Progression of periodontal inflammation in adolescents is associated with increased number ofPorphyromonas gingivalis,Prevotella intermedia,Tannerella forsythensis, andFusobacterium nucleatum

2013 ◽  
Vol 24 (3) ◽  
pp. 226-233 ◽  
Author(s):  
Ning-Yan Yang ◽  
Quan Zhang ◽  
Jin-Lu Li ◽  
Sheng-Hui Yang ◽  
Qing Shi
Keyword(s):  
Prevotella Intermedia ◽  
Periodontal Inflammation ◽  
Tannerella Forsythensis

scholarly journals Clinical and microbiological effects of the initial periodontal therapy

2014 ◽  
Vol 142 (1-2) ◽  
pp. 10-16 ◽  
Author(s):  
Tanja Predin ◽  
Milanko Djuric ◽  
Jelena Mirnic ◽  
Ivana Gusic ◽  
Nadja Nikolic ◽  
...  
Keyword(s):  
Porphyromonas Gingivalis ◽  
Chronic Periodontitis ◽  
Statistical Significance ◽  
Aggregatibacter Actinomycetemcomitans ◽  
Initial Therapy ◽  
Primary Objective ◽  
Periodontal Therapy ◽  
Prevotella Intermedia ◽  
Pocket Depth ◽  
Tannerella Forsythensis

Introduction. Periodontitis is a destructive inflammatory disease of the tooth-supporting tissues, primarily caused by Gram-negative microorganisms. Thus, the primary objective of cause-related initial periodontal therapy is disruption and removal of the subgingival biofilm. Objective. The aim of this study was to evaluate the clinical and microbiological effects of the initial therapy in patients diagnosed with chronic periodontitis. Methods. Forty patients with chronic periodontitis were included in the study. As a part of the clinical assessment undertaken prior to the initial therapy, as well as one month and three months post-therapy, plaque index, gingival index, papilla bleeding index, probing pocket depth and clinical attachment level were recorded. Microbiological testing was performed prior to the initial therapy and three months after therapy. Polymerase chain reaction assays were used to determine the presence of Porphyromonas gingivalis, Tannerella forsythensis, Prevotella intermedia and Aggregatibacter actinomycetemcomitans. Results. All clinical parameters were significantly reduced after therapy. The prevalence of Aggregatibacter actinomycetemcomitans was reduced by 22.5%, which was a statistically significant decrease compared to the baseline. The prevalence of Porphyromonas gingivalis, Tannerella forsythensis and Prevotella intermedia tended to decrease after therapy; however, the difference did not reach statistical significance. Conclusion. The results of the present study demonstrated the beneficial effects of the initial periodontal therapy on both the clinical and microbiological parameters.

scholarly journals ESTIMATION OF THE COMPOSITION OF MICROBIOTES OF PERIIMPLANT FURROWS IN THE PROCESS OF OSTEOINTEGRATION OF DENTAL IMPLANTS

2019 ◽  
Vol 15 (3) ◽  
pp. 158-163 ◽  
Author(s):  
Тофик Махмудов ◽  
Tofik Mahmudov
Keyword(s):  
Polymerase Chain Reaction ◽  
Dental Implants ◽  
Treponema Denticola ◽  
Prevotella Intermedia ◽  
Chain Reaction ◽  
Implantation Sites ◽  
Polymerase Chain ◽  
Tannerella Forsythensis ◽  
Number Of Bacteria ◽  
Bacterial Mass

