scholarly journals Dental Plaque Microbial Resistomes of Periodontal Health and Disease and Their Changes after Scaling and Root Planing Therapy

mSphere ◽  
2021 ◽  
Author(s):  
Yutong Kang ◽  
Bianjin Sun ◽  
Yiju Chen ◽  
Yongliang Lou ◽  
Meiqin Zheng ◽  
...  

The emergence and development of resistance to antibiotics in periodontal pathogens have affected the success rate of treatment for periodontitis. The development of new antibacterial strategies is urgently needed to help control and treat periodontal disease, and dental plaque microbiome studies offer a promising new angle of attack.

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Abdulrahman Al-Alimi ◽  
Tara Taiyeb-Ali ◽  
Nasruddin Jaafar ◽  
Nezar Noor Al-hebshi

Aim. Qat chewing has been reported to induce subgingival microbial shifts suggestive of prebiotic-like properties. The objective here was to assess the effect of qat chewing on a panel of classical and new putative periopathogens in health and periodontitis.Materials and Methods. 40 qat chewers and 40 nonchewers, equally stratified by periodontal health status, were recruited. Taqman, real-time PCR was used to quantify total bacteria,Porphyromonas gingivalis,Tannerella forsythia,Treponema denticola,Parvimonas micra,Filifactor alocis, Synergistetes, and TM7s in pooled subgingival biofilm samples. Differences in microbial parameters between the study groups were analysed using ordinal regression.Results. In health, the qat chewers harboured significantly lower relative counts ofP. gingivalis,T. forsythia, Synergistetes, and TM7s after adjustment for multiple comparisons (P≤0.007). At nominal significance level, they also carried lower counts of TM7s andP. micra(P≤0.05). In periodontitis, the chewers had lower counts of all taxa; however, onlyT. denticolawithstood correction for multiple comparisons (P≤0.0063).Conclusions. Qat chewing is associated with lower proportions of periopathogens, particularly in subjects with healthy periodontium, which supports previous reports of its prebiotic-like properties. This potentially beneficial biological effect can be exploited by attempting to isolate the active fraction.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Denis Bourgeois ◽  
Manuel Bravo ◽  
Juan-Carlos Llodra ◽  
Camille Inquimbert ◽  
Stéphane Viennot ◽  
...  

Abstract Periodontal disease is clearly correlated with systemic disease. The presence of periodontal pathogens in interdental spaces in young, healthy adults is a strong indicator of the need to introduce daily interdental prophylaxis. Twenty-five subjects (aged 18–35 years), diagnosticated clinically as periodontally healthy, were enrolled in this study. One hundred interdental sites were included. Among these sites, 50 “test” sites were cleaned daily with calibrated interdental brushes (IDBs), whereas the other 50 sites were not cleaned and considered “controls”. The interdental biofilm at these interdental sites was collected at the beginning of the study (basal) and at 1 week, 2 weeks, 3 weeks, 4 weeks, and 3 months. Real-time polymerase chain reaction (PCR) methodology was used to quantify (i) 19 periodontal bacteria, including Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia, and (ii) total bacteria. In the test sites, the quantity of total bacteria decreased over time with the use of IDBs. The bacteria from the red and orange Socransky complexes, which are associated with periodontal disease, significantly decreased in the test sites but not in the control sites. Bacteria from the yellow, and purple Socransky complexes, which are associated with periodontal health, increased significantly in both groups whereas bacteria from the blue Socransky complex increased significantly only in the test sites. Furthermore, at basal, 66% of test sites and 68% of control sites bled during interdental brushing. These percentages decreased by 85% in 3 months for the test sites and by 27% in the control sites. In conclusion, the daily use of calibrated IDBs can reduce periodontal pathogens, reestablish symbiotic microbiota and, decrease interdental inflammation in interdental sites of healthy young adults.


1993 ◽  
Vol 8 (1) ◽  
pp. 5-15 ◽  
Author(s):  
W. F. Liljemark ◽  
C. G. Bloomquist ◽  
C. L. Bandt ◽  
B. L. Pihlstrom ◽  
J. E. Hinrichs ◽  
...  

2010 ◽  
Vol 4 (Spl) ◽  
pp. 35-37
Author(s):  
Vivek Gupta ◽  
Bhavana Gupta

ABSTRACT Probiotics are live micro-organisms that when administered in adequate amounts confer health benefits upon the host. Although a lot of work has been done regarding the effects of probiotic applications on systemic health particularly gastro-intestinal, the impact of probiotics on oral health is relatively new with lots of research going on; the area of probiotics and periodontal disease is still in its infancy. The present article summarizes the role of probiotics in periodontal health and disease and its effectiveness in periodontal therapy.


