The socket is lined on the inside by a periodontal ligament.

周韧带排列整齐排列。

In pregnancy, the oral microbiota goes through some important changes which lead to colonisation of various microorganisms especially periodontal pathogens that may be a risk for the health of the pregnant woman.

怀孕期间，口腔微生物群经历许多重要化；这些化导致多微生物的定植，尤其是周致病菌的定植，可能威胁到孕妇健康。

These changes may increase pathogenic organisms or their activity causing a series of oral infectious diseases such as dental caries or periodontal diseases.

这些可能增加致病微生物的数量或提高其活性，从而导致诸如龋齿、周疾病等一系列口腔感染性疾病。

The root is covered by cementum, which is a bonelike substance that the periodontal ligament's fibers attach to.

包裹着根的是骨质，是一骨样物质，也是周韧带纤维连接的部分。

This alteration can disrupt the bacterial equilibrium in the oral cavity by increasing harmful bacteria and decreasing the beneficial ones, thus leading to a series of oral infectious diseases such as dental caries, or periodontal diseases.

这增加有害菌、减少有益菌，从而破坏口腔中的细菌平衡，导致龋齿、周疾病等一系列口腔感染性疾病的发生。

It will increase your risk, not only for cavities, but periodontal rot.

它增加你的风险，不仅是龋齿，还有周腐烂。

Animals as adults commonly get periodontal disease, so we really should be brushing their teeth, and more pet owners are starting to do this.

成年动物经常得周病， 所以我们真的应该给它们刷，越来越多的宠物主人开始这样做。

You have something much worse: periodontal disease.

你有更严重的问题：周病。

These include stem cells from human exfoliated deciduousteeth (SHED), stem cells from apical papilla (SCAP), dental follicleprecursor cells (DFPCs), periodontal ligament stem cells (PDLSCs), and gingiva-derived mesenchymal stem cells.

这些包括来自人类脱落的脱落的干细胞(SHED), 来自顶乳头(SCAP)的干细胞, 囊前体细胞(DFPC), 周韧带干细胞(PDLSCs)和龈来源的间充质干细胞。