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Eruption Patterns of Permanent Molars by ScribdTranslations is a document available to read on EtoBox.
The first permanent molar will erupt in class I if its cusps occupy the upper and lower dental spaces, but it could deviate to class II if it does not use the lower space; it could also deviate to class III if it only uses the lower space. Eruption in class I occurs when the upper mesiobuccal cusp fits into the buccal groove of the second lower molar.
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- EN