2.germs cell in loosing teeth patient

3. associatian between implant and periodontal disease

4.periimplantisits in highly educated person

5.gingival hyperplasia

2.mobility and furcation involvement

3.classificatin of periodontal disease

4.treatment of periodontal disease

5.periodomtal surgery

6.calculs and plaque

7.implant and periimplantisits

8.traumatic occlusion

9.prevention of periodontal disease

10.plaque control

11.antiboitic in periodontal disease