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 characterizes bone loss pattern in Stage I and II? Vertical Neither Both Horizontal Stages I and II show mostly horizontal bone loss patterns 2 / 20 What smoking status indicates Grade A? Any smoking <10 cigarettes/day ≥10 cigarettes/day Non-smoker Non-smoker status indicates Grade A 3 / 20 When is extent considered “localized”? <30% teeth <20% teeth <40% teeth <10% teeth Localized is defined as <30% of teeth involved 4 / 20 What degree of mobility indicates Stage IV complexity? ≥3 ≥1 ≥2 Any mobility Tooth mobility degree ≥2 is a Stage IV complexity factor 5 / 20 What smoking history indicates Grade B? Any smoking ≥10 cigarettes/day Non-smoker <10 cigarettes/day <10 cigarettes/day modifies to Grade B 6 / 20 What HbA1c level in diabetic patients indicates Grade B? ≥7.0% No diabetes <6.5% <7.0% HbA1c <7.0% in patients with diabetes indicates Grade B -Diabetes has an impact on grading depending on the level of HbA1c. 7 / 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 8 / 20 What is the radiographic bone loss (RBL) percentage in Stage I? 33-50% <15% 15-33% >50% 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] 9 / 20 What % bone loss/age ratio indicates Grade B? >1.0 >2.0 <0.25 0.25-1.0 Grade B shows moderate progression with bone loss/age ratio of 0.25-1.0 10 / 20 How many opposing pairs of teeth indicate potential masticatory dysfunction in Stage IV? <8 pairs <10 pairs <9 pairs <12 pairs <10 opposing pairs (20 teeth) indicates masticatory dysfunction 11 / 20 Stage II RBL is described as what percentage? >50% 33-50% <15% 15-33% Stage II shows coronal third RBL 15-33% 12 / 20 Grade C direct progression is indicated by what bone loss over 5 years? ≥2mm ≥3mm <2mm >4mm Grade C shows rapid rate with ≥2mm loss over 5 years 13 / 20 Which stage first presents with furcation involvement? Stage I Stage IV Stage III Stage II Furcation Class II or III first appears in Stage III complexity 14 / 20 Grade C smoking modifier is defined as? ≥10 cigarettes/day Any smoking <10 cigarettes/day Non-smoker ≥10 cigarettes/day modifies to Grade C 15 / 20 What bone loss/age % indicates Grade B? 0.25 to 1.0 <0.25 >1.0 2 Grade B shows moderate rate with bone loss/age ratio 0.25 to 1.0 16 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥3 teeth ≥4 teeth ≥5 teeth ≥6 teeth Stage IV shows ≥5 teeth lost due to periodontitis 17 / 20 What is the indirect evidence of Grade A progression (% bone loss/age)? >1.0 None 0.25 to 1.0 <0.25 Grade A indirect evidence is <0.25 bone loss/age ratio 18 / 20 Which grade should clinicians initially assume? Grade B Grade A No grade Grade C Clinicians should initially assume Grade B Key Points: 19 / 20 What characterizes Grade C case phenotype? Heavy biofilm with a low level of destruction Minimal biofilm deposits with minimal destruction Periodontal destruction matches biofilm deposits Destruction exceeds expectations, given biofilm deposits The level of destruction exceeds expectations given the biofilm deposits. 20 / 20 What’s the minimum criteria needed to shift to Stage IV? Vertical bone loss RBL below middle third of the root ≥5 teeth lost Furcation involvement ≥5 teeth lost automatically moves to Stage IV 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
