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NDAEB PRACTICE EXAM TESTBANK 202 5 / ACTUAL
EXAM WITH 500+ QUESTIONS AND VERIFIED
ELABORATIONS/NEW UPDATE- 2025 /2026 ALREADY
GRADED A+
Who was the first woman to graduate from a recognized dental college? Lucy B. Hobbs-Taylor What are the conditions that would indicate the need for restorative dentistry?
- initial or recurring decay
- replacement or failed restorations
- abrasion or wearing away of tooth structure True or False: Aesthetic dentistry is primarily devoted to improving the appearance of teeth; specific conditions that indicate a need for aesthetic treatment include the replacement of a partial denture. False The process of removing unhealthy tooth structure while leaving a limited amount of healthy structure for the tooth to maintain a restoration is known as cavity preparation. This process involves which of the following steps?
- initial preparation
- outline, resistance, retention, convenience form
- final preparation
Responsibilities of the dental assistant in the restorative process can include performing expanded function and maintaining patient control. True Class II restorations are found on the.... Posterior teeth The usual material of choice for class III and Class IV restorations is ... Composite Resin The Class V restoration is classified as a smooth surface filling and can be found on the...
- incisors
- canines
- premolars When are retention pins used as a part of the direct restorative process?
- when decay has extended beyond the normal size and shape of the cavity
tofflemire retainer and matrix band The universal/Tofflemire retainer holds the matrix band snugly in position and is most often positioned... on the buccal surface of the tooth being restored The class II restoration requires a matrix band to act as an artificial wall that must make proper contact with the adjacent tooth; this is accomplished by...
- using a wedge
- contouring the centre of the matrix band in the proximal contact area
- the dentists design of the inter proximal cavity preparation The matrix is used for anterior CR or GI restorations... Clear Plastic Coronal Polishing is a technique used:
- to remove plaque and stains from coronal surfaces of the teeth
- before placement of dental sealants and orthodontic bands
- before placement of the dental dam and before acid etching Patients at high risk for caries or with areas of thin demineralized enamel are contraindications for coronal polishing True Coronal polishing is the complete removal of calculus, debris, stains and plaque from the teeth False Exogenous stains are caused by an environmental source and are classified into subdivisions, including which of the following:
- Intrinsic stains
- Extrinsic stains Extrinsic stains can be removed from the teeth by:
- air-powder polishing
- rubber cup polishing
Sealants shouldn't be used in which of the following situations:
- obvious dental decay or proximal surface decay
- primary teeth that will be lost soon
- poor patient cooperation in the dental chair or lack of pits & fissures Sealants may vary in:
- method of polymerization
- colour
- whether they contain fillers A general tip for sealant materials is to store them in a refrigerator: False The first step in placing dental sealants is to: clean the surface
A sealant that is polymerized by chemical reactions is called: Self-Cured Self-Cured sealant materials are supplied as a two-part system that includes:
- a base
- a catalyst Dental sealants should be used as part of a preventative program that includes:
- fluorides
- dietary considerations
- plaque control Enamel that has been etched has the appearance of being: frosty
Local Anesthesia is added to local anesthetic agent to slow down the intake of the agent and increase the duration of action Vasoconstrictor The the ratio, the higher the percentage of vasoconstrictor in the anesthetic agent Smaller Patients with a hx of heart conditions such as angina, recent heart attack, recent coronary artery bypass surgery, severe hypertension, and untreated or uncontrolled CHF should always use a local anesthetic with a vasoconstrictor False The time from when the local anesthetic takes complete effect until the complete reversal of anesthesia is the of the anesthetic agent duration
A short-acting local anesthetic agent can last from: 60 - 180 minutes is achieved by injecting the anesthetic solution directly into the tissue at the site of a dental procedure and is generally used on the maxillary arch infiltration anesthesia is frequently used on the mandibular teeth and is injected near a major nerve that numbs the entire area served by that nerve branch block anesthesia The parts of the anesthetic syringe include:
- thumb ring, finger grip, and finger bar
- barrel and threaded tip
- harpoon and piston rod
- uses an aspirating syringe
- always aspirates before depositing any solution Anesthetic solutions are extremely effective for patients with a tooth or soft tissue infection.. False Parathesia, the condition in which numbness lasts after the effects of the local anesthetic solutions should have worn off, may be caused by:
- contaminated anesthetic solution
- trauma/injury to nerve sheath during injection or surgery
- hemorrhage into/around nerve sheath Nitrous Oxide/Oxygen analgesia use in dentistry dates back to 1844 and is also known as: Inhalation sedation An advantage of using nitrous oxide/oxygen is that it is relatively simple to administer and easy to manage.. True
No absolute medical contraindications exist for N2O/O2 analgesia, but certain conditions make it a poor choice for some patients True Which of the following must be used to protect dental personnel from the occupational risks of nitrous oxide by reducing the N2O released into the treatment room?
- Scavenger System
- Patient mask that fits well and doesn't leak Nitrous oxide oxygen administration always begins and ends with: the patient breathing 100% O In the dental office, sedatives may be used:
- for a very nervous patient
- for a procedure that will be long or difficult
- for a mentally challenged patient
has begun. completed/updated medical hx Who is responsible for providing care if a medical emergency involving a patient takes place in the dental office?
- dentist
- DA
- office staff Every staff member should have an assigned role in an emergency situation & staff members should practice their specific roles once a month before an emergency arises.. True The list of emergency phone numbers posted next to each phone throughout the office should include:
- police/firefighters
- ems
- nearest hospital, physicians, oral surgeons
A medical emergency can happen at any time, so it is important for the DA to: be alert and continuously observe pt to watch for problems
without oxygen. 4 - 6 minutes The most important measures in preventing an airway obstruction during dental treatment include:
- use of HVE
- use of dental dam
- placement of a throat pack (gauze placed at the base of throat during surgery) The AED is used to:
- reestablish proper heart rhythm by defibrillation
- shock the heart
- monitor the pt's heart rhythm When defibrillation is provided within the first 4 minutes of cardiac arrest, there is about a chan ce that you can save the victims life.. 50 % The DA's responsibility in an emergency situation is:
- recognize signs & symptoms of a significant medical complaint
- to provide appropriate support in implementing emergency procedures When assessing a medical emergency, the DA should remember that the physical changes observed can include:
- unconsciousness
- convulsions
- respiratory distress A reduction in blood flow to the brain that would cause the pt to lose consciousness is called: Syncope/Fainting Treatment for Syncope may include:
- ammonia inhalant
- placing pt in a sub-supine position
- calling 911 Symptoms of an acute myocardial infarction include:
- short of breath
- nausea/vomiting
