1. List the phases  of  Periodontal treatment plan.
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2. What are the grades to describe the prognosis of periodontal disease?
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3- According to the classification of periodontal diseases and conditions by the American Academy of Periodontology (AAP) in 1999,write the six main diseases and conditions.
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4- How do you calculate the clinical attachment loss?
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 5- What are the grades of furcation involvement?
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6- Describe the gingiva in health and disease
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