HESI DENTAL HYGIENE EXAM 2026
UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED
A+ (BRAND NEW VISION)
Impressions for athletic mouthgaurds are acquired with removable appliances in place.
Athletes should be advised to remove these appliances when participating in sports. -
ans-The first statement is false and the second is true
Which patient is the best candidate for aesthetic bleaching? - ans-32 yr old male with
trauma related discoloration in non-vital teeth
During sealant placement, which angles in degrees, provides the greatest retention? -
ans-45
Which sequence of steps correctly prepares a tooth for sealant placement? - ans-
Clean, dry, etch, rinse, and dry
The thin layer of uncured resin which forms on the surface of a newly-cured sealant
should be removed with gauze or a cotton roll because this oxygen-inhibited layer is
harmful to the patient - ans-The statement is correct, but the reason is NOT
Each of the following can be recommended a fluoride rincse EXCEPT one. Which one
is the EXCEPTION? - ans-4 yr old female with visible heavy plaque and clinical
evidence of incipient caries
Which instruction supports proper moth protector (athletic mouthguard) home care? -
ans-clean with a toothbrush and liquid soap
The operator is cautioned to close his or her eyes when curing materials because direct
exposure to the intense blue light may damage the retina. - ans-The statement is NOT
correct but the reason is correct
Chlorhexidine gluconate (CHG) is a wifely used chemotherapeutic rinse proven effective
in reducing plaque and gingivitis. Chlorhexidine gluconate is effective against gram-
positive and gram-negative bacteria - ans-Both statements are true
Which is NOT a local functional factor that contributes to the retention of dental biofilm?
- ans-tooth anatomy
,tooth anatomy is a local predisposing factor, not a functional factor that
contributes to biofilm retention.
Locally administered antimorcrobials places in a periodontally diseased pocket have
proven to produce a positive change in the health of the periodontist. Locally
administered antimicrobials are designed to be applied in periodontal pockets 5 mm or
greater. - ans-Both statements are true
According to the Classification System of the American Academy of Periodontology,
which classification of periodontal diseases is generalized aggressive periodontitis? -
ans-III
Interdental vertical bony defects are typically visible on radiographs. The occurrence of
interdental vertical bony defects decreases with age. - ans-The first statement is true
and the second is false
Visibility of the tooth root may be an esthetic concern for a patient following periodontal
surgery. Exposed root surfaces in the oral cavity may lead to dentinal hypersensitivity
and an increased risk for developing root caries. - ans-Both statement are true.
In relation to disease transmission, which describes an improperly stored toothbrush? -
ans-Fomite
A fomite is an inanimate object capable of transmitting infectious agents. A host
is a living organism that can be infected by an infectious agent. A vector is
disease transmission from host to host. A pathogen is antinfectious agent.
Which statement indicates the dental hygienist is making a dental diagnosis - ans-"an
over-the-counter mouthguard would help relieve your TMJ discomfort"
Which correctly defines the concept of ionization? - ans-An electron is removed from
the orbital by binding energy
At which locality are x-ray photons created inside the dental X-ray tube? - ans-Anode
Increasing the exposure time on the x-ray control panel will have the same affect not he
resultant image as increasing which other radiation control? - ans-Milliamperage
Which part of the dental tube head is responsible for removing the longer wavelength x-
rays from the beam? - ans-Aluminum filter
Which has the greatest amount of radiation sensitivity? - ans-Small lymphocyte
Which is an early clinical sign of overexposure? - ans-Erthema
, Erythema, or reddening of the skin, is an early clinical sign of radiation
overexposure not commonly seen in dentistry.
Which radiology concept is characterized by directing the central ray perpendicular to
the image receptor and long axis of the tooth? - ans-Vertical angulation
Which is the recommended vertical angulation, in degrees, for exposures of bitewing
films with tabs? - ans-+10 degrees
Which technique is NOT recommended for the patient with a gag reflex? - ans-Ask
patient of their gagging reflex history
Which tooth structures is least likely to be viewed on a dental radiograph? - ans-
Cementum
On which periodical image is the mylohyoid ridge visible? - ans-MD molar
The genial tubercles are located close to which other normal anatomic structure? - ans-
Lingual foramen
Which commonly used for temporary cementation? - ans-Zinc-oxide eugenol
Which is true of a phenolic disnfectant? - ans-Leaves residue on surfaces
Where does the base of a supra bony pocket lie? - ans-Above crest of alveolar bone
Which ethical principle does informed consent uphold? - ans-Autonomy
A dental material's resilience estimates the total elastic energy it ca absorb before
deformation occurs. A dental material
s elastic strain represents its stiffness. - ans-The first statement is true and the
second is false
a 42 yr old patient presents to the dental office for periodontal care. The health history
indicates she is currently undergoing cancer treatment. Which is recorded other than in
the patient's disease status information? - ans-Patient's appearance due to cancer
A 53 yr old patient returns to the dental office 5 weeks after non-surgical periodontal
therapy for re-evaluation. Although the tissue response is generally positive, the
hygienist notes one area of localized inflammation with bleeding on probing. Which
action should the hygienist take? - ans-Explore site for residual calculus deposits or
plaque retentive factors
Which describes the dental hygienist's role in treating a person with ADHD? - ans-
Allow patient to be involved with appointment and hold suction
UPDATE QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED
A+ (BRAND NEW VISION)
Impressions for athletic mouthgaurds are acquired with removable appliances in place.
