Pub Date : 2024-03-07DOI: 10.15517/ijds.2024.59138
Sofía Castro, Sedany Garay, Fran Espinoza-Carhuancho, Julia Medina, Roman Mendoza, Franco Mauricio, Frank Mayta-Tovalino
To describe the scientific literature on the uses and application of probiotics in dentistry. An electronic search was carried out without date restriction in the PubMed and Scopus databases. The articles were compiled, and their characteristics, objectives and methods were studied using the following keywords: "probiotics", "S. mutans", "oral health", "biofilm", among others. For the present literature review, 10 studies were chosen that investigate the probiotic action of certain strains such as Lactobaccillus and Bifidobacterium in periodontal and orthodontic treatments, among others. These studies proved their efficacy in different types of presentations such as tablets and yogurt, in different types of populations such as infants, young people and older adults. Finally, a large part of these studies determined biofilm reduction. Based on the research articles, strains such as Lactobaccillus and Bifidobacterium showed positive effects in the reduction of bacterial plaque such as S. mutans in short- and long-term periods in different populations. There is a large production of studies concerning the application of probiotics in dentistry. However, it is necessary to carry out studies with other types of bacteria and different vehicles to determine more precisely which species help to maintain oral health.
{"title":"Exploring the Potential of Probiotics in Dentistry: A Literature Review","authors":"Sofía Castro, Sedany Garay, Fran Espinoza-Carhuancho, Julia Medina, Roman Mendoza, Franco Mauricio, Frank Mayta-Tovalino","doi":"10.15517/ijds.2024.59138","DOIUrl":"https://doi.org/10.15517/ijds.2024.59138","url":null,"abstract":"To describe the scientific literature on the uses and application of probiotics in dentistry. An electronic search was carried out without date restriction in the PubMed and Scopus databases. The articles were compiled, and their characteristics, objectives and methods were studied using the following keywords: \"probiotics\", \"S. mutans\", \"oral health\", \"biofilm\", among others. For the present literature review, 10 studies were chosen that investigate the probiotic action of certain strains such as Lactobaccillus and Bifidobacterium in periodontal and orthodontic treatments, among others. These studies proved their efficacy in different types of presentations such as tablets and yogurt, in different types of populations such as infants, young people and older adults. Finally, a large part of these studies determined biofilm reduction. Based on the research articles, strains such as Lactobaccillus and Bifidobacterium showed positive effects in the reduction of bacterial plaque such as S. mutans in short- and long-term periods in different populations. There is a large production of studies concerning the application of probiotics in dentistry. However, it is necessary to carry out studies with other types of bacteria and different vehicles to determine more precisely which species help to maintain oral health.","PeriodicalId":509192,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"58 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140259010","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}
The aim of the present study was to analyze the effects of 4 different surface treatments, on the crystallographic characteristics of Ultra-Translucent Zirconia. Fully sintered zirconia specimens of highly translucent yttria partially stabilized zirconia (Y-PSZ) (KATANA UTML) were divided into four experimental groups and a control group (n=10). Each group received one of the following surface treatments: sandblasting with 50µm alumina particles (Al₂O₃), sandblasting with 110µm alumina particles, and grinding with a rotary high-speed turbine with and without water irrigation. For each sample, x-ray diffraction was carried out to analyze peak intensity, calculate the crystallite size, and detect the presence of compressive and tensile stress. Surface roughness was measured on all specimens using a standard scanning profilometer. Additionally, scanning electron microscopy (SEM) was performed to qualitatively analyze the surfaces of the specimens. Statistical analysis included repeated measures analysis of variance and post hoc Tukey test (p≤0.05). The control group exhibited the highest crystallite size (323nm). All surface treatments led to a reduction in the crystallite size, with the most significant reduction observed in the groups subjected to sandblasting with 110µm alumina particles and high-speed grinding with irrigation. Sandblasting with 50µm alumina particles resulted in less transformation of the crystallite size. A general tendency of the diffraction peaks to shift to a lower angle can be observed in the experimental groups, indicating the presence of compressive stress on the samples. Profilometry revealed higher roughness in the ground samples (6,14µm and 6,57µm) compared to the sandblasted groups (2,93µm and 2,02µm). The crystal domain size showed a tendency to decrease after the surface treatments. Sandblasted samples, as well as ground samples without irrigation, exhibited compressive stress. Sandblasted samples had lower surface roughness compared to the ground samples. Sandblasting with 50µm alumina particles caused the least decrease in crystallite size.
