Dentistry Flashcards
FOG - 1
The role of the dental prosthesis except:
A) restore the masticatory ability
B) restore the voice projection caused by tooth loss
C) provide proper support for the lips
D) to provide the ability for the patient to nail-biting
E) provide proper face height
ANSWER
D) to provide the ability for the patient to nail-biting
EXPLANATION
The role of the dental prosthesis is the aesthetic, functional, voice projection rehabilitation of the teeth. The nail biting is better to avoid due to hygienic reasons and the overload of the masticatory system.
FOG - 2
Not true for medication-related osteonecrosis of the jaw:
A) more common on the lower jaw
B) more common in the molar region
C) occurs more often if the patient has diabetes mellitus
D) more common if the bisphosphonate is dosed per os rather than intravenous
E) Not always, but most of the cases are developed after an oral surgery procedure.
ANSWER
D) more common if the bisphosphonate is dosed per os rather than intravenous
EXPLANATION
All the answers are correct, except D. The use of intravenous bisphosphonates is more likely to cause MRONJ than per os bisphosphonates.
FOG - 3
The aesthetic requirements of dental prostheses:
A) appropriate for the sex and age of the patient
B) appropriate for the race
C) fulfill the expectations of the patient
D) fit to the remaining teeth in color and shape
E) all the answers are correct
ANSWER
E) all the answers are correct
EXPLANATION
All the listed points are important aesthetic requirements when making dental prostheses.
FOG - 4
Most often causes allergy among the dental materials:
A) amalgam
B) precious metal alloys
C) non-precious metal alloys
D) glass ionomer cement
E) titanium
ANSWER
C) non-precious metal alloys
EXPLANATION
The frequency of nickel allergy can be as high as 10% in some populations. Therefore in the case of non-precious metal alloys, it is becoming very important to strive to be nickel-free.
FOG - 5
The most informative imaging test in the case of temporomandibular joint (TMJ).
A) MRI
B) CBCT examination of cheekbones and jaws
C) orthopantomogram
D) lateral skull CT
E) skull CT
ANSWER
A) MRI
EXPLANATION
The MRI is a gold standard imaging test when joints are tested. The articular disc of the TMJ has a key role in the joint’s function. The articular disc is a fibrous connective tissue that is not visible on the X-ray. The MRI is imaging of the soft tissue and is capable of testing the TMJ.
FOG - 6
Medication groups induce medication-related osteonecrosis of the jaw:
1) aminobisphosphonate
2) denosumab
3) VEGF antibody
4) non-aminobisphosphonate
A) Answers 1, 2 and 3 are correct
B) Answers 1 and 3 are correct
C) Answers 2 and 4 are correct
D) Only answer 4 is correct
E) All of the answers are correct
ANSWER
E) All of the answers are correct
EXPLANATION
All of the listed medication groups can induce medication-related osteonecrosis of the jaw.
FOG - 7
You notice an unconscious person, lying on the street. During airway management the …… has to be removed from the mouth:
1) porcelain fused to metal removable partial denture cemented on the teeth
2) complete denture in the lower jaw
3) screw-retained implant crown
4) clasp retained removable partial denture
A) Answers 1, 2 and 3 are correct
B) Answers 1 and 3 are correct
C) Answers 2 and 4 are correct
D) Only answer 4 is correct
E) All of the answers are correct
ANSWER
C) Answers 2 and 4 are correct
EXPLANATION
The removable dentures need to be removed because they can cause airway obstruction if the patient is unconscious.
FOG - 8
What kind of dental prosthesis can be made to replace the lower missing first molar?
1) solo crown on a solo implant
2) porcelain fused to metal fixed partial denture retained on the two neighbor teeth (“bridge”)
3) porcelain fused to zirconium-dioxide fixed partial denture retained on the two neighbor teeth (“bridge”)
4) complete denture
A) Answers 1, 2 and 3 are correct
B) Answers 1 and 3 are correct
C) Answers 2 and 4 are correct
D) Only answer 4 is correct
E) All of the answers are correct
ANSWER
A) Answers 1, 2 and 3 are correct
EXPLANATION
In the case of single tooth loss the best choice is the implant replacement if it is possible.