Background. The necessity of studying the microbiota of the oral cavity, as one of the main causes of complications after the installation of dental implants, is considered. In the dynamics of osseointegration of dental implants (1-6-12 months), a study was made of the species and quality composition of the microbiota of peri-implant and gingival furrows. Objectives ― to study the composition of microbiota in the gingival sulcus of an adjacent healthy tooth and the peri-implant sulcus of the implant in the process of osseointegration of dental implants. Methods. A microbiological study of the composition of the microbiota of the studied biotopes — the peri-implant sulcus and gingival sulcus of an adjacent healthy tooth in the process of osseointegration of dental implants in 83 patients was carried out. The total number of bacteria was detected by real-time polymerase chain reaction. Results. 1 month after the installation of dental implants and fixation of the Treponema denticola gingival former in the samples from the gingival sulcus of the tooth was 16.03 %, and the number of Tannerella forsythensis was 5.52 % higher than in the samples from the peri-implant sulcus. After 6 months, the total bacterial mass in the peri-implant sulcus was 12.7 % less. The amounts of Prevotella intermedia, Treponema denticola, Tannerella forsythensis and Porphyromorans gingivalis in the peri-implant groove decreased by 2.9, 6.1, 5.2 and 11.6 %, respectively. After 12 months, a statistically significant decrease in Porphyromorans gingivalis was observed 2.7 times (p <0.01) and 2.6 times (p <0.01), respectively, in the peri-implant and gingival sulcus. Conclusions. In the process of osseointegration of dental implants, the total bacterial mass (p <0.01), Porphyromorans gingivalis (p <0.01) decreased dynamically, statistically significantly, the number of Tannerella forsythensis increased (p <0.05). Also dynamically, but slightly, a decrease in Candida albicans was observed. After 12 months, an accumulation of Prevotella intermediaries was observed at the implantation sites.

scholarly journals Unculturable and culturable periodontal-related bacteria are associated with periodontal inflammation during pregnancy and with preterm low birth weight delivery

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Changchang Ye ◽  
Zhongyi Xia ◽  
Jing Tang ◽  
Thatawee Khemwong ◽  
Yvonne Kapila ◽  
...  
Keyword(s):  
Birth Weight ◽  
Low Birth Weight ◽  
Aggregatibacter Actinomycetemcomitans ◽  
Oral Microbiome ◽  
Treponema Denticola ◽  
Prevotella Intermedia ◽  
Periodontal Pathogens ◽  
Serum Samples ◽  
Periodontal Inflammation ◽  
Serum Igg

Abstract Recent studies revealed culturable periodontal keystone pathogens are associated with preterm low birth weight (PLBW). However, the oral microbiome is also comprised of hundreds of ‘culture-difficult’ or ‘not-yet-culturable’ bacterial species. To explore the potential role of unculturable and culturable periodontitis-related bacteria in preterm low birth weight (PLBW) delivery, we recruited 90 pregnant women in this prospective study. Periodontal parameters, including pocket probing depth, bleeding on probing, and clinical attachment level were recorded during the second trimester and following interviews on oral hygiene and lifestyle habits. Saliva and serum samples were also collected. After delivery, birth results were recorded. Real-time PCR analyses were performed to quantify the levels of periodontitis-related unculturable bacteria (Eubacterium saphenum, Fretibacterium sp. human oral taxon(HOT) 360, TM7 sp. HOT 356, and Rothia dentocariosa), and cultivable bacteria (Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, Fusobacterium nucleatum and Prevotella intermedia) in saliva samples. In addition, ELISA analyses were used to determine the IgG titres against periodontal pathogens in serum samples. Subjects were categorized into a Healthy group (H, n = 20) and periodontitis/gingivitis group (PG, n = 70) according to their periodontal status. The brushing duration was significantly lower in the PG group compared to the H group. Twenty-two of 90 subjects delivered PLBW infants. There was no significant difference in periodontal parameters and serum IgG levels for periodontal pathogens between PLBW and healthy delivery (HD) groups. However, ordinal logistic regression analysis revealed that a higher abundance of Treponema denticola, Prevotella intermedia, Fretibacterium sp. HOT360 and lower levels of Rothia dentocariosa were significantly associated with the presence of periodontal disease during pregnancy. Moreover, the amount of Eubacterium saphenum in saliva and serum IgG against Aggregatibacter actinomycetemcomitans were negatively correlated with PLBW. Taken together, unculturable periodontitis-associated bacteria may play an important role both in the presence of periodontal inflammation during pregnancy and subsequent PLBW.

