S5 Flashcards by rob luna

Which of the following cranial nerves may cause cardiac arrhythmia during dental procedures?

a. Facial nerve
b. Trigeminal nerve
c. Oculomotor nerve
d. Abducens nerve

b. Trigeminal nerve

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Initial management for patient with syncope

a. 100% oxygen
b. Position the patient with the feet higher than his/her head
c. Allow the patient to sit upright
d. Bring the patient to hospital

b. Position the patient with the feet higher than his/her head

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Filtration process is important when taking radiographs because it

a. Increases the radiation receive by the patient
b. Removes short wavelength xrays
c. Removes long wavelength xrays
d. Increases scatter of xrays

c. Removes long wavelength xrays

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Prothrombin time

a. 5 to 9 seconds
b. 10 to 20 seconds
c. 21 to 25 seconds
d. 26 to 30 seconds

b. 10 to 20 seconds

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Handpieces that are used in placing implants have what characteristics?

a. High speed/high torque
b. Low speed/ low torque
c. High speed/low torque
d. Low speed/high torque

b. Low speed/ low torque

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The minimum distance between 2 implants is 3mm, while the minimum distance between an implant and a tooth is 1.5mm

a. First statement is true. Second statement is false
b. First statement is false. Second statement is true
c. Both statements are true
d. Both statements are false

c. Both statements are true

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Watson’s Water hammer pulse or also known as collapsing pulse is commonly associated with

a. Endocarditis
b. Rheumatic fever
c. Thyrotoxicosis
d. Pulmonary embolism

c. Thyrotoxicosis

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Which of the following is true with regards to a patient with well-controlled diabetes and a normal patient?

a. Patients with well-controlled diabetes are more susceptible to infections than patients without diabetes.
b. Patients with well-controlled diabetes and without diabetes have equal susceptibility to infections.
c. Patients with well-controlled diabetes are less susceptible to infections than patients without diabetes.

a. Patients with well-controlled diabetes are more susceptible to infections than patients without diabetes.

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It is advisable not to remove any bone on this region during extraction of an impacted teeth.

a. Buccal
b. Occlusal
c. Distal
d. Lingual

d. Lingual

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A type of benign tumor arising from bone which has three stages. Stage 1 presents radiolucency found at the periapex, stage 2 presents mixture of radiolucency and radiopacity at the periapex and stage 3 presents radiopacity surrounded by a radiolucency at the periapex.

a. Cementoblastoma
b. Periapical cemental dysplasia
c. Peripheral giant cell granuloma
d. Focal sclerosing osteomyelitis

b. Periapical cemental dysplasia

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The cause of cone cut in a radiographic image

a. Too much vertical angulation
b. Too little vertical angulation
c. The film was placed backwards in the mouth
d. Beam was not aimed at the center of the film

d. Beam was not aimed at the center of the film

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Which of the following statements regarding the TMJ is correct?

a. Middle part of the TMJ is highly vascular
b. Disc attaches to capsule anteriorly
c. Articulating surface is made up of hyaline cartilage
d. Articulating surface is made up of fibrocartilage

d. Articulating surface is made up of fibrocartilage

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Type of healing process seen in the extraction socket of a tooth

a. Primary
b. Secondary
c. Tertiary

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Success rate of implants after 10 years

a. 50%
b. 60%
c. 70%
d. 80%

d. 80%

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A type of lesion presenting loculations of white fluid that is due to activity of PMN cells

a. Pustules
b. Papule
c. Nodule
d. Macule

a. Pustules

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Peripheral giant cell granuloma arises from which of the following tissues?

a. Periosteum
b. PDL
c. Gingiva
d. Buccal mucosa

b. PDL

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During removal of impacted, the dentist used air-driven high-speed handpiece. Which of the following is a common complication of this instrument?

a. Infection
b. Post-operative pain
c. Dry Socket
d. Trapped air

d. Trapped air

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Complete loss of epidermis and some portions of dermis and subcutenous fat.

a. Crust
b. Scales
c. Eschar
d. Ulcers

d. Ulcers

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According to the guideline of BLS, in order to open the airway, this is the technique proposed.

