牙周病学电子教案.ppt

牙周病学Periodontology 山东大学口腔医学院 葛少华 Chapter11 Periodontal Prognosis Periodontal Treatment Planning The contents that should be mastered: 1 factors to consider when assigning prognosis of periodontitis 2 Objectives of periodontal treatment and treatment procedure Periodontal Prognosis Prognosis is a prediction of the probable course and outcome of a disease. It is determined following initial examination, and following active therapy phase. Periodontal Prognosis Importance: Clinician: To determine which treatment modalities will be most effective. To develop restorative recommendation and treatment plans. Periodontal Prognosis Importance: Patient: to determine whether treatment seems worthwhile. （EBM) Factors to consider when assigning overall Prognosis 1Type of periodontitis: chronic or aggressive, with or without systemic factors. 2 Degree of periodontium destruction (Disease Severity) 3 The elimination of local factors: calculus, plaque, occlusal trauma 4 Tooth mobility degree 5 The number of teeth remaining in oral cavity 6 patient cooperation:self-performing plaque control, reevaluation at time 7 environmental and behavioral factors:smoking 8 systemic factors: diabetes 9 age: Factors to consider when assigning individual tooth prognosis: 1 PD and AL 2 the alveolar bone resorption degree and types: 3 tooth mobility degree 4 Anatomic factors: short, tapered roots; cervical enamel projections, root concavities, developmental grooves Assigning prognosis: Assigning prognosis The following criteria constitute a good prognosis: - Probing depth 0-3mm. - Less than 10% bone loss. - No furcation. - No pathologic mobility. ? Assigning prognosis Fair prognosis: Indicates there is a good chance that the teeth can be restored to health and retained, assuming proper maintenance. Assigning prognosis The following factors are suggestive of fair prognosis:(one or more) - Pocket depth