- Category: Orthodontics & Pediatric Dentistry
- Aim: Revising for NBDE Part II
- Questions: 25
- Hint: No
- Mutiple Opportunites: No
- Time Limit: No
- Answer Explaining: Yes
Orthodontics and Pediatric Dentistry
Formocresol has been shown to have a very good success rate when used as a medicament for pulpotomy procedures. Why is there continued interest to find another medicament that performs as well as or better than formocresol?
Application of formocresol is a clinically time- consuming procedure.
Formocresol is toxic and there is possible bloodborne spread to vital organs.
It has been demonstrated that formocresol may cause spontaneous abortion.
It has been demonstrated that formocresol may cause failure to develop adequate lung capacity in children.
Orthodontic closure of a midline diastema in a patient with a heavy maxillary frenum.
Is accomplished prior to the frenum surgery.
Is accomplished after the frenum surgery.
After orthodontic closure, frenum surgery is typically not indicated.
After frenum surgery, orthodontic closure is typically not indicated.
The mother of a 5-year-old patient is concerned about the child's thumb-sucking habit. Six months ago, the patient had 5-mm overjet and a 3-mm anterior open bite. Today, the patient has 10% overbite and 3.5-mm overjet. The mother says that the child only sucks his thumb every night when falling to sleep. Of the following, which is the best advice?
Refer to a speech pathologist.
Recommend tongue thrust therapy.
Recommend a thumb-sucking appliance.
Counsel the parent regarding thumb-sucking, and recall the patient in 3 months.
Your patient is 4 years old. Tooth E was traumatically intruded and approximately 50% of the crown is visible clinically. What is your treatment of choice?
Reposition and splint
Reposition, splint, and primary endodontics
Reposition, splint, and formocresol pulpotomy
None of the above
Reduction of overbite can be accomplished most readily by which of the following tooth movements?
Intruding maxillary incisors
Uprighting maxillary and mandibular incisors
Using a high-pull headgear to the maxillary molars
Using a lip bumper
Maxilla, mandible, and cranial vault
Ethmoid, sphenoid, and occipital
Palatal, nasal, and zygoma
Frontal and parietal
When Class III elastics are used, the maxillary first molars will ___.
Move distally and intrude
Move mesially and extrude
Move mesially and intrude
Move only mesially; there will be no movement in the vertical direction
Replant, splint, primary endo
Replant, splint, formocresol pulpotomy
Replant, no splint, primary endo
None of the above
Which of the following is the most likely cause of pulpal necrosis following trauma to a tooth?
Primary second molars, primary first molars, permanent first premolars, primary canines
Primary canines, primary first molars, permanent first premolars
Primary first molars, primary second molars, primary canines
Primary canines, permanent canines, primary first molars, permanent first premolars
Band-loop space maintainer
Lower lingual holding arch
Nance holding arch
Distal shoe space maintainer
None of the above
A permanent incisor with an open apex is extruded 4 mm following an injury 15 minutes ago. What is the treatment of choice?
No immediate treatment, monitor closely for vitality.
Reposition, splint, monitor closely for vitality.
Reposition, splint, initiate calcium hydroxide pulpotomy.
Reposition, splint, initiate calcium hydroxide pulpectomy.
Discuss the situation with the parents.
Force the nitrous oxide nosepiece over the child’s mouth and nose.
Use the hand over mouth exercise (HOME).
Use a firm voice control.
The enamel rods in the gingival third of primary teeth slope occlusally instead of cervically as in permanent teeth, and the interproximal contacts of primary teeth are broader and flatter than permanent teeth.
The first statement is true and the second statement is true.
The first statement is true and the second statement is false.
The first statement is false and the second statement is true.
The first statement is false and the second statement is false.
An adult patient with a Class II molar relationship and a cephalometric ANB angle of degrees has which type of malocclusion ?
Class II dental malocclusion
Class II skeletal malocclusion
Class I dental malocclusion
Class II skeletal malocclusion
Which of the following is the definition of conscious sedation?
A minimally depressed level of consciousness that retains the patient’s ability to independently and continuously maintain an airway and respond appropriately to physical stimulation or verbal command.
A significantly depressed level of consciousness that retains the patient’s ability to independently and continuously maintain an airway and respond appropriately to physical stimulation or verbal command.
A minimally depressed level of consciousness that retains the patient’s ability to independently and continuously maintain an airway.
A significantly depressed level of consciousness that retains the patient’s ability to independently and continuously maintain an airway.
Brackets should be placed to close it.
A radiograph should be taken to rule out the presence of a supernumerary tooth.
Nothing should be done. It will close on its own.
Nothing should be done. Treatment should be deferred until the rest of the permanent dentition erupts.
Devitalization of teeth that are moved
Mobility of teeth that are moved
Development of occlusal interferences
An increased overbite
A decreased overbite
An ideal overbite
A significant open bite
Crowding of the primary dentition usually resolves as the permanent teeth erupt.
Spacing in the primary dentition usually indicates spacing will be present in the adult.
Approximately 15% of adolescents have crowding severe enough to consider extraction of permanent teeth as part of treatment.
Lower incisor crowding is more common in African-American than white populations.
The moment would decrease by 50%.
The moment would not change.
The moment would double.
The moment would increase by 4 times.
Place calcium hydroxide on the pinpoint exposure
Open the pulp chamber to find healthy pulp tissue and perform a pulpotomy
Initiate a calcium hydroxide pulpectomy
Initiate conventional root canal treatment with
From the posterior to the anterior within the maxillary arch
From the posterior to the anterior within the mandibular arch
From the posterior of the maxillary arch to the anterior of the mandibular arch
From the posterior of the mandibular arch to the anterior of the maxillary arch