scholarly journals The influence of liners on the pulp inflammation

2015 ◽  
Vol 143 (5-6) ◽  
pp. 261-266 ◽  
Author(s):  
Lado Davidovic ◽  
Mirjana Cuk ◽  
Marija Zivkovic-Sandic ◽  
Djurica Grga ◽  
Slavoljub Zivkovic
Keyword(s):  
Dental Pulp ◽  
Histological Analysis ◽  
Dental Composite ◽  
Control Group ◽  
Class V ◽  
Lower Incisor ◽  
Inflammatory Reactions ◽  
Experimental Animals ◽  
Pulp Inflammation ◽  
Rabbit Dental Pulp

Introduction. The study included application of liners and dental composites in to cavities of six experimental animals - rabbits (Oryctolagus cuniculus). Objective. The aim of the study was to investigate rabbit dental pulp response to different liners. Methods. Cavity preparation for class V were made on the maxillary central incisors and one lower incisor, while the second lower incisor served as a control tooth. These teeth were restored with the use of one of the following liners - Calcimol LC, ANA Liner and Fuji II LC Improved, and Ceram-X mono dental composite. After an observation period of five days animals were sacrificed and prepared for histological analysis. The existence and degree of the pulp inflammation was determined by using a light microscope. Results. Results showed that the used liners do not cause distortion of the structure and continuity of the odontoblastic layer. Inflammation was not registered in the control group, while in each group of tested materials one tooth with mild signs of hyperemia was registered. Results showed that all three tested liners demonstrated favorable effects on the pulp of the tooth and did not lead to inflammatory reactions. Conclusion. Histological analysis of the dental pulp of experimental animals suggests that the liners used in this study do not compromise the integrity of the odontoblastic layer, if it is applied over a thin layer of dentin. In each group of tested materials one tooth with mild signs of hyperemia and vasodilation was registered.

scholarly journals Anti-Inflammatory Effect of Centella asiatica (L.) Extract by Decreasing TNF-α Serum Levels in Rat Model of Traumatic Brain Injury

2021 ◽  
Vol 53 (2) ◽  
Author(s):  
Nafiisah Nafiisah ◽  
◽  
Falah Faniyah ◽  
Yoga Mulia Pratama
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Rat Model ◽  
Alternative Therapy ◽  
Centella Asiatica ◽  
Serum Levels ◽  
Control Group ◽  
Inflammatory Reactions ◽  
Experimental Animals ◽  
Tnf Α

Centella asiatica (L.) has many active ingredients with many important roles, including as antioxidant, anti-inflamation and neuroprotectant. Centella asiatica (L.) can reduce inflammatory reactions by inhibiting the activity of TNF-α. Thus, Centella asiatica (L.) is a potential alternative therapy for traumatic brain injury by reducing inflammation via TNF-α expression modulation. This study aimed to determine the effect of Centella asiatica (L.) on serum TNF-α levels in rat model of traumatic brain injury. This study was conducted during the period of July 3-17, 2020 at the LPPT Unit IV, Gajah Mada University. This was a true experimental with post-test only control group study on 35 male wistar rats as the experimental animals. The rats were divided into 5 groups: P1, P2, and traumatic brain injury groups that received Centella asiatica (L.) treatement at 150, 300, and 600mg/kgBW/d doses, respectively. Blood samples were collected after the experimental animals were terminated to assess serum TNF-α levels. Mean TNF-α levels were 60,980±4,057, 76,931±0,698, P3=75,889±0,948, P4=75,868±1,163, and 74,508±1,126 for P1, P2, P3, P4, and P5, respectively. The Kruskal Wallis test results showed a statistically different between groups (p = 0.005). This study shows that Centella asiatica (L.) can decrease serum TNF-α level in rat model of traumatic brain injury.

scholarly journals The Effect of Lipoteichoic Acid from Lactobacillus plantarum on Dental Pulp Inflammation

2021 ◽  
Author(s):  
Nirawati Pribadi ◽  
Retno Pudji Rahayu ◽  
Kun Ismiyatin ◽  
Cindy Ramadhan Putri ◽  
Meircurius Dwi Condro Surboyo
Keyword(s):  
Cell Wall ◽  
Lactobacillus Plantarum ◽  
Virulence Factor ◽  
Dental Pulp ◽  
Lipoteichoic Acid ◽  
Control Group ◽  
Pulp Inflammation ◽  
Upper Molar ◽  
Temporary Filling

