Study on the metergasis of physiology of mastication after loss of tooth;

Objective To analyze peri-implant alveolar bone loss with radiography.

Objective To study the risk factors of alveolar bone loss( ABL)of primary teeth in Chinese children.

To investigate the relationship between tooth loss and the occurrence of esophageal carcinoma,cardia carcinoma and stomach cancer.

Effect of missing molars on spatial learning and memory in mice

AIM Missing molars mice model had been set up to observe whether molarsmissing can affect mice\'s spatial learning and memory.

Progress in study on loss mechanism of cloudy appearance in orange juice;

Loss and Protection of Biodiversity

This article,on basis of analysis of the loss of the world and China's marsh area,gives an analysis to the marsh area loss reasons,and supplies a scientific reliance for the marsh's protection and management.