11 Questions
What is the recommended inclination of the inclined planes of the bite blocks?
70°
In which situation should the bite block be relieved to allow eruption of the lower molars?
Deep bite tendency
What is the purpose of using a modified Twin block appliance?
Procline the upper incisors into a Class II division 1 before starting functional appliances phase.
What is the recommended duration for wearing the appliance in monobloc and twin block appliance?
Monobloc: Full time, Twin block: 12 hours
What is a potential reason for terminating treatment with functional appliances?
"Overcorrection" to allow for some relapse after the functional phase.
What is the main purpose of Fränkel appliances?
"Displace cheeks and lips away from teeth and encourage forwards posture of the mandible."
What distinguishes fixed functional appliances from removable functional appliances?
Fixed functional appliances suffer less relapse than removable ones.
At what age is early mixed dentition considered suitable for starting treatment with fixed functional appliances?
8-10 years old
At what stage is treatment for skeletal Class III due to maxillary deficiency best performed?
CS1, CS2 (pre-pubertal stage)
What is the function of a chin cup in orthodontic treatment?
To act through restriction of further maxillary growth by using extra oral means such as face bow and head cap/neck strap.
What indicators are suggested for determining ideal treatment time for Class II mandibular deficiency?
Radiographic indicators
Test your knowledge on the classification of removable appliances used in orthodontic treatment, including passive, functional, and active (mechanical) types. This quiz covers appliances designed to guide natural muscular forces to correct skeletal malocclusion and deliver orthopedic forces.
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