The aim of this study is to evaluate the improvement in masticatory efficiency and retention of tooth-supported overdenture using customized copings over abutment teeth with a silicone-based matrix attachment system present an alternative to prefabricated precision attachments. Saving mutilated teeth and using them for overdenture has been a good alternative to the conventional dentur... https://www.houseandholders.shop/product-category/urn/