CPT Study Guide 2026
Everything you need to pass the CPT exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CPT Exam Format at a Glance
📚 CPT Topics to Study (23)
✍️ Sample CPT Questions & Answers
1. Which bacteria are MOST strongly associated with recurrent periodontitis during SPT?
P. gingivalis and T. forsythia are key members of the 'red complex' and are the primary pathogens driving periodontitis progression and recurrence during SPT.
2. Which systemic condition is most strongly associated with increased severity of periodontal disease?
Diabetes mellitus has the strongest bidirectional relationship with periodontal disease, with poor glycemic control worsening periodontal outcomes and vice versa.
3. Which factor MOST impacts the usefulness of documentation & health records outputs in Certified Periodontal Therapist?
Information is most useful when it is timely, accurate, and relevant to the needs of the people who will use it.
4. Osteoporosis may affect periodontal outcomes because:
Reduced systemic bone mineral density in osteoporosis may be associated with greater alveolar bone loss and more severe periodontal disease progression.
5. A patient with HIV/AIDS may present with which unique periodontal condition not commonly seen in healthy patients?
HIV/AIDS patients are prone to unique periodontal conditions including linear gingival erythema and necrotizing periodontal diseases due to immunosuppression.
6. A widened periodontal ligament (PDL) space on a radiograph may indicate:
A widened PDL space may indicate occlusal trauma, early inflammatory changes, or periapical pathology affecting the supporting structures.