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Sam Jain 医生的种植疑难解答:Summers 内提升中的硫酸钙

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病史是种植规划的一部分

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Sam Jain 医生的种植疑难解答:Summers 内提升中的硫酸钙

一个从手术室里来的常见植骨问题,直说答案:为什么单用硫酸钙很少撑得住上颌窦内提升,以及该改用什么。

发布于 2019年4月5日 · 更新于 2026年7月9日 · 内容有效至 2026年8月6日

撰写并进行医学审阅:Dr. Sam Jain, DMD, MSDr. Arpana Gupta, DDS, MDS · 我们如何撰写和审阅内容

Sam Jain 医生在咨询中
病史是种植规划的一部分

一段话的答案

这个问题在临床论坛上、在我们自己的读书会上一直被提起:能不能在 Summers 骨凿式上颌窦内提升里填入硫酸钙,来代替标准的植骨材料?简短的答案,按 Sam Jain 医生所见并有文献支持:单独使用时,通常不行。硫酸钙吸收得太快,撑不住上颌窦底等新骨形成。它往往在大约一个月内就消失,而那远早于植骨区组织化成任何能长期支撑种植体根尖的东西。

Summers 内提升依赖植骨材料充当一个液压塞。您敲击骨凿,自体骨加植骨材料的那团东西把窦膜轻轻顶起,而这些材料必须待得足够久,才能把窦膜「撑成帐篷」,并给新骨一个可以长进去的支架。硫酸钙是一种不错的可吸收材料,但它缺少独自完成这项工作所需的体量和时间。当它过早溶解,撑起的空间可能塌陷,您赢得的高度也随之而去。

这并不意味着硫酸钙没用。它作为植骨黏合剂、屏障,以及新骨可以沉积其上的钙离子来源,都有真实的作用。微妙之处在于怎么用、按什么比例混、用在哪种病例上。这部分值得花几段来讲。

一位戴黑色帽子、面带微笑的患者在诊所里
Center for Implant Dentistry 的真实患者

为什么硫酸钙在能撑住高度之前就吸收掉了

植骨材料在很大程度上是按周转速度来挑的。自体骨是生物学上的金标准,因为它同时具有成骨性、骨传导性和骨诱导性,但它带来供区创伤,吸收也可能不可预测。同种异体骨和异种骨在时间轴上更慢;牛源异种骨在上颌窦手术里尤其被看重,正是因为它几乎不吸收,能维持体积多年。β-磷酸三钙保持增量体积的时间也明显长于硫酸钙。硫酸钙处在这个谱系的快速一端。

在经牙槽嵴顶的 Summers 入路里,吸收速度就是全部。您是通过一个小的骨窗操作,入路有限,还要求植骨材料在以月而非以周计的愈合期里把窦膜一直撑着。一种六周就基本没了的材料,单靠自己根本跨不过这个缺口。它老实说也是一种对技术很敏感的材料:如果窦膜下有出血,未凝固的硫酸钙颗粒可能不会按您希望的方式固化,结果就变得不可预测。对许多术者来说,这份不确定已经足以让他们改选更致密的东西。

还有一个限制值得直说。硫酸钙有骨传导性但没有骨诱导性,也就是说它给骨提供了一个可以沿着生长的表面,却不会自行发出形成新骨的信号。把这一点和快速吸收放在一起,您得到的就是一种能帮上忙、但不是上颌窦增量通常所需的承力支架的材料。

Jain 医生会改用什么,以及硫酸钙在哪里仍有价值

对一次可预期的经牙槽嵴顶或侧壁上颌窦提升来说,主力是吸收缓慢的异种骨或同种异体骨,常常再用 β-TCP 扩充,如今还越来越多地加上患者自己的 L-PRF 或浓缩生长因子,以加快血管长入。这些材料能把空间撑住足够久,让真正的骨组织化。硫酸钙发光的地方,是作为成分而不是整份植骨材料:与 β-TCP 或同种异体骨混合时,它可以充当把颗粒黏在一起的黏合剂,带来轻度的抑菌作用,并提供钙离子和一个可供重新沉积的基质,从而可能推动分化。这样用,它是在扩充和改进一份植骨材料,而不是试图成为那份植骨材料。

