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首页> 美国卫生研究院文献>The Journal of the Indian Prosthodontic Society >Evaluation of Subgingival Microflora in All Ceramic Restorations with Subgingival Heavy Chamfer Finish Lines
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Evaluation of Subgingival Microflora in All Ceramic Restorations with Subgingival Heavy Chamfer Finish Lines

机译：用牙龈下大倒角精整线评估所有陶瓷修复体中的牙龈下菌群

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Microbial colonization in the gingival sulci of abutment teeth receiving all ceramic retainers with subgingival margins need to be studied to assess the prognosis of periodontal health, which determine the eventual success of fixed partial dentures. This prospective observational study was done to evaluate the quantitative alteration in the microbial flora in the gingival sulci of abutment teeth adjacent to the edentulous space prior and after receiving all ceramic retainers over varying time intervals of 1 week, 1 month and 2 months respectively. Twenty, healthy partially edentulous patients, aged 20–50 years with single missing central incisor were selected for this prospective observational study and their microbial samples were collected from the gingival sulci of abutments adjacent to edentulous space with sterile paper points and cultured and the estimated values for microflora served as controls. The same abutments were prepared to receive all ceramic retainers with subgingival heavy chamfer marginal finish lines. The patients were recalled after 1 week, 1 month, 2 months intervals during which the collected subgingival microbial samples were cultured and the corresponding quantitative microbial alteration in the restored gingival sulci was recorded. The obtained data was statistically analysed using the student t test and repeated analysis of variance test. The results of the study inferred student t test expressed a statistically significant (p < 0.001) progressive increase in gingival sulcular microbial colonisation in the abutment teeth before [M = 2.52 ± SD 1.21(106) CFU/ml] and after receiving all ceramic retainers over varying time intervals of 1 week [M = 3.25 ± SD 1.21(106) CFU/ml], 1 month [M = 4.64 ± SD 1.13(106) CFU/ml] and 2 months [M = 4.75 ± SD 1.16(106) CFU/ml] respectively. The result of repeated analysis of variance test inferred that there was a statistically significant difference (p < 0.001) in the subgingival microfloral count between the pre operative and post operative samples at 1 week, 1 month and 2 months. Subgingivally placed all-ceramic retainers with heavy chamfer finish lines in the abutment teeth demonstrated a statistically significant increase in sulcular microbial colonization over varying time intervals of 1 week, 1 month and 2 months respectively and this may affect periodontal health of abutment teeth progressively.
机译：需要研究接受所有带有牙龈下边缘的陶瓷固定器的基台牙龈沟中的微生物定植，以评估牙周健康的预后，从而确定固定局部义齿的最终成功。进行这项前瞻性观察性研究以评估在无瓷牙固定器之前和之后，分别在1周，1个月和2个月的不同时间间隔内，在与无牙间隙相邻的基牙的牙龈沟中微生物菌群的数量变化。选择20名20-50岁，部分缺牙的健康部分缺牙患者，进行一次中央门牙缺失，进行这项前瞻性观察研究，并从牙龈间隙附近的基牙龈沟收集微生物样本，并用无菌纸尖进行培养，并进行估计值用于微生物区系作为对照。准备了相同的基台，以容纳所有带有龈下沉重倒角边缘精加工线的陶瓷固定器。在每隔1周，1个月，2个月的时间间隔对患者进行召回，在此期间对收集的龈下微生物样品进行培养，并记录恢复的龈沟中相应的定量微生物变化。使用学生t检验和方差检验的重复分析对获得的数据进行统计分析。研究推断学生t检验的结果表明，在[M = 2.52±SD 1.21（10 6 ））CFU /之前，基牙的龈沟微生物定植具有统计学显着性（p <0.001）毫升]，并在1周[M = 3.25±SD 1.21（10 6 ）CFU / ml]的不同时间间隔内接受所有陶瓷固定器后，1个月[M = 4.64±SD 1.13（10 < sup> 6 ）CFU / ml]和2个月[M = 4.75±SD 1.16（10 6 ）CFU / ml]。方差测试的重复分析结果表明，术前和术后1周，1个月和2个月样本之间的龈下菌群计数存在统计学上的显着差异（p <0.001）。在基台牙下龈下放置的全陶瓷固定器具有较深的倒角终点线，表明在分别于1周，1个月和2个月的不同时间间隔内，龈沟微生物定植显着增加，这可能会逐渐影响基台牙的牙周健康。

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