a. Lip separation
b. Neck pull
c. Chin lift
d. Jaw thrust

c. Chin lift

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Light spots on the film is due to

a. Insufficient fixing or rinsing
b. Low level of solution
c. Contact of film in the fixer prior to processing
d. Outdated film

c. Contact of film in the fixer prior to processing

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A type of implant screwed or pressed into a hole cut into the maxilla or mandible

a. Endosseous implant
b. Subperiosteal implant
c. Transosseous implant
d. Supraperiosteal

a. Endosseous implant

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Which of the following presents a honeycomb or soap-bubble radiolucencies in the radiograph?

a. Nasoalveolar cyst
b. Osteitis Deformans
c. Aneurysmal bone cyst
d. Hemangioma of skin

c. Aneurysmal bone cyst

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Most important sign of implant failure?

a. Radiolucency in radiograph
b. Pain
c. Inflammation
d. Mobility

d. Mobility

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Foreshortening of the radiographic image is due to

a. Decrease vertical angulation
b. Increase vertical angulation
c. Decrease horizontal angulation
d. Increase horizontal angulation

b. Increase vertical angulation

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The best treatment for stomatitis nicotina is a. Stop smoking b. Take NSAIDs c. Cold compress d. Antibiotic therapy

a. Stop smoking

A patient suffering from a liver disease may possibly have this complication during extraction a. Loss of blood clot b. Dry socket c. Bleeding d. Infection

c. Bleeding

All of the following describes a peripheral giant cell granuloma, except: a. They are red-blue masses found in the gingiva b. They are commonly found in females than in males c. They commonly occur between the first molars and incisors d. They arise from the jaw bones

d. They arise from the jaw bones

It is a constant feature associated with radicular cyst a. Missing tooth b. Non-vital tooth c. Impacted tooth d. Odontoma

b. Non-vital tooth

Etiology of mucus extravasation phenomenon is considered to be related to: a. Obstruction of salivary flow b. Presence of sialoliths c. Mechanical trauma to the duct d. All of the above

c. Mechanical trauma to the duct

It is the degree of density difference between two areas on a radiograph. a. Contrast b. Density c. Magnification d. Sharpness

a. Contrast

Percentage of formalin in biopsy tube a. 5% b. 10% c. 15% d. 20%

b. 10%

Which of the following will happen if you extract a tooth of a patient (without medical condition) presenting an acute type of infection? a. It would cause the spread of the infection to adjacent structures b. Facilitates drainage and good blood supply to the site c. It will create a new type of acute infection at the site of injury

b. Facilitates drainage and good blood supply to the site

A common instrument used for bone removal a. Rongeur b. Russian c. College d. Adamson

a. Rongeur

Which of the following will have greatly affect the success of a dental implant? a. Smoking habit b. Age c. History of heart attack d. Alcohol

a. Smoking habit

During surgical procedures, rotary instruments can increase the temperature of hard tissues. What is the minimum critical temperature that may cause bone necrosis? a. 31 to 35 degrees Celsius b. 36 to 40 degrees Celsius c. 41 to 45 degrees Celsius d. 46 to 50 degrees Celsius

d. 46 to 50 degrees Celsius

Focal spot size of dental xrays have a size of a. 0.1 to 0.5 mm squared b. 0. 6 to 1.0 mm squared c. 1.1 to 1.5 mm squared d. 1.6 to 2.0 mm squared

b. 0. 6 to 1.0 mm squared

Patient is under chronic steroidal therapy that needs to undergo odontectomy of an impacted #38. Laboratory test shows that the patient has adrenal insufficiency. Which is the proper pre-operative management for the patient? a. Decrease the dose of the steroid b. Maintain the dose of the steroid c. Increase the dose of the steroid d. Stop the steroidal therapy

c. Increase the dose of the steroid

Radiographically, it presents a pear-shaped radiolucency between maxillary lateral incisor and canine a. Dentigerous cyst b. Nasopalatine duct cyst c. Radicular cyst d. Globullomaxillary cyst

