scholarly journals Direct pulp capping with novel nanostructural materials based on calcium silicate systems and hydroxyapatite

2016 ◽  
Vol 63 (4) ◽  
pp. 183-192 ◽  
Author(s):  
Marijana Popović Bajić ◽  
Violeta Petrović ◽  
Vanja Opačić Galić ◽  
Vesna Danilović ◽  
Vukoman Jokanović ◽  
...  
Keyword(s):  
Calcium Silicate ◽  
Healing Process ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Therapeutic Effects ◽  
Direct Pulp Capping ◽  
Pulp Tissue ◽  
Pulp Capping ◽  
Nanostructural Material ◽  
Experimental Group

Summary Introduction Direct pulp capping is an important therapeutic method that has goal to provide formation of dentin bridge and healing process of the pulp. The aim of this study was to investigate the effects of new nanostructural materials based on calcium silicate systems and hydroxyapatite on exposed dental pulp in Vietnamese pigs. Material and Methods The study was conducted on 30 teeth of two Vietnamese pigs (Sus scrofa verus). On buccal surfaces of incisors, canines and first premolars, class V cavities were prepared with a small round bur and pulp horn was exposed. In the first experimental group (10 teeth) the perforation was covered with new nanostructural material based on calcium silicate systems (CS). In the second experimental group, the perforation was covered with compound of calcium silicate systems and hydroxyapatite (HA-CS) (10 teeth). In the control group, exposed pulp was covered with Pro Root MTA® (Dentsply Tulsa Dental, Johnson City, TN, USA) (10 teeth). All cavities were restored with glass ionomer cement (GC Fuji VIII, GC Corporation, Tokyo, Japan). Observation period was 28 days. After sacrificing the animals, histological preparations were done to analyze the presence of dentin bridge, inflammatory reaction of the pulp, pulp tissue reorganization and the presence of bacteria. Results Dentin bridge was observed in all teeth (experimental and control groups). Inflammation of the pulp was mild to moderate in all groups. Neoangiogenesis and many odontoblast like cells responsible for dentin bridge formation were detected. Necrosis was not observed in any case, neither the presence of Gram-positive bacteria in the pulp. Conclusion Histological analysis indicated favorable therapeutic effects of new nanostructural materials based on calcium silicate systems and hydroxyapatite for direct pulp capping in teeth of Vietnamese pigs.

scholarly journals Direct pulp capping using biodentine

2014 ◽  
Vol 61 (2) ◽  
pp. 65-74
Author(s):  
Marijana Popovic-Bajic ◽  
Vesna Danilovic ◽  
Branislav Prokic ◽  
Bogomir Prokic ◽  
Vukoman Jokanovic ◽  
...  
Keyword(s):  
Healing Process ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Therapeutic Effects ◽  
Direct Pulp Capping ◽  
Pulp Tissue ◽  
Bridge Formation ◽  
Pulp Capping ◽  
Tissue Reorganization ◽  
And Control

Introduction. Direct pulp capping is therapeutic method of applying medication on exposed pulp in order to allow bridge formation and healing process. The aim of this study was to investigate the effect of Biodentine on exposed dental pulp of Vietnamese pigs. Material and Methods. The study was conducted on 20 teeth of Vietnamese pigs (Sus scrofa domesticus). On buccal surfaces of incisors, canines and first premolars, class V cavities were prepared and pulp was exposed. In the experimental group (six incisors, two canines and two premolars) the perforation was covered with Biodentine? (Septodont, Saint-Maur-des-Fosses, France). In the control group, the perforation was covered with MTA? (Dentsply Tulsa Dental, Johnson City, TN, USA). All cavities were restored with glass ionomer cement (GC Fuji VIII, GC Corporation, Tokyo, Japan). Observation period was 28 days. After sacrificing the animals, histological preparations were done to analyze the presence of dentin bridge, an inflammatory reaction of the pulp, pulp tissue reorganization and the presence of bacteria. Results. Dentin bridge was observed in all teeth (experimental and control groups). Inflammation of the pulp was mild to moderate in both groups. Neoangiogenesis and many odontoblast like cells responsible for dentin bridge formation were detected. Necrosis was not observed in any case, neither the presence of Gram-positive bacteria in the pulp. Conclusion. Histological analysis indicated favorable therapeutic effects of Biodentine for direct pulp capping in teeth of Vietnamese pigs. Findings were similar with Biodentine and MTA.