1979 ◽  
Vol 9 (5) ◽  
pp. 579-583
Author(s):  
M Weiner ◽  
M G Newman ◽  
A Horikoshi ◽  
V Grinenko

A simplified method for processing dental plaque samples was devised and compared to previously used methods. Analysis of 36 nonstandardized subgingival plaque samples from various states of periodontal health and disease and 12 standardized supragingival plaque samples demonstrated that there was no significant difference between the recovery offered by the two techniques. Comparable recovery, increased convenience, and adaptation to the clinical setting suggests that implementation of this simplified technique may be of great value.


mBio ◽  
2014 ◽  
Vol 5 (3) ◽  
Author(s):  
Melissa Ly ◽  
Shira R. Abeles ◽  
Tobias K. Boehm ◽  
Refugio Robles-Sikisaka ◽  
Mayuri Naidu ◽  
...  

ABSTRACTThe human oral cavity is home to a large and diverse community of viruses that have yet to be characterized in patients with periodontal disease. We recruited and sampled saliva and oral biofilm from a cohort of humans either periodontally healthy or with mild or significant periodontal disease to discern whether there are differences in viral communities that reflect their oral health status. We found communities of viruses inhabiting saliva and the subgingival and supragingival biofilms of each subject that were composed largely of bacteriophage. While there were homologous viruses common to different subjects and biogeographic sites, for most of the subjects, virome compositions were significantly associated with the oral sites from which they were derived. The largest distinctions between virome compositions were found when comparing the subgingival and supragingival biofilms to those of planktonic saliva. Differences in virome composition were significantly associated with oral health status for both subgingival and supragingival biofilm viruses but not for salivary viruses. Among the differences identified in virome compositions was a significant expansion of myoviruses in subgingival biofilm, suggesting that periodontal disease favors lytic phage. We also characterized the bacterial communities in each subject at each biogeographic site by using the V3 hypervariable segment of the 16S rRNA and did not identify distinctions between oral health and disease similar to those found in viral communities. The significantly altered ecology of viruses of oral biofilm in subjects with periodontal disease compared to that of relatively periodontally healthy ones suggests that viruses may serve as useful indicators of oral health status.IMPORTANCELittle is known about the role or the constituents of viruses as members of the human microbiome. We investigated the composition of human oral viral communities in a group of relatively periodontally healthy subjects or significant periodontitis to determine whether health status may be associated with differences in viruses. We found that most of the viruses present were predators of bacteria. The viruses inhabiting dental plaque were significantly different on the basis of oral health status, while those present in saliva were not. Dental plaque viruses in periodontitis were predicted to be significantly more likely to kill their bacterial hosts than those found in healthy mouths. Because oral diseases such as periodontitis have been shown to have altered bacterial communities, we believe that viruses and their role as drivers of ecosystem diversity are important contributors to the human oral microbiome in health and disease states.


Author(s):  
Sridevi Sivarama Krishnan ◽  
Vignesh Vikram ◽  
Bhagavatham Meenakshi ◽  
Chitraa R Chandran

Introduction: Gingival Crevicular Fluid (GCF) has been referred to as a promising medium for detection of markers for periodontal disease activity. Analysis of GCF shows minute changes in biomarker levels well before the onset of clinical signs and symptoms; which helps to even predict a person’s predisposition towards periodontal disease occurrence. The elemental analysis of human blood serum is noteworthy in routine clinical practice as well as in medical research. Aim: This study was done to determine the changes in calcium and iron levels in GCF and serum in human subjects with normal periodontal health and those with disease. Materials and Methods: This was a cross-sectional study conducted from March 2019 to December 2019. Eight study subjects (4 healthy subjects and 4 periodontitis cases) were selected from the patients reporting to the Department of Periodontics at Tagore Dental College and Hospital, Chennai. The subjects were chosen based on inclusion and exclusion criteria and all patients were subjected to a clinical examination wherein the Probing Depth (PD) and Clinical Attachment Level (CAL) were recorded by a single examiner using William’s Periodontal probe. The GCF samples were collected by Capillary Tubing method. Blood was collected by venipuncture and centrifuged to provide serum samples. Dual viewing Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) was used to estimate Calcium and Iron in GCF and serum. SPSS version 21.0 was used for statistical analysis. Mann Whitney U test was used for comparing the groups. p-value less than 0.05 was considered statistically significant. Results: Serum iron levels were significantly less in periodontitis patients than healthy subjects (p-value 0.043). GCF iron level (p-value 0.386), GCF calcium level (p-value 0.149) and serum calcium level (p-value 0.564) did not show any major variation among subjects with normal periodontal health and those with disease. Conclusion: The findings of this study showed that iron and calcium are present in GCF and serum samples of healthy persons and patients with chronic periodontitis which can be detected using ICP-OES. A significant difference in serum iron levels between health and disease could indicate a patient’s predisposition towards developing periodontitis. Calcium levels in GCF and serum do not point towards periodontal disease activity.


