Removable orthodontic appliance

what type of tooth movement is achieved in removable orthodontic appliance?

• bodily movement

• tipping

• simple rotation

• both b and c

what are the retentive coponents of removable orthodontic appliance

• wires

• retentive tag

• clasp

• bow

what is the other name for c-clasp?

• jacksons clasp

• 3 quater clasp

• circumferential clasp

• both b and c

bridge of adams clasp is fabricated of what angulation?

• 45degree

• 60degree

• 90degree

• 120degree

what is the other name for schwartz clasp?

• head clasp

• arrowhead clasp

• arrow clasp

• all the above

split labial bow is commonly used in?

• closure of midline diastema

• closure of space distal to central incisor

• retraction of anteriors

• none of the above

what formula is used for spring in relation to diameter and strength of wire?

• force=D/L⁹

• F=D²/L³

• F=L³/D⁴

• F=D⁴/L³

What gauge is used in springs?

• 0.2mm

• 0.5mm

• 0.3mm

• 0.9mm

which spring is used to correct single tooth anterior crossbite?

• fingerspring

• double canteliver spring

• palatal canine retractor

• none of the above

Anterior bite plane is used to correct the following?

• scissor bite

• deep bite

• open bite

• cross bite