scholarly journals Histological effects of enamel matrix derivative on exposed dental pulp

2015 ◽  
Vol 143 (7-8) ◽  
pp. 397-403 ◽  
Author(s):  
Marijana Popovic-Bajic ◽  
Vesna Danilovic ◽  
Branislav Prokic ◽  
Bogomir Prokic ◽  
Milica Manojlovic ◽  
...  
Keyword(s):  
Healing Process ◽  
Glass Ionomer Cement ◽  
Enamel Matrix Derivative ◽  
Tooth Pulp ◽  
Control Group ◽  
Direct Pulp Capping ◽  
Bridge Formation ◽  
Pulp Capping ◽  
Tissue Reorganization ◽  
And Control

Introduction. Direct pulp capping procedure is a therapeutic application of a drug on exposed tooth pulp in order to ensure the closure of the pulp chamber and to allow the healing process to take place. Objective. The aim of this study was to examine the histological effects of Emdogain? on exposed tooth pulp of a Vietnamese pig (Sus scrofa verus). Methods. The study comprised 20 teeth of a Vietnamese pig. After class V preparation on the buccal surfaces of incisors, canines and first premolars, pulp was exposed. In the experimental group, the perforations were capped with Emdogain? (Straumann, Basel, Switzerland), while in the control group pulp capping was performed with MTA? (Dentsply Tulsa Dental, Johnson City, TN, USA). All cavities were restored with glass-ionomer cement (GC Fuji VIII, GC Corporation, Tokyo, Japan). The observational period was 28 days, after which the animal was sacrificed and histological preparations were made. A light microscope was used to analyze dentin bridge formation, tissue reorganization and inflammation, and the presence of bacteria in the pulp. Results. The formation of dentin bridge was observed in the experimental and control groups. Inflammation of the pulp was mild to moderate in both groups. Angiogenesis and many odontoblast-like cells, responsible for dentin bridge formation, were observed. Necrosis was not observed in any case, nor were bacteria present in the pulp. Conclusion. Histological analysis indicated a favorable therapeutic effect of Emdogain? Gel in direct pulp capping of Vietnamese pigs. Pulp reaction was similar to that of MTA?.

scholarly journals Induction of reparative dentin by calcium silicate-based material as direct pulp capping agent

2019 ◽  
Vol 12 (4) ◽  
pp. 182-186
Author(s):  
Mozammal Hossain ◽  
Mahmood Sajedeen ◽  
Yukio Nakamura
Keyword(s):  
Calcium Hydroxide ◽  
Calcium Silicate ◽  
Normal Function ◽  
Direct Pulp Capping ◽  
Pulp Tissue ◽  
Pulp Capping ◽  
Exposure Site ◽  
Reparative Dentin ◽  
Dentin Formation ◽  
Reparative Dentin Formation

This study was performed to examine whether calcium silicate could induce reparative dentin formation without eliciting any adverse effect in direct pulp capping of premolar teeth. Twenty participants who need extraction of their 4 healthy permanent premolar teeth for orthodontic reasons were included in this study. Following the surgical procedure, the exposed pulp tissue was treated either with calcium silicate or covered with calcium hydroxide paste. On day 3, 7, 14 and 28, the experimental teeth was extracted and examined using light microscopy and histometric analysis to observe the inflammatory changes and the amount of reparative dentin formation. The results showed that in the calcium silicate treated teeth, substantial amounts of dentine-like tissue was formed on day 14 and mostly located on the exposure site. It was also observed in the calcium hydroxide treated teeth but dentin-like tissue located at a distance from the exposure site. The total amount of reparative dentine formed in the calcium silicate-treated teeth was significantly higher (p<0.005) than in the calcium hydroxide-treated specimens. In conclusion that the calcium silicate indices pulpal wound healing and reparative formation in the exposed teeth without affecting the normal function of the remaining pulp.

scholarly journals Histological evaluation of tissue reactions to newly synthetized calcium silicate- and hydroxyapatite-based bioactive materials: in vivo study