d. Globullomaxillary cyst

Plasma expander contains all of the following, except: a. Complement factors b. Clotting factors c. Opsonin d. Platelets

d. Platelets

Part of the x-ray machine that converts bombarding electrons into x-ray photons. a. Collimator b. Cathode c. Molybdenum cup d. Focal spot

d. Focal spot

Statement 1: reducing the size of the xray beam to the size of the film improves the radiographic image quality. Statement 2: reducing the size of the xray beam to the size of the film reduces unnecessary patient exposure. a. Both are true b. Both are false c. First statement is true, second statement is false d. First statement is false, second statement is true

c. First statement is true, second statement is false

Type of healing that occurs when a defect is closed by a filling process involving granulation tissues a. Primary b. Secondary c. Tertiary

b. Secondary

The largest contributor to the radiation exposure of people today is the natural radiation. It contributes around _____ of radiation exposure. a. 62% b. 75% c. 83% d. 92%

c. 83%

The palatal torus must be removed ______ a. If it will not interfere with the denture you are constructing b. If the patient is cancer phobic c. If it is small d. All the time

b. If the patient is cancer phobic

The following are pseudocysts, except a. Aneurysmal bone cyst b. Traumatic bone cyst c. Latent bone cyst d. None of the above

d. None of the above

Symptoms are objective. Pain felt by the patient is an example of a symptom a. Both statements are true b. Both statements are false c. First statement is true; second statement is false d. First statement is false; second statement is true

d. First statement is false; second statement is true

A patient presenting adrenal insufficiency will have a low tolerance to which of the following? a. Pain b. Anxiety c. Stress

c. Stress

Which of the following physics law that applies to geometric dilution of dental xrays. a. Inverse-square law b. Law of thermodynamics c. Newton’s 3rd law of motion d. Theory of relativity

a. Inverse-square law

_________ is the positive electrode a. Anode b. Cathode

a. Anode

It is the minimum temperature generally considered to have febrile fever a. 37 C and above b. 37.5 C and above c. 37.8 C and above d. 38 C and above

c. 37.8 C and above

If the tissue is planned to be retained in the oral cavity, this instrument should not be used due to its crushing ability. a. Allis tissue forceps b. Stillies forceps c. College forceps d. Tissue holding forceps

a. Allis tissue forceps

The quantity of x-rays produced is determined by which of the following? a. Miliamperage b. Kilovoltage c. Exposure time

a. Miliamperage

Normal bleeding time a. 2-4 seconds b. 30 seconds c. 2 to 4 minutes d. 5 to 10 minutes

c. 2 to 4 minutes

A type of imaging where a patient is given radioactive sugar substance. The injected material is absorbed by abnormal cells resulting to an image in the scan allowing identification of the pathogenic cells in the body. a. CT scan b. PET scan c. MRI d. CAT scan

d. CAT scan

All of the following are the most important factors that determine the success of implants, except: a. Primary stability b. Bone volume c. Proximity to anatomic structures d. Material of choice

d. Material of choice

You should be careful when extracting this tooth since its root has a great chance that it is within the maxillary sinus. a. Canine b. First premolar c. Primary first molar d. First molar

d. First molar

For all-implant-supported overdentures in the maxilla, 6 implants are recommended, while 4 on the mandible. a. First statement is true. Second statement is false b. First statement is false. Second statement is true c. Both statements are true d. Both statements are false

d. Both statements are false

When doing an extraction of the maxillary 3rd molar, tuberosity fractures but still attached to the periosteum. Treatment of choice is? a. Removal of bone because it will lead to necrosis b. Reposition the bone and stabilize with sutures c. Remove the bone then check for other bone debris d. None of the above

b. Reposition the bone and stabilize with sutures

Which of the following is true about collimators? a. Circular collimators produce a cone beam that has a size of 2.75 inches or 7cm b. Rectangular collimators produce a cone beam that has a size of 2.75 inches or 7cm c. Circular collimators produce a cone beam that has a size slightly larger than 2 intraoral films

a. Circular collimators produce a cone beam that has a size of 2.75 inches or 7cm

HIV infection is permanent because a. HIV infects the T4-lymphocytes b. HIV proviral DNA integrates into the human host cell c. Human immune system doesn’t respond to the infection d. None of the above

a. HIV infects the T4-lymphocytes

Which of the following is true about a pregnant woman and x-rays? a. Never take x-rays if a patient is pregnant b. X-rays can be done only during the second or third trimester c. Use aprons that are triple-leaded type d. You can take x-rays in pregnant women in any trimester as long as it is needed.

d. You can take x-rays in pregnant women in any trimester as long as it is needed.

