媽媽育兒網(wǎng)
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出牙時間有早有晚 寶寶幾個月長牙算正常

出處：媽媽育兒網(wǎng)日期：2017-04-10 14:19:14編輯：婧待花開

對于寶寶長牙的問題，生活中常見一些媽媽在做比較。同齡的寶寶中，有的寶寶出牙比較早，四個月后就有在慢慢長了；有的寶寶出牙比較晚，八個月才開始出牙；更有個別的寶寶，到一歲才出牙了。

這時，媽咪的疑問就會越來越多了，究竟寶寶幾個月長牙算正常，有沒有一個明確的指標(biāo)來作參考呢？為什么寶寶有出牙早晚的區(qū)別，導(dǎo)致這樣的原因又是什么了？小編深知媽咪的心，收集了相關(guān)資料，大家一起來看看吧：

寶寶幾個月長牙

寶寶幾個月長牙算正常

寶寶出生時，口腔內(nèi)沒有牙齒，正常的寶寶平均六個月大開始長牙，根據(jù)寶寶不同體質(zhì)，有的寶寶在4、5個月的時候已經(jīng)開始長牙，有的寶寶要在1歲左右才開始長牙，媽媽不用擔(dān)心，寶寶在一周歲長牙也是正常的。

寶寶長牙時，下頜中切牙開始萌出，以每個月增加一顆的速度長牙，大約一歲大（十二個月）有六顆牙。直到2歲半乳牙全部萌出，二十顆乳牙會都長全。

寶寶出生后1年內(nèi)（1.5個月-11個月）所有乳牙釉質(zhì)礦化完成，出生后2年內(nèi)（6個月-24個月）所有乳牙萌出。因此出生后1年內(nèi)，如果寶寶出現(xiàn)全身或局部紊亂疾病，將影響乳牙釉質(zhì)的發(fā)育，導(dǎo)致牙齒發(fā)育缺陷，易患齲齒。因此當(dāng)寶寶長牙開始時，媽媽要將寶寶的牙齒護(hù)理好，這樣才會讓寶寶牙齒更健康。

寶寶長牙特點(diǎn)

1、牙齒萌出有一定次序，萌出先后與牙胚發(fā)育的先后基本一致。

2、牙齒的萌出有一定的時間，但其生理范圍較寬，個人差異較大。晚萌6-12個月是正常的。

3、左右同名牙大致同時出齦。

4、下頜牙萌出略早于上頜的同名牙。

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