2017 ◽  
Vol 145 (7-8) ◽  
pp. 370-377 ◽  
Author(s):  
Vanja Opacic-Galic ◽  
Violeta Petrovic ◽  
Vukoman Jokanovic ◽  
Slavoljub Zivkovic
Keyword(s):  
Inflammatory Reaction ◽  
Calcium Silicate ◽  
Subcutaneous Tissue ◽  
Male Rats ◽  
Histological Evaluation ◽  
Direct Pulp Capping ◽  
Pulp Tissue ◽  
Pulp Capping ◽  
Tissue Reactions

Introduction/Objective. Development of materials which could be used as biological bone substitutes is one of the most valuable and active fields of biomaterial research. The goal of the study was to research the reaction of tissue on calcium silicate- (CS) and hydroxyapatitebased (CS-HA) newly synthesized nanomaterials, after being implanted into the subcutaneous tissue of a rats and direct pulp capping of rabbit teeth. Methods. The tested materials were implanted in 40 Wistar male rats, sacrificed after seven, 15, 30, and 60 days. The direct pulp capping was performed on the teeth of rabbits. Cavities were prepared on the vestibular surface of the incisors. The animals were sacrificed after 10 and 15 days. The control material was mineral trioxide aggregate (MTA). Histological analysis covered the tracking of inflammatory reaction cellular components, presence of gigantic cells, and necrosis of the tissue. Results. Seven days after the implantation, the strongest inflammatory response was given by the MTA (3.3 ?} 0.48), while CS and CS-HA scored 3 ? 0.71. After 60 days, the rate of inflammatory reactions dropped, which was the least visible with CS-HA (0.2 ? 0.45). The least visible inflammatory reaction of the rabbits? pulp tissue was spotted with the CS (1.83 ? 0.75), than with the MTA and CS-HA (2.67 ? 1.53, 3 ? 0.63). Conclusion. The newly synthesized materials caused a slight reaction of the subcutaneous tissue. CS-HA showed the best tissue tolerance. Nanostructural biomaterials caused a slight to moderate inflammatory reaction of the rabbits? pulp tissue only in the immediate vicinity of the implanted material.

scholarly journals 1548. Association of bacterial colonization in ulcerative lesions of the diabetic foot together with the cicatrization process

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S773-S775
Author(s):  
Alexander A Ozoria Loveras ◽  
Jacques Paré Espinal ◽  
David de luna ◽  
Noemi Acevedo
Keyword(s):  
Diabetic Foot ◽  
Bacterial Colonization ◽  
Healing Process ◽  
Foot Ulcer ◽  
Primary Source ◽  
Diabetic Foot Ulcer ◽  
Care Program ◽  
Antimicrobial Treatment ◽  
Control Group ◽  
Experimental Group

Abstract Background In 2018, a review of the scientific literature identifed biofilm studies in the past 3 years. Wherein, the role of the biofilm in the progression of the diabetic foot ulcer with the presence of biofilm is reviewed. As a result, tissue sampling is more effective than transcure, Levin, and aspiration. A study in Cuba evaluate the effectiveness of a new proposal for antimicrobial treatment in patients with diabetic foot infection in 2017. The method used was a experimental type of two groups. The control group, was treated with the treatment scheme proposed in the Comprehensive Care Program for the patient with diabetic foot ulcer (PAIPUPD). Instead, the other experimental group was treated according to the scheme based on the local microbial map. They used a random distribution. Using the Wagner classification, there were patients classificate with a grade of W2 (13% of patients), W3 (66%) and W4 (12%). The most frequent germs found were Staphylococcus aureus, Escherichia coli and Enterobacter sp. The experimental group required less days with hospitalization. Methods This is an observational study of primary source with a non-probability sample with 58 patients. Adult patients diagnosed with type 2 diabetes mellitus, with diabetic foot, Wagner classification 1, 2 and 3, who attended the healing area of the Institute of Diabetes of Santiago were included. After identifying the colonized pathogen, its cicatrization process was evaluate for four weeks. Results Of the total sample, 12.07% belonged to Wagner 1, 43.1% to Wagner 2 and 44.83% to the Wagner 3 classification. In the case of the Wagner 3 group, S. aureus and Pseudomona aeruginosa were present in 6 cases. Despite the infectious processes detected by the culture, the patients showed a successful cicatrization process after four weeks of evaluation. Graph 1: Isolated Microorganism Vs Wagner’s Degree (n=60) Graph 2: Gram positive microorganism vs. healing process per week in patients with diabetic foot (n=22) Graph 3: Gram-negative microorganism vs. healing process (n=33) Conclusion During the four weeks of clinical evaluation, more than 88% of patients progressed positively to clinical recovery, regardless of the type of bacteria colonized and/or their resistance to antibiotics. Disclosures All Authors: No reported disclosures

