The Role of the Periodontium in Relation to Dental Caries

Question 1

Consists of both soft and hard dental tissues that support the tooth in its relationship to the alveolar process

Answer 1

Periodontium

Question 2

Appositional growth of dentin in root area

Answer 2

Root formation

Question 3

The HERS disintegrate to produce the epithelial rests of Malassez

Answer 3

True

Question 4

Residual cells of HERS that did not completely disappear

Answer 4

Epithelial Rests of Malassez

Question 5

What is the cementum matrix?

Answer 5

Cementoid

Question 6

Avascular, multiunit, mineralized connective tissue derived from the mesoderm

Answer 6

Cementum

Question 7

Which CEJ interface can lead to the difficulty of discerning the CEJ from calcular deposits?

Answer 7

Overlap

Question 8

Which CEJ interface is normal and has no problems?

Answer 8

Meet

Question 9

Which CEJ interface exposes the dentin?

Answer 9

Gap

Question 10

An acellular cementum is the first layer deposited on top of the dentin, and formed at a faster rate.

Answer 10

False (slower rate)

Question 11

The cellular cementum can widen overtime and layers can be added.

Answer 11

True

Question 12

Appears in radiographs as the periodontal ligament space between the lamina dura and the cementum

Answer 12

Periodontal ligaments

Question 13

Pain, touch, pressure, and temperature sensations in PDL

Answer 13

Proprioception

Question 14

Most common cells in the PDL

Answer 14

Fibroblasts

Question 15

Regulate collagen-sensory and collagen remodeling

Answer 15

Mechanosensing

Question 16

Inserts mesiodistally or interdentally into the cervical cementum of neighboring teeth and resists rotational forces and hold the teeth in interproximal contact

Answer 16

Interdental ligament

Question 17

The interdental ligament is coronal to the alveolar crest and has no bony attachment

Answer 17

True

Question 18

Ectomesenchyme of the dental sac mineralize

Answer 18

Alveolar process development

Question 19

Hard, mineralized tissue with the components of other bone tissue, and more easily remodeled than the cementum

Answer 19

Alveolar process

Question 20

Formative cells of the enamel

Answer 20

Ameloblasts

Question 21

Embryoloic background of the alveolar process and cementum

Answer 21

Dental sac

Question 22

Masticatory mucosa that is bound to the teeth and covers the alveolar processes

Answer 22

Gingiva

Question 23

Unattached and often characterized by the sulcus depth

Answer 23

Free gingiva

Question 24

Firmly attached to the periosteum of the alveolar process

Answer 24

Attached gingiva

Question 25

Where is the widest band of the attached gingiva?

Answer 25

Facial aspect of central and lateral incisors

Question 26

Where is the narrowest band of the attached gingiva?

Answer 26

Facial area of canines and first premolars

Question 27

Formed by the sulcular epithelium and junctional epithelium.

Answer 27

Dentogingival junctional tissue

Question 28

Stands away from the tooth and creates the gingival sulcus (filled with gingival crevicular fluid)

Answer 28

Sulcular epithelium

Question 29

Contains blood and immunologic cells

Answer 29

Gingival Crevicular Fluid (GCF)

Question 30

Attached to the tooth surface by epithelial attachment and forms the floor of the gingival sulcus.

Answer 30

Junctional epithelium

Question 31

Located in the lamina propria of the marginal gingiva and support only the gingival tissue in order to maintain gingival integrity

Answer 31

Gingival fiber group

Question 32

Ligament that encircles tooth

Answer 32

Circulara ligament

Question 33

Ligament that is the most extensive

Answer 33

Dentogingival ligament

Question 34

Helps to attach the gingiva to the alveolar bone

Answer 34

Alveologingival ligament

Question 35

Anchors the tooth to the bone and protects the deeper PDL

Answer 35

Dentoperiosteal ligament

Question 36

Immune-inflammatory infection of the tooth-supporting structures; major cause of tooth loss among adults

Answer 36

Periodontal disease

Question 37

Gingival inflammation

Answer 37

Gingivitis

Question 38

Deep probing depths, inflammation, subgingival calculus and plaque, alveolar bone loss

Answer 38

Periodontitis

Question 39

Control of periodontitis in severe cases

Answer 39

Antibiotic therapy Periodontal surgery

Question 40

Fibrous overgrowth of gingival tissues due to intake of certain drugs and poor homecare

Answer 40

Gingival hyperplasia

Question 41

Recession due to tight frenal attachment

Answer 41

Gingival recession

Question 42

Gingival biotype that often shows transparency within gingival sulcus when a probe is inserted, often associated with tapered/triangular anatomic crowns, and responds to gingival inflammation with gingival recession

Answer 42

Thin and Scalloped biotype

Question 43

Gingival biotype that often shows more pronounced 'orange peel' surface of the attached gingiva, often associated with square anatomic crowns with broad interproximal contact areas and responds to gingival inflammation with deep pocket depth formation

Answer 43

Thick and Flat biotype

Question 44

Excess restoration from margin

Answer 44

Overhang

Question 45

Fragment of cementum that detaches from the tooth, usually after trauma, causing isolated bone loss (vertical bone defects)

Answer 45

Cemental tears

Question 46

Developmental anomaly in which an infolding of the IEE and HERS creates a groove from the cingulum of the maxillary incisors apically onto the root

Answer 46

Palatal groove

Question 47

Genetically driven structure, combined vertical dimension of the junctional epithelium and the supra-alveolar connective tissue. Acts as a seal around the cervical portion of the tooth

Answer 47

Biologic width

Question 48

Does not involve hard tissue but rather just gingival excess removal to expose the clinical crown

Answer 48

Gingivectomy

Question 49

Control of etiology to prevent rebound

Answer 49

Gingival overgrowth

Question 50

Commonly performed on the distal surface of molars to facilitate hygiene

Answer 50

Distal wedge

Question 51

Needs 3 mm of sound tooth structure from the margin of the final cavity preparation (not the caries lesion)

Answer 51

Subgingival caries/Access for proper restoration

Question 52

Esthetics must be carefully considered during treatment planning. Crown lengthening is almost always necessary, but it might compromise esthetics.

Answer 52

Tooth fracture

Question 53

Significant amount of anatomic crown is covered by gingiva due to failure of proper apical migration of the soft tissue that covers the crown

Answer 53

Altered passive eruption

Question 54

Effects of restorative treatment on the periodontium

Answer 54

Biologic width violation Dental materials Provisional restorations and restorative margins Retraction cord and impressions