Question 1

Current understanding indicates that abfractions and abrasions both share the term noncarious cervical lesions because these lesions are indistinguishable and have multifactorial causes.

Accepted Answer

Abfractions and abrasions are indeed classified under noncarious cervical lesions due to their similar appearance and multifactorial etiology, which includes factors like mechanical forces and chemical processes, rather than being caused by caries. This classification is based on their shared characteristics and the complex interplay of causes, making the statement and reason both true and directly related.

Question 2

Dental hygiene practitioners have an ethical obligation to provide client-centered self-care education and instruction for each client.Which of the following is the most important reason for fulfilling this obligation?

Accepted Answer

Clients lacking the necessary skills and knowledge for proper dental self-care are at a significant disadvantage in maintaining their oral health, which is a fundamental reason for dental professionals to provide such education.

Question 3

Jane Jones,age 28,is a new client.Oral assessment findings reveal generalized gingival inflammation,bleeding on probing in all molars and mandibular anterior teeth,localized 4-mm pockets,and no gingival recession.Light marginal plaque biofilm is generalized,and calculus deposits are detected in the mandibular anterior teeth,maxillary molars,and lingual surfaces of the mandibular posterior teeth.Which of the following toothbrushing methods should be recommended?

Accepted Answer

The Modified Bass technique is recommended for patients with gingival inflammation, bleeding on probing, and periodontal pockets, as it effectively cleans the gingival margin and removes plaque biofilm without causing trauma to the gums. This method involves positioning the bristles at a 45-degree angle to the gumline and making small circular motions, which is suitable for Jane's condition. The other methods are not specifically designed for patients with periodontal issues like Jane's.

Question 4

It is a valuable feature that power toothbrushes indicate when a client is exerting excessive force when toothbrushing because it is more difficult to determine the force one is exerting with a power toothbrush than a manual toothbrush.

Accepted Answer

The statement is true because power toothbrushes often include pressure sensors that alert the user when too much force is applied, which is beneficial for preventing gum damage or enamel wear. The reason is also true and directly related because it is indeed more challenging for individuals to gauge the amount of pressure they are applying with a power toothbrush compared to a manual one, making the feature especially useful.

Question 5

Manual toothbrush head size selection is based all of the following characteristics except one.Which one is this exception?

Accepted Answer

The correct choice for the exception is the client's age because the selection of a manual toothbrush head size should be based on the size of the client's mouth, the efficiency of plaque biofilm removal, and the ability to access all areas of the mouth, rather than the age of the client. Age does not directly determine the appropriate toothbrush head size; the physical characteristics and dental needs of the individual do.

Question 6

The time required for toothbrush bristle wear is highly variable among individuals.Clients should be advised to replace toothbrushes every 3 months.

Accepted Answer

The answer of The time required for toothbrush bristle wear...

Question 7

When "modifying" a particular toothbrushing technique,all of the following are true except which one?

Accepted Answer

The correct toothbrushing techniques, such as the Bass, Stillman, and modified versions of these methods, do not incorporate bristle movement in a horizontal direction across the teeth. Horizontal brushing can lead to abrasion lesions on the teeth due to the side-to-side action. The modified techniques typically involve gentle, circular, or vertical strokes aimed at cleaning the gum line and tooth surfaces effectively without causing damage.

Question 8

Anatomic factors should be considered as contributing to the multifactorial cause of soft-tissue lesions such as gingival recession.Each of the following would be considered an anatomic factor except one.Which one is this exception?

Accepted Answer

Periodontitis is not considered an anatomic factor but rather a disease process that affects the supporting structures of the teeth, leading to issues such as gingival recession. Anatomic factors, like thin alveolar plates, frenal pull, and tooth malposition, directly relate to the physical characteristics or positioning of oral structures that can predispose to soft-tissue lesions.

Question 9

Providing toothbrushing instruction should be conducted in segments.Which of the following steps should come first?

