Dental Hygiene Final Part 1
Dental Hygiene Final Exam Part 1
Test your knowledge on dental hygiene with our comprehensive quiz designed for students and professionals alike. This quiz covers essential topics related to periodontal health, biofilm formation, and calculus management.
Key features of the quiz include:
- 42 challenging questions
- Multiple choice format
- Immediate feedback on your answers
A sulcus or a pocket has a gingival side and a tooth side. The gingival side is:
Sulcular epithelium
Smooth muscle
Striated epithelium.
Stressed epithelium.
A) A periodontal pocket is a pocket formed by gingival enlargement without apical migration of the junctional epithelium. B) A gingival pocket is a pocket formed as a result of disease or degeneration that caused the junctional epithelium to migrate along the cementum
Statement A is true and statement B is false
Statement A is false and statement B is true.
Both statements are true.
Both statements are false.
The gingival sulcus is the:
Shallow linear groove that demarcates the free from the attached gingiva.
Cufflike band of stratified squamous epithelium
Crevice between the free gingiva and the tooth
Narrow fold of mucous membrane that passes from a more fixed to a movable part
The shepherd's hook explorer is commonly used for examining:
Proximal surfaces
Incisal edges
Concave areas
Pits and fissures and smooth surfaces.
The incidence of gingivitis is greatest in what area?
Posterior palatal tissues
Anterior facial tissues
Gingival margin
Interdental tissues
The technique used with the periodontal probe is:
Running stroke
Walking stroke
Jogging stroke
Sliding stroke
All of the following are factors that affect probe determinations except:
Accuracy and consistency
Patient discomfort and trauma to the tissues must be minimal
Severity and extent of periodontal disease
Patient age
When biofilm is left undisturbed on the tooth surface, gingivitis develops within:
1 day
2 days
7 hours
10 to 21 days
Biofilm occurs least frequently:
On proximal surfaces
At the gingival margin
Around the gingival third of the tooth
On anterior surfaces.
Gram-positive cocci enter the bacterial biofilm in how may hours?
Within 24 hours
24 to 48 hours
48 to 72 hours
None of these are correct.
Subgingival biofilm develops as a result of downgrowth of supragingival gingival biofilm.
True
False
Critical pH for enamel demineralization averages:
4.5 to 5.5
6.2 to 7.0
6.0 to 6.4
None of these are correct
Your patient John informs you that he only drinks one can of soda all day because he sips it slowly throughout the day. During OHI you tell him:
"Large amounts of sucrose eaten at mealtime is more cariogenic."
"Small amounts of sucrose eaten at frequent intervals is less cariogenic."
"Small amounts of sucrose eaten at frequent intervals is more cariogenic."
None of these are correct.
All of the following are steps that promote oral cleanliness and prevent deposits on the teeth, except:
Frequent snacking
Flossing
Chewing sugar-free gum
Toothbrushing
Which of the following statements is true of dental calculus?
Dental calculus can form on dentures
Dental calculus can only form on the crown or root of the tooth.
Dental calculus cannot form on bridges.
Dental calculus cannot form on occlusal surfaces of the tooth.
The steps for calculus formation , in chronological order, are:
Biofilm formation, mineralization, pellicle formation.
Mineralization, pellicle formation, biofilm formation.
Pellicle formation, biofilm formation, mineralization
Mineralization, biofilm formation, pellicle formation.
Which one of the following is the most highly mineralized tissue in the body?
Cementum
Bone
Dentin
Enamel
How early can mineralization of both supra- and subgingival calculus begin?
It can begin immediately after deep scaling and root planning
It can begin in 12 to 24 hours
It can begin in 24 to 48 hours
It will not begin if an oral irrigation system is used
Calculus-control ("tartar-control") dentifrices contain:
A calcium
A pyrophosphate or zinc system
Sodium fluoride
A stannous fluoride system
Your patient, Kathy, is in for her maintenance appointment; she recently purchased some tartar-control toothpaste, and it seems to be working for her. She asks you, "How does it prevent tartar from forming?" You respond:
"It prevents the buildup of saliva."
"It prevents pellicle formation."
"It contains fluoride, which helps to prevent decalcification."