{"title":"Crystallographic and Topographic Analysis of Ultra-Translucent Zirconia After Various Surface Treatments","authors":"Tatiana Vargas Koudriavtsev, Jorge Santamaría Villalobos","doi":"10.15517/ijds.2024.59129","DOIUrl":"https://doi.org/10.15517/ijds.2024.59129","url":null,"abstract":"The aim of the present study was to analyze the effects of 4 different surface treatments, on the crystallographic characteristics of Ultra-Translucent Zirconia. Fully sintered zirconia specimens of highly translucent yttria partially stabilized zirconia (Y-PSZ) (KATANA UTML) were divided into four experimental groups and a control group (n=10). Each group received one of the following surface treatments: sandblasting with 50µm alumina particles (Al₂O₃), sandblasting with 110µm alumina particles, and grinding with a rotary high-speed turbine with and without water irrigation. For each sample, x-ray diffraction was carried out to analyze peak intensity, calculate the crystallite size, and detect the presence of compressive and tensile stress. Surface roughness was measured on all specimens using a standard scanning profilometer. Additionally, scanning electron microscopy (SEM) was performed to qualitatively analyze the surfaces of the specimens. Statistical analysis included repeated measures analysis of variance and post hoc Tukey test (p≤0.05). The control group exhibited the highest crystallite size (323nm). All surface treatments led to a reduction in the crystallite size, with the most significant reduction observed in the groups subjected to sandblasting with 110µm alumina particles and high-speed grinding with irrigation. Sandblasting with 50µm alumina particles resulted in less transformation of the crystallite size. A general tendency of the diffraction peaks to shift to a lower angle can be observed in the experimental groups, indicating the presence of compressive stress on the samples. Profilometry revealed higher roughness in the ground samples (6,14µm and 6,57µm) compared to the sandblasted groups (2,93µm and 2,02µm). The crystal domain size showed a tendency to decrease after the surface treatments. Sandblasted samples, as well as ground samples without irrigation, exhibited compressive stress. Sandblasted samples had lower surface roughness compared to the ground samples. Sandblasting with 50µm alumina particles caused the least decrease in crystallite size.","PeriodicalId":509192,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"39 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140258432","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}
The color stability of temporary restoration is crucial, especially in sensitive areas in terms of aesthetics. This research aimed to determine the effect of temporary cement on the color of temporary crowns made by conventional pressing methods (indirect) and CAM/CAD technologies using milling machines and 3D printers. This study was carried out in a laboratory, utilizing A2 color in all manufacturing methods. The color of the restorations was measured by a spectrophotometer after cementation with semi-permanent resin cement. Subsequently, color changes of the samples (ranging from 0 to 100) were calculated using the Commission International de l'Eclairage (CIE) Lab system. Data analysis was based on descriptive statistics methods and statistical tests, including one-way analysis of variance (ANOVA) and Tukey's post hoc test. According to the results of ANOVA, there was a significant difference between the three groups in terms of the 'a' and 'b' indexes (P<0.001). However, regarding the 'l' index, no significant difference was observed among the three groups (P=0.250). Also, based on Tukey's post hoc test, a significant relationship was seen between the first and second pairs in the 3D printer group, and between the first and third pairs in the milling group (P<0.001). However, no significant difference was observed in the conventional pressing group. The results showed that the 3D printing method exhibited the highest amount of color change among the three methods, while the milling method demonstrated the lowest amount of change.