This is a type of implant procedure that requires a secondary surgical procedure to uncover the fixture a. Submerged implant placement b. Nonsubmerged implant placement c. Bony implant placement d. Subosseous implant placement

a. Submerged implant placement

A tooth that is tender on percussion is indicative of a. Pulpal necrosis b. Periodontal inflammation c. Condensing osteitis d. Pulp is vital

b. Periodontal inflammation

Normal hematocrit count a. 22% in males and 17% in females b. 35 % in males and 30% in females c. 47% in males and 42% in females d. 55% in males and 50% in females

c. 47% in males and 42% in females

Which of the following is the primary mechanism of action of bone grafting materials? a. They replace the bone tissue b. They stimulate osteoclast to transform to osteoblast for new bone deposition c. They serve as scaffold for bone formation d. All of the above

c. They serve as scaffold for bone formation

When creating flaps, it is a good idea to place the vertical releasing incisions over bony prominent areas. This will ensure the wound healing to be tension free. a. The first statement is true, the second is false b. The first statement is false, the second is true c. Both statements are true d. Both statements are false

d. Both statements are false

A patient under steroidal therapy for 10 years needs to have extraction of tooth 11. Tests show that he has no adrenal insufficiency. Which is the correct pre-operative procedure to be done? a. Stop drug for 7 days prior to treatment b. Stop drugs for 72 hours prior to treatment c. Give anti-anxiety agent d. Increase the dose

c. Give anti-anxiety agent

When fabricating implant-supported and soft-tissue supported overdentures in the maxilla and mandible 2 to 4 implants are recommended. Ideally, four in the maxilla. a. First statement is true. Second statement is false b. First statement is false. Second statement is true c. Both statements are true d. Both statements are false

c. Both statements are true

Which of the following doesn’t emit ionizing radiation? a. Positron Emission Tomography scan b. Magnetic resonance Imaging c. Cone Beam d. Sialography

b. Magnetic resonance Imaging

It is the complete removal of a cystic lesion without rupturing its epithelial walls a. Curettage b. Enucleation c. Marsupialization d. Resection

b. Enucleation

Ohm’s law a. V= I x R b. V= I x Gy c. I = V x R d. R = V x I

a. V= I x R

Sialoadenitis refers to a. Inflammation of duct b. Inflammation of salivary gland c. Inflammation of salivary duct d. Inflammation of the tonsil

b. Inflammation of salivary gland

A patient arrived in your clinic with bruises in the faces due to a brawl. You suspect zygomatic arch fracture, which of the following radiograph is best to use for diagnosis? a. Waters view b. Reverse towne’s c. Lateral cephalometric d. Submentovertex

d. Submentovertex

Lightning or crackled structures in the film is due to a. Excessive exposure b. Fingernails c. Static electricity d. Premature exposure

c. Static electricity

Normal value of hemoglobin A1c (hba1c) a. <5 b. <6 c. <7 d. <8

a. <5

Patient is in shock with gross comminuted fracture, immediate treatment would be administration of the following, except: a. Lactated Ringer’s solution b. 0.9% normal saline c. Plasma expander d. Whole blood

c. Plasma expander

Post extraction bleeding in a patient with leukemia is due to a. Increase levels of WBC b. Platelet deficiency c. Clotting factor disorder d. Calcium deficiency

b. Platelet deficiency

Which of the following is correctly related to CPR? a. For 2 minutes you should complete 5 cycles of 15 compressions and 2 breaths b. For 2 minutes you should complete 2 cycles of 15 compressions and 2 breaths c. For 2 minutes you should complete 5 cycles of 30 compressions and 2 breaths d. For 2 minutes you should complete 2 cycles of 30 compressions and 2 breaths

