J. Popović, T. Cvetković, T. Džopalić, A. Mitić, Marija Nikolić, Radomir Barac, S. Živković
Introduction. The balance between proinflammatory and anti-inflammatory cytokines plays an important role in the pathogenesis of chronic periapical lesions. The aim of this study was to determine the concentration of TNF-α in tissue homogenates of periapical lesions and analyze its levels in relation to the symptomatology and the size of lesions. Materials and Methods. 93 samples of chronic periapical lesions were obtained after extraction of teeth. Samples were classified according to the clinical presentation as symptomatic and asymptomatic, and according to the size as large and small. The concentration of TNF-α was analyzed using ELISA. Results. The results showed increased production of TNF-α in symptomatic lesions compared to asymptomatic. Higher concentration of TNF-α was demonstrated in large lesions compared to small. Large symptomatic lesions showed greater concentration of TNF-α compared to small symptomatic lesions, while bigger asymptomatic lesions demonstrated higher amount of the cytokines compared to small asymptomatic lesions. Conclusion. Higher concentration of TNF-α in large symptomatic lesions indicates that TNF-α is an important factor responsible for the progression of lesions.
{"title":"The concentration of tumor necrosis factor alpha in periapical lesions","authors":"J. Popović, T. Cvetković, T. Džopalić, A. Mitić, Marija Nikolić, Radomir Barac, S. Živković","doi":"10.2298/SGS1401007P","DOIUrl":"https://doi.org/10.2298/SGS1401007P","url":null,"abstract":"Introduction. The balance between proinflammatory and anti-inflammatory cytokines plays an important role in the pathogenesis of chronic periapical lesions. The aim of this study was to determine the concentration of TNF-α in tissue homogenates of periapical lesions and analyze its levels in relation to the symptomatology and the size of lesions. Materials and Methods. 93 samples of chronic periapical lesions were obtained after extraction of teeth. Samples were classified according to the clinical presentation as symptomatic and asymptomatic, and according to the size as large and small. The concentration of TNF-α was analyzed using ELISA. Results. The results showed increased production of TNF-α in symptomatic lesions compared to asymptomatic. Higher concentration of TNF-α was demonstrated in large lesions compared to small. Large symptomatic lesions showed greater concentration of TNF-α compared to small symptomatic lesions, while bigger asymptomatic lesions demonstrated higher amount of the cytokines compared to small asymptomatic lesions. Conclusion. Higher concentration of TNF-α in large symptomatic lesions indicates that TNF-α is an important factor responsible for the progression of lesions.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"53 1","pages":"7-13"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84491703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Accidental discovery of a foreign object embedded in a tooth is not common. Children often have a habit of inserting objects into their mouth. Some of these objects can be accidentally ingested or even aspirated which can be a very frightening and a stressful experience. Herein, we report a case of a 7-year-old boy who presented with a stapler pin lodged in the root canal space of maxillary left deciduous central incisor.
{"title":"An unusual incidental radiographic finding - a stapler pin: A case report","authors":"Smita Kamtane, Monali Ghodke","doi":"10.2298/SGS1401045K","DOIUrl":"https://doi.org/10.2298/SGS1401045K","url":null,"abstract":"Accidental discovery of a foreign object embedded in a tooth is not common. Children often have a habit of inserting objects into their mouth. Some of these objects can be accidentally ingested or even aspirated which can be a very frightening and a stressful experience. Herein, we report a case of a 7-year-old boy who presented with a stapler pin lodged in the root canal space of maxillary left deciduous central incisor.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"43 1","pages":"45-48"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78971127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bojana Davidovic, M. Ivanović, S. Jankovic, Jelena Lečić
Introduction. Caries and periodontal disease are the most common diseases afflicting oral tissues. Insufficient knowledge of the causes of these diseases leads to inappropriate behavior of patients towards their own oral health. The aim of this study was to determine the level of oral hygiene and its effect on the prevalence of dental caries in schoolchildren in Foca. Material and Methods. The study included 239 schoolchildren, 12 years old of both genders, attending four elementary schools in Foca. To assess their oral health methodology and criteria of the World Health Organization were used. Carious teeth were recorded and oral hygiene evaluated in accordance with Oral Hygiene Index. A questionnaire was used to obtain information about oral hygiene habits, reasons for dental visits as well as the number of dental visits. Results. The average number of affected teeth in the analyzed population was 5.43 and the average value of Oral Hygiene Index was 0.93. Good oral hygiene was noticed in 75% of respondents. Most respondents had at least one dental visit. Toothache was the most common reason for dental visit while the distance from clinics and fear of intervention were the most common reasons for not visiting dentist. Conclusion. In this part of Podrinje children had an average of more than five carious permanent teeth. Examined children from rural areas had poorer oral health, as well as lower number of visits to the health facilities compared to their peers in urban areas. Given that the most of examined children (75%) had good oral hygiene, other factors that led to significant number of carious teeth must be determined.
