牙周病学电子教案.pptVIP

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: Good Prognosis: Indicates that there is adequate periodontal support and it is possible to control etiologic factors to assure that the teeth will be relatively easily maintained. 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