替牙期间耠特点为:①恒牙萌出初期上颌左右中切牙之间常有间隙;②前牙可有暂时性深覆
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/a6d3d76846d535ce.gif)
关系;③乳恒牙混合期常出现牙列拥挤现象;④建
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/79afd36afddb4daf.gif)
初期,上下颌第一恒磨牙的关系为远中替牙期间耠特点为:①恒牙萌出初期上颌左右中切牙之间常有间隙;②前牙可有暂时性深覆
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/3b139f4a753e31b7.gif)
关系;③乳恒牙混合期常出现牙列拥挤现象;④建
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/67e334ae4ebb6866.gif)
初期,上下颌第一恒磨牙的关系为远中替牙期间耠特点为:①恒牙萌出初期上颌左右中切牙之间常有间隙;②前牙可有暂时性深覆
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/856785baddd8bce0.gif)
关系;③乳恒牙混合期常出现牙列拥挤现象;④建
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/66cef20495c55652.gif)
初期,上下颌第一恒磨牙的关系为远中
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/2386ba91ec077439.gif)
,所以B、c、D、E均正确,故本题选A。考点:替牙期间
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/d5a3371d428d1421.gif)
特点,所以B、c、D、E均正确,故本题选A。考点:替牙期间
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/a2d230e43625be9e.gif)
特点,所以B、C、D、E均正确,故本题选A。考点:替牙期间
![](https://assets.51tk.com/images/a4036d27d4a2b8f8_img/f9a95b05456d1080.gif)
特点