{"title":"The effect of oral hygiene on the caries prevalence among schoolchildren in Foča","authors":"Bojana Davidovic, M. Ivanović, S. Jankovic, Jelena Lečić","doi":"10.2298/SGS1403127D","DOIUrl":"https://doi.org/10.2298/SGS1403127D","url":null,"abstract":"Introduction. Caries and periodontal disease are the most common diseases afflicting oral tissues. Insufficient knowledge of the causes of these diseases leads to inappropriate behavior of patients towards their own oral health. The aim of this study was to determine the level of oral hygiene and its effect on the prevalence of dental caries in schoolchildren in Foca. Material and Methods. The study included 239 schoolchildren, 12 years old of both genders, attending four elementary schools in Foca. To assess their oral health methodology and criteria of the World Health Organization were used. Carious teeth were recorded and oral hygiene evaluated in accordance with Oral Hygiene Index. A questionnaire was used to obtain information about oral hygiene habits, reasons for dental visits as well as the number of dental visits. Results. The average number of affected teeth in the analyzed population was 5.43 and the average value of Oral Hygiene Index was 0.93. Good oral hygiene was noticed in 75% of respondents. Most respondents had at least one dental visit. Toothache was the most common reason for dental visit while the distance from clinics and fear of intervention were the most common reasons for not visiting dentist. Conclusion. In this part of Podrinje children had an average of more than five carious permanent teeth. Examined children from rural areas had poorer oral health, as well as lower number of visits to the health facilities compared to their peers in urban areas. Given that the most of examined children (75%) had good oral hygiene, other factors that led to significant number of carious teeth must be determined.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"13 1","pages":"127-133"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75198845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
O. Janković, A. Arbutina, N. Knežević, R. Arbutina
Introduction. Increasing requirements for durable fillings and marginal integrity have influenced the development of new materials and restorative techniques. Contemporary demands for esthetic restorations have encouraged the development of new composite material “self-etch flowable composite”. The aim of this study was to test the marginal seal in small Class V cavities after restoration with self etch flowable composite material Vertise Flow and flowable composite Tetric Flow, both polymerised using conventional light-curing technique. Material and Methods. The study was conducted on 40 extracted human teeth (20 intact, 20 carious). Each group included 10 premolars and 10 molars. In all teeth two cavities class V of diameter 3×2×2 mm were prepared (buccal and lingual surface). On the buccal surface the cavities were filled with self etch flowable composite Vertise Flow (Kerr Dental Products), and on the lingual surface with flowable composite Tetric Flow (Ivoclar Vivadent) using appropriate adhesive system. Polymerisation was performed using LED lamp (Ivoclar Vivadent). Microleakage was tested with silver nitrate solution. Using stereoloupe with micrometer scale and six times magnification dye penetration was measured. Results. Mean dye penetration in intact molars restored with Vertise Flow was 3.41 μm, while in intact molars restored with Tetric Flow it was 4.23 μm. In intact premolars restored with Vertise Flow, the average dye penetration was 1.14 μm and in intact premolars restored with Tetric Flow it was 3.90 μm. Dye penetration in carious molars restored with Vertise Flow and polymerised using conventional polymerization technique was 3.66 μm, while using Tetric Flow it was 7.94 μm. In carious premolars restored with Vertise Flow dye penetration was 3.97 μm, while with Tetric Flow it was 7.12 μm. The total dye penetration was lower in intact compared to carious teeth. Greater dye penetration was found in molars compared to premolars. Conclusion. Vertise Flow showed better quality of bond with hard dental tissue than Tetric Flow when classical polymerization technique was used.
