Effect of Socket Preservation Using Crab Shell-Based Hydroxyapatite in Wistar Rats

Tooth extraction can cause 1.5-2 mm (vertical) and 40-50% (horizontal) alveolar bone resorption to occur for 6 months after extraction and will continue if it is not treated. Alveolar bone resorption will affect the retention, stability, and comfort in the use of dentures because adequate alveolar bone volume and structure of alveolar ridge are very important to obtain optimal function and prosthetic reconstruction. Currently, there are techniques and materials that can be used to minimize bone resorption. Preservation of alveolar ridges with crab shell-based hydroxyapatite can minimize bone resorption because it has good biocompatibility, osteoconduction, and osteoinduction. The aim of this study is to prove the effectiveness of hydroxyapatite from crab shells in increasing the area of bone trabeculae, transforming growth factor-beta 1(TGF-β1), and alkaline phosphatase (ALP). This laboratory research is an experimental laboratory work with a post-test group design. Crab shell-based hydroxyapatite gel (Portunus pelagicus) was given after the post-tooth socket extraction of the left lower central incisor of Wistar rats, observing the area of trabeculae, TGF-β1, and ALP on the 14th d