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 Patient has probing depths ≤4mm, horizontal bone loss <15%, non-smoker, normal glucose. What stage and grade? Stage I, Grade A Stage II, Grade A Stage II, Grade B Stage I, Grade B PD and bone loss indicate Stage I, risk factors indicate Grade A 2 / 20 What defines “bite collapse” in Stage IV? <15 teeth <10 opposing pairs <20 teeth All of above <20 remaining teeth (10 opposing pairs) indicates bite collapse 3 / 20 What % bone loss/age ratio indicates Grade B? 0.25-1.0 <0.25 >1.0 >2.0 Grade B shows moderate progression with bone loss/age ratio of 0.25-1.0 4 / 20 What bone loss/age % indicates Grade B? >1.0 2 0.25 to 1.0 <0.25 Grade B shows moderate rate with bone loss/age ratio 0.25 to 1.0 5 / 20 Patient with HbA1c 7.2% who never smoked would be modified to what grade? Grade C Can't determine Grade B Grade A HbA1c ≥7.0% modifies to Grade C, even without smoking 6 / 20 What case phenotype indicates Grade B? Heavy biofilm, low destruction Destruction commensurate with biofilm Minimal biofilm Destruction exceeds biofilm expectations Destruction commensurate with biofilm deposits 7 / 20 Grade C direct progression is indicated by what bone loss over 5 years? <2mm ≥2mm >4mm ≥3mm Grade C shows rapid rate with ≥2mm loss over 5 years 8 / 20 What indicates Grade C progression based on radiographic bone loss over 5 years? ≥2 mm No loss <1 mm <2 mm Grade C shows rapid progression with ≥2mm bone loss over 5 years 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 What HbA1c level in diabetic patients indicates Grade B? No diabetes <6.5% ≥7.0% <7.0% HbA1c <7.0% in patients with diabetes indicates Grade B -Diabetes has an impact on grading depending on the level of HbA1c. 11 / 20 A patient with 6mm CAL, 8 missing teeth due to perio, and severe ridge defects would be staged as? Key Points: Stage IV Stage III Stage II Stage I ≥5 teeth lost and severe ridge defects indicate Stage IV 12 / 20 If a patient smokes 12 cigarettes/day but has HbA1c of 6.5%, what’s the worst grade modifier? Grade C Grade A Grade B Can't determine Smoking ≥10 cigarettes/day indicates Grade C, regardless of HbA1c 13 / 20 When CAL is not available, what should be used for staging? Probing depth Mobility RBL Bleeding on probing Classification states RBL should be used if CAL unavailable 14 / 20 Stage II maximum probing depth is? ≤7 mm ≤6 mm ≤4 mm ≤5 mm Stage II complexity shows maximum probing depth ≤5 mm 15 / 20 Which grade should clinicians initially assume? Grade C No grade Grade B Grade A Clinicians should initially assume Grade B Key Points: 16 / 20 How many teeth lost due to periodontitis indicates Stage III? ≤3 teeth ≤4 teeth ≤2 teeth ≤5 teeth Stage III is characterized by ≤4 teeth lost due to periodontitis 17 / 20 Which combination indicates Stage III complexity? Probing depth ≤4mm + vertical bone loss Probing depth ≥6mm + Class II furcation Probing depth ≤5mm + horizontal bone loss Probing depth ≥6mm + mobility 1 Stage III includes probing depths ≥6mm and Class II furcations 18 / 20 What diabetes status indicates Grade A? HbA1c ≥7.0% Any diabetes HbA1c <7.0% Normoglycemic/no diabetes Normoglycemic/no diagnosis of diabetes indicates Grade A 19 / 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 20 / 20 Which stage first presents with furcation involvement? Stage III Stage I Stage II Stage IV Furcation Class II or III first appears in Stage III complexity 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