{"title":"Microleakage of Class V Cavities Restored with Flowable Composite Materials","authors":"O. Janković, A. Arbutina, N. Knežević, R. Arbutina","doi":"10.2298/SGS1402075J","DOIUrl":"https://doi.org/10.2298/SGS1402075J","url":null,"abstract":"Introduction. Increasing requirements for durable fillings and marginal integrity have influenced the development of new materials and restorative techniques. Contemporary demands for esthetic restorations have encouraged the development of new composite material “self-etch flowable composite”. The aim of this study was to test the marginal seal in small Class V cavities after restoration with self etch flowable composite material Vertise Flow and flowable composite Tetric Flow, both polymerised using conventional light-curing technique. Material and Methods. The study was conducted on 40 extracted human teeth (20 intact, 20 carious). Each group included 10 premolars and 10 molars. In all teeth two cavities class V of diameter 3×2×2 mm were prepared (buccal and lingual surface). On the buccal surface the cavities were filled with self etch flowable composite Vertise Flow (Kerr Dental Products), and on the lingual surface with flowable composite Tetric Flow (Ivoclar Vivadent) using appropriate adhesive system. Polymerisation was performed using LED lamp (Ivoclar Vivadent). Microleakage was tested with silver nitrate solution. Using stereoloupe with micrometer scale and six times magnification dye penetration was measured. Results. Mean dye penetration in intact molars restored with Vertise Flow was 3.41 μm, while in intact molars restored with Tetric Flow it was 4.23 μm. In intact premolars restored with Vertise Flow, the average dye penetration was 1.14 μm and in intact premolars restored with Tetric Flow it was 3.90 μm. Dye penetration in carious molars restored with Vertise Flow and polymerised using conventional polymerization technique was 3.66 μm, while using Tetric Flow it was 7.94 μm. In carious premolars restored with Vertise Flow dye penetration was 3.97 μm, while with Tetric Flow it was 7.12 μm. The total dye penetration was lower in intact compared to carious teeth. Greater dye penetration was found in molars compared to premolars. Conclusion. Vertise Flow showed better quality of bond with hard dental tissue than Tetric Flow when classical polymerization technique was used.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"14 1","pages":"75-83"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77589679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sanja Ilic, Aleksandra Djeri, Ljubica Pašagić, Verica Pavlić, O. Janković
Introduction. Oral health of mentally disabled people in Republika Srpska is on very low level. The greatest number of these persons is often edentulous or with a small number of teeth with extensive caries, high DMFT index and severe periodontal diseases. The aim of this study was to determine oral health status of people with mental disabilities in the municipality of Banja Luka. Material and Methods. Study included 95 patients (45 females and 50 males), aged 15 to 45 years. The subjects were divided into two groups according to the degree of mental impairment: ICD-10 F71 (65 respondents) and F72 (30 respondents). Dental assessment included: number of present teeth, presence of caries, restorations, number of extracted teeth, presence of residual roots, fractures, presence and number of fixed restorations, gingival and plaque index. Results. The mean DMFT index in patients with severe mental disability was high (17.4), while it was 12.3 in patients with mild disability. The mean value of person caries index (PCI) was 100%. In addition, the mean value of teeth caries index (TCI) in severely disabled persons was 58.1 whereas in those with mild intellectual disability it was 42.4. Average caries index (ACI) in patients with severe mental disability was 16.9 while in the group of patients with mild disability this value was 10.2. Plaque index in severely disabled people was 2.4, while in the second group (mild disability) it was 1.9. Gingival index in patients with severe mental disability was 1.8 and in mild disability group it was 1.3. Conclusion. People with mental disabilities in the municipality of Banjaluka have poor oral health. They do not have habits, attitudes and behavior towards oral health.
