| 1. | Study of experimental animal model of periodontitis 实验性牙周炎动物模型研究 |
| 2. | Study on the experimental animal model of periodontitis 实验性牙周炎动物模型的研究进展 |
| 3. | Treatment of periodontitis on syndrome differentiation in 78 cases 中医辨证分型治疗牙周炎78例 |
| 4. | Microbial study of experimental animal model of periodontitis 实验性牙周炎动物模型的微生物研究 |
| 5. | About 50 per cent of americans oer 30 years of age hae periodontitis 约半数30岁以上的美国人患有牙周炎。 |
| 6. | Periodontitis ( a gum disease ) was induced on one side of the animals ' mouth 同时在大鼠的一侧口腔中诱发牙周炎。 |
| 7. | Study on endotoxin levels of acute and chronic periapical periodontitis 慢性根尖周炎患牙根管内内毒素水平的分析测定 |
| 8. | Periodontitis is one of two common types of gum inflammation , the other being gingiitis 牙周炎是两种常见口腔感染之一,另一种为牙龈炎。 |