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 % 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 2 / 20 What smoking history indicates Grade B? Any smoking Non-smoker ≥10 cigarettes/day <10 cigarettes/day <10 cigarettes/day modifies to Grade B 3 / 20 In Stage II periodontitis, what is the CAL range? 3-4mm ≥5mm 1-2mm <1mm Stage II is characterized by 3-4mm interdental CAL 4 / 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 5 / 20 Stage II maximum probing depth is? ≤6 mm ≤7 mm ≤4 mm ≤5 mm Stage II complexity shows maximum probing depth ≤5 mm 6 / 20 How many teeth lost due to periodontitis indicates Stage III? ≤4 teeth ≤3 teeth ≤2 teeth ≤5 teeth Stage III is characterized by ≤4 teeth lost due to periodontitis 7 / 20 Which grade should clinicians initially assume? Grade C Grade A No grade Grade B Clinicians should initially assume Grade B Key Points: 8 / 20 Which Stage first presents with vertical bone loss ≥3mm? Stage II Stage IV Stage I Stage III Vertical bone loss ≥3mm first appears in Stage III complexity factors 9 / 20 In absence of CAL measurements, what primary criteria is used? Bone loss Bleeding Mobility Probing depth Radiographic bone loss is used when CAL unavailable 10 / 20 A patient with 6mm CAL, 8 missing teeth due to perio, and severe ridge defects would be staged as? Key Points: Stage II Stage IV Stage I Stage III ≥5 teeth lost and severe ridge defects indicate Stage IV 11 / 20 When do vertical bone defects ≥3mm first appear as a complexity factor? Stage I Stage IV Stage III Stage II Vertical bone loss ≥3mm first appears in Stage III 12 / 20 What defines “bite collapse” in Stage IV? <20 teeth <15 teeth <10 opposing pairs All of above <20 remaining teeth (10 opposing pairs) indicates bite collapse 13 / 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 III Stage II Tooth loss can modify stage definition – ≥5 teeth lost moves to Stage IV regardless of other factors 14 / 20 In Stage II, what is the maximum probing depth? ≤5 mm ≤6 mm ≤7 mm ≤4 mm Stage II complexity shows maximum probing depth ≤5 mm 15 / 20 Which type of bone loss is predominantly seen in Stage I and II? Vertical Both equally Horizontal Neither Stages I and II show mostly horizontal bone loss 16 / 20 Stage IV tooth loss is defined as? ≥3 teeth ≥6 teeth ≥5 teeth ≥4 teeth Stage IV shows ≥5 teeth lost due to periodontitis 17 / 20 What is the radiographic bone loss (RBL) percentage in Stage I? 33-50% 15-33% <15% >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] 18 / 20 Stage III and IV share which CAL measurement? <1mm ≥5mm 1-2mm 3-4mm Both Stage III and IV show CAL ≥5mm 19 / 20 Patient with HbA1c 7.2% who never smoked would be modified to what grade? Grade C Grade B Can't determine Grade A HbA1c ≥7.0% modifies to Grade C, even without smoking 20 / 20 What diabetes status indicates Grade A? Any diabetes Normoglycemic/no diabetes HbA1c <7.0% HbA1c ≥7.0% Normoglycemic/no diagnosis of diabetes indicates Grade A 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