"It contains pyrophosphate."
A) Heavy calculus formers have higher salivary levels of calcium and phosphorous than do light calculus formers. B) Light calculus formers have higher levels of pyrophosphate.
Statement A is true and statement B is false.
Statement A is false and statement B is true
Both statements are true
Both statements are false
Calculus occurs most frequently on:
Lingual surfaces of maxillary molars
Facial surfaces of maxillary molars
Lingual surfaces of maxillary incisors
None of these are correct.
White spots on a single tooth due to ameloblastic disturbance are called:
Local enamel hypoplasia
Dentinogenesis imperfecta
Decalcification
Dental fluorosis
The betel leaf is commonly used by people of all ages in Eastern countries. Which of the following is true of betel leaf?
The betel leaf causes decalcification
The betel leaf has a caries-inhibiting effect.
The betel leaf causes a yellow stain on the tooth.
The betel leaf causes a green stain on the tooth.
Which of the following statements is true of pulpless teeth?
All pulpless teeth discolor.
Not all pulpless teeth discolor.
Pulpless teeth can cause frequent pain.
None of these are correct.
The function of cementum is to:
Seal the tubules of the root dentin and provide attachment for the periodontal fiber groups
Provide attachment for the periodontal fiber groups only
Seal the tubules of the enamel
Provide attachment for the dentin.
Which of the following acts as a barrier to keep infection out?
Sulcus
Connective tissue
Junctional epithelium
Cementoenamel junction
Which of the following should not be designated as clinically normal or clinically healthy?
Shade of pale or coral pink varied by complexion and pigmentation
Knife-edged gingival margin that adapts closely around the tooth
Smooth, soft, and maximal sulcus depth with bleeding when probed
Stippling, firmness, and minimal sulcus depth with no bleeding when probed
Signs of health in the gingiva include all of the following, except:
Pale pink color
Fit snugly around the tooth
Knife-edged margin
Firm when palpated
Bleeding on probing
A) Floss cleft is created by using the floss correctly. B) Stillman's cleft is a localized recession that may be in a V-shape that extends several millimeters toward the mucogingival junction.
True, False
False, True
True, True
False, False
A) Gingivitis occurs frequently in children, but is usually reversible without having permanent damage. B) Periodontal disease cannot occur in children.
True, False
False, True
True, True
False, False
A) A probe is a slender instrument with a rough, pointed tip designed for examination of the depth and topography of a gingival sulcus or periodontal pocket. B) A probe has three parts: the handle, the angled shank, and the working end
Both statements are true
Statement A is false and statement B is true
Statement A is true and statement B is false.
Both statements are false
The shepherd's hook explorer is commonly used for examining:
Proximal surfaces
Incisal edges
Concave areas
Pits and fissures and smooth surfaces.
Tactile examination for subgingival calculus can be detected by using which of the following tool(s)?
Explorer
Probe
Radiographs
Explorer and probe
After all external material has been removed from tooth surfaces, the acquired pellicle is fully formed within:
5 minutes
60 minutes
30 to 90 minutes
90 to 180 minutes
The acquired pellicle forms on:
Restorations
Exposed tooth surfaces
Dental calculus
Dental crowns
All of these are correct
Which of the following is not true of dental caries?
Caries is an infectious disease.
Caries is a transmissible disease
Caries is an eradicated disease
Caries is a preventable disease
Which of the following is a moderate risk factor for dental caries?
No or few medications
Multiple restorations
Dentally aware
Uses xylitol gum between meals
Which of the following bacteria are the infectious organisms that colonize the teeth, help to form dental biofilm, and are responsible for the dental caries process?
Streptococcus mutans
Bacteroides forsythus
Prevotella intermedia
Eubacterium nodatum
Saliva has many protective functions in the oral cavity. Which of the following is the most important protective property of saliva in the caries process?
Buffering of acids
Aid in digestion
Aid in speech
Carrier of antibodies
Which of the following is a depressed lesion?
Papule
Ulcer
Nodule
Vesicle
Plaque
The determination of the classification of occlusion is based on the principles of:
Occlusion
Radiographs
Edward Angle.
G. V. Black
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