DH203 Final | Questions with 100% Verified Answers | Latest Update 2026/2027

DH203 Final | Questions with 100% Verified Answers |
Latest Update 2026/2027
Question: What is the maximum percentage of bleeding on probing (BOP) allowed in a
clinically healthy periodontium?
Answer: Less than 10%


Question: What is the approximate measurement of a healthy gingival sulcus?
Answer: 1-3 mm


Question: Gingivitis is inflammation of the gingiva without
Answer: attachment loss


Question: How is clinical gingivitis classified if 10-30% of sites demonstrate BOP?
Answer: Localized


Question: How is clinical gingivitis classified if more than 30% of sites demonstrate BOP?
Answer: Generalized


Question: Every patient with gingivitis will eventually develop periodontitis.
Answer: False


Question: Which factors influence the progression from gingivitis to periodontitis?
Answer: Host susceptibility Genetics Smoking Immune response


Question: Gingivitis is considered a _____ inflammation.
Answer: reversible


Question: What is the primary cause of gingivitis?
Answer: Biofilm


Question: A patient with generalized BOP but no history of bone loss is classified as having
biofilm-induced gingivitis on an intact periodontium.
Answer: True


Question: Match the gingival health status to its BOP percentage:
Answer: Healthy = <10% Localized Gingivitis = 10-30% Generalized Gingivitis = 30%


Question: Does gingivitis involve alveolar bone loss?
Answer: No

,Question: What is the hallmark finding that distinguishes periodontitis from gingivitis?
Answer: Clinical attachment loss


Question: Periodontitis involves irreversible destruction of supporting tissues.
Answer: True


Question: Which distinctions were eliminated by the 2017 Periodontal Classification system?
Answer: Chronic periodontitis Aggressive periodontitis


Question: In the 2017 classification, what term describes the severity and complexity of
management?
Answer: Stage


Question: In the 2017 classification, what term estimates the rate of disease progression?
Answer: Grade


Question: What does 'Stage' describe in the 2017 classification?
Answer: Severity Amount of destruction


Question: Match the Grade to its progression rate:
Answer: Grade A = Slow Grade B = Moderate Grade C = Rapid


Question: Which stage includes additional problems like masticatory dysfunction and tooth
migration?
Answer: Stage IV


Question: Which are important grade modifiers in the 2017 classification?
Answer: Smoking Diabetes Age


Question: What is the term for periodontitis that returns after successful treatment?
Answer: Recurrent periodontitis


Question: Stage III and Stage IV both demonstrate severe attachment and bone loss.
Answer: True


Question: Periodontitis is characterized by _______ attachment loss.
Answer: irreversible


Question: What is the primary difference between Stage III and Stage IV?
Answer: Complexity of rehabilitation

, Question: How many stages are there in the 2017 periodontitis classification?
Answer: Four


Question: Which grade is assigned to a patient with rapid disease progression?
Answer: Grade C


Question: What are the four primary tissues of the periodontium?
Answer: Gingiva Periodontal ligament Cementum Alveolar bone


Question: Which tissue suspends the tooth in its socket?
Answer: Periodontal ligament


Question: The existence of alveolar bone is dependent on the presence of teeth.
Answer: True


Question: Where is the junctional epithelium attached in periodontal health?
Answer: Near the CEJ


Question: Order the histologic stages of periodontal disease from earliest to latest:
Answer: 1.Initial Lesion 2.Early Lesion 3.Established Lesion 4. Advanced Lesion


Question: In which histologic lesion does periodontitis (bone loss) actually develop?
Answer: Advanced Lesion


Question: Match the CEJ relationship to the 'OMG' acronym:
Answer: O = Overlap M = Meet G = Gap


Question: What happens to alveolar bone following tooth loss?
Answer: Resorption


Question: As periodontitis develops, the junctional epithelium migrates ____
Answer: apically


Question: Which histologic lesion is characterized by chronic gingivitis?
Answer: Established Lesion


Question: What major tissue is absent around a dental implant compared to a natural tooth?
Answer: Periodontal ligament