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 At what location is RBL measured? Most affected site Least affected site Average of all sites Random site RBL is measured at site of greatest loss 2 / 20 Grade C direct progression is indicated by what bone loss over 5 years? <2mm ≥2mm ≥3mm >4mm Grade C shows rapid rate with ≥2mm loss over 5 years 3 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥5 teeth ≥6 teeth ≥4 teeth ≥3 teeth Stage IV shows ≥5 teeth lost due to periodontitis 4 / 20 In absence of CAL measurements, what primary criteria is used? Bleeding Mobility Probing depth Bone loss Radiographic bone loss is used when CAL unavailable 5 / 20 If a patient has lost 6 teeth due to periodontitis but has Stage II CAL/RBL, what stage would they be? Stage IV Stage I Stage III Stage II Tooth loss can modify stage definition – ≥5 teeth lost moves to Stage IV regardless of other factors 6 / 20 Stage II maximum probing depth is? ≤5 mm ≤4 mm ≤7 mm ≤6 mm Stage II complexity shows maximum probing depth ≤5 mm 7 / 20 How many teeth lost due to periodontitis indicates Stage III? ≤2 teeth ≤3 teeth ≤5 teeth ≤4 teeth Stage III is characterized by ≤4 teeth lost due to periodontitis 8 / 20 What bone loss/age % indicates Grade B? 0.25 to 1.0 2 <0.25 >1.0 Grade B shows moderate rate with bone loss/age ratio 0.25 to 1.0 9 / 20 In Stage I and II, how many teeth are lost due to periodontitis? >4 teeth No tooth loss 1-2 teeth 3-4 teeth Stages I and II show no tooth loss due to periodontitis 10 / 20 Which stage first considers tooth loss as a staging criterion? Stage I Stage II Stage IV Stage III Tooth loss first appears as a criterion in Stage III 11 / 20 What characterizes Grade C case phenotype? Periodontal destruction matches biofilm deposits Heavy biofilm with a low level of destruction Destruction exceeds expectations, given biofilm deposits Minimal biofilm deposits with minimal destruction The level of destruction exceeds expectations given the biofilm deposits. 12 / 20 How is “localized” periodontitis defined? <10% teeth <40% teeth <30% teeth <20% teeth Classification defines localized as <30% of teeth involved 13 / 20 A case with Grade C bone loss/age ratio but Grade B HbA1c and smoking is classified as? Grade A Cannot determine Grade C Grade B Highest grade modifier (C) determines final grade 14 / 20 What diabetes status indicates Grade A? Any diabetes HbA1c ≥7.0% HbA1c <7.0% Normoglycemic/no diabetes Normoglycemic/no diagnosis of diabetes indicates Grade A 15 / 20 What characterizes bone loss pattern in Stage I and II? Neither Horizontal Both Vertical Stages I and II show mostly horizontal bone loss patterns 16 / 20 What defines “bite collapse” in Stage IV? <15 teeth All of above <10 opposing pairs <20 teeth <20 remaining teeth (10 opposing pairs) indicates bite collapse 17 / 20 Stage III and IV share which CAL measurement? ≥5mm 1-2mm 3-4mm <1mm Both Stage III and IV show CAL ≥5mm 18 / 20 Stage IV tooth loss is defined as? ≥3 teeth ≥5 teeth ≥6 teeth ≥4 teeth Stage IV shows ≥5 teeth lost due to periodontitis 19 / 20 What is direct evidence of Grade A progression? <2mm over 5 years ≥2mm over 5 years 1mm over 5 years No loss over 5 years Grade A shows slow rate with no loss over 5 years 20 / 20 What is the CAL measurement range for Stage I periodontitis? 1-2mm 3-4mm <1mm ≥5mm Stage I shows interdental CAL of 1-2mm as the earliest detectable stage CAL progression through stages: 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
