Humans ; Mouth ; Photography

Animals ; Dental Cements ; chemistry ; Glass ; chemistry ; Humans ; Materials Testing ; Post and Core Technique ; instrumentation ; Quartz ; chemistry ; Root Canal Therapy ; Tooth Fractures ; prevention & control

Color ; Dental Materials ; Dental Restoration, Permanent

Prosthesis Coloring

Prosthesis Coloring ; Tooth

Academic Dissertations as Topic

Esophageal Achalasia ; surgery ; Esophagus ; pathology ; surgery ; Humans ; Surgical Procedures, Operative ; methods ; trends

Objective To explore the significances of the endoscopic diagnosis for chronic atrophic and histological assessment gastritis (CAG). Method Five hundred patients with CAG were determined by gastroscopy and the samples of gastric mucosa were examined by the pathology. Results Among 500 cases of CAG by gastroscopy, 429 cases were similar with the pathologic results and the coincidence rate of diagnosis with endoscopy and pathology was 85.8%(429/500), 370 cases had a change of atrophic gastritis in cirumjacent mucosa. Conclusion The coincidence rate of diagnosis under endoscopy and pathology is quite good in CAG.

Colorectal cancer is one of the most commonly seen malignant neoplasms in digestive tract.Most patients with colorectal cancer died of metastasis.The details of the metastasis-associated mechanisms are not elucidated completely.Recently,many genes that are involved in this course were detected.In this paper,the latest advances in those metastasis-associated genes and coding genes including C-myc,Ras,Her-2 ,p53,deleted in colorectal cancer gene (DDC),phosphatase and tensin homologue (PTEN),nm23 and other code genes,such as CD44,matrix metalloproteinases (MMPs) and mucins will be reviewed.