DH203 Periodontology M2 Quiz 1

The interdental col is a space between the tooth surface and the free gingiva. It lies directly apical to the contact area.

-The first statement is true; the second is false.

-The first statement is false; the second is true.

-Both statements are false.

-Both statements are true.

-The first statement is false; the second is true.

During mastication, the tooth is cushioned from occlusal forces by the:

-cementum.

-periodontal ligament.

-alveolar bone.

-gingiva.

-periodontal ligament.

When looking at a cross section of the periodontium, which tissue is visible adjacent to the crown of the tooth?

-Cementum

-Periodontal ligament

-Gingiva

-Alveolar bone

-Gingiva

The width of attached gingiva is narrowest in which area?

-Incisors

-Premolars

-Molars

-Canines

-Premolars

Which of the following is not a function of the periodontal ligament?

-Suspends the tooth in its socket

-Prevents food from becoming packed in the sulcus

-Builds and maintains cementum

-Houses nerve endings that provide feeling to the tooth

-Prevents food from becoming packed in the sulcus

Which lymph nodes drain most of the periodontal tissues?

-Submental

-Submandibular

-Deep cervical

-Jugulodigastric

-Submandibular

While assessing the gingival tissue, the hygienist notes that there appear to be "open spaces" apical to the contact areas of many of the patient's teeth. Which anatomical area of the gingiva is "missing," resulting in the open spaces?

-Gingival sulcus

-Attached gingiva

-Interdental col

-Interdental gingiva

-Interdental gingiva

Which of the following is not one of the layers of the alveolar process?

-Ramus

-Alveolar bone proper

-Cancellous bone

-Cortical bone

-Ramus

The periodontal ligament can remodel alveolar bone in response to pressure. The periodontal ligament contains blood vessels that provide nutrients to cementum and bone.

-The first statement is true; the second is false.

-Both statements are true.

-The first statement is false; the second is true.

-Both statements are false.

-Both statements are true.

The thin layer of bone that lines the socket that surrounds the root of the tooth is called the:

-cancellous bone.

-alveolar bone proper.

-periosteum.

-compact bone.

-alveolar bone proper.

The lattice-like bone that fills the interior portion of the alveolar process is called the:

-cortical bone.

-periosteum.

-cribriform plate.

-cancellous bone.

-cancellous bone.

A dentist extracts a third molar tooth because it is crowding the adjacent teeth and is difficult for the patient to clean. Once the tooth is extracted, if the dentist looks into the tooth socket, she will be looking at which anatomical structure?

a) Alveolar bone proper

b) Cortical bone

c) Cancellous bone

d) Spongy bone

a) Alveolar bone proper

The alveolar crest follows the contours of the cementoenamel junctions of teeth. In health, the alveolar crest covers the cementoenamel junctions of the teeth.

-The first statement is true; the second is false.

-Both statements are true.

-The first statement is false; the second is true.

-Both statements are false.

-The first statement is true; the second is false.

Which of the following is not filtered out by the lymph nodes?

-Viruses

-Fungi

-Bacteria

-Food debris

-Food debris

Blood vessels can anastomose with nerves to create a vascular system that carries oxygen to tissues and feeling to the pulp of the tooth. The major function of the vascular supply is to carry carbon dioxide and other nutrients to tissues.

-Both statements are true.

-The first statement is false; the second is true.

-Both statements are false.

-The first statement is true; the second is false.

-Both statements are false.

Which statement about the cementum/enamel relationships is false?

-When the cementum overlaps enamel, it causes a periodontal pocket.

-The arrangement that leaves a gap may cause discomfort during instrumentation.

-All of the various arrangements can be present in any one tooth.

-The relationships are collectively abbreviated as OMG.

-When the cementum overlaps enamel, it causes a periodontal pocket.

Osteoblasts are cells that initiate mineralization of bone. Osteoclasts remove mineral materials from bone.

-The first statement is false; the second is true.

-The first statement is true; the second is false.

-Both statements are false.

-Both statements are true.

-Both statements are true.

The epithelium that joins the gingiva to the tooth surface at the base of the sulcus is the:

-basal cell layer of epithelium.

-oral epithelium.

-sulcular epithelium.

-junctional epithelium.

-junctional epithelium.

Which type of cell junction allows a gingival epithelial cell to attach to the basal lamina?

-Polymosome

-Desmosome

-Hemidesmosome

-Unidesmosome

-Hemidesmosome

What is the mesh-like material that surrounds the cells and provides a framework?

-Nucleus

-Extracellular matrix

-Mast cell

-Collagen fiber bundle

-Extracellular matrix

Which principal fiber group of the periodontal ligament is located closest to the crown of a tooth?

-Alveolar crest fibers

-Horizontal fibers

-Interradicular fibers

-Apical fibers

-Alveolar crest fibers

Two neighboring epithelial cells in the gingival epithelium are attached to one another by which type of cell junction?

-Polymosome

-Desmosome

-Hemidesmosome

-Unidesmosome

-Desmosome

The mat of extracellular matrix that separates epithelial sheets from underlying connective tissue is called the:

-basal lamina.