Abstract Objective Lactobacillus plantarum, a bacterium located in deep caries, has a virulence factor in the form of lipoteichoic acid (LTA), which is found in the bacterial cell wall. LTA is able to trigger a neutrophils response in the dental pulp inflammation process within the first 6 to 24 hours. The quantity of bacteria is one factor influencing the increase in number of neutrophils in addition to the quality of the bacteria. This study seeks to analyze the effect of lipoteichoic acid of Lactobacillus plantarum (LTA-Lp) in the dental pulp inflammation by observing the number of neutrophil cells in a histopathological view. Materials and Methods The LTA was isolated from L. plantarum. The left upper molar of Rattus novergicus was mechanically perforated under anesthesia to induce dental pulp inflammation. The perforated tooth was then induced by 10 and 15 µg/mL of LTA-Lp and then restored by a temporary filling. The perforated tooth in the control group was only restored by a temporary filling. After 24, 48, and 72 hours, the tooth was extracted and then stained with hematoxylins and eosin to observe the neutrophils in the dental pulp via a light microscope. Result The number of neutrophils in the dental pulp after induction by 15 µg/mL of LTA-Lp is higher than 10 µg/mL of LTA-Lp and both controls. There were significant differences in the number of neutrophils in the dental pulp, in each group on 24, 48, and 72 hours after LTA-Lp inducing (p < 0.05). Conclusion The LTA-Lp dose of of 10 and 15 µg/mL affected the dental pulp inflammation by affecting the number of neutrophils.

scholarly journals Immediate response of human dental pulp capped with mineral trioxide aggregate, Portland cement and biodentin

2019 ◽  
Vol 45 (2) ◽  
pp. 108-116
Author(s):  
AKM Bashar ◽  
A.K.M Nurul Kabir ◽  
Rozina Akhter Rizdina ◽  
Ranjit Ghosh ◽  
Ashis Kumar Biswas ◽  
...  
Keyword(s):  
Portland Cement ◽  
Inflammatory Reaction ◽  
Dental Pulp ◽  
Mineral Trioxide Aggregate ◽  
Tissue Reaction ◽  
Control Group ◽  
Pulp Capping ◽  
Pulp Inflammation ◽  
Significant Difference ◽  
Human Dental Pulp

Background: The initial inflammatory reaction of pulp capping materials on the dental pulp has an intimate relation in promoting the future cellular differentiation and biomaterial mineralisation. So, analysis of immediate pulpal tissue reaction in vivo, is also important for evaluation of ultimate efficacy any pulp capping agent. To observe immediate inflammatory response of Human Dental Pulp capped with Mineral Trioxide Aggregate (MTA), Biodentin and Portland Cement (PC). Methods: A total of 70 permanent premolars teeth planned to be extracted for orthodontic alignment of occlusion were used as study sample. The teeth were divided into 3 experimental groups, MTA (n=20), Biodentin (n=20) Portland cement (n=20) and control group (n=10). After having an occlusal exposure of approximately 1.5 mm in diameter; in group A, pulp of teeth was capped with 2-mm-thick layer of ProRoot White MTA (Dentsply) and in group B, with sterile Biodentin (Septodont) according to the manufacturer’s recommendations. Whereas in group C, pulp of teeth was capped with sterile Portland Cement (PC). After placing the experimental material in each group, all teeth restored with glass i‹xiomer cement. After 24 hours the teeth were extracted, fixed in 10% buffered formalin solution, then decalcified by 10% nitric acid and embedded in paraffin. Finally, sectioned into 2 to 3-micron-thick serial sections in the linguo-buccal plane and stained with hematoxylin-eosin. After then the amount of pulp inflammation (type, intensity, and extension) were determined by using a predetermined evaluation criterion under an optical microscope at 40a magnification. Ten intact teeth, which received no exposure and pulp capping but extracted due to orthodontic purpose were also collected and treated as the control group (group D); undergone same histologic preparation and evaluation. Significantstatistical differences among the experimental groups were to be found (p<0.05). Results: Histologically, all the three tested materials produced immediate pulpal tissue reaction. ‘Biodentin’ found to be most immediate pulpal tissue reactive (reactive in 100% cases) and ‘Portland Cement’ showed least immediate tissue reaction (only in 30.0% cases). whereas, MTA produced immediate tissue reaction only in 50.0% cases. Immediate pulpal inflammatory reaction in response to tested material found to be statistically significant different between ‘Biodentin’ and ‘Portland cmient’ (p=0.01), also between ‘Biodentin’ and ‘MTA’ and (p=0.001); but there was no statistically significant difference between ‘MTA’ and ‘Portland cement’ (p =0.197). Conclusion: Considering the maximum immediate pulpal tissue reaction (Inflammation), Biodentin is expected to produce most favorable ultimate bioactivity (biomaterial mineralization) after pulp capping. Bangladesh Med Res Counc Bull 2019; 45: 108-116

scholarly journals THE EFFECT OF KARAMUNTING (Rhodomyrtus Tomentosa) LEAF EXTRACT ON THE NUMBER OF MACROPHAGES IN PULP INFLAMMATION

