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 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] 2 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥6 teeth ≥3 teeth ≥4 teeth ≥5 teeth Stage IV shows ≥5 teeth lost due to periodontitis 3 / 20 What is maximum probing depth in Stage I? ≤5 mm ≤4 mm ≤6 mm ≤3 mm Stage I complexity shows maximum probing depth ≤4 mm 4 / 20 In Stage II, what is the maximum probing depth? ≤6 mm ≤5 mm ≤4 mm ≤7 mm Stage II complexity shows maximum probing depth ≤5 mm 5 / 20 What diabetes status indicates Grade A? HbA1c <7.0% Normoglycemic/no diabetes HbA1c ≥7.0% Any diabetes Normoglycemic/no diagnosis of diabetes indicates Grade A 6 / 20 What HbA1c level in diabetic patients indicates Grade B? <6.5% ≥7.0% No diabetes <7.0% HbA1c <7.0% in patients with diabetes indicates Grade B -Diabetes has an impact on grading depending on the level of HbA1c. 7 / 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 8 / 20 What case phenotype indicates Grade B? Destruction exceeds biofilm expectations Heavy biofilm, low destruction Minimal biofilm Destruction commensurate with biofilm Destruction commensurate with biofilm deposits 9 / 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 10 / 20 In Stage I periodontitis, what is the interdental CAL measurement? ≥5 mm 1-2 mm >6 mm 3-4 mm Stage I shows earliest CAL with interdental CAL of 1-2mm as specified in classification 11 / 20 What is the CAL measurement range for Stage I periodontitis? <1mm 1-2mm 3-4mm ≥5mm Stage I shows interdental CAL of 1-2mm as the earliest detectable stage CAL progression through stages: 12 / 20 What is considered bite collapse in Stage IV? <22 teeth <15 teeth <20 teeth <18 teeth <20 remaining teeth (10 opposing pairs) indicates bite collapse in Stage IV 13 / 20 Stage II RBL is described as what percentage? <15% 33-50% >50% 15-33% Stage II shows coronal third RBL 15-33% 14 / 20 Stage II maximum probing depth is? ≤5 mm ≤6 mm ≤4 mm ≤7 mm Stage II complexity shows maximum probing depth ≤5 mm 15 / 20 Which grade should clinicians initially assume? Grade C Grade B No grade Grade A Clinicians should initially assume Grade B Key Points: 16 / 20 What is the indirect evidence of Grade A progression (% bone loss/age)? <0.25 None >1.0 0.25 to 1.0 Grade A indirect evidence is <0.25 bone loss/age ratio 17 / 20 Patient with HbA1c 7.2% who never smoked would be modified to what grade? Grade C Grade A Can't determine Grade B HbA1c ≥7.0% modifies to Grade C, even without smoking 18 / 20 What characterizes Grade A case phenotype? Exceeds biofilm expectations Heavy biofilm, low destruction Minimal biofilm Matches biofilm deposits Heavy biofilm deposits with low levels of destruction 19 / 20 What defines “bite collapse” in Stage IV? <15 teeth <10 opposing pairs All of above <20 teeth <20 remaining teeth (10 opposing pairs) indicates bite collapse 20 / 20 How many teeth lost due to periodontitis indicates Stage III? ≤4 teeth ≤3 teeth ≤5 teeth ≤2 teeth Stage III is characterized by ≤4 teeth lost due to periodontitis 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
