Other recent studies have shown positive effects on improving alveolar bone remodeling. In a paper published in 2011, scientists with the Department of Oral Medicine, School of Medicine in Hangzhou investigated Drynaria to see if it could reduce alveolar bone loss in rats by stimulating the proliferation and differentiation of osteoblasts. They observed a remarkable decrease in the number of osteoclasts (bone dissolving cells) in the Drynaria-treated group as compared to the control animals.