scholarly journals Anti-Early Stage of Bacterial Recolonization Effect of Curcuma longa Extract as Photodynamic Adjunctive Treatment

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Doosadee Hormdee ◽  
Weena Rinsathorn ◽  
Subin Puasiri ◽  
Paiboon Jitprasertwong
Keyword(s):  
Early Stage ◽  
Curcuma Longa ◽  
Fusobacterium Nucleatum ◽  
Periodontal Pocket ◽  
Adjunctive Treatment ◽  
Photodynamic Treatment ◽  
Posterior Teeth ◽  
Light Emitting ◽  
Probing Depth ◽  
Bacterial Recolonization

Objective. To evaluate the amount of Fusobacterium nucleatum (F. nucleatum) and Prevotella intermedia (P. intermedia) on subgingival recolonized plaque after mechanical debridement and photodynamic treatment by using blue light-emitting diodes (LEDs) in combination with topical Curcuma longa gel extract. Methods. A total of 12 subjects with stage III grade B periodontitis were recruited for the study. Maxillary posterior teeth with periodontal pocket >4 mm were selected. These teeth were examined for periodontal clinical data at baseline and at 1, 2, 4, and 6 weeks after treatment. All remaining teeth were treated by scaling and root planing (SRP). Then, the teeth were bilaterally divided using randomized split-mouth design with and without photodynamic adjunctive therapy (PDT). Samples of the subgingival microbiota were obtained in each visit. All samples were analyzed by multicolor TaqMan real-time polymerase chain reaction (PCR) for the presence of target bacteria. Results. Throughout the six-week follow-up, long-term improvement of probing depth and bleeding on probing was revealed on the PDT group. The number of subgingival F. nucleatum and P. intermedia also significantly reduced, compared to the baseline. There was a statistically significant recolonization in F. nucleatum and P. intermedia number after 2 and 4 weeks of conventional SRP, respectively. Our quantitative PCR method showed no significant recolonization of those subgingival bacteria on PDT sites throughout the 6-week study duration. Conclusion. The results showed that adjunctive photodynamic treatment by using blue LEDs in combination with topical Curcuma longa gel extract was effective to alter the recolonization patterns of F. nucleatum and P. intermedia after conventional debridement.

scholarly journals Impact of Molar Furcations on Photodynamic Therapy Outcomes: A 6-Month Split-Mouth Randomized Clinical Trial

2020 ◽  
Vol 17 (11) ◽  
pp. 4162
Author(s):  
Aymeric Courval ◽  
Laetitia Harmouche ◽  
Anne Mathieu ◽  
Catherine Petit ◽  
Olivier Huck ◽  
...  
Keyword(s):  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Light Emitting Diode ◽  
Periodontal Therapy ◽  
Therapy Outcomes ◽  
Photodynamic Treatment ◽  
Light Emitting ◽  
Probing Depth ◽  
Furcation Involvement ◽  
The Impact

The effectiveness of adjunctive photodynamic treatment (PDT) to non-surgical periodontal therapy has been shown to depend on initial periodontal status. As molar furcation involvement impairs healing response to non-surgical periodontal therapy, the aim of this study was to evaluate the impact of furcation involvement on PDT outcomes. Thirty-six patients suffering from severe chronic periodontitis were included in a 6-month split-mouth randomized clinical trial. PDT applications used the toluidine blue O and a light-emitting diode (LED) with a red spectrum. Repeated PDT applications were performed in addition to non-surgical periodontal treatment at baseline and at 3-months. Pocket probing depth (PPD), plaque index, bleeding on probing, and clinical attachment level were recorded at baseline, and again at 3- and 6-months. Furcation sites of molars were compared to other sites of molars and non-molars. Multilevel analysis showed no PDT effect in molar furcation sites while an additional significant reduction (odds ratio = 0.67) of pockets with PPD > 5 mm in other sites at 3-months was measured. PPD reduction appeared delayed in molar furcation sites treated with PDT. There is no additional apparent benefit to use PDT in molar furcation sites for the reduction of pockets with PPD > 5 mm contrary to other sites.

