1-4. Class II functional orthopaedic treatment: a systematic review of systematic reviews
Functional appliances generally result in a reduction of overjet. - correct answer True
Headgear consistently reduces overjet in Class II patients. - correct answer False
Twin Block appliances show changes in both jaws during treatment. - correct answer True
All systematic reviews included in the study had high methodological quality. - correct answer
False
The mandibular lengthening effect from functional appliances is clinically significant. - correct
answer False
There is some evidence of maxillary growth restriction with headgear and Twin Block. - correct
answer True
Splint-Type Herbst appliances show strong evidence of overjet correction. - correct answer
False
Lower incisor proclination is commonly associated with Twin Block treatment. - correct answer
True
Upper incisor retroclination is associated with Twin Block use. - correct answer True
Activator appliances have no skeletal impact on mandibular growth. - correct answer False
Functional appliances improve sagittal intermaxillary relationships compared to no treatment. -
correct answer True
Soft tissue changes were consistently reported across studies. - correct answer False
The AMSTAR score was used to assess the quality of the SRs. - correct answer True
Jasper Jumper appliances produce clear soft tissue changes. - correct answer False
Overjet correction was most pronounced in Twin Block studies. - correct answer True
Studies using untreated Class II control groups provided better evidence. - correct answer True
The mandibular sagittal changes reported were generally minor. - correct answer True
The ANB angle decreased after functional appliance treatment. - correct answer True
Bionator appliances showed the greatest mandibular growth effect. - correct answer False
There was some evidence supporting proclination of the lower incisors. - correct answer True
What is the main skeletal measurement to assess sagittal correction? - correct answer ANB
angle
Which appliance showed the greatest overjet reduction? - correct answer Twin Block
Functional appliances generally result in a reduction of overjet. - correct answer True
Headgear consistently reduces overjet in Class II patients. - correct answer False
Twin Block appliances show changes in both jaws during treatment. - correct answer True
All systematic reviews included in the study had high methodological quality. - correct answer
False
The mandibular lengthening effect from functional appliances is clinically significant. - correct
answer False
There is some evidence of maxillary growth restriction with headgear and Twin Block. - correct
answer True
Splint-Type Herbst appliances show strong evidence of overjet correction. - correct answer
False
Lower incisor proclination is commonly associated with Twin Block treatment. - correct answer
True
Upper incisor retroclination is associated with Twin Block use. - correct answer True
Activator appliances have no skeletal impact on mandibular growth. - correct answer False
Functional appliances improve sagittal intermaxillary relationships compared to no treatment. -
correct answer True
Soft tissue changes were consistently reported across studies. - correct answer False
The AMSTAR score was used to assess the quality of the SRs. - correct answer True
Jasper Jumper appliances produce clear soft tissue changes. - correct answer False
Overjet correction was most pronounced in Twin Block studies. - correct answer True
Studies using untreated Class II control groups provided better evidence. - correct answer True
The mandibular sagittal changes reported were generally minor. - correct answer True
The ANB angle decreased after functional appliance treatment. - correct answer True
Bionator appliances showed the greatest mandibular growth effect. - correct answer False
There was some evidence supporting proclination of the lower incisors. - correct answer True
What is the main skeletal measurement to assess sagittal correction? - correct answer ANB
angle
Which appliance showed the greatest overjet reduction? - correct answer Twin Block
