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 When is extent considered “localized”? <30% teeth <10% teeth <20% teeth <40% teeth Localized is defined as <30% of teeth involved 2 / 20 In Stage I periodontitis, what is the interdental CAL measurement? 3-4 mm 1-2 mm >6 mm ≥5 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 No grade Grade A Grade C Clinicians should initially assume Grade B Key Points: 4 / 20 Stage IV tooth loss is defined as? ≥6 teeth ≥3 teeth ≥5 teeth ≥4 teeth Stage IV shows ≥5 teeth lost due to periodontitis 5 / 20 Grade C smoking modifier is defined as? Any smoking <10 cigarettes/day Non-smoker ≥10 cigarettes/day ≥10 cigarettes/day modifies to Grade C 6 / 20 When do vertical bone defects ≥3mm first appear as a complexity factor? Stage II Stage I Stage IV Stage III Vertical bone loss ≥3mm first appears in Stage III 7 / 20 What’s the minimum criteria needed to shift to Stage IV? ≥5 teeth lost Furcation involvement Vertical bone loss RBL below middle third of the root ≥5 teeth lost automatically moves to Stage IV 8 / 20 Patient with HbA1c 7.2% who never smoked would be modified to what grade? Grade C Grade A Can't determine Grade B HbA1c ≥7.0% modifies to Grade C, even without smoking 9 / 20 Which Stage first presents with vertical bone loss ≥3mm? Stage IV Stage I Stage II Stage III Vertical bone loss ≥3mm first appears in Stage III complexity factors 10 / 20 What degree of mobility indicates Stage IV complexity? ≥1 ≥2 ≥3 Any mobility Tooth mobility degree ≥2 is a Stage IV complexity factor 11 / 20 If a patient has lost 6 teeth due to periodontitis but has Stage II CAL/RBL, what stage would they be? Stage II Stage IV Stage I Stage III Tooth loss can modify stage definition – ≥5 teeth lost moves to Stage IV regardless of other factors 12 / 20 Which is NOT a complexity factor in Stage IV? Secondary occlusal trauma Horizontal bone loss Masticatory dysfunction Bite collapse Horizontal bone loss is not a specific Stage IV complexity factor 13 / 20 What % bone loss/age ratio indicates Grade B? <0.25 >1.0 >2.0 0.25-1.0 Grade B shows moderate progression with bone loss/age ratio of 0.25-1.0 14 / 20 What smoking history indicates Grade B? Non-smoker <10 cigarettes/day ≥10 cigarettes/day Any smoking <10 cigarettes/day modifies to Grade B 15 / 20 What is the indirect evidence of Grade A progression (% bone loss/age)? >1.0 0.25 to 1.0 <0.25 None Grade A indirect evidence is <0.25 bone loss/age ratio 16 / 20 What characterizes bone loss pattern in Stage I and II? Vertical Neither Horizontal Both Stages I and II show mostly horizontal bone loss patterns 17 / 20 Stage II RBL is described as what percentage? 15-33% 33-50% >50% <15% Stage II shows coronal third RBL 15-33% 18 / 20 When CAL is not available, what should be used for staging? Probing depth Bleeding on probing RBL Mobility Classification states RBL should be used if CAL unavailable 19 / 20 How is “localized” periodontitis defined? <20% teeth <10% teeth <40% teeth <30% teeth Classification defines localized as <30% of teeth involved 20 / 20 What bone loss/age % indicates Grade B? <0.25 >1.0 2 0.25 to 1.0 Grade B shows moderate rate with bone loss/age ratio 0.25 to 1.0 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