scholarly journals Clinical and Histological Evaluation of Direct Pulp Capping on Human Pulp Tissue Using a Dentin Adhesive System

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Alicja Nowicka ◽  
Ryta Łagocka ◽  
Mariusz Lipski ◽  
Mirosław Parafiniuk ◽  
Katarzyna Grocholewicz ◽  
...  
Keyword(s):  
Calcium Hydroxide ◽  
Third Molar ◽  
Adhesive System ◽  
Histological Evaluation ◽  
Control Group ◽  
Single Bond ◽  
Pulp Tissue ◽  
Pulp Capping ◽  
Hydroxide Group ◽  
Dentin Adhesive

Objective. This study presents a clinical and histological evaluation of human pulp tissue responses after direct capping using a new dentin adhesive system. Methods. Twenty-eight caries-free third molar teeth scheduled for extraction were evaluated. The pulps of 22 teeth were mechanically exposed and randomly assigned to 1 of 2 groups: Single Bond Universal or calcium hydroxide. Another group of 6 teeth acted as the intact control group. The periapical response was assayed, and a clinical examination was performed. The teeth were extracted after 6 weeks, and a histological analysis was performed. The pulp status was assessed, and the thickness of the dentin bridge was measured and categorized using a histological scoring system. Results. The clinical phase was asymptomatic for Single Bond Universal patients. Patients in the calcium hydroxide group reported mild symptoms of pain, although the histological examination revealed that dentin bridges with or without limited pulpitis had begun forming in each tooth. The universal adhesive system exhibited nonsignificantly increased histological signs of pulpitis (P>0.05) and a significantly weaker thin mineralized tissue layer (P<0.001) compared with the calcium hydroxide group. Conclusion. The results suggest that Single Bond Universal is inappropriate for human pulp capping; however, further long-term studies are needed to determine the biocompatibility of this agent.

scholarly journals Propolis extract as pulp capping material enhances odontoblast-like cell thickness and type 1 collagen expression (in vivo)

2020 ◽  
Vol 53 (1) ◽  
pp. 1
Author(s):  
Ira Widjiastuti ◽  
Ari Subiyanto ◽  
Evri Kusumah Ningtyas ◽  
Rendy Popyandra ◽  
Michael Golden Kurniawan ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Glass Ionomer Cement ◽  
Control Group ◽  
Propolis Extract ◽  
Pulp Capping ◽  
Collagen Expression ◽  
Group I ◽  
Significant Difference ◽  
Cell Thickness

Background: Propolis is a natural biocompatible material that has been widely studied in dentistry because of its inflammatory, anti-microbial and immunomodulatory properties. One of the active components is caffeic acid phenethyl ester (CAPE). CAPE is effective in stimulating collagen as well as inhibiting the inflammation and degeneration of dental pulp. Purpose: To investigate the post-administration of propolis extract as pulp capping material enhances odontoblast-like cell thickness and type 1 collagen expression in Wistar rats (Rattus Norvegicus) Methods: This research was a true experimental design with a posttest-only control group design. Sixty-three Wistar rats were randomly divided into three groups, with each group consisting of 21 rats: Group I: Positive control; no capping material was administered; Group II: CAPE was administered; Group III: 11% of the propolis extract was administered. All samples were filled with glass ionomer cement. Seven rats from each group were sacrificed after days 7, 14 and 28 of post-pulp capping administration, and their afflicted teeth were subsequently extracted for histologic analysis. Results: No significant difference was seen in odontoblast-like cell thickness after the application of CAPE and propolis on days 7 and 14 (p > 0.05). However, a significant difference was noticed on day 28 (p < 0.05), with the thickness of odontoblast-like cell in CAPE being thinner than that in propolis. A significant difference in the expression of type 1 collagen was observed on days 7, 14 and 28 after the application of the propolis extract compared with CAPE (p < 0.05). Conclusion: The post-administration of propolis extract as a pulp capping material could enhance odontoblast-like cell thickness and type 1 collagen expression in Wistar rats.