c. For 2 minutes you should complete 5 cycles of 30 compressions and 2 breaths

During removal of an impacted teeth that is completely covered by bone, the reduction of bone is a. Up to the cervical line b. Above the cervical line c. Below the cervical line

a. Up to the cervical line

The Red line in Winter’s WAR lines refers to a. The occlusal plane b. The crest of the interdental septum c. The amount of bone that will have to be removed before elevation

c. The amount of bone that will have to be removed before elevation

A disease associated with destruction of cellular junctions between the epidermis and the basement membrane. a. Verruca vulgaris b. Pemphigus vulgaris c. Pemphigoid d. Morsicatio buccarum

c. Pemphigoid

A leukoplakia found in the oral cavity predisposes a patient to a. Syphilis b. Leukoedema c. Lichen planus d. Malignancy

d. Malignancy

A 45-year-old patient presenting a non-painful 8mm x 9mm lesion on the posterolateral corner of the tongue. She notices it a year ago. No past medical history and takes no medication. What is the initial treatment? a. Incisional biopsy b. Excisional biopsy c. Observe d. Resection

b. Excisional biopsy

Serum sickness and systemic lupus erythematosus is classified as what type of hypersensitivity reaction? a. Type 1 b. Type 2 c. Type 3 d. Type 4

c. Type 3

Initial manifestation of kidney stones a. Oliguria b. Polyuria c. Hypertension d. Jaundice

a. Oliguria

The generally considered safe amount of radiation dose that can be received by a person throughout his/her lifetime. a. 50 mSv b. 100 mSv c. 10 mSv d. 250 mSv

b. 100 mSv

Which of the following is a synthetic type of bone graft? a. Allograft b. Alloplastic c. Xenograft d. Autograft

b. Alloplastic

Cause of yellow marks in the film a. Underfixed b. Overdeveloped c. Old film d. Insufficient washing

d. Insufficient washing

Complication related to use of air rotors at 30,000 rpm during removal of impacted molars a. Tissue necrosis b. Tissue laceration c. Necrosis of bone d. Emphysema

d. Emphysema

The minimum required distance from the apex of a mandibular posterior implant to the superior border of inferior alveolar canal is a. 1mm b. 2mm c. 3mm d. 4mm

b. 2mm

All of the following are manifestations of alveolar osteitis, except one: a. Fetid odor b. Bilateral swelling c. Bad taste d. Severe pain

b. Bilateral swelling

The following are common cytologic characteristics of malignant cells, except: a. Anaplasia b. Pleomorphism c. Dysplasia d. Hyperchromatism

c. Dysplasia

How much hydrocortisone is secreted daily for an individual that is not stressed? a. 1mg b. 20mg c. 100mg d. 200mg

b. 20mg

The basic design for a complete implant-supported fixed prosthesis uses how many implants a. 4 to 6 b. 6 to 8 c. 8 to 10 d. 10 to 12

b. 6 to 8

A piece of dead tissue cast from the surface of the skin, particularly during a burn injury, gangrene and anthrax? a. Ulcer b. Erosion c. Eschars d. Scales

c. Eschars

Failure of implants is frequently seen in a. Maxillary posterior b. Maxillary anterior c. Mandibular posterior d. Mandibular posterior

a. Maxillary posterior

All of the following are components of fixing solution, except a. Thiosulfate b. Acetic acid c. Potassium Alum d. Hydroquinone

d. Hydroquinone

In removing maxillary torus palatinus, which of the following nerve block should be done? a. Incisive nerve block b. Incisive and PSAN block c. Incisive and Greater palatine nerve block d. Greater palatine and PSAN block

c. Incisive and Greater palatine nerve block

Which of the following is a type of bone-implant interface? a. Fibro-osseous integration b. Osseointegration c. Biointegration d. All of the above

d. All of the above

A disease caused by a fungus a. Histoplasmosis b. Erythema multiforme c. Herpes simplex d. Herpangina

a. Histoplasmosis