Dental nurse 315 exam questions and
answers 2023-2024 with complete
solution
It is the difference for prepare a tooth for filling and prepare the tooth for an inlay -
UNDERCUT
It used to remove the pulp (nerve) - BARBED BROACH
Upper incisors protrude and the overjet is increased - CLASS II Div I
Adam's universal pliers used for - Orthodontics
A horizontal overlap is called - OVERJET
Orthodontic brackets are fixed with - Glass Ionomer
Acid etch used for composite fillings contains - 33% phosphoric acid
siqveland matrix band is used for - Class II amalgam restorations
Glass ionomer should be mixed on - A glass slab with a metal spatula OR
Waxed paper with a metal spatula
Composite dental materials are mechanically adhesive after etching to - ENAMEL
The successful obturation of the root canal is aided by - Lateral condensers
A *barbed broach* is used in endodontics to - Remove canal contents
Irreversible pulpitis can be treated by - Extraction
A mesiodens is - supernumery tooth
A sign of gingivitis is - False Pocket
The recommended concentration of fluoride in the water supply is - 1 ppm (part per
million)
The approximate concentration in ppm of fluoride in fluoride toothpaste recommended
for adults is - 1350-1500ppm
,The early stage of caries appears as - White spot
Bacterial acid attack on tooth enamel results in - DEMINERALISATION
The *usual retentive component* of a removable appliance is - CRIB
A natural space occurring between erupted teeth in either arch is called - Diastema
It is a part of the removable appliance - Labial bow
A vertical overlap is called - OVERBITE
The purpose of an orthodontic retainer is - Stabilise teeth while the bone remodels
A patient who sucks their thumb often has - Proclined incisors and an anterior *open
bite*
A functional orthodontic appliance will move teeth by: - Increase overbite
Proclined upper central incisors is a feature of - Class II Div I
The most appropriate advice for a patient who has been supplied with an upper
removable appliance - Remove it when eating
It is a part of the fixed appliance - Bracket
Good oral hygiene is important for those patients who? - Are wearing any orthodontic
appliance
Functional appliances work by using - Muscular forces to move the *jaw*
Congenitally absent teeth are those which? - Have been missing since birth
Instruments tha should be set out for a patient attending with a removable orthodontic
appliance are: - Adam's universal and spring forming pliers
The impression material often used for denture construction is - ALGINATE
(irreversible hydrocolloid)
A fixed movable type of bridge is necessary in some circumstances to allow - Slight
movement at the bridge joint
The inhalation or swallowing of endo instruments can be prevented by the use of: - -
Parachute chains
- Rubber dam
- Floss ties around the instruments
, A bridge which has retainers several teeth away from the pontic is called a - Spring
cantilever bridge
The instrument used to curette infected or cystic debris from a surgical site is -
Mitchells trimmer
An oroantral fistula is most likely to develop following the attempted extraction of -
Upper molar roots
The commonest post operative extraction complication is - A localised *osteitis*
Critical pH is - 5.5
Streptococcal bacteria have been indicated in causing - Caries
Subgingival plaque will contain - - Anaerobic bacteria
- Food debris
- Dead blood cells
The natural repair of enamel is known as - Remineralisation
The wear of the teeth by *grinding* is known as - ATTRITION
The hard rock like substance found commonly on the lingual surfaces of anterior teeth is
known as - CALCULUS
Excessive consumption of fluoride can result in - FLUOROSIS
Titanium implants can be used in edentulous patients to - Replace teeth
A tooth which is correctly root filled but has residual periapical pathology may require -
Apicectomy
A Willis Gauge is used to measure - intercanthal distance
The bacteria in plaque turns sugar into - Lactic acid
Inflammation around an erupting tooth is known as - PERICORONITIS
How does the first stage of periodontal disease initially present? - CHRONIC
GINGIVITIS
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