病例选择和材料选择同样重要。骨凿技术通常需要上颌窦下方有相当数量的剩余牙槽嵴,常被引用的数值是大约 5 mm 或以上,才能让种植体获得初期稳定性。当骨比这更少,或者窦底解剖不利时,用任何材料硬做经牙槽嵴顶提升都是错误的选择。这时候,一次正规的侧壁开窗上颌窦提升加即刻种植,或者分阶段的植骨方案,会给出可预期得多的结果。而在真正萎缩的上颌后部,反复做窦腔植骨都失败的地方,颧骨种植体可以在完全不碰窦底的情况下把牙锚住。

我们诊所的构造带来一个不张扬的优势:因为 Sam Jain 医生和 Arpana Gupta 医生亲自规划、植入并完成每一个病例,所以决定用什么植骨材料的,正是读那张免费三维锥形束CT、并切削最终牙齿的同一个人。我们不会把一份植骨材料交给一位飞来的医生,然后指望上颌窦扛得住。这种连续性,很大程度上正是 Center for Implant Dentistry 处理更困难的上颌后部病例的方式,也包括挽救别处失败的种植体和植骨

带基台和牙冠的单颗种植牙模型
存活率衡量的是种植体本身;成功率衡量的是它周围的一切

这件事对患者意味着什么

如果您是一位患者,因为牙医提到了上颌窦提升才读到这里,这是它的大白话版本。您的上颌后牙就坐在上颌窦下面,而牙齿缺失之后那里的骨往往会变薄。为了在那里安全地植入种植体,我们有时会把窦膜提起来,在下方加入植骨材料,让高度够用。所选的材料要能待得足够久,让您自己的骨长进去——这正是像硫酸钙这样吸收很快的材料很少被单独使用的原因。

好消息是,规划得当的上颌窦提升是常规操作,而且在很多情况下与种植在同一次就诊完成。有了我们院内的三维影像与导航手术技术静脉镇静,多数患者在过程中是舒适的,也能很快回到正常生活,并有清晰的术后须知可循。植入健康植骨区的种植牙,长期存活率通常被报告在 95% 左右,不过您的医生会确认对您具体的骨和健康状况来说什么才是现实的。

如果之前的植骨或种植体没能保住,那也不是路的尽头。我们所做的工作里有很大一部分是第二意见和挽救。一次含三维扫描的免费咨询,是弄清经牙槽嵴顶提升、侧壁开窗植骨还是免植骨方案适合您解剖结构的最快方式。

本文属于患者教育内容,由 Dr. Sam Jain, DMD, MS 审阅,,不能替代检查。治疗建议仅在面诊和 3D 影像检查之后给出——首次就诊免费

还有疑问? 读者接下来常问的问题。

硫酸钙有可能用在上颌窦提升里吗?

可以,但一般是作为混合物的一部分,而不是整份植骨材料。它作为黏合剂或屏障、作为钙离子来源都很好用,并且常常与 β-TCP 或同种异体骨这类吸收更慢的材料合用。在 Summers 骨凿式提升里单独使用时,它通常在大约一个月内吸收,太快了,撑不住上颌窦底等新骨形成。

Summers 骨凿式上颌窦提升用什么植骨材料最好?

没有一种适用于所有病例的「最好」材料。为了可预期地维持高度,许多外科医生偏好吸收缓慢的异种骨或同种异体骨,有时用 β-TCP 和患者自己的富血小板纤维蛋白(L-PRF)扩充。正确的选择取决于您还剩多少骨、上颌窦的解剖,以及种植时机的安排,这些由您的外科医生通过三维扫描确认。

做骨凿式(经牙槽嵴顶)上颌窦提升,窦下需要多少骨?

作为一般指引,经牙槽嵴顶的骨凿入路在上颌窦下方剩余牙槽嵴高度大约 5 mm 或以上时效果最好,这有助于种植体获得初期稳定性。骨明显少于此时,侧壁开窗上颌窦提升、分阶段植骨,或在严重病例中使用颧骨种植体,往往更可预期。您的外科医生会在您的锥形束CT上测量这一点。

上颌窦提升之后,我要等几个月才能拿到牙吗?

不一定。在很多情况下,种植体与上颌窦提升在同一次就诊里植入,而我们院内的氧化锆切削机可以在大约 24 小时内做出单颗和多颗种植的最终定制牙,全口大约 72 小时。植骨量很大的位点可能需要先愈合一段时间,您的医生会根据您骨的情况确认。

从读者到患者

文章之外, 患者的真实评价

以下是我们在 Google 上最新的五星评价。评分和总数包含我们 Google 主页上的全部评价。

4.9来自我们 Google 主页上的 472 条评价
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