{"title":"Oral health status of people with mental disabilities in the municipality of Banja Luka","authors":"Sanja Ilic, Aleksandra Djeri, Ljubica Pašagić, Verica Pavlić, O. Janković","doi":"10.2298/SGS1401021I","DOIUrl":"https://doi.org/10.2298/SGS1401021I","url":null,"abstract":"Introduction. Oral health of mentally disabled people in Republika Srpska is on very low level. The greatest number of these persons is often edentulous or with a small number of teeth with extensive caries, high DMFT index and severe periodontal diseases. The aim of this study was to determine oral health status of people with mental disabilities in the municipality of Banja Luka. Material and Methods. Study included 95 patients (45 females and 50 males), aged 15 to 45 years. The subjects were divided into two groups according to the degree of mental impairment: ICD-10 F71 (65 respondents) and F72 (30 respondents). Dental assessment included: number of present teeth, presence of caries, restorations, number of extracted teeth, presence of residual roots, fractures, presence and number of fixed restorations, gingival and plaque index. Results. The mean DMFT index in patients with severe mental disability was high (17.4), while it was 12.3 in patients with mild disability. The mean value of person caries index (PCI) was 100%. In addition, the mean value of teeth caries index (TCI) in severely disabled persons was 58.1 whereas in those with mild intellectual disability it was 42.4. Average caries index (ACI) in patients with severe mental disability was 16.9 while in the group of patients with mild disability this value was 10.2. Plaque index in severely disabled people was 2.4, while in the second group (mild disability) it was 1.9. Gingival index in patients with severe mental disability was 1.8 and in mild disability group it was 1.3. Conclusion. People with mental disabilities in the municipality of Banjaluka have poor oral health. They do not have habits, attitudes and behavior towards oral health.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"122 1","pages":"21-29"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89639572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Introduction. Despite the development of restorative dentistry bond between materials and hard dental tissues is still not satisfying and often leads to marginal discoloration, microleakage, secondary caries and postoperative sensitivity. The aim of this study was to examine the clinical efficacy of different liners and oxalate-based desensitizer in preventing the occurrence of postoperative sensitivity. Material and Methods. This clinical study included 120 patients in which two homologous contralateral posterior teeth were restored with composite material and different liners. Patients were divided in three groups, depending on applied liner. In each patient, before the application of composite material in one tooth the liner was placed, while in the other tooth both the desensitizer and the same liner were used. The following liners were used: Calcimol LC, ANA Liner, Fuji II LC; desensitizer: BisBlock and composite material: Ceram-X Mono. Results. Teeth restored using Calcimol LC were the most sensitive after treatment whereas teeth restored with Fuji II LC showed the least postoperative sensitivity (Calcimol LC > ANA Liner > Fuji II LC). In the group of teeth restored with BisBlock postoperative sensitivity was observed in 6.7% restorations, while in the group where desensitizer was not used, sensitivity was noted in 15.8% of cases. There was statistically significant difference in the incidence of postoperative sensitivity between the group where desensitizer was used vs. group where it was not used (p<0.05). Conclusion. Glass-ionomer cement is more efficient in preventing postoperative sensitivity compared to compomer and light-curable calcium hydroxide in posterior composite restorations. The use of desensitizer reduced significantly the incidence of postoperative sensitivity.
介绍。尽管口腔修复技术不断发展，但材料与牙硬组织之间的结合仍不理想，经常导致边缘变色、微渗漏、继发性龋齿和术后敏感。本研究的目的是探讨不同衬垫和草酸盐脱敏剂在预防术后敏感性发生方面的临床疗效。材料和方法。本临床研究包括120例患者，采用复合材料和不同衬套修复2个同源对侧后牙。根据使用的衬里将患者分为三组。在每个患者中，在将复合材料应用于一颗牙齿之前放置衬垫，而在另一颗牙齿中同时使用脱敏剂和相同的衬垫。采用的衬垫有:calcalmol LC、ANA Liner、Fuji II LC;脱敏剂:BisBlock和复合材料:ceramo - x Mono。结果。calcalmol LC修复的牙齿术后敏感性最高，Fuji II LC修复的牙齿术后敏感性最低(calcalmol LC > ANA Liner > Fuji II LC)。BisBlock修复组术后敏感率为6.7%，未使用脱敏剂组术后敏感率为15.8%。使用脱敏剂组与未使用脱敏剂组术后敏感性发生率比较，差异有统计学意义(p<0.05)。结论。与复合材料和光固化氢氧化钙相比，玻璃离聚体水泥在预防术后敏感性方面更有效。使用脱敏剂可显著降低术后敏感性的发生率。
{"title":"Prevention of postoperative sensitivity in composite restorations","authors":"Lado Davidović, Igor Radovic, Jelena Krunić","doi":"10.2298/SGS1402084D","DOIUrl":"https://doi.org/10.2298/SGS1402084D","url":null,"abstract":"Introduction. Despite the development of restorative dentistry bond between materials and hard dental tissues is still not satisfying and often leads to marginal discoloration, microleakage, secondary caries and postoperative sensitivity. The aim of this study was to examine the clinical efficacy of different liners and oxalate-based desensitizer in preventing the occurrence of postoperative sensitivity. Material and Methods. This clinical study included 120 patients in which two homologous contralateral posterior teeth were restored with composite material and different liners. Patients were divided in three groups, depending on applied liner. In each patient, before the application of composite material in one tooth the liner was placed, while in the other tooth both the desensitizer and the same liner were used. The following liners were used: Calcimol LC, ANA Liner, Fuji II LC; desensitizer: BisBlock and composite material: Ceram-X Mono. Results. Teeth restored using Calcimol LC were the most sensitive after treatment whereas teeth restored with Fuji II LC showed the least postoperative sensitivity (Calcimol LC > ANA Liner > Fuji II LC). In the group of teeth restored with BisBlock postoperative sensitivity was observed in 6.7% restorations, while in the group where desensitizer was not used, sensitivity was noted in 15.8% of cases. There was statistically significant difference in the incidence of postoperative sensitivity between the group where desensitizer was used vs. group where it was not used (p<0.05). Conclusion. Glass-ionomer cement is more efficient in preventing postoperative sensitivity compared to compomer and light-curable calcium hydroxide in posterior composite restorations. The use of desensitizer reduced significantly the incidence of postoperative sensitivity.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"102 1","pages":"84-92"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88995351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Aleksić, Ivana Stevanović, Milena Gajic-Stevanovic