-stratified squamous epithelium.

-collagen.

-periosteum.

-basal lamina.

What effect does keratinization have on epithelial cells?

-Makes them stronger and waterproof

-Makes them weaker and more permeable

-Makes them weaker and waterproof

-Makes them stronger and more permeable

-Makes them stronger and waterproof

In most places in the body, the interdigitation of the epithelial layer and the underlying connective tissue most closely resembles:

-a long, steep curve.

-two swirled colors.

-books on a bookshelf.

-interlocked grasped hands.

-interlocked grasped hands.

Which structure is the part of the maxilla and mandible that forms and supports the sockets of the teeth?

-Basal lamina

-Cementum

-Basement membrane

-Alveolar process

-Alveolar process

All of the following are functions of gingival fibers, except:

-they prevent plaque biofilm from entering the gingival connective

tissue.

-they connect the gingiva to the underlying cementum and alveolar bone.

-they provide the gingiva with the rigidity needed to withstand frictional forces during chewing.

-they connect adjacent teeth to one another to control tooth position.

-they prevent plaque biofilm from entering the gingival connective

tissue.

A(n) __________ locks a cell and its cytoskeleton to its neighboring cell or to the basal lamina.

-connective tissue

-alveolar process

-cell junction

-hemidesmosome

-cell junction

Which group of fibers encircles the tooth in a ring-like manner?

-Circular

-Transgingival

-Alveologingival

-Intergingival

-Circular

In health, the junctional epithelium has a wavy tissue interface with connective tissue. The junctional epithelium provides a protective barrier between plaque biofilm and connective tissue.

-Both statements are false.

-Both statements are true.

-The first statement is true; the second is false.

-The first statement is false; the second is true.

The first statement is false; the second is true.

What type of bone resorption occurs in an uneven oblique direction affecting only one tooth?

-Vertical bone loss

-Horizontal bone loss

-Infrabony defect

-Osseous crater

-Infrabony defect

Your patient has not been to the dentist in 2 years. When examining the gingival tissues, you note that the gingival margin is swollen and covers the gingival third of the tooth crowns. In addition, there is marginal redness with slight bleeding on probing. Probing depths range from 1 to 4 mm. There is no bone loss present. How would you label the state of this patient's periodontium?

-Healthy, considering it has been 2 years since the patient's last maintenance visit

-Gingivitis

-Early periodontitis because some probing depths were over 3 mm

-There is not enough information to make a determination.

-Gingivitis

All of the following are periodontal indices commonly used in periodontal studies of a population except:

-Gingival Index (GI).

-O'leary Plaque Index(OPI).

-Periodontal Index (PI).

-Periodontal Screening and Recording (PSR).

-O'leary Plaque Index(OPI).

Microscopically, there is permanent destruction of some or all of the periodontal ligament fibers and alveolar bone. What is the state of the periodontium?

-Periodontitis

-Alveolar necrosis

-Health

-Gingivitis

-Periodontitis

The pathologic deepening of a gingival sulcus by the periodontal disease process is termed:

-suprabony pocket.

-infrabony pocket.

-apical migration.

-periodontal pocket.

-periodontal pocket.

The sequence of events that occurs during the development of periodontal disease is termed:

-histology.

-coronal migration of the junctional epithelium.

-pathogenesis.

-infrabony pocket formation.

-pathogenesis.

Which type of bone loss creates infrabony pockets?

-Interdental bone loss

-Vertical bone loss

-Circumferential bone loss

-Horizontal bone loss

-Vertical bone loss

A probing depth reading of 4 mm does not necessarily mean the area has suffered bone loss. A probe depth reading of 1 to 3 mm is considered healthy.

-Both statements are false.

-The first statement is true; the second is false.

-The first statement is false; the second is true.

-Both statements are true.

-Both statements are true.

The base of a suprabony pocket is located coronal to the alveolar crest. The base of an infrabony pocket is located below the alveolar crest.

-The first statement is false; the second is true.

-The first statement is true; the second is false.

-Both statements are false.

-Both statements are true.

-Both statements are true.

Risk factors associated with periodontal disease include all of the following, except:

-Gender.

-heredity.

-traumatic injury.

-personal behaviors.

-traumatic injury.

Continued apical migration of the junctional epithelium indicates:

-a pseudopocket.

-a site of active disease.

-inflammation.

-gingivitis.

-a site of active disease.

A patient's gingival margin is at the cementoenamel junction. There is no bleeding upon probing. Microscopically, the junctional epithelium is apical to the cementoenamel junction on cementum. Which of the following is the state of his periodontium?

-Periodontitis

-Health

-Gingivitis

-Alveolar necrosis

-Periodontitis

Gingivitis always progresses into periodontal disease. Gingivitis can be observed clinically as early as 1 day after cessation of oral self-care.

-Both statements are true.

-The first statement is true; the second is false.

-The first statement is false; the second is true.

-Both statements are false.

-Both statements are false.

Microscopically, the junctional epithelium has extended epithelial ridges into the gingival connective tissue. In which of the states of the periodontium does this occur first?