scholarly journals Treatment of Residual Periodontal Pockets Using a Hyaluronic Acid-Based Gel: A 12 Month Multicenter Randomized Triple-Blinded Clinical Trial

Antibiotics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 924
Author(s):  
Andrea Pilloni ◽  
Blerina Zeza ◽  
Davor Kuis ◽  
Domagoj Vrazic ◽  
Tomislav Domic ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Bacterial Species ◽  
Fusobacterium Nucleatum ◽  
Bacterial Count ◽  
Periodontal Pocket ◽  
Control Treatment ◽  
Outcome Variable ◽  
Total Bacterial Count ◽  
Probing Depth ◽  
Attachment Level

The aim of the present study was to evaluate the adjunctive effect of hyaluronic acid (HA) gel in the treatment of residual periodontal pockets over a 12-month period. Periodontal patients presenting at least one residual periodontal pocket 5–9 mm of depth in the anterior area were recruited from six university-based centers. Each patient was randomly assigned to subgingival instrumentation (SI) with the local adjunctive use of HA for test treatment or adjunctive use of local placebo for control treatment at baseline and after 3 months. Clinical parameters ( )probing depth (PD), bleeding on probing (BoP), plaque index (PI), recession (REC), clinical attachment level (CAL)) and microbiological samples for the investigation of the total bacterial count (TBC) and presence of specific bacterial species (Porphyromonas gingivalis, Treponema denticola, Tannerella forsythia, Fusobacterium nucleatum) were taken at baseline and every 3 months, until study termination. PD was determined as the primary outcome variable. From a total of 144 enrolled, 126 participants (53 males, 73 females) completed the entire protocol. Both treatments resulted in statistically significant clinical and microbiological improvements compared to baseline. Although the local application of HA showed a tendency for better results, there was a lack of statistically significant differences between the groups.

scholarly journals In Vitro Effect of Photodynamic Therapy with Different Lights and Combined or Uncombined with Chlorhexidine on Candida spp.

Pharmaceutics ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1176
Author(s):  
Vanesa Pérez-Laguna ◽  
Yolanda Barrena-López ◽  
Yolanda Gilaberte ◽  
Antonio Rezusta
Keyword(s):  
Photodynamic Therapy ◽  
Light Emitting Diode ◽  
Antimicrobial Effect ◽  
Photodynamic Treatment ◽  
Candida Spp ◽  
Promising Alternative ◽  
Light Emitting ◽  
Colony Forming Units ◽  
Vitro Effect

Candidiasis is very common and complicated to treat in some cases due to increased resistance to antifungals. Antimicrobial photodynamic therapy (aPDT) is a promising alternative treatment. It is based on the principle that light of a specific wavelength activates a photosensitizer molecule resulting in the generation of reactive oxygen species that are able to kill pathogens. The aim here is the in vitro photoinactivation of three strains of Candida spp., Candida albicans ATCC 10231, Candida parapsilosis ATCC 22019 and Candida krusei ATCC 6258, using aPDT with different sources of irradiation and the photosensitizer methylene blue (MB), alone or in combination with chlorhexidine (CHX). Irradiation was carried out at a fluence of 18 J/cm2 with a light-emitting diode (LED) lamp emitting in red (625 nm) or a white metal halide lamp (WMH) that emits at broad-spectrum white light (420–700 nm). After the photodynamic treatment, the antimicrobial effect is evaluated by counting colony forming units (CFU). MB-aPDT produces a 6 log10 reduction in the number of CFU/100 μL of Candida spp., and the combination with CHX enhances the effect of photoinactivation (effect achieved with lower concentration of MB). Both lamps have similar efficiencies, but the WMH lamp is slightly more efficient. This work opens the doors to a possible clinical application of the combination for resistant or persistent forms of Candida infections.

scholarly journals Adjunctive air-polishing with erythritol in nonsurgical periodontal therapy: a randomized clinical trial

