Question 1

Which of the following describes the presence of bleeding on probing?

Accepted Answer

Occurs when there is a disruption of the sulcular epithelium

Question 2

The gingival landmark that is the entrance to the crevice is called

Accepted Answer

The marginal gingiva is the gingival landmark that is the entrance to the crevice or sulcus. The attached gingiva is the part of the gingiva that is tightly bound to the underlying bone and stays in place around the teeth, while the free gingiva is the part of the gingiva that surrounds the tooth but is not attached to the bone. Gingival pocket refers to the space that forms between the gingiva and the tooth when the sulcus becomes deeper due to inflammation or other factors.

Question 3

All of the following are causes of pathologic tooth mobility except one. Which one is the exception?

Accepted Answer

Gingival recession can cause aesthetic concerns and root sensitivity, but it is not a direct cause of pathologic tooth mobility. The other three options can all contribute to or be causes of tooth mobility. Bone loss can occur due to periodontal disease, while gingival inflammation can lead to the breakdown of the supporting structures around the teeth. Occlusal trauma refers to excessive forces on the teeth, which can occur due to a malocclusion or bruxism.

Question 4

Each of the following terms is used to describe the health or disease of the gingival tissues except one. Which one is the exception?

Accepted Answer

Percussion is not used to describe the health or disease of gingival tissues. The other terms (contour, size, consistency, and surface texture) are commonly used to assess the gingival tissues in periodontal health and disease.

Question 5

Which of the following structures is used for measuring the amount of gingival (soft tissue)recession?

Accepted Answer

The CEJ (cemento-enamel junction) and the free gingival margin are used to measure the amount of gingival recession. The distance between these two points indicates how much the gingiva has receded from its normal position around the neck of the tooth.

Question 6

Suppuration is also referred to as

Accepted Answer

Suppuration is the process of producing or discharging pus, which is a purulent exudate. It is not related to gingival bleeding, dental plaque, dental calculus, or dental biofilm.

Question 7

In the above questions, the attachment loss (in mm)is

Accepted Answer

The answer of In the above questions, the attachment loss...

Question 8

Before a periodontal site can be labeled as disease-active, there must be a change in clinical attachment level of

Accepted Answer

A change in clinical attachment level of 2-3 mm indicates that there has been a significant loss of attachment and therefore the site can be labeled as disease-active. Smaller changes may just be due to normal variation in measurements, while larger changes may indicate rapid progression of disease.

Question 9

Gingival (soft tissue)recession is measured according to the

Accepted Answer

Gingival recession is measured by the position of the marginal gingiva relative to the cementoenamel junction or another fixed point on the tooth.

Question 10

Which of the following terms describes mobility of a tooth under function (e.g., chewing, lateral excersions)?

Accepted Answer

Tooth fremitus refers to the palpable or visible movement of a tooth when subjected to functional forces, such as chewing or lateral excursions.

Question 11

Several factors affect the probing depths achieved when completing a periodontal chart. One of the limitations is presence of inflammation, which can result in a reading shallower than the actual probing depth.

Accepted Answer

The first statement is true, as inflammation can cause swelling and make it difficult to accurately measure the probing depth. The second statement is false, as inflammation would actually cause a deeper probing depth reading, not a shallower one.

Question 12

Which of the following terms describes the movement of teeth due to the disruption of forces that normally maintain physiologic tooth position?

Accepted Answer

Pathologic migration refers to the movement of teeth away from their normal position due to the disruption of forces that maintain physiologic tooth position. Tooth fremitus refers to the vibration or movement of a tooth when in function, tooth mobility refers to the looseness of a tooth due to damage or disease, and attachment loss refers to the destruction of the attachment apparatus that holds teeth in their sockets.

Question 13

The mesiofacial site on the maxillary left canine has a probing depth of 3 mm and 2 mm of soft tissue recession. The clinical attachment level (in mm)is

Accepted Answer

The clinical attachment level (CAL) is calculated by adding the probing depth to the amount of recession. In this case, 3 mm (probing depth) + 2 mm (recession) = 5 mm.

Question 14

Which of the following structures is used for measuring the clinical attachment level?

Accepted Answer

The clinical attachment level is the distance between the CEJ and the apical extent of the probe, so option B (CEJ and apical extent of probe) is the correct choice for measuring it. The CEJ and free gingival margin measured together determine the gingival recession, and the free gingival margin and mucogingival junction are used to determine the width of attached gingiva.

Question 15

The primary purpose of periodontal probing is to determine the extent of detachment of which of the following periodontal structures from the tooth surface?

Accepted Answer

Periodontal probing measures the depth of the gingival sulcus or periodontal pocket, which is the space between the tooth surface and the junctional epithelium. It is used to assess the attachment level of the junctional epithelium and determine the severity of periodontal disease. It does not directly assess the detachment of periodontal ligament fibers or gingival fibers. The sulcular epithelium is also measured during probing, but it is not a periodontal structure.

Question 16

Which of the following instruments is best for measuring the vertical component of bone loss in a furcation defect?

Accepted Answer

A periodontal probe is specifically designed to measure pocket depths and the vertical component of bone loss in periodontal defects, including furcation areas.

Question 17

The periodontal probe is slightly angled when measuring the probing depth on interproximal surfaces of posterior teeth because of the

Accepted Answer

The periodontal probe is slightly angled to accurately measure the depth of the sulcus or periodontal pocket, especially in the interproximal areas where the col (the valley-like depression between the buccal and lingual papillae that conforms to the proximal contact area) is present. This technique ensures a more accurate assessment of periodontal health in these areas.

Question 18

Which of the following terms describes the loss of interradicular bone?

Accepted Answer

Furcation involvement describes the loss of interradicular bone in multirooted teeth.

Question 19

Clinical attachment level is synonymous with clinical attachment loss because clinical attachment levels are determined by the measurement from the marginal gingival to the apical extent of the periodontal probe.

Accepted Answer

The answer of Clinical attachment level is synonymous with clinical...

Question 20

All of the following are etiologic factors for gingival recession except one. Which one is the exception?

Accepted Answer

Occlusal trauma is not directly considered an etiologic factor for gingival recession. While it can contribute to periodontal issues, the direct causes of gingival recession more commonly include aggressive toothbrushing, orthodontic movements, certain oral habits, and anatomic variations such as thin gingival biotypes or tooth position.

Quiz 12: Periodontal Diseases: The Assessment Phase