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 In Stage II periodontitis, what is the CAL range? 3-4mm ≥5mm 1-2mm <1mm Stage II is characterized by 3-4mm interdental CAL 2 / 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 3 / 20 Patient has probing depths ≤4mm, horizontal bone loss <15%, non-smoker, normal glucose. What stage and grade? Stage II, Grade A Stage I, Grade A Stage II, Grade B Stage I, Grade B PD and bone loss indicate Stage I, risk factors indicate Grade A 4 / 20 Stage IV tooth loss is defined as? ≥5 teeth ≥6 teeth ≥3 teeth ≥4 teeth Stage IV shows ≥5 teeth lost due to periodontitis 5 / 20 In Stage I periodontitis, what is the interdental CAL measurement? 1-2 mm ≥5 mm 3-4 mm >6 mm Stage I shows earliest CAL with interdental CAL of 1-2mm as specified in classification 6 / 20 How many teeth lost due to periodontitis indicates Stage III? ≤3 teeth ≤4 teeth ≤5 teeth ≤2 teeth Stage III is characterized by ≤4 teeth lost due to periodontitis 7 / 20 What is the radiographic bone loss (RBL) percentage in Stage I? >50% 33-50% 15-33% <15% 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] 8 / 20 In Stage I and II, how many teeth are lost due to periodontitis? No tooth loss 1-2 teeth >4 teeth 3-4 teeth Stages I and II show no tooth loss due to periodontitis 9 / 20 What is the indirect evidence of Grade A progression (% bone loss/age)? >1.0 0.25 to 1.0 None <0.25 Grade A indirect evidence is <0.25 bone loss/age ratio 10 / 20 What characterizes Grade A case phenotype? Minimal biofilm Matches biofilm deposits Heavy biofilm, low destruction Exceeds biofilm expectations Heavy biofilm deposits with low levels of destruction 11 / 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 12 / 20 A patient with 6mm CAL, 8 missing teeth due to perio, and severe ridge defects would be staged as? Stage I Stage IV Stage II Stage III Key Points: ≥5 teeth lost and severe ridge defects indicate Stage IV 13 / 20 What characterizes bone loss pattern in Stage I and II? Vertical Horizontal Both Neither Stages I and II show mostly horizontal bone loss patterns 14 / 20 Stage II RBL is described as what percentage? 15-33% >50% <15% 33-50% Stage II shows coronal third RBL 15-33% 15 / 20 How many teeth lost due to periodontitis indicates Stage IV? ≥4 teeth ≥3 teeth ≥5 teeth ≥6 teeth Stage IV shows ≥5 teeth lost due to periodontitis 16 / 20 If a patient has lost 6 teeth due to periodontitis but has Stage II CAL/RBL, what stage would they be? Stage III Stage I Stage IV Stage II Tooth loss can modify stage definition – ≥5 teeth lost moves to Stage IV regardless of other factors 17 / 20 What characterizes Grade C case phenotype? Minimal biofilm deposits with minimal destruction Periodontal destruction matches biofilm deposits Destruction exceeds expectations, given biofilm deposits Heavy biofilm with a low level of destruction The level of destruction exceeds expectations given the biofilm deposits. 18 / 20 Which stage first presents with furcation involvement? Stage IV Stage III Stage I Stage II Furcation Class II or III first appears in Stage III complexity 19 / 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 20 / 20 At what location is RBL measured? Random site Average of all sites Least affected site Most affected site RBL is measured at site of greatest loss 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