2021 ◽  
Vol 6 (2) ◽  
pp. 131
Author(s):  
Indah Septiani ◽  
Muhammad Yanuar Ichrom Nahzi ◽  
Nolista Indah Rasyid
Keyword(s):  
Calcium Hydroxide ◽  
Dental Pulp ◽  
Leaf Extract ◽  
Simple Random Sampling ◽  
Negative Control Group ◽  
Negative Control ◽  
Control Group ◽  
Not Given ◽  
Pulp Inflammation ◽  
Significant Difference

Background: Reversible pulpitis is an inflammation of dental pulp caused by the opening of the pulp due to cavities. One of the procedures in exposed pulp treatment is direct pulp capping using calcium hydroxide. However, this material has side effects, its high pH can cause necrosis, and due to that, a safer alternative material is needed. Karamunting leaf extract contains phenolic compounds, flavonoids, tannins, and saponins which have immunomodulatory properties that play an important role in healing exposed pulp. Objective: To determine the effect of karamunting leaf extract on the number of macrophages in pulp inflammation. Methods: This was a true experimental research with posttest-only group design, using simple random sampling that consist of 24 male Wistar rats which later be divided into 3 groups. The perforated rat dental pulp was then treated with karamunting leaf extract as a treatment group, calcium hydroxide as a positive control group, and not given any application (without drug) as a negative control group. The samples were analyzed histologically on the 3rd to 7th day after the application, inflammatory response occurred in all groups. Results: The two-way ANOVA results showed that there was a significant difference between the karamunting leaf extract group, the group that was not given drug, and the group given calcium hydroxide with a value p<0.05. Conclusion: Based on the research conducted, it is concluded that the administration of karamunting leaf extract can reduce the number of macrophages in pulp inflammation. Keywords: calcium hydroxid, exposed pulp, karamunting leaf, macrophages, pulp inflammation.

scholarly journals Rat dental pulp tissue reaction after capped with propolis derived nonflavonoid extract

2011 ◽  
Vol 23 (1) ◽  
Author(s):  
Ardo Sabir
Keyword(s):  
Dental Pulp ◽  
Chemical Substance ◽  
Tissue Reaction ◽  
Control Group ◽  
Pulp Tissue ◽  
Group I ◽  
Pulp Inflammation ◽  
Dental Pulp Tissue ◽  
Anti Inflammatory ◽  
Group Ii

Propolis is a resinous material collected by honey bees from various plants. Many types of research have shown that it has antibacterial and anti-inflammation activities. Flavonoid is the main chemical substance in propolis that inhibits bacterial growth and reduces the release of free radicals, suggesting that this component has anti-bacterial and anti-inflammatory properties. However, there is another chemical substance in propolis that shows antibacterial dan anti-inflammatory activities. The purpose of the present study was to assess the rat dental pulp tissue reaction after capped with propolis derived non-flavonoids extract. Non-flavonoids substances were purified from an ethanol extract of propolis obtained from South Sulawesi, Indonesia. A Class I cavity was prepared on the occlusal surface of the right maxillary first molar in Spraque-Dawley rats. The dental pulp was exposed and then capped with a zinc oxide-based filler as a control (Group I), or non-flavonoids propolis (Group II). Then, each cavity was filled with glass ionomer cement. The animals were sacrificed at week 1, 2, or 4. Biopsy samples were obtained, and these were stained and viewed by light microscopy. The histological examination was based on the presence of polymorph nuclear leukocytes and macrophages. The results showed that pulp inflammation occurred in both groups as early as week 1. However, the inflammation occurred in Group II was relatively milder compared to Group I at all time period. Therefore, present results suggest that application of non-flavonoids propolis extract on rat's dental pulp tissue might inhibit inflammatory process.

scholarly journals Pulp response to dentine adhesives: A study on mature human pulps

2013 ◽  
Vol 07 (S 01) ◽  
pp. S026-S032 ◽  
Author(s):  
Pantelis Kouros ◽  
Eugenia Koliniotou-Koumpia ◽  
Elisabeth Koulaouzidou ◽  
Maria Helvatjoglu-Antoniades ◽  
Dimitrios Tziafas
Keyword(s):  
Adhesive System ◽  
Control Group ◽  
Antibacterial Effects ◽  
Human Teeth ◽  
Class V ◽  
Pulp Inflammation ◽  
Short Period ◽  
Operative Evaluation ◽  
Hematoxylin And Eosin ◽  
Self Etch