FOG - 9
Major symptom(s) of the temporomandibular disorder (TMD):
1) facial pain related to jaw movements
2) limitation of mouth opening
3) clicking, popping, or grinding when moving the jaw
4) excessive tooth wear
A) Answers 1, 2 and 3 are correct
B) Answers 1 and 3 are correct
C) Answers 2 and 4 are correct
D) Only answer 4 is correct
E) All of the answers are correct
ANSWER
A) Answers 1, 2 and 3 are correct
EXPLANATION
Based on the definition the major symptoms of TMD are: pain, clicking, popping or grinding, and limitation in the mouth opening related to the jaw movements. The tooth wear is only a minor symptom.
FOG - 10
Aetiology of the TMD can be:
1) stress
2) occlusal discrepancy related to inadequate prosthetic or orthodontic treatment
3) macro- or micro-trauma in the temporomandibular joints
4) inadequate root canal treatment
A) Answers 1, 2 and 3 are correct
B) Answers 1 and 3 are correct
C) Answers 2 and 4 are correct
D) Only answer 4 is correct
E) All of the answers are correct
ANSWER
A) Answers 1, 2 and 3 are correct
EXPLANATION
Micro-trauma is when continuous blows are transmitted to the temporomandibular joints due to insufficient contact between the upper and lower teeth. This effect is increased by grinding the teeth because of stress.
FOG-11-14
Match the following.
A) the temporomandibular joints
B) the masticatory muscles
C) both of them
D) none of them
FOG - 11 - It can be the origin of the pain due to temporomandibular disorder (TMD)
FOG - 12 - If this is affected, the limited active mouth opening can be passively open an additional 3-5 mm.
FOG - 13 - Their dysfunction can be the result of occlusal problem/discrepancy
FOG - 14 - The limited active mouth opening can not be further opened passively
ANSWER
FOG - 11 - It can be the origin of the pain due to temporomandibular disorder (TMD) - C)
FOG - 12 - If this is affected, the limited active mouth opening can be passively open an additional 3-5 mm. - B)
FOG - 13 - Their dysfunction can be the result of occlusal problem/discrepancy - C)
FOG - 14 - The limited active mouth opening can not be further opened passively - A)
FOG-15-18
Match the following.
A) removable denture
B) fixed partial denture
C) both of them
D) none of them
FOG - 15 - It does not occupy greater space than the natural teeth
FOG - 16 - In this case, the hygienic aspect is more favorable, easier to keep it clean
FOG - 17 - It can be fabricated with the digital labor technique
FOG - 18 - The patients prefer this type of dental prosthesis
ANSWER
FOG - 15 - It does not occupy greater space than the natural teeth - B)
FOG - 16 - In this case, the hygienic aspect is more favorable, easier to keep it clean - A)
FOG - 17 - It can be fabricated with the digital labor technique - C)
FOG - 18 - The patients prefer this type of dental prosthesis - B)
FOG - 19
The MRONJ is a multifactorial disease and the most important etiology is the local radiotherapy in the affected area.
A) both are correct, there is a causal relationship between them
B) both are correct, but there is no causal relationship between them
C) the first is correct in itself, but the second is wrong
D) the first is wrong, the second is correct in itself
E) both are wrong
ANSWER
C) the first is correct in itself, but the second is wrong
EXPLANATION
Local and systematic factors also play roles in MRONJ. Osteonecrosis of the jaw caused by radiotherapy is called osteoradionecrosis.
FOG - 20
If possible, we try to replace a single tooth loss, because the neighbor tooth can be migrated as a consequence of tooth loss.
A) both are correct, there is a causal relationship between them
B) both are correct, but there is no causal relationship between them
C) the first is correct in itself, but the second is wrong
D) the first is wrong, the second is correct in itself
E) both are wrong
ANSWER
A) both are correct, there is a causal relationship between them
EXPLANATION
The replacement of tooth loss has several local, systematic, and financial contraindications. If there are no contraindications we try to replace the tooth loss. The tooth loss has several negative consequences, one of the most important is tooth migration.
FOG - 21
The patients prefer the removable dentures because it is easier to keep them clean than the fox partial dentures.
A) both are correct, there is a causal relationship between them
B) both are correct, but there is no causal relationship between them
C) the first is correct in itself, but the second is wrong
D) the first is wrong, the second is correct in itself
E) both are wrong
ANSWER
D) the first is wrong, the second is correct in itself
EXPLANATION
The cleaning of removable dentures is easier than fixed partial dentures, but most patients prefer fixed dentures.