Health institutions have the most complex organization and management among all institutions. Unlike traditional management in organizational systems characterized by analytical and interdisciplinary approach, health institution management is characterized by trans-disciplinary approach to solving business problems. Introduction of quality improvement is a challenge for health care managers due to their responsibility to create an environment that will lead to quality improvement and safety of health services. New Health care Act (2005) has created a legal framework for defining quality indicators, and setting up various committees and bodies in order to improve the quality of health care. As the planning, management and quality control are the most important parameters of the health system development, health manager must be a leader with exceptional communication skills and able to apply his knowledge and skills in the management of resources. Top managers, central type and lower level managers must be the driving force of their institutions creating the basis for activities related to quality. They should have a proper education as well. New concept of management emphasizes people and their specialized knowledge. Past practice in Serbia did not show significant improvements in the management process through the knowledge and skills of managers, especially in terms of strategic decision-making in the operation and development of the health system.
{"title":"The role of managers in improving the health care system in Serbia","authors":"J. Aleksić, Ivana Stevanović, Milena Gajic-Stevanovic","doi":"10.2298/SGS1403142A","DOIUrl":"https://doi.org/10.2298/SGS1403142A","url":null,"abstract":"Health institutions have the most complex organization and management among all institutions. Unlike traditional management in organizational systems characterized by analytical and interdisciplinary approach, health institution management is characterized by trans-disciplinary approach to solving business problems. Introduction of quality improvement is a challenge for health care managers due to their responsibility to create an environment that will lead to quality improvement and safety of health services. New Health care Act (2005) has created a legal framework for defining quality indicators, and setting up various committees and bodies in order to improve the quality of health care. As the planning, management and quality control are the most important parameters of the health system development, health manager must be a leader with exceptional communication skills and able to apply his knowledge and skills in the management of resources. Top managers, central type and lower level managers must be the driving force of their institutions creating the basis for activities related to quality. They should have a proper education as well. New concept of management emphasizes people and their specialized knowledge. Past practice in Serbia did not show significant improvements in the management process through the knowledge and skills of managers, especially in terms of strategic decision-making in the operation and development of the health system.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"36 1","pages":"142-148"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75071562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Stanič, V. Pavlović, V. Jokanović, Marija Živković-Sandić, S. Živković
Introduction. Calcium silicate cements are most commonly used materials in endodontics for many indications due to their exceptional biological and physical properties. The aim of this study was to assess solubility and porosity of new experimental nanostructured calcium silicate cement. Material and Methods. A novel nanostructured calcium silicate cement (CS), commercialized calcium silicate cement (Biodentin), traditional glass ionomer cement (GIC) (Micron Superior) and resin-reinforced glass ionomer cement (Fuji VIII) were used in this study. All materials were prepared as per manufactuers’ instructions, placed in metal rings of 16Ч2 mm diameter and kept in an incubator at 37°C for 24 hours. After that they were weighed and put in plastic containers filled with 25 ml of water for additional 24 hours. Then after all samples were weighed again and resorption and solubility were calculated. Results. The highest solubility was found for new CS cement (12.45) followed by conventional GIC Micron Superior (11.5) and Biodentin (6.1) whereas the lowest solubility was for resin reinforced GIC Fuji VIII (3.8). These differences were statistically significant (p<0.005). The highest absorption was also observed in new CS cement (24.15), followed by Biodentin (18.5) and Micron superior (17.95) while the lowest was for GIC Fuji VIII (7.75). These differences were also statistically significant except between Micron Superior and Biodentin. Conclusion. Solubility and porosity of new nanostructured calcium silicate cement were significantly higher than for traditional calcium silicate cement, traditional GIC and resin-reinforced GIC.
