口腔健康 全身健康|牙周疾病与全身系统疾病

2017-10-06 李柠 杨丕山 中国医学论坛报今日口腔

动脉硬化症,其常见并发症——冠状动脉血栓和急性心肌梗死是发达国家常见的死亡病因。越来越多的研究表明,感染引起的炎症与动脉硬化症、冠心病、心内膜炎、急性心肌梗死等心脑血管疾病发病风险增高有关。


作者: 李柠   杨丕山 
山东大学口腔医院

牙周病与心脑血管疾病

动脉硬化症,其常见并发症——冠状动脉血栓和急性心肌梗死是发达国家常见的死亡病因。越来越多的研究表明,感染引起的炎症与动脉硬化症、冠心病、心内膜炎、急性心肌梗死等心脑血管疾病发病风险增高有关。

牙周炎是冠心病等心脑血管疾病的重要危险因素,可增加其发病风险。许多试验和研究证实,牙周病原菌可以导致动脉硬化,并且在冠状动脉斑块、颈动脉斑块和血栓中被检测出来。亦有研究指出,对同时患有冠心病等心脑血管疾病的牙周炎患者进行牙周治疗,有助于降低其心血管疾病发病风险。

心血管疾病对牙周病的发生和发展亦有影响。冠心病患者的牙周病发病率较高,病变程度也较严重。高血压是心脑血管疾病的高危诱发因素。高血压患者在牙周治疗过程中有出血较多的风险,同时其服用的钙离子通道阻滞剂(如硝苯地平)等药物会引起部分牙周病患者的牙龈异常增生,因此对于高血压患者的牙周治疗应当更加谨慎,应在患者血压控制良好且平稳的基础上进行牙周疾病治疗,并酌情更换非钙离子通道阻滞剂降压药。

牙周病与糖尿病

糖尿病是一种多因素共同引起的以高血糖为主要特征的慢性代谢性疾病,以Ⅱ型多见。流行病学调查显示,现在全球糖尿病患者约有5~6亿,其中印度和中国更被世界卫生组织列为未来糖尿病患病人数增加最多的国家。

一方面,Ⅱ型糖尿病与牙周炎的的发生以及病情的严重程度有着密切关系,被视为糖尿病的第6并发症。另一方面,牙周炎引起机体产生免疫炎性反应,更易导致胰岛素抵抗。因此,牙周炎的存在能增加糖尿病并发症的危险,而高血糖也会增加机体对牙周致病菌感染的易感性。
对于糖尿病患者的牙周治疗,应遵循在控制血糖的基础上,多次、短时、基础治疗为主的治疗原则。

牙周病与早产低出生体重儿

牙周感染可导致妊娠并发症的学说始于20世纪90年代,Offenbacher等提出妊娠妇女的牙周炎可作为体内的细菌来源,局部大量分泌的炎性因子可随血液循环进入孕妇的胎儿胎盘单位,引起妊娠并发症。他们以母性豚鼠作为诱导性牙周炎模型,发现牙周炎可致胎儿低出生体重的发生。孕期牙周炎中的牙周致病菌可激发宿主免疫反应,并在新生儿体内存在牙周病原菌——牙龈卟啉单胞菌和福氏赛杆菌的免疫球蛋白IgM,还会增加胎儿生长不良、妊娠性高血压、子痫和新生儿死亡的危险。对患牙周炎的妊娠或备孕妇女进行包括洁治、刮治和根面平整的牙周基础治疗以减少早产的危险具有重要意义。

牙周病与肥胖

众所周知,吸烟对牙周炎和高血压均有影响,烟草中的有害物质促使微循环障碍,使血压升高,同时微循环障碍又可导致或加重牙周炎的发生。而肥胖是仅次于吸烟的牙周炎的第二大危险因素,同时也是高血压的重要危险因素。

除高血压外,肥胖还是多种慢性疾病,包括Ⅱ型糖尿病、血脂异常和冠心病等的危险因素。
世界卫生组织的调查结果显示,到2015年,全球超重和肥胖人数将达15亿,如何健康且有效地控制体重成为当今研究的热点。

近来的研究还表明,肥胖与口腔疾病,尤其是牙周病的发病呈现高度相关性。肥胖患者体内堆积的脂肪组织可分泌大量的脂肪因子,包括TNF-α、IL-6、CRP和瘦素等,可以直接介导牙周损害。该研究还发现:肥胖者患牙周炎时,附着丧失量更大,并且随着体质指数(BMI)的增加,牙周炎患病率升高。Al-Zahrani等通过数据分析证实,通过规律性锻炼以保持正常体重(BMI为18.5~24.9 kg/m2),并按照科学推荐饮食者,发生牙周炎的可能性较之不进行锻炼的肥胖者会降低40%左右。

牙周病与阿尔茨海默病

阿尔茨海默病又称老年痴呆症。最近的流行病学调查显示在中国大约有600多万老年痴呆症患者。它的病因和致病机制尚未明确,现在多数学者认为是中枢神经系统炎症,而外周感染在其中发挥了重要作用。

牙周炎是一种常见的、持续性的外周感染,与革兰阴性菌、厌氧菌等有关,能够在宿主中表现出局部和全身感染。有研究表明,阿尔茨海默病患者血浆中的TNF-α和抗牙周细菌的抗体数量较正常人偏高,牙周炎可能影响阿尔茨海默病的发生和发展。

牙周病与骨质疏松

骨质疏松症是多因素导致的骨密度和骨质量下降而引起的全身性骨病,分为原发性和继发性两大类,前者又分为绝经后骨质疏松症(Ⅰ型)、老年性骨质疏松症(Ⅱ型)和特发性骨质疏松。其中,绝经后骨质疏松主要是由绝经后雌激素减少所致,属于中老年女性的一种进行性退行性病变。流行病学研究显示,慢性牙周炎与骨质疏松相关,尤其与绝经期妇女的关系更紧密,系统性骨质疏松造成的普遍性骨丧失可加速牙槽骨吸收。

多项研究已表明,雌激素受体调节剂雷诺昔芬、经典补肾方剂左归丸等药物对更年期骨质疏松合并牙周炎患者有一定疗效,在控制骨质疏松症状的同时,也改善了牙周炎症状。

牙周病与呼吸及消化系统疾病

口腔是消化道和呼吸道的共同起始部位,因此,口腔内的细菌极易侵犯呼吸及消化系统。流行病学研究显示,慢性阻塞性肺气肿、慢性支气管炎、慢性胃炎、胃溃疡等疾病均与慢性牙周炎密切相关。口腔微生物,尤其是牙周袋内的厌氧菌可能增加了消化、呼吸系统器官感染的风险。

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    2017-10-08 方舒

    学习

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    2017-10-07 惠映实验室

    学习了.谢谢.

    0

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    2017-10-06 changjiu

    学习了.谢谢

    0

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