scholarly journals Biological Characteristics and Odontogenic Differentiation Effects of Calcium Silicate-Based Pulp Capping Materials

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4661
Author(s):  
Yemi Kim ◽  
Donghee Lee ◽  
Hye-Min Kim ◽  
Minjoo Kye ◽  
Sin-Young Kim
Keyword(s):  
Cell Viability ◽  
Calcium Silicate ◽  
Cell Attachment ◽  
Biological Properties ◽  
Cell Counting ◽  
Control Group ◽  
Runx2 Expression ◽  
Pulp Capping ◽  
Alp Activity ◽  
Odontogenic Differentiation

We compared calcium silicate-based pulp capping materials to conventional calcium hydroxide in terms of their biological properties and potential effects on odontogenic differentiation in human dental pulp stem cells (hDPSCs). We cultured hDPSCs on disks (7-mm diameter, 4-mm high) of ProRoot MTA (Dentsply Tulsa Dental Specialties), Biodentine (Septodont), TheraCal LC (Bisco), or Dycal (Dentsply Tulsa Dental Specialties). Cell viability was assessed with cell counting (CCK) and scanning electron microscopy (SEM). Odontogenic activity was assessed by measuring alkaline phosphatase (ALP) activity and gene expression (quantitative real-time PCR). CCK assays showed that Dycal reduced cell viability compared to the other materials (p < 0.05). SEM showed low and absent cell attachment on TheraCal LC and Dycal disks, respectively. hDPSCs exposed to TheraCal LC and Dycal showed higher ALP activity on day 6 than the control group (p < 0.05). The day-9 Runx2 expression was higher in the ProRoot MTA and TheraCal LC groups than in the control group (p < 0.05). On day 14, the ProRoot MTA group showed the highest dentin sialophosphoprotein levels (not significant; p > 0.05). In conclusion, various pulp capping materials, except Dycal, exhibited biological properties favorable to hDPSC viability. ProRoot MTA and TheraCal LC promoted higher Runx2 expression than Biodentine. Future studies should explore the odontogenic potential of pulp capping materials.

scholarly journals Clinical Study of Acupotomy Trinity Lysis on Cervical Spondylotic Myelopathy with Liver and Kidney Deficiency Syndrome

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Jianyong Gao ◽  
Yi Zhao ◽  
Tinglan Sun ◽  
Weike Liu ◽  
Zhenguo Wang
Keyword(s):  
Treatment Group ◽  
Cervical Spondylotic Myelopathy ◽  
Deficiency Syndrome ◽  
Control Group ◽  
Therapeutic Effects ◽  
Kidney Deficiency ◽  
Significant Difference ◽  
Before And After ◽  
Liver And Kidney ◽  
Experimental Group

Objective: To compare the therapeutic effects of acupotomy trinity lysis and traditional acupotomy on cervical spondylotic myelopathy. Methods: A total of 205 patients with cervical spondylotic myelopathy of liver and kidney deficiency syndrome were randomly divided into the experimental group (105 cases) and the control group (100 cases). The experimental group was relaxed with acupotomy in three positions: Heaven (tian), Human (ren) and Earth (di). Traditional acupotomy was used to relax Ashi acupoints of the affected vertebra in the control group. One treatment was conducted in one week, and the duration of one course of treatment was three weeks. The VAS, JOA score and NDI index were observed after treatment.  Results: Before and after treatment, the total treatment efficiency of the treatment group was 95.23%, and that of the control group was 80.00%, there was significant difference between the two groups, P<0.05; Before operation, there was no significant difference in JOA score, NDI index score, and VAS score between the treatment group and the control group (P>0.05); there was no significant difference after 1 week (P>0.05), but there were significant differences between the two groups 2 weeks and 3 weeks after operation (P<0.05). Conclusion: Acupotomy trinity lysis is a safe, effective and economical treatment for cervical spondylotic myelopathy.

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