drhermanchung   Chat

Offline : 1yr ago


hello my dear colleagues, I am new to ortho field ,recently got a case like this and want to discuss the diagnosis and treatment plan with you guys!
the patient is 14 y.o female, seek to correct the protrusive lip.
Initially before reading the xray ,I though this would be a straight forward class II div 1 case which would be a good candidate for class II corrector like Herbst appliance/Twin block . However it is a bit more complicated than I though. I think it would be nice to discuss here and get some new insight!
1. Why would both the canine and molar be in class II( and that huge overjet!) while the skeletal base is in class I ? what would be the cause and diagnosis here?
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Dental classification and skeletal classification can be thought separately. I think that all treatment plans are confused because of the retained deciduous molar. You need to decide whether to do space closure after extraction of the deciduous molar or not. If you decide not to extract the deciduous molar, the molar key will not set exactly. If 14, 24, 75, 85 are extracted, it is needed mandibular molar mesialization and the TAD for maxillary teeth.