TCDHA Perio iii Final Exam Latest 2025

pg. 1 TCDHA Perio iii Final Exam Latest 2025 With 230 Prep Questions and Correct Verified Answers/ Perio III Final Exam 2025 TCDHA Prep Qs & As (Brand New!)

• Phase I of periodontal therapy includes all of the following, except
• elimination of biofilm/plaque
• stop progression
• return dentition to health

D. reshape tissues: D. reshape tissues

• Which type of periodontal surgery therapy is used to cover recession

defects?

• aesthetic surgery
• plastic surgery
• pre-prosthetic techniques

D. placement of dental implants: A. aesthetic surgery

• T/F. Orthodontics should be done first, prior to periodontal therapy be- cause

it is easier to maintain hygiene when all of the teeth are in correct position.: false

• How much bone fill, at least, is ideal for periodontal surgery cases?

A. 25%

B. 50%

C. 75%

D. 100%: B. 50%

• Of the following, which is one that you do not need to be high for tests for a

disease to determine efficacy? 1 / 4

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• incidence
• sensitivity
• specificity

D. you need all of the above to be high: A. incidence

6. T/F. CAL increases with age.: true

• According the NHANES data, about how many of US adults had

periodontitis?

A. 12%

B. 27%

C. 42%

D. 63%: C. 42%

8. T/F. Periodontitis prevalence is higher among females.: false

• Which of the following is not one of the major risk factors for periodontitis?
• diabetes
• fluoride exposure
• smoking

D. all of the above are major risk factors: B. fluoride exposure

• Which ethnic group has the least risk of periodontitis?
• black
• hispanic
• white

D. asian: C. white

• What is the critical probing depth that determines if surgical therapy will

result in clinical attachment gain versus loss?

• 3 mm
• 4.2 mm 2 / 4

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• 5.4 mm

D. 6.6 mm: C. 5.4 mm

• Persistent pockets of or more will need surgical treatment and a referral

to a periodontist.

• 3 mm
• 4 mm
• 5 mm

D. 6 mm: D. 6 mm

• What is the term describing the number of patients with disease in a population

at a given point in time?

• incidence
• prevalence
• sensitivity

D. specificity: B. prevalence

• Crown lengthening, ridge augmentation, and vestibular deepening are all

part of which aspect of periodontal surgical therapy?

• aesthetic surgery
• plastic surgery
• pre-prosthetic techniques

D. placement of dental implants: C. pre-prosthetic techniques

• Which type of periodontal surgery therapy is used to create or widen

attached gingiva?

• aesthetic surgery
• plastic surgery
• pre-prosthetic techniques

D. placement of dental implants: B. plastic surgery

• / 4

pg. 4

• What is the term describing the number of new cases with disease in a

population over a given period of time?

• incidence
• prevalence
• sensitivity

D. specificity: A. incidence

• Which of the following is a possible outcome of surgical therapy?
• long junctional epithelium
• periodontal regeneration
• pocket reduction with loss of attachment

D. all of the above: D. all of the above

• You want to preserve at least of keratinized tissue around teeth.
• 2 mm
• 3 mm
• 4 mm

D. 5 mm: A. 2 mm

• What is the term describing the number of diseased patients who are

correctly identified as having disease?

• incidence
• prevalence
• sensitivity

D. specificity: C. sensitivity

• What is the term describing the number of healthy patients who are correctly

defined as not having disease?

• incidence
• prevalence
• / 4