Alagl Adel S
Department of Preventive Dental Sciences, College of Dentistry, University of Dammam, Dammam, Saudi Arabia.
Saudi J Med Med Sci. 2016 May-Aug;4(2):98-103. doi: 10.4103/1658-631X.178323. Epub 2016 Mar 9.
Certain specific bacterial species from the subgingival biofilm have demonstrated etiological relevance in the initiation and progression of periodontitis. Among all the bacteria studied, three have shown the highest association with proximal caries and bone loss: (Fn), (Ca), and (Cr). Therefore, the relevance of having accurate microbiological diagnostic techniques for their identification and quantification is clearly justified.
To identify the bacterial pathogens with alveolar bone loss and proximal caries in primary dentition and their association with periodontal disease utilizing deoxyribonucleic acid (DNA) microbial probe testing.
Subgingival plaque samples were collected at baseline as well as at 3, 6, and 12 months later. After extracting DNA, Fn, Ca, Cr, , and several other periodontopathogens were determined by DNA microbial probe testing method.
Samples detecting a high bacterial load of Fn, Ca and Cr in children having proximal caries associated with periodontal disease compared to children having proximal caries without periodontal disease ( ≤ 0.01).
Results suggested that there was a relationship between microbial pathogens associated with proximal dental caries in the primary dentition and periodontal disease in children. In addition, DNA microbial probe testing technology clearly analyzed the different loads of periodontopathogens in children who had with proximal caries associated with bone loss and is useful in microbial diagnostics for patients in dental practices.
龈下生物膜中的某些特定细菌种类已在牙周炎的发生和发展中显示出病因学相关性。在所有研究的细菌中,有三种与邻面龋和骨质流失的关联性最高:具核梭杆菌(Fn)、放线菌属(Ca)和卷曲螺旋体(Cr)。因此,拥有准确的微生物诊断技术来鉴定和定量这些细菌的相关性是明确合理的。
利用脱氧核糖核酸(DNA)微生物探针检测法,鉴定乳牙列中伴有牙槽骨流失和邻面龋的细菌病原体及其与牙周疾病的关联。
在基线以及3个月、6个月和12个月后采集龈下菌斑样本。提取DNA后,通过DNA微生物探针检测法测定Fn、Ca、Cr、牙龈卟啉单胞菌、中间普氏菌和其他几种牙周病原体。
与无牙周疾病的邻面龋儿童相比,患有与牙周疾病相关的邻面龋的儿童样本中检测到较高细菌载量的Fn、Ca和Cr(P≤0.01)。
结果表明,乳牙列中与邻面龋相关的微生物病原体与儿童牙周疾病之间存在关联。此外,DNA微生物探针检测技术清晰地分析了伴有骨质流失的邻面龋儿童中不同牙周病原体的载量,对牙科诊所的患者微生物诊断很有用。