{"title":"Effect of Temporary Cement on the Color of Temporary Crowns Made by Conventional Pressing Methods and Substractive CAM/CAD Technologies","authors":"Farnaz Firouz, F. Vafaee, Alireza Izadi, Maryam Farhadian, Hossein Rajabi, Fatemeh Niaghiha","doi":"10.15517/ijds.2023.57793","DOIUrl":"https://doi.org/10.15517/ijds.2023.57793","url":null,"abstract":"The color stability of temporary restoration is crucial, especially in sensitive areas in terms of aesthetics. This research aimed to determine the effect of temporary cement on the color of temporary crowns made by conventional pressing methods (indirect) and CAM/CAD technologies using milling machines and 3D printers. This study was carried out in a laboratory, utilizing A2 color in all manufacturing methods. The color of the restorations was measured by a spectrophotometer after cementation with semi-permanent resin cement. Subsequently, color changes of the samples (ranging from 0 to 100) were calculated using the Commission International de l'Eclairage (CIE) Lab system. Data analysis was based on descriptive statistics methods and statistical tests, including one-way analysis of variance (ANOVA) and Tukey's post hoc test. According to the results of ANOVA, there was a significant difference between the three groups in terms of the 'a' and 'b' indexes (P<0.001). However, regarding the 'l' index, no significant difference was observed among the three groups (P=0.250). Also, based on Tukey's post hoc test, a significant relationship was seen between the first and second pairs in the 3D printer group, and between the first and third pairs in the milling group (P<0.001). However, no significant difference was observed in the conventional pressing group. The results showed that the 3D printing method exhibited the highest amount of color change among the three methods, while the milling method demonstrated the lowest amount of change.","PeriodicalId":509192,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139217601","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}
The main objective of this study was to determine the failure rates of the courses in the curriculum of the Dentistry degree program at the University of Costa Rica for the cohorts from 2007 to 2014. Data from 736 records were used. The variables considered were the following: gender, age at admission, nationality, marital status, children, domicile, previous high school attended, admission exam scores, and approved courses. The data were obtained from the Student Application System, physical records, and the Supreme Electoral Tribunal of Costa Rica. Descriptive, bivariate, and multivariate analyses were performed. Among the students, 98% were Costa Rican, 68% were female, 79% were admitted based on their admission exam scores, 43% were admitted at the age of 18 or younger, 50% came from public schools, 77% resided in the Greater Metropolitan Area, and 95% were single and childless. The majority of study dropouts occurred in the first four cycles of the dentistry degree. The courses with the lowest overall success rate in the curriculum were service courses: General Chemistry, Organic Chemistry, and Elemental Mathematics. Among the core courses, the Pediatric Dentistry and Orthodontics Clinic and the Endodontics Clinic had the highest failure rates. Moreover, there was a statistically significant difference between the approval rates of the physics course and the school of origin. In the Dentistry degree program at University of Costa Rica, the failure rate is high in the first four cycles of the program, which is when service courses are mainly offered. As for the core courses, the Pediatric Dentistry and Orthodontics Clinic and the Endodontics Clinic had the lowest success rates.
