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Third-Generation Mandibular Bonded Lingual 3-3 Retainer

Recent legal opinions have held that orthodontic records should be kept indefinitely if possible.1-4 However, several authors have implied that this is impractical and have attempted to define some lo...

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BJORN U. ZACHRISSON, DDS, MSD, PHD

BJORN U. ZACHRISSON, DDS, MSD, PHD
Dr. Zachrisson is a Contributing Editor of the Journal of Clinical Orthodontics; Professor of Orthodontics, University of Oslo; and in the private practice of orthodontics at Stortingsgt. 10, 0161 Oslo, Norway.

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