Periodontal ClassificationDentistry MCQs 0% Navigate to 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? ≥3mm <2mm >4mm ≥2mm Grade C shows rapid rate with ≥2mm loss over 5 years 2 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥4 teeth ≥6 teeth ≥5 teeth ≥3 teeth Stage IV shows ≥5 teeth lost due to periodontitis 3 / 20 When is extent considered “localized”? <10% teeth <40% teeth <20% teeth <30% teeth Localized is defined as <30% of teeth involved 4 / 20 In assessing tooth loss for staging, what type of tooth loss is counted? All missing teeth Only periodontitis-related loss Only posterior teeth Only anterior teeth Only teeth lost due to periodontitis are considered in staging 5 / 20 A case with Grade C bone loss/age ratio but Grade B HbA1c and smoking is classified as? Grade C Grade A Cannot determine Grade B Highest grade modifier (C) determines final grade 6 / 20 Stage II maximum probing depth is? ≤4 mm ≤6 mm ≤7 mm ≤5 mm Stage II complexity shows maximum probing depth ≤5 mm 7 / 20 What case phenotype indicates Grade B? Destruction commensurate with biofilm Destruction exceeds biofilm expectations Minimal biofilm Heavy biofilm, low destruction Destruction commensurate with biofilm deposits 8 / 20 Which type of bone loss is predominantly seen in Stage I and II? Both equally Horizontal Neither Vertical Stages I and II show mostly horizontal bone loss 9 / 20 Which Stage first presents with vertical bone loss ≥3mm? Stage I Stage IV Stage III Stage II Vertical bone loss ≥3mm first appears in Stage III complexity factors 10 / 20 What indicates Grade C progression based on radiographic bone loss over 5 years? <1 mm ≥2 mm <2 mm No loss Grade C shows rapid progression with ≥2mm bone loss over 5 years 11 / 20 At what location is RBL measured? Average of all sites Least affected site Random site Most affected site RBL is measured at site of greatest loss 12 / 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 13 / 20 What characterizes bone loss pattern in Stage I and II? Vertical Both Horizontal Neither Stages I and II show mostly horizontal bone loss patterns 14 / 20 How many teeth lost due to periodontitis indicates Stage III? ≤3 teeth ≤5 teeth ≤2 teeth ≤4 teeth Stage III is characterized by ≤4 teeth lost due to periodontitis 15 / 20 When CAL is not available, what should be used for staging? Probing depth Mobility Bleeding on probing RBL Classification states RBL should be used if CAL unavailable 16 / 20 What is direct evidence of Grade A progression? No loss over 5 years <2mm over 5 years 1mm over 5 years ≥2mm over 5 years Grade A shows slow rate with no loss over 5 years 17 / 20 A patient with 6mm CAL, 8 missing teeth due to perio, and severe ridge defects would be staged as? Stage I Key Points: Stage IV Stage II Stage III ≥5 teeth lost and severe ridge defects indicate Stage IV 18 / 20 In Stage I and II, how many teeth are lost due to periodontitis? No tooth loss 3-4 teeth 1-2 teeth >4 teeth Stages I and II show no tooth loss due to periodontitis 19 / 20 Which combination indicates Stage III complexity? Probing depth ≤5mm + horizontal bone loss Probing depth ≤4mm + vertical bone loss Probing depth ≥6mm + Class II furcation Probing depth ≥6mm + mobility 1 Stage III includes probing depths ≥6mm and Class II furcations 20 / 20 What characterizes Grade C case phenotype? Heavy biofilm with a low level of destruction Periodontal destruction matches biofilm deposits Destruction exceeds expectations, given biofilm deposits Minimal biofilm deposits with minimal destruction The level of destruction exceeds expectations given the biofilm deposits. 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
