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 % bone loss/age ratio indicates Grade B? <0.25 >1.0 0.25-1.0 >2.0 Grade B shows moderate progression with bone loss/age ratio of 0.25-1.0 2 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥6 teeth ≥4 teeth ≥5 teeth ≥3 teeth Stage IV shows ≥5 teeth lost due to periodontitis 3 / 20 What smoking history indicates Grade B? <10 cigarettes/day ≥10 cigarettes/day Non-smoker Any smoking <10 cigarettes/day modifies to Grade B 4 / 20 What characterizes Grade C case phenotype? Destruction exceeds expectations, given biofilm deposits Periodontal destruction matches biofilm deposits Heavy biofilm with a low level of destruction Minimal biofilm deposits with minimal destruction The level of destruction exceeds expectations given the biofilm deposits. 5 / 20 At what location is RBL measured? Most affected site Average of all sites Least affected site Random site RBL is measured at site of greatest loss 6 / 20 For extent description, what are the three possible patterns? None of above Early/Late/Advanced Localized/Generalized/Molar-Incisor Mild/Mod/Severe Extent described as localized, generalized, or molar/incisor pattern 7 / 20 In Stage II, what is the maximum probing depth? ≤4 mm ≤6 mm ≤7 mm ≤5 mm Stage II complexity shows maximum probing depth ≤5 mm 8 / 20 What degree of mobility indicates Stage IV complexity? ≥1 Any mobility ≥3 ≥2 Tooth mobility degree ≥2 is a Stage IV complexity factor 9 / 20 Which is NOT a complexity factor in Stage IV? Secondary occlusal trauma Masticatory dysfunction Horizontal bone loss Bite collapse Horizontal bone loss is not a specific Stage IV complexity factor 10 / 20 If a patient smokes 12 cigarettes/day but has HbA1c of 6.5%, what’s the worst grade modifier? Grade C Can't determine Grade B Grade A Smoking ≥10 cigarettes/day indicates Grade C, regardless of HbA1c 11 / 20 In absence of CAL measurements, what primary criteria is used? Bone loss Bleeding Mobility Probing depth Radiographic bone loss is used when CAL unavailable 12 / 20 What characterizes bone loss pattern in Stage I and II? Both Neither Horizontal Vertical Stages I and II show mostly horizontal bone loss patterns 13 / 20 What bone loss/age % indicates Grade B? 2 >1.0 <0.25 0.25 to 1.0 Grade B shows moderate rate with bone loss/age ratio 0.25 to 1.0 14 / 20 What is the CAL measurement range for Stage I periodontitis? 3-4mm <1mm ≥5mm 1-2mm Stage I shows interdental CAL of 1-2mm as the earliest detectable stage CAL progression through stages: 15 / 20 Stage IV tooth loss is defined as? ≥5 teeth ≥3 teeth ≥4 teeth ≥6 teeth Stage IV shows ≥5 teeth lost due to periodontitis 16 / 20 How many opposing pairs of teeth indicate potential masticatory dysfunction in Stage IV? <10 pairs <9 pairs <8 pairs <12 pairs <10 opposing pairs (20 teeth) indicates masticatory dysfunction 17 / 20 Which type of bone loss is predominantly seen in Stage I and II? Neither Both equally Vertical Horizontal Stages I and II show mostly horizontal bone loss 18 / 20 In assessing tooth loss for staging, what type of tooth loss is counted? All missing teeth Only anterior teeth Only periodontitis-related loss Only posterior teeth Only teeth lost due to periodontitis are considered in staging 19 / 20 What is the radiographic bone loss (RBL) percentage in Stage I? 33-50% >50% 15-33% <15% Stage I shows coronal third RBL <15% RBL is assessed at the site of greatest loss, due to periodontal disease. The following formulas are used to calculate RBL: BL: % of bone loss=(CEJ-Alveolar Crest)÷(CEJ-Apex) x 100 RBL = % of bone loss/Age = BL÷ Patient’s Age [CE Course: The A, B, Cs, and I, II, and IIIs of Periodontitis Staging and Grading By: Fran Soderling, RDH, MA and Jila Torabi, RDH, MPH] 20 / 20 Grade C smoking modifier is defined as? Non-smoker Any smoking <10 cigarettes/day ≥10 cigarettes/day ≥10 cigarettes/day modifies to Grade C 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