Биофармацевтические исследования по выбору основы для стоматологического геля с экстрактом барбариса

2020 ◽  
pp. 50-54
Author(s):  
З. Хаджиева ◽  
С. Поройский ◽  
И. Фирсова ◽  
А. Струсовская ◽  
В. Бавлакова ◽  
...  
Keyword(s):  
Porphyromonas Gingivalis ◽  
Actinobacillus Actinomycetemcomitans ◽  
Prevotella Intermedia ◽  
Prevotella Nigrescens

Исследованы биофармацевтические свойства модельных гелевых композиций c экстрактом корня барбариса и использованием в качестве гелеобразователей метилцеллюлозы, натриевой соли карбоксиметилцеллюлозы, натриевой соли альгиновой кислоты и поливинилового спирта методами прямой диффузии в агаровый гель и диализа через полупроницаемую мембрану. Определены кинетические закономерности процесса и скорости набухания исследуемых гелевых основ. Показана целесообразность использования натриевой соли альгиновой кислоты для получения стоматологического геля с экстрактом корня барбариса, обладающего специфической бактериостатической активностью в отношении таких пародонтопатогенных микроорганизмов, как Porphyromonas gingivalis, Prevotella intermedia, Prevotella nigrescens и Actinobacillus actinomycetemcomitans, для профилактики и лечения воспалительных заболеваний пародонта.

Optimization of the terms of supportive periodontal therapy using photoactivated disinfection

2019 ◽  
Vol 24 (2) ◽  
pp. 121-126 ◽  
Author(s):  
V. G. Atrushkevich ◽  
L. Yu. Orekhova ◽  
O. O. Yanushevich ◽  
E. Yu. Sokolova ◽  
E. S. Loboda
Keyword(s):  
Chronic Periodontitis ◽  
Adjunctive Treatment ◽  
Control Group ◽  
Clinical Parameters ◽  
Ozone Therapy ◽  
Pocket Depth ◽  
Clinical Attachment Loss ◽  
Supportive Periodontal Therapy ◽  
Tannerella Forsythensis ◽  
Observation Period

Relevance: to indentify if periodontal treatment which is presented by photoactivated disinfection (PAD) adjunctively to scaling and root planing (SRP) yield better outcomes than ozone therapy as an adjunct to SRP in periodontitis.Materials and methods: we examined 57 (mean age 49,3 ± 1,02) patients with chronic periodontitis, divided into groups, SRP + PAD, SRP + ozone therapy and SRP alone. Subgingival plaque samples were subjected to DNA extraction and real time PCR amplifcation for detection Porphyromonas gingivalis (Pg), Prevotella intermedia (Pi), Tannerella forsythensis (Tf), Treponema denticola (Td), Aggregatibacter actinomycetemcomitans (Aa). The amount of periodontopathogens and clinical parameters including plaque index, clinical attachment loss, pocket depth, bleeding on probing were measured at baseline, after 40, 90 and 180 days.Results: the results in groups of PAD+SRP and ozone therapy+SRP showed an improvement in all clinical parameters PI, BOP, PD, CAL and the quantity of Pg, Td and Tf compared to the control group during an observation period.Conclusion: the results showed additional benefts from PAD and ozone therapy as an adjunctive treatment to SRP for patients of chronic periodontitis.

Clinical effectiveness of the composition of muramylpeptides from gram-negative bacteria in the treatment of severe chronic generalized periodontitis

2020 ◽  
pp. 24-29
Author(s):  
A.I. Grudyanov ◽  
E.V. Fomenko ◽  
O.V. Kalyuzhin
Keyword(s):  
Clinical Effectiveness ◽  
Main Group ◽  
Control Group ◽  
Gram Negative Bacteria ◽  
Periodontal Pathogens ◽  
Gram Negative ◽  
Periodontal Inflammation ◽  
Clinical Indices ◽  
Periodontal Indices

The effectiveness of the immunomodulator Polymuramil (PM) was determined in the treatment of 40 patients with severe chronic generalized periodontitis based on the dynamics of the values of periodontal indices and the content of periodontal pathogens in the periodontal pockets. Patients of the main group (20 people) were treated with professional hygiene (PGO) in combination with daily intramuscular PM for 5 days at a dose of 200 mcg. Patients of the control group (20 people) were performed only PGO. The effectiveness of treatment was evaluated based on the dynamics of the clinical indices of Muehlemann and PMA and the presence or absence of major periodontal pathogens in the periodontal pockets. Results: in patients of the main group, the phenomena of periodontal inflammation and the main periodontal pathogens were eliminated in a shorter time and to a greater extent in comparison with patients of the control group

Sign in / Sign up

Export Citation Format

Share Document