-Early periodontitis

-Established periodontitis

-Gingivitis

-Health

-Gingivitis

Your patient exhibits swollen gingiva and bleeding upon probing. Microscopically, the patient's junctional epithelium is attached to the enamel coronal to the cementoenamel junction. Which of the following is the state of her periodontium?

-Gingivitis

-Periodontitis

-Health

-Periodontal disease

-Gingivitis

Your assessment findings for a patient include: red, swollen gingiva; moderate plaque biofilm; and probing depths of 2 to 3 mm. How should you classify her disease status?

-Stage III periodontitis

-Periodontal health and gingival health

-Stage IV periodontitis

-Dental biofilm-induced gingivitis

-Dental biofilm-induced gingivitis

Which of the following conditions would fall under the Other Conditions Affecting the Periodontium category in the 2017 classification?

-Decreased vestibular depth

-Peri-implant mucositis

-Dental biofilm-induced gingivitis

-Necrotizing stomatitis

-Decreased vestibular depth

Which of the following statements about the 2017 classification is TRUE?

-It includes separate chronic periodontitis and aggressive periodontitis categories.

-It includes a multidimensional staging and grading system for classifying cases of periodontitis.

-It indicates that a reduced periodontium can only be observed in a stable periodontitis patient.

-It indicates that a patient with previous loss of periodontal tissues can be categorized as having an intact periodontium.

-It includes a multidimensional staging and grading system for classifying cases of periodontitis.

The 2017 AAP/EFA Periodontal Disease Classification System identifies three stages of periodontitis. Stage III periodontitis is a more serious condition than Stage I periodontitis.

-Both statements are true.

-Both statements are false.

-The first statement is true; the second is false.

-The first statement is false; the second is true.

-The first statement is false; the second is true.

What are the three major categories of periodontal diseases and conditions?

-Dental biofilm-induced gingivitis, nondental biofilm-induced gingivitis, and mucogingival deformities and conditions

-Periodontal health and gingival health, dental biofilm-induced gingivitis, and nondental biofilm-induced gingivitis

-Gingivitis, periodontitis, and peri-implant diseases

-Systemic diseases affecting the periodontal supporting tissues, periodontal abscesses, and traumatic occlusal forces

-Periodontal health and gingival health, dental biofilm-induced gingivitis, and nondental biofilm-induced gingivitis

The stages of periodontitis are based on the:

-severity and complexity of management of the disease.

-number of teeth affected by the disease.

-rate of disease progression.

-length of affliction.

-severity and complexity of management of the disease.

Which of the folowing is a subcategory of dental biofilm-induced gingivitis on the 2017 classification?

-Drug-influenced gingival enlargement

-Genetic/developmental disorders

-Traumatic lesions

-Gingival pigmentation

-Drug-influenced gingival enlargement

Neoplasms are a subcategory of which condition in the 2017 classification?

-Peri-implantitis

-Nondental biofilm-induced gingival diseases

-Dental biofilm-induced gingival diseases

-Periodontitis

-Nondental biofilm-induced gingival diseases

Which of the following is one of the subcategories of Peri-Implant Diseases and Conditions in the 2017 classification?

-Peri-implant gingivitis

-Peri-implant periodontitis

-Peri-implant mucositis

-Peri-implant stomatitis

-Peri-implant mucositis

Under the 2017 classification, gingival excess is considered a:

-mucogingival deformity.

-prosthetic-related condition.

-periodontal abscess.

-condition caused by traumatic occlusal force.

-mucogingival deformity.

Your assessment findings for a patient include: pink gingiva, moderate plaque biofilm, and probing depths of 6 to 8 mm. How should you classify his disease status?

-Dental biofilm-induced gingivitis

-Stage I periodontitis

-Stage III periodontitis

-Periodontal health and gingival health

-Stage III periodontitis

The category Periodontal/Gingival Health appears in both the 1999 and 2017 classifications. Under the 2017 classification, any site with clinical attachment loss is deemed to be a periodontitis site regardless of the cause.

-Both statements are false.

-Both statements are true.

-The first statement is false; the second is true.

-The first statement is true; the second is false.

-Both statements are false.

There are three subcategories of Peri-Implant Diseases and Conditions in the 2017 classification. One of the subcategories of Peri-Implant Diseases and Conditions is peri-implant soft- and hard-tissue deficiencies.

-The first statement is false; the second is true.

-Both statements are false.

-The first statement is true; the second is false.

-Both statements are true.

-The first statement is false; the second is true.

The 2017 classification classifies necrotizing stomatitis as a necrotizing periodontal disease. It also recognizes necrotizing peri- implantitis as a form of necrotizing periodontal disease.

-The first statement is true; the second is false.

-Both statements are true.

-The first statement is false; the second is true.

-Both statements are false.

-The first statement is true; the second is false.

Which periodontal condition is a new addition in the 2017 classification?

-Nondental biofilm-induced gingivitis

-Peri-implantitis

-Biofilm-induced gingivitis

-Necrotizing periodontitis

-Peri-implantitis