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A Modified ACCO for Class II Nonextraction Treatment

This article describes a modified, second-generation Acrylic Cervical Occipital (ACCO) appliance.1 The first ACCO, developed by Margolis, was a modification of the Hawley retainer, with the addition o...

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DR. MATHEUS MELO PITHON DDS, MS, PhD

DR. MATHEUS MELO  PITHON DDS, MS, PhD

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