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Holger F. R. Jentsch ◽  
Christian Flechsig ◽  
Benjamin Kette ◽  
Sigrun Eick
Keyword(s):  
Test Group ◽  
Nonparametric Tests ◽  
Periodontal Therapy ◽  
Periodontal Pocket ◽  
Control Group ◽  
Clinical Variables ◽  
Air Polishing ◽  
Probing Depth ◽  
Nonsurgical Periodontal Therapy ◽  
Attachment Level

Abstract Background This study was aimed to investigate if the adjunctive use of erythritol air-polishing powder applied with the nozzle-system during subgingival instrumentation (SI) has an effect on the outcome of non-surgical periodontal treatment in patients with moderate to severe periodontitis. Methods Fourty-two individuals with periodontitis received nonsurgical periodontal therapy by SI without (controls, n = 21) and with adjunctive air-polishing using nozzle + erythritol powder (test, n = 21). They were analyzed for the clinical variables BOP (primary outcome at six months), probing depth (PD), attachment level, four selected microorganisms and two biomarkers at baseline, before SI as well as three and six months after SI. Statistical analysis included nonparametric tests for intra- and intergroup comparisons. Results In both groups, the clinical variables PD, attachment level and BOP significantly improved three and six months after SI. The number of sites with PD ≥ 5 mm was significantly lower in the test group than in the control group after six months. At six months versus baseline, there were significant reductions of Tannerella forsythia and Treponema denticola counts as well as lower levels of MMP-8 in the test group. Conclusions Subgingival instrumentation with adjunctive erythritol air-polishing powder does not reduce BOP. But it may add beneficial effects like reducing the probing depth measured as number of residual periodontal pocket with PD ≥ 5 mm when compared with subgingival instrumentation only. Clinical relevance The adjunctive use of erythritol air-polishing powder applied with the nozzle-system during SI may improve the clinical outcome of SI and may reduce the need for periodontal surgery. Trial registration The study was retrospectively registered in the German register of clinical trials, DRKS00015239 on 6th August 2018, https://www.drks.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL.

scholarly journals Characteristics, Treatment, and Prognosis of Cracked Teeth: A Comparison with Data from 10 Years Ago

2021 ◽  
Author(s):  
Tae Yeon Lee ◽  
Sung Eun Yang ◽  
Hye Min Kim ◽  
Min Joo Kye
Keyword(s):  
Root Canal ◽  
Statistical Significance ◽  
Treatment Method ◽  
Root Canal Treatment ◽  
Periodontal Pocket ◽  
P Value ◽  
Chi Square ◽  
Pocket Depth ◽  
Persistent Symptoms ◽  
Probing Depth

Abstract Objectives The purpose of this study was to analyze and to compare retrospectively the characteristics, the treatment process, and the prognosis of cracked teeth by comparing recent data with data from 10 years ago. Materials and Methods Sixty-eight cracked teeth from March 2009 to June 2010 (2009 data) and 185 cracked teeth from March 2019 to June 2020 (2019 data) were analyzed. The characteristics of cracked teeth and the treatment method depending on probing depth, caries, and symptoms, and prognosis depending on pocket depth and apical lesions were analyzed using R version 3.3.3 (R Foundation for Statistical Computing, Vienna, Austria) and T&F version 3.0 (YooJin BioSoft, Korea). To compare proportions, the two-sample proportion test was performed. The distribution of proportions within the samples from 2009 and 2019 data was analyzed using the Chi-square test or binomial test. A p-value <0.05 was considered to indicate statistical significance. Results Significantly fewer cracked teeth received root canal treatment before crown in 2019 than in 2009 (p = 0.032). In both 2009 and 2019, symptomatic cracked teeth and those with deep periodontal pockets (>6 mm) were significantly more likely to receive root canal treatment. In both years, cracked teeth with a probing depth less than 6 mm or without an apical lesion were significantly more likely to be asymptomatic at 3-month and 6-month follow-ups (p < 0.001). Conclusion Cracked teeth with a deep periodontal pocket or symptoms had a higher likelihood of endodontic treatment, and the presence of a deep periodontal pocket or apical lesion was associated with a higher risk of persistent symptoms. Therefore, clinicians should consider these factors when planning treatment and predicting patients’ prognosis.