FOG - 22
The incidence ratio of temporomandibular disorder (TMD) between men and women is 1:2 because parafunctional activities (tooth clenching, grinding) are important etiological factors in TMD.
A) both are correct, there is a causal relationship between them
B) both are correct, but there is no causal relationship between them
C) the first is correct in itself, but the second is wrong
D) the first is wrong, the second is correct in itself
E) both are wrong
ANSWER
B) both are correct, but there is no causal relationship between them
EXPLANATION
TMD is twice as common among women and parafunctional activities are one of the most important etiological factors, but the two statements are not related to each other.
FOG - 23
Treatment of a permanent tooth’s crown fracture with small-size pulp exposition, if not too much time passed since the accident:
A) pulpectomy
B) pulpotomy
C) indirect pulp capping
D) direct pulp capping
E) Root canal treatment in one session
ANSWER
D) direct pulp capping
EXPLANATION
In these circumstances, it can be claimed that the pulp tissue is not infected and the vitality can be preserved with medicational pulp capping
FOG - 24
Type of luxatio partialis dentis permanentis:
A) extrusion
B) lateral luxation
C) subluxation
D) all of the above
E) none of the above
ANSWER
D) all of the above
EXPLANATION
All three listed injuries are the type of partial luxation.
FOG - 25
Which form of primary tooth injury most often causes malformation in permanent teeth?
A) crown fracture
B) root fracture
C) intrusion
D) partial luxation
E) total luxation
ANSWER
C) intrusion
EXPLANATION
The intrusion (tooth press inside the alveolus) can cause most often mechanical injury in the homologous germ of the permanent tooth in the case of primary tooth accidents.
FOG - 26
Which contagious childhood disease can be a complication of orchitis and consecutive sterility?
A) chicken-pox
B) scarlatina
C) morbilli
D) epidemic parotitis
E) herpetic gingivostomatitis
ANSWER
D) epidemic parotitis
EXPLANATION
The epidemic parotitis (mumps) is caused by a virus that infects children. It is transmitted by airborne, and forms long-term immunity, the complications are otitis media, meningitis, and orchitis.
FOG - 27
Koplik spot is a symptom of which childhood disease?
A) chicken-pox
B) scarlatina
C) morbilli
D) epidemic parotitis
E) gingivostomatitis herpetica
ANSWER
C) morbilli
EXPLANATION
The morbilli starts with whooping cough and on the second day of the disease small blueish-white spots (Koplik spots) appear in the hyperemic mucosa most often buccaly in the high of occlusal plane against the 5 and 6 teeth. The diagnosis of Koplik spots means the diagnosis of morbilli. The spots disappear after 2-3 days when exanthemas appear.
FOG - 28
Which disease’s characteristic symptoms are the large number of impacted tooth germs blocked from breaking through?
A) ectodermal dysplasia
B) epidermolysis bullosa
C) cleidocranial dysostosis
D) Papillon Lefevre syndrome
E) Down syndrome
ANSWER
C) cleidocranial dysostosis
EXPLANATION
The symptoms of dysostosis cleidocranialis are: missing or hypoplastic clavicle, prolonged ossification of the cranial bones, large number (normal and supernumerary) of impacted tooth germs in the jaws blocked from breaking through.
FOG - 29
What can cause Turner’s tooth?
A) inheritance
B) viral infection
C) fluoride overdose
D) inflammation around the root of the primary tooth
E) none of them
ANSWER
D) inflammation around the root of the primary tooth
EXPLANATION
What can cause Turner’s tooth? The inflammation around the root of the primary tooth due to trauma or caries can cause serious developing disorders in the mineralization of the homologous permanent tooth. This hypo-mineralized and brownish-discolored tooth is the Turner tooth.
FOG - 30
The consequences of baby bottle syndrome:
A) caries (decay) on upper and lower primary incisors
B) gingivitis
C) periodontitis
D) circular caries (decay) on the upper four primary incisors
E) all of them
ANSWER
D) circular caries (decay) on the upper four primary incisors
EXPLANATION
The sugar-coated pacifier, sugar-sweetened beverages like tea from baby bottles and syrups cause circular caries in typical localization. The lesion of the upper primary incisors is first brownish discoloration around the tooth neck then progress into tooth decay, if neglected can cause tooth fracture as well.