2017 ◽  
Vol 18 (11) ◽  
pp. 1085-1089 ◽  
Author(s):  
Monica J Mahajani ◽  
Varsha A Jadhao ◽  
Pooja S Wankhade ◽  
Emmanuel Samson ◽  
Vishwas D Acharya ◽  
...  

ABSTRACT Aim The incidence and progression of the periodontal disease depend on periodontal microflora and the multifaceted response of the host, and these interactions are mediated by cytokines and chemokines. Interleukin-18 (IL-18) is a proinflammatory cytokine of the IL-1 superfamily. The aim of the present study was the assessment of the periodontal therapy in IL-18 level in periodontal disease and health. Materials and methods Based on clinical attachment loss (CAL), probing pocket depth (PPD), gingival index (GI), and plaque index (PI) patients were divided into three groups: Group I with healthy patients, group II with chronic periodontitis, and group III with posttreatment patients having periodontitis. Results Mean PI, PPD, CAL, and gingival crevicular fluid (GCF) volume were significantly higher in groups II and III compared with group I. However, there were no significant differences between GI in groups I, II, and III. The total amount of IL-18 in GCF was significantly higher in group II when compared with groups I and III (p < 0.05). Conclusion The present study confirmed that the IL-18 level in GCF was lower in healthy patients, higher in periodontally involved patients, and reduced at baseline, 3 and 6 weeks after nonsurgical periodontal therapy. Clinical significance The IL-18 might be hypothetically beneficial in distinguishing health from disease and monitoring periodontal disease activity. How to cite this article Mahajani MJ, Jadhao VA, Wankhade PS, Samson E, Acharya VD, Tekale PD. Effect of Periodontal Therapy on Crevicular Fluid Interleukin-18 Level in Periodontal Health and Disease in Central Maharashtra (India) Population. J Contemp Dent Pract 2017;18(11):1085-1089.


2013 ◽  
Vol 18 (1) ◽  
pp. 3-5
Author(s):  
Alberto Consolaro

The occurrence of chronic inflammatory periodontal disease due to dental plaque in adults over 30 years of age was noticed in 47.2% of the 3,742 subjects studied, representing a 64.7 million people population in the 50 states of the U.S. and the District of Columbia. The methods used by the authors were uniquely precise and the results brought us to great insight on the correlation between orthodontic treatment and periodontal health, which is described below.


1997 ◽  
Vol 8 (4) ◽  
pp. 437-460 ◽  
Author(s):  
Suzanne E. Barbour ◽  
Keisuke Nakashima ◽  
Ji-Bo Zhang ◽  
Srilatha Tangada ◽  
Chin-Lo Hahn ◽  
...  

This review summarizes the current data on the effects of smoking and tobacco on the immune system and its potential impact on periodontal health. Smokers are 2.5-6 times more likely to develop periodontal disease than non-smokers, and there is evidence for a direct correlation between the number of cigarettes smoked and the risk of developing disease. Tobacco users also tend to exhibit increased severity of periodontal disease. Direct correlations between tobacco use and increased attachment loss and pocket depth and reduced bone crest height have been reported. Although the correlation between tobacco use and periodontal disease is quite strong, the role of tobacco in the pathogenesis of periodontal disease is uncertain. Recent studies indicate that one potential mechanism is that tobacco use exacerbates periodontal disease because it alters the immune response to periodontal pathogens. Indeed, smokers exhibit increased numbers of peripheral blood mononuclear phagocytes which appear to be functionally compromised. Inadequate phagocyte activity could reduce the clearance of pathogens from the oral cavity and thereby facilitate the development of periodontal disease Tobacco-exposed B- and T-lymphocytes exhibit reduced proliferative capacities which could limit the production of protective immunoglobulins against oral pathogens. The risk factors for periodontal disease can be broadly classified as genetic, environmental, host-response factors, and host-related factors such as age. Tobacco, an environmental factor, undermines the host response and may facilitate the development and progression of periodontal disease. This review highlights the inter-relatedness of two of the risk factors associated with periodontal disease.


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