GROWTH INHIBITORY ACTIVITIES OF THE RHIZOME CRUDE EXTRACT OF Curcuma longa ON THE HUMAN PATHOGENIC FUNGUS Mucor circinelloides

2020 ◽  
Vol 65 (10) ◽  
pp. 82-91
Author(s):  
Phuong Nguyen Anh ◽  
Mai Le Thi Tuyet ◽  
Trung Trieu Anh
Keyword(s):  
Antifungal Activity ◽  
Crude Extract ◽  
Fungal Infections ◽  
Early Stage ◽  
Curcuma Longa ◽  
Pathogenic Fungus ◽  
Mucor Circinelloides ◽  
Antifungal Drugs ◽  
Diffusion Method ◽  
Dilution Method

Mucormycosis is an uncommon but life-threatening invasive fungal infection, mostly occurs in immunocompromised patients. Lacking the appropriate antifungal drugs is one of the reasons that lead to difficulties in the management of mucormycosis. Curcuma longa has been used traditionally and widely to treat various diseases, including fungal infections. In the search for novel antifungal compounds from natural resources, we evaluated the effect of rhizome crude extract of C. longa on Mucor circinelloides – a causal agent of mucormycosis. The results of screening, using broth dilution method and agar-well diffusion method, showed that the C. longa extract exhibited promising antifungal activity against the fungus M. circinelloides. In liquid medium, C. longa extract decreased the ability of spore germination and the speed of hyphae formation of M. circinelloides decreased by up to approximately 70% and 90%, respectively. Besides, in a solid medium, the crude extract presented similar activity with amphotericin B (400 μg\mL) in decreasing the growth of M. circinelloides by nearly 77%. Moreover, the extract of C. longa also likely to induce the yeast-like type of growth of the dimorphic M. circinelloides in the early stage. These results suggest the plant could be a potential source for further study on biochemical components and the mechanism of its antifungal activity.

scholarly journals Alterations of the Predominant Fecal Microbiota and Disruption of the Gut Mucosal Barrier in Patients with Early-Stage Colorectal Cancer

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Xia Liu ◽  
Yiwen Cheng ◽  
Li Shao ◽  
Zongxin Ling
Keyword(s):  
Colorectal Cancer ◽  
Diamine Oxidase ◽  
Early Stage ◽  
Fusobacterium Nucleatum ◽  
Fecal Microbiota ◽  
Mucosal Barrier ◽  
Beneficial Bacteria ◽  
Barrier Dysfunction ◽  
Real Time Quantitative Pcr ◽  
Gut Mucosal Barrier

Growing evidence indicated that the gut microbiota was the intrinsic and essential component of the cancer microenvironment, which played vital roles in the development and progression of colorectal cancer (CRC). In our present study, we investigated the alterations of fecal abundant microbiota with real-time quantitative PCR and the changes of indicators of gut mucosal barrier from 53 early-stage CRC patients and 45 matched healthy controls. We found that the traditional beneficial bacteria such as Lactobacillus and Bifidobacterium decreased significantly and the carcinogenic bacteria such as Enterobacteriaceae and Fusobacterium nucleatum were significantly increased in CRC patients. We also found gut mucosal barrier dysfunction in CRC patients with increased levels of endotoxin (LPS), D-lactate, and diamine oxidase (DAO). With Pearson’s correlation analysis, D-lactate, LPS, and DAO were correlated negatively with Lactobacillus and Bifidobacterium and positively with Enterobacteriaceae and F. nucleatum. Our present study found dysbiosis of the fecal microbiota and dysfunction of the gut mucosal barrier in patients with early-stage CRC, which implicated that fecal abundant bacteria and gut mucosal barrier indicators could be used as targets to monitor the development and progression of CRC in a noninvasive and dynamic manner.

