy in maintaining alveolar ridge high and width, there are many materials that have been proposed such as: autogenous bone grafts, allografts, xenografts, alloplasts, dentin graft and PRF. Unfortunately, the previously mentioned grafting material has several limitations have more such as high cost, biocompatibility, osteoinductive limitations and the need for a second surgical site. These limitations encouraged the researchers to test alternative materials and techniques to provide comparable or superior outcomes with fewer drawbacks. One of the newly introduced materials is eggshell derived nanohydroxyapatite (EnHA). Eggshell-derived nanohydroxyapatite (EnHa) represents a novel and potentially superior alternative due to its biocompatible, osteoconductive, and osteoinductive bone substitute. Preliminary studies suggest that this material. The synergistic effect of PRF when combined with various graft materials has also been extensively studied. when PR combined with bone grafting materials, it results in enhanced osteoconductive properties of graft materials and promotes efficient bone regeneration. (Yilmaz et al., 2017). However, up till now, there are no sufficient studies on the clinical efficacy of EnHA as a cheaper and readily available alternative which has superior clinical properties especially when combined with PRF compared to standard xenografts.
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Change in bone density
Timeframe: after 4 months postoperatively.