Accepted Answer

The client demonstrating their currently used method first allows the dental hygienist to assess their current technique, identify any issues, and tailor the instruction to address specific needs or correct any improper techniques.

Question 10

"Place the brush at a 45-degree angle with bristles directed apically and pressed lightly to direct into sulcus;vibrate the brush while keeping the filaments within the sulcus" describes which of the following toothbrushing techniques?

Accepted Answer

The described technique matches the Bass toothbrushing method, which emphasizes placing the brush at a 45-degree angle towards the gumline and using a vibrating motion to clean the sulcus area effectively.

Question 11

The client asks the dental hygienist if she should use a power toothbrush instead of a manual toothbrush.All of the following factors should be considered when the dental hygienist is formulating the response except which one?

Accepted Answer

The choice of a toothbrush (power vs. manual) is primarily influenced by factors such as client preference, current research, and the client's current oral hygiene status. The client's current flossing routine, while important for overall oral health, does not directly impact the decision between using a power or manual toothbrush.

Question 12

The stiffness of a manual toothbrush is dependent on its filament characteristics.Longer and narrower filaments tend to be characteristic of stiffer toothbrushes.

Accepted Answer

The stiffness of a manual toothbrush is indeed dependent on its filament characteristics, making the first statement true. However, longer and narrower filaments typically result in softer, not stiffer, toothbrushes, making the second statement false.

Question 13

All of the following factors should be considered when determining how often people should brush their teeth except one.Which one is this exception?

Accepted Answer

The answer of All of the following factors should be...

Question 14

Each of these factors contributes to the rationale for including tongue brushing or cleansing in oral care routines except one.Which one is this exception?

Accepted Answer

Geographic tongue is a benign condition characterized by the appearance of a map-like pattern on the tongue surface. It is not caused by bacteria on the tongue, making this the exception. The other options (A, B, C) are valid reasons for including tongue brushing or cleansing in oral care routines, as they address concerns related to bacteria and oral health.

Question 15

When a toothbrush retains potentially infectious microorganisms within its filaments and then transmits them,the toothbrush would be most accurately labeled a:

Accepted Answer

A fomite is any inanimate object or substance capable of carrying infectious organisms (such as germs or parasites) and hence transferring them from one individual to another. A toothbrush retaining and transmitting potentially infectious microorganisms fits this definition.

Question 16

Which of the following methods of toothbrushing would be most effective in an orthodontic client?

Accepted Answer

Charter's method is most effective for orthodontic clients because it is specifically designed to clean around brackets and wires, helping to remove plaque and debris effectively without damaging the orthodontic appliances.

Question 17

Susie Smith,age 5,has an appointment for an oral prophylaxis.On examination the dental hygienist notes moderate plaque biofilm and gingival inflammation generalized throughout the mouth.Which of the following toothbrushing methods should be recommended to most effectively improve Susie's oral hygiene?

Accepted Answer

The circular method, also known as the Fones method, is often recommended for young children like Susie because it is simple and effective for their level of dexterity.

Question 18

When manual toothbrushing instruction is presented to a client,all of the following factors are essential to include except one.Which one is this exception?

Accepted Answer

The brand of the toothbrush is not essential for effective toothbrushing instruction; what matters more are the technique, duration, thoroughness, and frequency of toothbrushing.

Question 19

Power toothbrushes using which of the following modes of action have been conclusively demonstrated to be more effective than traditional manual toothbrushes?

Accepted Answer

Oscillating rotating power toothbrushes have been shown through various studies to be more effective than manual toothbrushes in reducing plaque and gingivitis. This is due to their unique action of rotating in one direction and then the other, which helps in breaking up plaque effectively.

Question 20

What is the average time most people spend brushing their teeth?

Accepted Answer

Most people brush their teeth for 45 to 60 seconds on average, which is less than the 2 to 3 minutes recommended by dental professionals.

Quiz 21: Toothbrushing