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 In Stage II periodontitis, what is the CAL range? <1mm 3-4mm 1-2mm ≥5mm Stage II is characterized by 3-4mm interdental CAL 2 / 20 What smoking history indicates Grade B? ≥10 cigarettes/day Non-smoker <10 cigarettes/day Any smoking <10 cigarettes/day modifies to Grade B 3 / 20 What defines “bite collapse” in Stage IV? <10 opposing pairs <20 teeth All of above <15 teeth <20 remaining teeth (10 opposing pairs) indicates bite collapse 4 / 20 Grade C direct progression is indicated by what bone loss over 5 years? ≥2mm <2mm >4mm ≥3mm Grade C shows rapid rate with ≥2mm loss over 5 years 5 / 20 What is considered bite collapse in Stage IV? <20 teeth <18 teeth <15 teeth <22 teeth <20 remaining teeth (10 opposing pairs) indicates bite collapse in Stage IV 6 / 20 If a patient smokes 12 cigarettes/day but has HbA1c of 6.5%, what’s the worst grade modifier? Grade C Grade A Grade B Can't determine Smoking ≥10 cigarettes/day indicates Grade C, regardless of HbA1c 7 / 20 When do vertical bone defects ≥3mm first appear as a complexity factor? Stage II Stage III Stage IV Stage I Vertical bone loss ≥3mm first appears in Stage III 8 / 20 Which type of bone loss is predominantly seen in Stage I and II? Vertical Both equally Horizontal Neither Stages I and II show mostly horizontal bone loss 9 / 20 Which combination indicates Stage III complexity? Probing depth ≥6mm + mobility 1 Probing depth ≤4mm + vertical bone loss Probing depth ≤5mm + horizontal bone loss Probing depth ≥6mm + Class II furcation Stage III includes probing depths ≥6mm and Class II furcations 10 / 20 What characterizes bone loss pattern in Stage I and II? Both Horizontal Vertical Neither Stages I and II show mostly horizontal bone loss patterns 11 / 20 Which stage first considers tooth loss as a staging criterion? Stage III Stage I Stage II Stage IV Tooth loss first appears as a criterion in Stage III 12 / 20 Which HbA1c value modifies to Grade C? No diabetes <7.0% ≥7.0% <6.5% HbA1c ≥7.0% in patients with diabetes modifies to Grade C 13 / 20 What smoking status indicates Grade A? ≥10 cigarettes/day <10 cigarettes/day Non-smoker Any smoking Non-smoker status indicates Grade A 14 / 20 When CAL is not available, what should be used for staging? Bleeding on probing RBL Mobility Probing depth Classification states RBL should be used if CAL unavailable 15 / 20 What case phenotype indicates Grade B? Heavy biofilm, low destruction Destruction commensurate with biofilm Minimal biofilm Destruction exceeds biofilm expectations Destruction commensurate with biofilm deposits 16 / 20 Stage II maximum probing depth is? ≤4 mm ≤6 mm ≤5 mm ≤7 mm Stage II complexity shows maximum probing depth ≤5 mm 17 / 20 In absence of CAL measurements, what primary criteria is used? Mobility Bone loss Probing depth Bleeding Radiographic bone loss is used when CAL unavailable 18 / 20 Stage IV tooth loss is defined as? ≥6 teeth ≥4 teeth ≥5 teeth ≥3 teeth Stage IV shows ≥5 teeth lost due to periodontitis 19 / 20 What characterizes Grade A case phenotype? Matches biofilm deposits Heavy biofilm, low destruction Exceeds biofilm expectations Minimal biofilm Heavy biofilm deposits with low levels of destruction 20 / 20 What bone loss/age % indicates Grade B? 2 <0.25 0.25 to 1.0 >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
