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机译:Class II Division 1 malocclusion treatment with extraction of maxillary first molars: Evaluation of treatment and post-treatment changes by the PAR Index
Univ Med Ctr Groningen, Dept Orthodont, Groningen, Netherlands;
Radboud Univ Nijmegen, Med Ctr, Radboud Inst Hlth Sci, Dept Dent, Nijmegen, Netherlands;
Dent Clin Zwolle, Zwolle, NetherlandsRadboud Univ Nijmegen, Med Ctr, Dept Dent Orthodont & Craniofacial Biol, Nijmegen, NetherlandsUniv Bern, Med Fac, Sch Dent Med, Dept Orthodont & Dentofacial Orthoped, Bern, Switzerland;
angle class II; longitudinal study; maxillary first molar extraction; PAR index; treatment outcome;