ABSTRACT Objective: To clinically investigate the antibacterial effects of a commercially available self-etch 12-methacryloyloxy- dodecylpyridinium bromide (MDPB)-containing adhesive system in comparison with its respective non-MDPB-containing adhesive and to evaluate the pulp responses when in use on human teeth. Materials and Methods: Sixty-two viable human teeth scheduled for extraction were used. Class V cavities were prepared on the buccal surfaces of the teeth and filled with the tested materials (Protect Bond/Clearfil AP-X, SE Bond/Clearfil AP-X and Dycal/Ketac Fill Plus) as a control group, according to manufacturer′s recommendations. Randomly divided to two groups teeth remained intra-orally for 4 and 8 weeks. After extraction, teeth were decalcified, sectioned and stained using the Mayer′s hematoxylin and eosin, and modified Brown-Brenn′s technique. Pulp responses were evaluated microscopically under a microscope and remaining dentine thickness measured under a stereomicroscope. Results: No statistically significant differences regarding pulp inflammation or bacterial infiltration were found either for the materials tested or for periods of post-operative evaluation. Conclusions: The results suggested that for a short period of evaluation there are no quantitative differences, regardless to restoring material used.

Detection and Assessment of Interleukin 6 in Irreversible Pulp Inflamation

2017 ◽  
Vol 68 (2) ◽  
pp. 323-327
Author(s):  
Cristian Levente Giuroiu ◽  
Maria Vataman ◽  
Gabriel Melian ◽  
Dragos Bularda ◽  
Ludmila Lozneanu ◽  
...  
Keyword(s):  
Dental Caries ◽  
Interleukin 6 ◽  
Dental Pulp ◽  
The Other ◽  
Control Group ◽  
Study Group ◽  
Pulp Tissue ◽  
Immunohistochemical Technique ◽  
Systemic Distribution ◽  
Cell Zone

The study aimed to assess the number, localization and distribution of interleukin 6 (IL-6) positive cells in healthy pulp, acute and chronic pulpitis. The study group included 48 patients aged between 18-72, treated in University of Medicine and Pharmacy Grigore T. Popa Iasi, Romania. The pulpectomy was performed on 42 patients diagnosed with acute and chronic pulpitis. The other 6 patients, without signs of dental caries or periodontal disease, were submitted to extractions of teeth for orthodontic purposes, with pulpectomy performed before extraction. The pulp samples were examined with optic microscope. The detection and assessment of IL-6 were performed using immunohistochemical technique. Data were statistically analysed using non-parametric tests. According to morphopathological criteria, 42.85% were classified as acute pulpitis and 57.14% as chronic pulpitis. The pulp samples in control group were not associated with IL-6 positive cells. The analysis of all samples with acute and chronic pulpitis identified 73.80% samples with IL-6 and 26.20% associated with the absence of IL-6. The highest frequency of IL-6 positive cells was recorded in rich-cell zone of crown dental pulp. The systemic distribution of IL-6 positive cells was mostly diffused without well-defined orientation. IL-6 release in acute and chronic pulpitis is significantly higher comparing with healthy pulp tissue.

scholarly journals Comparative evaluation of osteogenic differentiation potential of stem cells derived from dental pulp and exfoliated deciduous teeth cultured over granular hydroxyapatite based scaffold

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Manal Nabil Hagar ◽  
Farinawati Yazid ◽  
Nur Atmaliya Luchman ◽  
Shahrul Hisham Zainal Ariffin ◽  
Rohaya Megat Abdul Wahab
Keyword(s):  
Stem Cells ◽  
Osteogenic Differentiation ◽  
Dental Pulp ◽  
3D Culture ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Osteogenic Potential ◽  
Control Group ◽  
Rt Pcr ◽  
Differentiation Potential

Abstract Background Mesenchymal stem cells isolated from the dental pulp of primary and permanent teeth can be differentiated into different cell types including osteoblasts. This study was conducted to compare the morphology and osteogenic potential of stem cells from exfoliated deciduous teeth (SHED) and dental pulp stem cells (DPSC) in granular hydroxyapatite scaffold (gHA). Preosteoblast cells (MC3T3-E1) were used as a control group. Methodology The expression of stemness markers for DPSC and SHED was evaluated using reverse transcriptase-polymerase chain reaction (RT-PCR). Alkaline phosphatase assay was used to compare the osteoblastic differentiation of these cells (2D culture). Then, cells were seeded on the scaffold and incubated for 21 days. Morphology assessment using field emission scanning electron microscopy (FESEM) was done while osteogenic differentiation was detected using ALP assay (3D culture). Results The morphology of cells was mononucleated, fibroblast-like shaped cells with extended cytoplasmic projection. In RT-PCR study, DPSC and SHED expressed GAPDH, CD73, CD105, and CD146 while negatively expressed CD11b, CD34 and CD45. FESEM results showed that by day 21, dental stem cells have a round like morphology which is the morphology of osteoblast as compared to day 7. The osteogenic potential using ALP assay was significantly increased (p < 0.01) in SHED as compared to DPSC and MC3T3-E1 in 2D and 3D cultures. Conclusion gHA scaffold is an optimal scaffold as it induced osteogenesis in vitro. Besides, SHED had the highest osteogenic potential making them a preferred candidate for tissue engineering in comparison with DPSC.

