摘要2008年10月31日至11月3日，中华口腔正畸专业委员会主任委员许天民教授，执行秘书李巍然教授代表中国正畸学会访问了座落于美国圣路易斯州美国正畸协会（AAO）总部的美国正畸专家认证委员会（American Board of Orthodontics，ABO），参加了美国牙科教育委员会在AA0总部举办口腔正畸学教育家年会，及由ABO举办的全美正畸教师代表年会。
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