{"title":"Solubility and porosity of new nanostructured calcium silicate cement","authors":"T. Stanič, V. Pavlović, V. Jokanović, Marija Živković-Sandić, S. Živković","doi":"10.2298/SGS1404190S","DOIUrl":"https://doi.org/10.2298/SGS1404190S","url":null,"abstract":"Introduction. Calcium silicate cements are most commonly used materials in endodontics for many indications due to their exceptional biological and physical properties. The aim of this study was to assess solubility and porosity of new experimental nanostructured calcium silicate cement. Material and Methods. A novel nanostructured calcium silicate cement (CS), commercialized calcium silicate cement (Biodentin), traditional glass ionomer cement (GIC) (Micron Superior) and resin-reinforced glass ionomer cement (Fuji VIII) were used in this study. All materials were prepared as per manufactuers’ instructions, placed in metal rings of 16Ч2 mm diameter and kept in an incubator at 37°C for 24 hours. After that they were weighed and put in plastic containers filled with 25 ml of water for additional 24 hours. Then after all samples were weighed again and resorption and solubility were calculated. Results. The highest solubility was found for new CS cement (12.45) followed by conventional GIC Micron Superior (11.5) and Biodentin (6.1) whereas the lowest solubility was for resin reinforced GIC Fuji VIII (3.8). These differences were statistically significant (p<0.005). The highest absorption was also observed in new CS cement (24.15), followed by Biodentin (18.5) and Micron superior (17.95) while the lowest was for GIC Fuji VIII (7.75). These differences were also statistically significant except between Micron Superior and Biodentin. Conclusion. Solubility and porosity of new nanostructured calcium silicate cement were significantly higher than for traditional calcium silicate cement, traditional GIC and resin-reinforced GIC.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"50 1","pages":"190-195"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75141824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Irena Kuzmanovic-Radman, Aleksandra Djeri, Adriana Arbutina, O. Janković, Renata Josipović, N. Knežević
Introduction. Indirect pulp capping is a therapeutic intervention in the treatment of deep carious lesion in order to stimulate odontoblasts to produce tertiary dentin using different biomaterials based mainly on calcium hydroxide. The aim of this study was to assess the effect of hard-setting (Dycal) and a suspension of calcium hydroxide (Calcipulp) in the treatment of deep carious lesion (caries profunda). Materials and Methods. Clinical study included 29 patients of both genders, age 16 to 40, and 45 teeth of different morphological groups with verified caries profunda using clinical and radiographic examination. After the cavity preparation, calcium hydroxide materials (Dycal or Calcipulp) were applied on the pulpal wall and cavities temporarily restored (phosphate cement) for the period of two months. After this period cavities were restored with composite materials and clinically observed during twelve months, with mandatory check-ups after three and six months. Results. Obtained results showed that indirect pulp capping using calcium hydroxide suspension (90.0%) was more successful than hard-setting material (84.0%), but with no statistically significant difference. Conclusion. Suspension and hard-setting calcium hydroxide were equally successful in the treatment of caries profunda.