scholarly journals Cytotoxicity assessment of different doses of ozonated water on dental pulp cells

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ferdiye Küçük ◽  
Sibel Yıldırım ◽  
Serap Çetiner
Keyword(s):  
Cell Viability ◽  
Repeated Measures ◽  
Dental Pulp ◽  
Control Group ◽  
Dental Pulp Cells ◽  
Time Points ◽  
Significant Difference ◽  
Pulp Cells ◽  
Time Point ◽  
Ozonated Water

Abstract Background The purpose of this study was to assess the cytotoxicity of various concentrations of ozonated water (OW) on human primary dental pulp cells. Methods Human primary dental pulp cells were isolated from exfoliated primary canine teeth of an 11-year-old patient with good systemic and oral health. Afterwards, cells were divided into 6 experimental groups; four groups of OW in concentrations of 2 mg/L, 4 mg/L, 8 mg/L, and 16 mg/L, untreated control group, and cell culture without cells. Cytotoxicity was evaluated after exposure for 5-min exposure using Mosmann’s Tetrazolium Toxicity (MTT) assay at 0 h and 48 h time points. Data were analyzed using a repeated measures analysis of variance and Post-hoc tests were performed using Bonferroni correction for multiple comparisons. Results All experimental groups showed proliferation at 0 h time point. However, all groups also experienced a decrease in overtime at 48 h time point (p < 0.05). At both time points 2 mg/L OW showed the highest cell viability as well as proliferation. At 0 h time point, the increase in cell viability for all experimental groups was found statistically significant when compared to positive control group (p < 0.05). At 48 h time point, although 8 mg/L and 16 mg/L OW showed statistically significant reduction in compare to 0 h time point, 2 mg/L and 4 mg/L OW groups didn’t experience any statistically significant difference (p < 0.05). Conclusion Considering our findings, due to ozonated water's induced a higher proliferation rate of dental pulp cells, indicating their biocompatibility and a possible adjuvant on irrigating agent in regenerative endodontic procedures.

scholarly journals Lactobacillus plantarum ATG-K2 and ATG-K6 Ameliorates High-Fat with High-Fructose Induced Intestinal Inflammation

2021 ◽  
Vol 22 (9) ◽  
pp. 4444
Author(s):  
Miey Park ◽  
Eun-Jung Park ◽  
So-Hyeun Kim ◽  
Hae-Jeung Lee
Keyword(s):  
Small Intestine ◽  
Cell Injury ◽  
Intestinal Inflammation ◽  
Liver Weight ◽  
Diet Group ◽  
Normal Diet ◽  
Control Group ◽  
High Fat ◽  
Inflammatory Reactions ◽  
High Fructose

Obesity has become a worldwide health problem, and many significant inflammatory markers have been associated with the risk of side effects of obesity and obesity-related diseases. After a normal diet or high-fat diet with high-fructose water (HFHF) for 8 weeks, male Wistar rats were divided randomly into four experimental groups according to body weight. Next, for 8 weeks, a normal diet, HFHF diet, and HFHF diet with L. plantarum strains ATG-K2 or ATG-K6 were administered orally. Compared to the control group, the HFHF diet group showed significantly increased visceral fat, epididymal fat, and liver weight. The mRNA and protein expression levels of FAS and SREBP-1c were higher in the HFHF diet group than in the HFHF diet with L. plantarum strains ATG-K2 and ATG-K6. The HFHF diet with L. plantarum strain ATG-K2 showed significantly decreased inflammatory cytokine expression in the serum and small intestine compared to the HFHF diet group. Furthermore, histological morphology showed minor cell injury, less severe infiltration, and longer villi height in the small intestine ileum of the HFHF diet with L. plantarum strains groups than in the HFHF diet group. These results suggest that L. plantarum strains K2 and K6 may help reduce intestinal inflammation and could be used as treatment alternatives for intestinal inflammatory reactions and obesity.

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