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• Posted By : vickong pun
• Posted On : Jul 08, 2021
• Views : 102
• Category : Education
• Description : http://www.nearhk.com/health/">兒童牙齒保健—從齒開始 />  出生六個月後會長出第1顆乳牙，然後陸續萌牙至二歲左右發育完成20顆乳牙，即為乳牙齒列，六歲前細路就系使用呢套牙齒。當細路越長越大，身體嘅每個器官也跟著變大。可系佢嘅乳牙並唔會隨著身體長大。為了配合身體嘅需要，細路長到約六歲時，新嘅牙開始漸漸長出嚟，長到一個程度，新牙把乳牙排擠出局，呢就系我哋常講嘅「換牙」，此後乳牙開始依依唔舍嘅一顆顆掉落。
  https://www.nearhk.com/uploads/allimg/170904/1-1FZ4114Z4Z3.jpg" style="width: 500px; height: 375px;" />  牙齒唔只系人體消化系統嘅重要悍將，也系我哋出聲和發音不可少嘅器官之一。細路長牙之後，才會開始練習發音講話，細路越長越大牙齒也逐漸長全，發音也更清晰和正確。呢就系俗語講嘅「牙牙學語」！  每個牙都有佢自己固定嘅位置。因此只要有一顆牙站不正且占據別人嘅地盤，其佢相近嘅牙都會被牽連。如果乳牙太早脫落，新嘅恆齒還冇長出嚟，旁邊先長出嚟嘅恆齒就會傾斜和郁過嚟。相反嘅，乳牙如果太晚脫落，會使該長出嚟嘅恆牙冇自己嘅坐位，只好或左、或右嘅斜著亂長了。牙齒嘅生長和排列還要受周圍嘅鄰居譬如嘴巴、下巴、鼻哥、顴骨等影響。所以牙齒生長和排列未必個個盡如人意嘅整齊美觀。  許多父母認為孩子嘅乳牙遲早都要脫落換成恆牙，因此壞了也補打緊。乳牙蛀牙時一定要補蛀牙，否則會影響日後恆齒嘅健康，呢好像盆栽嘅土壤有一堆細菌，讓花草漸漸死掉，你冇做除菌嘅工作，繼續種植新嘅花草，喺後天失調嘅狀況下，要永久齒茁壯，系很困難嘅。  牙齒系我哋與人傾偈時，很容意被注意到嘅「外觀」之一。所以佢嘅清潔和整齊不僅關系消化、發聲等生理嘅功能，佢也有助於健全心理嘅功能。所以我哋要很認真嘅保護和善待牙齒，除咗要做好個人嘅清潔衛生之外，還要定期去睇牙醫，及早發現並處理問題。所以要很認真嘅善待牙齒，佢哋就會很樂意為我哋服務一輩子。  請和我哋一起關心你嘅寶貝，定時帶你嘅細路做牙齒口腔檢查，做好兒童牙齒保健
  
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