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 Grade C direct progression is indicated by what bone loss over 5 years? >4mm <2mm ≥2mm ≥3mm Grade C shows rapid rate with ≥2mm loss over 5 years 2 / 20 What is the radiographic bone loss (RBL) percentage in Stage I? 15-33% >50% 33-50% <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] 3 / 20 In Stage I periodontitis, what is the interdental CAL measurement? 3-4 mm ≥5 mm 1-2 mm >6 mm Stage I shows earliest CAL with interdental CAL of 1-2mm as specified in classification 4 / 20 How many teeth lost due to periodontitis indicates Stage III? ≤4 teeth ≤3 teeth ≤5 teeth ≤2 teeth Stage III is characterized by ≤4 teeth lost due to periodontitis 5 / 20 If a patient has lost 6 teeth due to periodontitis but has Stage II CAL/RBL, what stage would they be? Stage I Stage III Stage IV Stage II Tooth loss can modify stage definition – ≥5 teeth lost moves to Stage IV regardless of other factors 6 / 20 In Stage II, what is the maximum probing depth? ≤6 mm ≤4 mm ≤7 mm ≤5 mm Stage II complexity shows maximum probing depth ≤5 mm 7 / 20 What is direct evidence of Grade A progression? ≥2mm over 5 years No loss over 5 years <2mm over 5 years 1mm over 5 years Grade A shows slow rate with no loss over 5 years 8 / 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 9 / 20 Which type of bone loss is predominantly seen in Stage I and II? Neither Horizontal Vertical Both equally Stages I and II show mostly horizontal bone loss 10 / 20 What HbA1c level in diabetic patients indicates Grade C? >6.0% >6.5% >8.0% >7.0% HbA1c ≥7.0% in patients with diabetes indicates Grade C 11 / 20 What is maximum probing depth in Stage I? ≤6 mm ≤4 mm ≤3 mm ≤5 mm Stage I complexity shows maximum probing depth ≤4 mm 12 / 20 Stage II maximum probing depth is? ≤4 mm ≤5 mm ≤7 mm ≤6 mm Stage II complexity shows maximum probing depth ≤5 mm 13 / 20 If a patient smokes 12 cigarettes/day but has HbA1c of 6.5%, what’s the worst grade modifier? Grade A Grade C Can't determine Grade B Smoking ≥10 cigarettes/day indicates Grade C, regardless of HbA1c 14 / 20 Stage IV tooth loss is defined as? ≥5 teeth ≥6 teeth ≥3 teeth ≥4 teeth Stage IV shows ≥5 teeth lost due to periodontitis 15 / 20 How is “localized” periodontitis defined? <40% teeth <30% teeth <10% teeth <20% teeth Classification defines localized as <30% of teeth involved 16 / 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 17 / 20 What is the indirect evidence of Grade A progression (% bone loss/age)? <0.25 0.25 to 1.0 >1.0 None 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 When is extent considered “localized”? <10% teeth <20% teeth <30% teeth <40% teeth Localized is defined as <30% of teeth involved 20 / 20 For extent description, what are the three possible patterns? Localized/Generalized/Molar-Incisor Mild/Mod/Severe None of above Early/Late/Advanced Extent described as localized, generalized, or molar/incisor pattern 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