{"title":"Courses that Impact the Terminal Efficiency in the Dentistry Career at the University of Costa Rica (2007-2014)","authors":"Adrián Gómez-Fernández, Cristina Castro-Sancho, Romain Fantin, Natalia Gutiérrez-Marín","doi":"10.15517/ijds.2023.57675","DOIUrl":"https://doi.org/10.15517/ijds.2023.57675","url":null,"abstract":"The main objective of this study was to determine the failure rates of the courses in the curriculum of the Dentistry degree program at the University of Costa Rica for the cohorts from 2007 to 2014. Data from 736 records were used. The variables considered were the following: gender, age at admission, nationality, marital status, children, domicile, previous high school attended, admission exam scores, and approved courses. The data were obtained from the Student Application System, physical records, and the Supreme Electoral Tribunal of Costa Rica. Descriptive, bivariate, and multivariate analyses were performed. Among the students, 98% were Costa Rican, 68% were female, 79% were admitted based on their admission exam scores, 43% were admitted at the age of 18 or younger, 50% came from public schools, 77% resided in the Greater Metropolitan Area, and 95% were single and childless. The majority of study dropouts occurred in the first four cycles of the dentistry degree. The courses with the lowest overall success rate in the curriculum were service courses: General Chemistry, Organic Chemistry, and Elemental Mathematics. Among the core courses, the Pediatric Dentistry and Orthodontics Clinic and the Endodontics Clinic had the highest failure rates. Moreover, there was a statistically significant difference between the approval rates of the physics course and the school of origin. In the Dentistry degree program at University of Costa Rica, the failure rate is high in the first four cycles of the program, which is when service courses are mainly offered. As for the core courses, the Pediatric Dentistry and Orthodontics Clinic and the Endodontics Clinic had the lowest success rates.","PeriodicalId":509192,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"33 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139265645","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}
Pub Date : 2023-11-15DOI: 10.15517/ijds.2023.57651
Natalia Gutiérrez-Marín, Andrea López-Soto
The objective of this research was to determine the level of satisfaction among patients attending the postgraduate clinics at the University of Costa Rica during 2022 using the Dental Satisfaction Questionnaire. The research included the entire population of patients and/or legal guardians who received dental care in the postgraduate clinics of pediatric dentistry and prosthodontics at the School of Dentistry between August and October 2022. A questionnaire consisting of Dental Satisfaction Questionnaire items and sociodemographic variables was applied. Descriptive statistics were performed to establish the absolute and relative frequencies, measures of central tendency, and variability, depending on the nature of the variables. The Kolmogorov-Smirnov test was used to assess the data’s conformity to a normal distribution. Questionnaire and sociodemographic variables were analyzed using the Mann-Whitney U Test and the Kruskal-Wallis Test. The response rate was 54.1%, with 95% of the participants expressing satisfaction or high satisfaction with the dental services received. Statistically significant differences were observed in some of the domains concerning sociodemographic variables: between the educational level and pain management (p=0.022) and between the frequency of dental visits and availability (p=0.008). Additionally, a statistically significant difference was observed among postgraduate categories in the domain of quality (p=0.038). This study concludes that patients attending the postgraduate clinics of prosthodontic and pediatric dentistry at the School of Dentistry, University of Costa Rica, are generally satisfied with the care they receive.
{"title":"Dentistry Postgraduates: User Satisfaction at the University of Costa Rica","authors":"Natalia Gutiérrez-Marín, Andrea López-Soto","doi":"10.15517/ijds.2023.57651","DOIUrl":"https://doi.org/10.15517/ijds.2023.57651","url":null,"abstract":"The objective of this research was to determine the level of satisfaction among patients attending the postgraduate clinics at the University of Costa Rica during 2022 using the Dental Satisfaction Questionnaire. The research included the entire population of patients and/or legal guardians who received dental care in the postgraduate clinics of pediatric dentistry and prosthodontics at the School of Dentistry between August and October 2022. A questionnaire consisting of Dental Satisfaction Questionnaire items and sociodemographic variables was applied. Descriptive statistics were performed to establish the absolute and relative frequencies, measures of central tendency, and variability, depending on the nature of the variables. The Kolmogorov-Smirnov test was used to assess the data’s conformity to a normal distribution. Questionnaire and sociodemographic variables were analyzed using the Mann-Whitney U Test and the Kruskal-Wallis Test. The response rate was 54.1%, with 95% of the participants expressing satisfaction or high satisfaction with the dental services received. Statistically significant differences were observed in some of the domains concerning sociodemographic variables: between the educational level and pain management (p=0.022) and between the frequency of dental visits and availability (p=0.008). Additionally, a statistically significant difference was observed among postgraduate categories in the domain of quality (p=0.038). This study concludes that patients attending the postgraduate clinics of prosthodontic and pediatric dentistry at the School of Dentistry, University of Costa Rica, are generally satisfied with the care they receive.","PeriodicalId":509192,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139271678","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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