HW EXAM 2025 WITH 100% CORRECT
ANSWERS
-In ______ malocclusion, the mesiobuccal cusp of the maxillary permanent first molar occludes
in the interdental space between the distal cusp of the mandibular first permanent molar and
the mesial cusp of the mandibular second permanent molar.
-Class I
-Class II, Division 1
-Class II, Division 2
-Class III - CORRECT ANSWER✔✔Class III
_____ are attached to hooks or buttons that are secured on the band or brackets.
-Springs
-Tooth positioners
-Elastic separators
-Elastics - CORRECT ANSWER✔✔Elastics
Which statement is incorrect about preparing a band for cementation?
-Wipe attachments with wax or Chapstick.
-Place the band occlusal surface down on masking tape.
-Place the band gingival surface down on masking tape.
-Fill the entire inner surface with cement. - CORRECT ANSWER✔✔Place the band gingival
surface down on masking tape.
In orthodontics, which radiograph is taken to study and make measurements of the skull and
analyze growth patterns?
, -Panoramic
-Cephalometric
-Bitewing
-Occlusal - CORRECT ANSWER✔✔Cephalometric
Which step is first in preparation for bonding the brackets to the teeth?
-Isolate using cotton rolls or retractors.
-Polish using a fluoride-free paste.
-Etch, rinse, and dry.
-None are correct. - CORRECT ANSWER✔✔Polish using a fluoride-free paste.
Arch wires that are made of _____ are useful in early stages of treatment because they are
flexible.
-nickel titanium
-stainless steel
-beta titanium
-Opti-Flex - CORRECT ANSWER✔✔nickel titanium
Which statement is correct about sticky candy and gum use during orthodontic treatment?
-It weakens cement beneath bands, causing bands to loosen.
-It loosens bands, pulls out ligature ties, and bends arch wires.
-It lodges between bands and beneath arch wires, causing irritation to gum tissues.
-It can increase the chance of carious lesions. - CORRECT ANSWER✔✔It loosens bands, pulls out
ligature ties, and bends arch wires.
Which cement is most commonly used for cementing orthodontic bands?
-Calcium hydroxide cement
ANSWERS
-In ______ malocclusion, the mesiobuccal cusp of the maxillary permanent first molar occludes
in the interdental space between the distal cusp of the mandibular first permanent molar and
the mesial cusp of the mandibular second permanent molar.
-Class I
-Class II, Division 1
-Class II, Division 2
-Class III - CORRECT ANSWER✔✔Class III
_____ are attached to hooks or buttons that are secured on the band or brackets.
-Springs
-Tooth positioners
-Elastic separators
-Elastics - CORRECT ANSWER✔✔Elastics
Which statement is incorrect about preparing a band for cementation?
-Wipe attachments with wax or Chapstick.
-Place the band occlusal surface down on masking tape.
-Place the band gingival surface down on masking tape.
-Fill the entire inner surface with cement. - CORRECT ANSWER✔✔Place the band gingival
surface down on masking tape.
In orthodontics, which radiograph is taken to study and make measurements of the skull and
analyze growth patterns?
, -Panoramic
-Cephalometric
-Bitewing
-Occlusal - CORRECT ANSWER✔✔Cephalometric
Which step is first in preparation for bonding the brackets to the teeth?
-Isolate using cotton rolls or retractors.
-Polish using a fluoride-free paste.
-Etch, rinse, and dry.
-None are correct. - CORRECT ANSWER✔✔Polish using a fluoride-free paste.
Arch wires that are made of _____ are useful in early stages of treatment because they are
flexible.
-nickel titanium
-stainless steel
-beta titanium
-Opti-Flex - CORRECT ANSWER✔✔nickel titanium
Which statement is correct about sticky candy and gum use during orthodontic treatment?
-It weakens cement beneath bands, causing bands to loosen.
-It loosens bands, pulls out ligature ties, and bends arch wires.
-It lodges between bands and beneath arch wires, causing irritation to gum tissues.
-It can increase the chance of carious lesions. - CORRECT ANSWER✔✔It loosens bands, pulls out
ligature ties, and bends arch wires.
Which cement is most commonly used for cementing orthodontic bands?
-Calcium hydroxide cement