Athletes should be advised to remove these appliances when participating in sports. -
ans-The first statement is false and the second is true
Which patient is the best candidate for aesthetic bleaching? - ans-32 yr old male with
trauma related discoloration in non-vital teeth
During sealant placement, which angles in degrees, provides the greatest retention? -
ans-45
Which sequence of steps correctly prepares a tooth for sealant placement? - ans-
Clean, dry, etch, rinse, and dry
The thin layer of uncured resin which forms on the surface of a newly-cured sealant
should be removed with gauze or a cotton roll because this oxygen-inhibited layer is
harmful to the patient - ans-The statement is correct, but the reason is NOT
Each of the following can be recommended a fluoride rincse EXCEPT one. Which one
is the EXCEPTION? - ans-4 yr old female with visible heavy plaque and clinical
evidence of incipient caries
Which instruction supports proper moth protector (athletic mouthguard) home care? -
ans-clean with a toothbrush and liquid soap
The operator is cautioned to close his or her eyes when curing materials because direct
exposure to the intense blue light may damage the retina. - ans-The statement is NOT
correct but the reason is correct
Chlorhexidine gluconate (CHG) is a wifely used chemotherapeutic rinse proven effective
in reducing plaque and gingivitis. Chlorhexidine gluconate is effective against gram-
positive and gram-negative bacteria - ans-Both statements are true
Which is NOT a local functional factor that contributes to the retention of dental biofilm?
- ans-tooth anatomy
,tooth anatomy is a local predisposing factor, not a functional factor that
contributes to biofilm retention.
Locally administered antimorcrobials places in a periodontally diseased pocket have
proven to produce a positive change in the health of the periodontist. Locally
administered antimicrobials are designed to be applied in periodontal pockets 5 mm or
greater. - ans-Both statements are true
According to the Classification System of the American Academy of Periodontology,
which classification of periodontal diseases is generalized aggressive periodontitis? -
ans-III
Interdental vertical bony defects are typically visible on radiographs. The occurrence of
interdental vertical bony defects decreases with age. - ans-The first statement is true
and the second is false
Visibility of the tooth root may be an esthetic concern for a patient following periodontal
surgery. Exposed root surfaces in the oral cavity may lead to dentinal hypersensitivity
and an increased risk for developing root caries. - ans-Both statement are true.
In relation to disease transmission, which describes an improperly stored toothbrush? -
ans-Fomite
A fomite is an inanimate object capable of transmitting infectious agents. A host
is a living organism that can be infected by an infectious agent. A vector is
disease transmission from host to host. A pathogen is antinfectious agent.
Which statement indicates the dental hygienist is making a dental diagnosis - ans-"an
over-the-counter mouthguard would help relieve your TMJ discomfort"
Which correctly defines the concept of ionization? - ans-An electron is removed from
the orbital by binding energy
At which locality are x-ray photons created inside the dental X-ray tube? - ans-Anode
Increasing the exposure time on the x-ray control panel will have the same affect not he
resultant image as increasing which other radiation control? - ans-Milliamperage
Which part of the dental tube head is responsible for removing the longer wavelength x-
rays from the beam? - ans-Aluminum filter
Which has the greatest amount of radiation sensitivity? - ans-Small lymphocyte
Which is an early clinical sign of overexposure? - ans-Erthema
, Erythema, or reddening of the skin, is an early clinical sign of radiation
overexposure not commonly seen in dentistry.
Which radiology concept is characterized by directing the central ray perpendicular to
the image receptor and long axis of the tooth? - ans-Vertical angulation
Which is the recommended vertical angulation, in degrees, for exposures of bitewing
films with tabs? - ans-+10 degrees
Which technique is NOT recommended for the patient with a gag reflex? - ans-Ask
patient of their gagging reflex history
Which tooth structures is least likely to be viewed on a dental radiograph? - ans-
Cementum
On which periodical image is the mylohyoid ridge visible? - ans-MD molar
The genial tubercles are located close to which other normal anatomic structure? - ans-
Lingual foramen
Which commonly used for temporary cementation? - ans-Zinc-oxide eugenol
Which is true of a phenolic disnfectant? - ans-Leaves residue on surfaces
Where does the base of a supra bony pocket lie? - ans-Above crest of alveolar bone
Which ethical principle does informed consent uphold? - ans-Autonomy
A dental material's resilience estimates the total elastic energy it ca absorb before
deformation occurs. A dental material
s elastic strain represents its stiffness. - ans-The first statement is true and the
second is false
a 42 yr old patient presents to the dental office for periodontal care. The health history
indicates she is currently undergoing cancer treatment. Which is recorded other than in
the patient's disease status information? - ans-Patient's appearance due to cancer
A 53 yr old patient returns to the dental office 5 weeks after non-surgical periodontal
therapy for re-evaluation. Although the tissue response is generally positive, the
hygienist notes one area of localized inflammation with bleeding on probing. Which
action should the hygienist take? - ans-Explore site for residual calculus deposits or
plaque retentive factors
Which describes the dental hygienist's role in treating a person with ADHD? - ans-
Allow patient to be involved with appointment and hold suction
