Register
Question 1
0.1-0.9 indicate what plaque score?
Correct Answer:
Good
Explanation:
Plaque scoring looks at how much plaque is left on tooth surfaces and expresses it as a decimal range. A value in the range of 0.1 to 0.9 shows that only a small amount of plaque is present on some surfaces, not widespread across the dentition. That level is considered Good because it indicates effective plaque control with room for minor improvement, rather than being completely clean (which would be near 0.0) or having substantial plaque buildup (which would push the score higher toward Fair or Poor). In practice, this range reflects a clean dentition overall with good daily hygiene and brushing/flossing habits.
Question 2
In the PHP scoring system, what does a score of 0 indicate?
Correct Answer:
No debris
Explanation:
In the PHP scoring system, cleanliness on tooth surfaces is quantified by checking defined sections for debris. A zero means there is no debris detected in any of the assessed sections, indicating a clean surface. As debris is found in more sections, the score increases, showing reduced cleanliness. So a zero score directly corresponds to no debris. The other options describe debris present in sections, which would yield nonzero scores.
Question 3
Which product is used for tray applications and should be avoided in patients with restorations?
Correct Answer:
Gel or Foam 1.23% APF used in tray
Explanation:
Tray fluoride therapy uses fluoride gel or foam delivered in a tray to maximize contact with the teeth. This often uses acidulated phosphate fluoride (APF) at 1.23%, which has a low pH that helps fluoride uptake by enamel. However, that acidity can attack restorative materials such as composites and porcelains, causing surface roughening, discoloration, or micro-pitting. Because of this risk, APF gel or foam used in trays should be avoided in patients with restorations. Safer alternatives for those patients include neutral pH fluoride gels like 2% sodium fluoride, fluoride varnish, or fluoride rinses, which provide protection without damaging restorations.
Question 4
1.0-1.9 indicate what plaque score?
Correct Answer:
Fair
Explanation:
In plaque scoring, you average the plaque scores across the examined tooth surfaces to get a mean plaque score. This mean is then interpreted using descriptive ranges to describe the level of plaque control: lower numbers mean cleaner surfaces, higher numbers mean more plaque. A mean in the 1.0 to 1.9 range reflects more plaque than the ideal (0) and more than what would be considered good, but not enough to be labeled poor. That middle-ground level is described as Fair, indicating a moderate amount of plaque that suggests room for improvement in plaque control techniques. So, 1.0–1.9 fits the Fair category.
Question 5
Severe Early Childhood Caries (S-ECC) differs from ECC in that S-ECC does what?
Correct Answer:
ECC is one or more dmfs in children under 6; S-ECC varies with age
Explanation:
Severity classifications for caries in young children hinge on age. Severe Early Childhood Caries uses age-specific thresholds for the number of decayed, missing, and filled surfaces (dmfs) to define what counts as severe, so the cut-off changes as a child gets older. ECC, by contrast, uses a single criterion for caries experience (dmfs > 0) within the target age range. Because the potential number of affected surfaces increases with age and eruption patterns change, age-adjusted thresholds in S-ECC better reflect true severity rather than applying one fixed number across all preschool ages. dmfs represents the count of decayed, missing due to caries, and filled surfaces in primary teeth.
Question 1
Exam overview

About this Exam

Prepare with the StudentRDH Community Health and Research Principles Practice Test practice quiz. This question bank includes 10 questions covering indicate, score, plaque, s-ecc, and describes. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

StudentRDH Community Health and Research Principles Practice Test

This practice set contains 10 questions from the matching question bank and focuses on indicate, score, plaque, s-ecc, and describes. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions

Archer Child Health Cardio/Respiratory Practice Exam

5 min

Arizona Health Insurance Practice Exam

0 min

Arizona Life and Health Practice Exam

0 min

Certified in Healthcare Compliance (CHC) Practice Test

0 min

Certified in Healthcare Privacy Compliance (CHPC) Practice Exam

0 min

Certified Professional in Health Care Risk Management (CPHRM) Practice Exam

0 min