scholarly journals Clinical and Radiographic Characteristics of Endoperiodontitis in Patients with Chronic Generalized Periodontitis

2017 ◽  
pp. 13-20
Author(s):  
L.N. Dedova ◽  
Yu.L. Denisova ◽  
N.I. Rossenik
Keyword(s):  
Prognostic Significance ◽  
Periodontal Pocket ◽  
Cone Beam ◽  
Radiographic Examination ◽  
Control Group ◽  
Diagnostic Efficacy ◽  
Probing Depth ◽  
Furcation Involvement ◽  
Total Accuracy

The article presents modern data on the priority clinical and radiographic signs of endoperiodontitis in patients with chronic generalized periodontitis. The aim of the research was to determine the complex of clinical and radiographic methods for diagnosing the patients with chronic generalized periodontitis in conjunction with a localized complex endoperiodontitis. Objects and methods. The research included the clinical and radiographic examination of 100 almost healthy patients aged 35-44 years. The study group consisted of 50 patients with chronic generalized periodontitis of moderate severity in conjunction with a localized complex endoperiodontitis (100 teeth). The control group was represented by 50 patients without periodontal pathology. The diagnosis endoperiodontitis was made according to the classification of professor L.N. Dedova (2012). Result and discussion. Clinical studies revealed chronic localized endoperiodontitis which led to 13.6 times decrease of pulp vitality and increase in the probing depth of the periodontal pocket by 4.84 ± 1,34 mm. CBCT was characterized by greater than IOR and OPG sensitivity (98%), 96% specificity, with a total accuracy of 97% and 24.5 times higher prognostic significance. Conclusion. The main methods of diagnosing localized complex endoperiodontitis are the electric pulp test and probing the periodontal pockets that has 4.2 times higher prognostic significance compared to gingival index, bleeding on probing, suppuration from periodontal pockets, migration of teeth, positive percussion, tooth mobility, furcation involvement and formation of acute periodontal abscesses. The additional method of diagnosing the localized complex endoperiodontitis is cone-beam computed tomography that has the diagnostic efficacy 96‒98% compared to intraoral radiography (42‒44%) and orthopantomography (52‒66%).

scholarly journals Chromaticity Study of Curcumin Dye Extracted from Curcuma longa L. Using for UV Light down Conversion for White Light Emitting Diode

2019 ◽  
Vol 290 ◽  
pp. 183-189
Author(s):  
Mahmood Al Shafouri ◽  
Naser Mahmoud Ahmed ◽  
Zainuriah Hassan ◽  
Munirah Abdullah Almessiere
Keyword(s):  
White Light ◽  
Uv Light ◽  
Light Emitting Diode ◽  
Curcuma Longa ◽  
Color Temperature ◽  
Light Emitting ◽  
Chromaticity Coordinates ◽  
Major Factors ◽  
Color Rendering ◽  
Down Conversion

In thus study, Turmeric phosphor dye was extracted from Curcuma Longa L. via a simple technique using silica gel. The phosphor was used for light down-conversion of UV light for the manufacture white light emitting diode (WLED). The UV-LED was analyzed over 395nm wavelengths. The characteristics of the white light chromaticity were controlled by tuning the current and phosphor concentration. An optimum color rendering index (CRI) value of 63.4 was obtained. The chromaticity coordinates (CIE) and correlated color temperature (CCT) were measured for various currents and phosphor concentrations. The white phosphor exhibited CIE value of 0.355,0.338 and CCT of 4567 K. The concentration of phosphor and amount of applied current were confirmed to be major factors that control the intensity of white light emitted from the sample, where CIE and CRI of the emitted light steadily increased with the concentration of phosphor and current. Thus, phosphor concentration has a critical effect on conversion efficiency. Key words: Turmeric, phosphor, WLED, curcumin

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