Periodontal ClassificationDentistry MCQs 0% Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 1234567891011121314151617181920 Periodontal Classification Reference: Staging-and-Grading-Periodontitis by the AAPD 1 / 20 What case phenotype indicates Grade B? Destruction commensurate with biofilm Heavy biofilm, low destruction Minimal biofilm Destruction exceeds biofilm expectations Destruction commensurate with biofilm deposits 2 / 20 In Stage I periodontitis, what is the interdental CAL measurement? ≥5 mm >6 mm 3-4 mm 1-2 mm Stage I shows earliest CAL with interdental CAL of 1-2mm as specified in classification 3 / 20 Which grade should clinicians initially assume? Grade B Grade C No grade Grade A Clinicians should initially assume Grade B Key Points: 4 / 20 What smoking status indicates Grade A? <10 cigarettes/day Non-smoker ≥10 cigarettes/day Any smoking Non-smoker status indicates Grade A 5 / 20 Patient with HbA1c 7.2% who never smoked would be modified to what grade? Grade A Grade C Grade B Can't determine HbA1c ≥7.0% modifies to Grade C, even without smoking 6 / 20 In assessing tooth loss for staging, what type of tooth loss is counted? Only periodontitis-related loss All missing teeth Only anterior teeth Only posterior teeth Only teeth lost due to periodontitis are considered in staging 7 / 20 In Stage I and II, how many teeth are lost due to periodontitis? >4 teeth 1-2 teeth 3-4 teeth No tooth loss Stages I and II show no tooth loss due to periodontitis 8 / 20 Stage II maximum probing depth is? ≤5 mm ≤4 mm ≤7 mm ≤6 mm Stage II complexity shows maximum probing depth ≤5 mm 9 / 20 What is considered bite collapse in Stage IV? <18 teeth <15 teeth <22 teeth <20 teeth <20 remaining teeth (10 opposing pairs) indicates bite collapse in Stage IV 10 / 20 Patient has probing depths ≤4mm, horizontal bone loss <15%, non-smoker, normal glucose. What stage and grade? Stage I, Grade A Stage II, Grade B Stage II, Grade A Stage I, Grade B PD and bone loss indicate Stage I, risk factors indicate Grade A 11 / 20 What degree of mobility indicates Stage IV complexity? ≥1 ≥3 Any mobility ≥2 Tooth mobility degree ≥2 is a Stage IV complexity factor 12 / 20 What is maximum probing depth in Stage I? ≤3 mm ≤6 mm ≤5 mm ≤4 mm Stage I complexity shows maximum probing depth ≤4 mm 13 / 20 What defines “bite collapse” in Stage IV? <10 opposing pairs <20 teeth <15 teeth All of above <20 remaining teeth (10 opposing pairs) indicates bite collapse 14 / 20 When is extent considered “localized”? <40% teeth <20% teeth <30% teeth <10% teeth Localized is defined as <30% of teeth involved 15 / 20 What smoking history indicates Grade B? Non-smoker Any smoking <10 cigarettes/day ≥10 cigarettes/day <10 cigarettes/day modifies to Grade B 16 / 20 Which combination indicates Stage III complexity? Probing depth ≤5mm + horizontal bone loss Probing depth ≤4mm + vertical bone loss Probing depth ≥6mm + mobility 1 Probing depth ≥6mm + Class II furcation Stage III includes probing depths ≥6mm and Class II furcations 17 / 20 Stage III and IV share which CAL measurement? 3-4mm ≥5mm <1mm 1-2mm Both Stage III and IV show CAL ≥5mm 18 / 20 In absence of CAL measurements, what primary criteria is used? Bone loss Probing depth Bleeding Mobility Radiographic bone loss is used when CAL unavailable 19 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥6 teeth ≥5 teeth ≥4 teeth ≥3 teeth Stage IV shows ≥5 teeth lost due to periodontitis 20 / 20 What HbA1c level in diabetic patients indicates Grade B? <6.5% <7.0% ≥7.0% No diabetes HbA1c <7.0% in patients with diabetes indicates Grade B -Diabetes has an impact on grading depending on the level of HbA1c. Your score is 0% Restart quiz AAPD Staging and Grading Periodontitis AAPD Three Steps to Staging and Grading a Patient CDHA The A, B, Cs, and I, II, and IIIs of Periodontitis Staging