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 Which combination indicates Stage III complexity? Probing depth ≥6mm + Class II furcation Probing depth ≥6mm + mobility 1 Probing depth ≤5mm + horizontal bone loss Probing depth ≤4mm + vertical bone loss Stage III includes probing depths ≥6mm and Class II furcations 2 / 20 When do vertical bone defects ≥3mm first appear as a complexity factor? Stage I Stage III Stage IV Stage II Vertical bone loss ≥3mm first appears in Stage III 3 / 20 What indicates Grade C progression based on radiographic bone loss over 5 years? <2 mm ≥2 mm No loss <1 mm Grade C shows rapid progression with ≥2mm bone loss over 5 years 4 / 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 5 / 20 What characterizes bone loss pattern in Stage I and II? Horizontal Vertical Both Neither Stages I and II show mostly horizontal bone loss patterns 6 / 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 IV Stage II Stage III Tooth loss can modify stage definition – ≥5 teeth lost moves to Stage IV regardless of other factors 7 / 20 What defines “bite collapse” in Stage IV? <20 teeth <10 opposing pairs <15 teeth All of above <20 remaining teeth (10 opposing pairs) indicates bite collapse 8 / 20 What case phenotype indicates Grade B? Minimal biofilm Destruction exceeds biofilm expectations Heavy biofilm, low destruction Destruction commensurate with biofilm Destruction commensurate with biofilm deposits 9 / 20 How is “localized” periodontitis defined? <10% teeth <20% teeth <30% teeth <40% teeth Classification defines localized as <30% of teeth involved 10 / 20 What smoking history indicates Grade B? ≥10 cigarettes/day Non-smoker Any smoking <10 cigarettes/day <10 cigarettes/day modifies to Grade B 11 / 20 Which stage first presents with furcation involvement? Stage IV Stage I Stage II Stage III Furcation Class II or III first appears in Stage III complexity 12 / 20 In Stage II, what is the maximum probing depth? ≤4 mm ≤7 mm ≤6 mm ≤5 mm Stage II complexity shows maximum probing depth ≤5 mm 13 / 20 What is the indirect evidence of Grade A progression (% bone loss/age)? 0.25 to 1.0 >1.0 None <0.25 Grade A indirect evidence is <0.25 bone loss/age ratio 14 / 20 What’s the minimum criteria needed to shift to Stage IV? Furcation involvement Vertical bone loss ≥5 teeth lost RBL below middle third of the root ≥5 teeth lost automatically moves to Stage IV 15 / 20 What characterizes Grade A case phenotype? Exceeds biofilm expectations Matches biofilm deposits Minimal biofilm Heavy biofilm, low destruction Heavy biofilm deposits with low levels of destruction 16 / 20 At what location is RBL measured? Random site Most affected site Least affected site Average of all sites RBL is measured at site of greatest loss 17 / 20 In absence of CAL measurements, what primary criteria is used? Probing depth Mobility Bleeding Bone loss Radiographic bone loss is used when CAL unavailable 18 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥4 teeth ≥3 teeth ≥6 teeth ≥5 teeth Stage IV shows ≥5 teeth lost due to periodontitis 19 / 20 How many opposing pairs of teeth indicate potential masticatory dysfunction in Stage IV? <10 pairs <8 pairs <9 pairs <12 pairs <10 opposing pairs (20 teeth) indicates masticatory dysfunction 20 / 20 What is the radiographic bone loss (RBL) percentage in Stage I? 33-50% <15% >50% 15-33% 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] 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