{"title":"Indirect pulp capping using different calcium hydroxide products: A clinical study","authors":"Irena Kuzmanovic-Radman, Aleksandra Djeri, Adriana Arbutina, O. Janković, Renata Josipović, N. Knežević","doi":"10.2298/SGS1401030K","DOIUrl":"https://doi.org/10.2298/SGS1401030K","url":null,"abstract":"Introduction. Indirect pulp capping is a therapeutic intervention in the treatment of deep carious lesion in order to stimulate odontoblasts to produce tertiary dentin using different biomaterials based mainly on calcium hydroxide. The aim of this study was to assess the effect of hard-setting (Dycal) and a suspension of calcium hydroxide (Calcipulp) in the treatment of deep carious lesion (caries profunda). Materials and Methods. Clinical study included 29 patients of both genders, age 16 to 40, and 45 teeth of different morphological groups with verified caries profunda using clinical and radiographic examination. After the cavity preparation, calcium hydroxide materials (Dycal or Calcipulp) were applied on the pulpal wall and cavities temporarily restored (phosphate cement) for the period of two months. After this period cavities were restored with composite materials and clinically observed during twelve months, with mandatory check-ups after three and six months. Results. Obtained results showed that indirect pulp capping using calcium hydroxide suspension (90.0%) was more successful than hard-setting material (84.0%), but with no statistically significant difference. Conclusion. Suspension and hard-setting calcium hydroxide were equally successful in the treatment of caries profunda.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"16 1","pages":"30-35"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90331039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Popović, J. Gašić, S. Živković, A. Mitić, Marija Nikolić, Radomir Barac
Introduction. Although many studies have reported various advantages of nickel-titanium endodontic instruments, the use of stainless steel endodontic files still presents a standard in everyday practice. The aim of this study was to evaluate ultrastructure of the surface of stainless steel endodontic instruments before and after their use. Material and Methods. Fourteen sets of non-used stainless steel endodontic reamers and files were included in the study. Each set of instruments was used one, three or six times in simulated clinical conditions on extracted maxillary premolars. After their use the instruments were subjected to cleaning and sterilization procedures. Ultrastructure of the surface of instruments was observed under scanning electron microscope (SEM). Surface analysis was performed based on the number of uses and size of instruments. The following characteristics were analyzed: defects of instrument flutes, defects of cutting edges and instrument deformations. Results. SEM analysis showed defects on the surface of non-used instruments as a result of the manufacturing process. Surface defects, defects of cutting edges as well as flutes deformations were observed after a single use and were more often noticed in small sized instruments. After three uses, flutes deformations were observed in all small sized instruments and some of the medium size. After six uses all groups of instruments showed defects of cutting edges. Conclusion. Non-used stainless steel endodontic instruments showed surface defects created by the manufacturing process. Defects of cutting edges and flutes can be observed after a single use. To minimize complications and mistakes during clinical preparation it is recommended to limit the number of instrument uses.
{"title":"Ultrastructural analysis of the surface of stainless steel endodontic instruments before and after use","authors":"J. Popović, J. Gašić, S. Živković, A. Mitić, Marija Nikolić, Radomir Barac","doi":"10.2298/sgs1404175p","DOIUrl":"https://doi.org/10.2298/sgs1404175p","url":null,"abstract":"Introduction. Although many studies have reported various advantages of nickel-titanium endodontic instruments, the use of stainless steel endodontic files still presents a standard in everyday practice. The aim of this study was to evaluate ultrastructure of the surface of stainless steel endodontic instruments before and after their use. Material and Methods. Fourteen sets of non-used stainless steel endodontic reamers and files were included in the study. Each set of instruments was used one, three or six times in simulated clinical conditions on extracted maxillary premolars. After their use the instruments were subjected to cleaning and sterilization procedures. Ultrastructure of the surface of instruments was observed under scanning electron microscope (SEM). Surface analysis was performed based on the number of uses and size of instruments. The following characteristics were analyzed: defects of instrument flutes, defects of cutting edges and instrument deformations. Results. SEM analysis showed defects on the surface of non-used instruments as a result of the manufacturing process. Surface defects, defects of cutting edges as well as flutes deformations were observed after a single use and were more often noticed in small sized instruments. After three uses, flutes deformations were observed in all small sized instruments and some of the medium size. After six uses all groups of instruments showed defects of cutting edges. Conclusion. Non-used stainless steel endodontic instruments showed surface defects created by the manufacturing process. Defects of cutting edges and flutes can be observed after a single use. To minimize complications and mistakes during clinical preparation it is recommended to limit the number of instrument uses.","PeriodicalId":52984,"journal":{"name":"Stomatoloski glasnik Srbije","volume":"66 1","pages":"175-182"},"PeriodicalIF":0.0,"publicationDate":"2014-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72579945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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