Pub Date : 2022-06-30DOI: 10.17126/joralres.2022.041
Maribel Tuya, Jacqueline Cespedes, Marian Anampa, Katty Ríos
Objetive: To determine the impact of dental erosion on the oral health related quality of life in preschool children aged 3 to 5 years. Material and Methods: An observational, cross-sectional study was carried out. The sample consisted of 150 preschoolers from a preschool in the suburban areas of Lima, Peru. The Basic Erosive Wear Examination (BEWE) index was used for the evaluation of dental erosion; and the Early Childhood Oral Health Impact Scale (ECOHIS) was used to measure quality of life. The data were analyzed in the statistical program SPSS v.25. Results: A prevalence of erosion of 40.7% was observed; with an initial loss of tooth surface in 28% and a loss of hard tissue of <50% of the surface area in 12% of the examined children. No statistically significant association was found between the impact of erosion and the oral health related quality of life (p> 0.05). However, the dimension with the highest score was functional limitations. Conclusion: The prevalence of dental erosion in preschool children was high, and dental erosion did not show an impact on the oral health related quality of life.
{"title":"Dental erosion and oral health-related quality of life in children aged 3 to 5 years living in Lima. Peru.","authors":"Maribel Tuya, Jacqueline Cespedes, Marian Anampa, Katty Ríos","doi":"10.17126/joralres.2022.041","DOIUrl":"https://doi.org/10.17126/joralres.2022.041","url":null,"abstract":"Objetive: To determine the impact of dental erosion on the oral health related quality of life in preschool children aged 3 to 5 years. Material and Methods: An observational, cross-sectional study was carried out. The sample consisted of 150 preschoolers from a preschool in the suburban areas of Lima, Peru. The Basic Erosive Wear Examination (BEWE) index was used for the evaluation of dental erosion; and the Early Childhood Oral Health Impact Scale (ECOHIS) was used to measure quality of life. The data were analyzed in the statistical program SPSS v.25. Results: A prevalence of erosion of 40.7% was observed; with an initial loss of tooth surface in 28% and a loss of hard tissue of <50% of the surface area in 12% of the examined children. No statistically significant association was found between the impact of erosion and the oral health related quality of life (p> 0.05). However, the dimension with the highest score was functional limitations. Conclusion: The prevalence of dental erosion in preschool children was high, and dental erosion did not show an impact on the oral health related quality of life.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76334816","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 : 2022-06-30DOI: 10.17126/joralres.2022.036
C. Muñoz-Sandoval, K. Gambetta-Tessini, Claudia Rodriguez-Jaque, Daniel Bravo-Cavicchioli, R. Giacaman
Objetive: To evaluate microleakage of composite resins (CR) placed over different cavitary liners after managing deep caries lesions through selective removal of soft carious tissue to soft dentin (SRCT-S). Material and Methods: Fifty four human teeth were collected for microleakage testing. Each assay comprised ICDAS 5 or ICDAS 6 carious lesions and sound teeth for controls. Sound teeth were prepared with cavities that mirrored the carious teeth cavities, which were prepared with SRCT-S. Sound and carious teeth were further randomly assigned to one of the three experimental groups: Group A: universal adhesive (UA) + CR, Group B: glass ionomer cement liner + UA + CR, and Group C: calcium hydroxide + UA+ CR. Occlusal microleakage (OM) and cervical microleakage (CM) was classified within one of 5 depth categories. ANOVA and Chi-square tests were computed (p<0.05). Results: OM and CM were similarly distributed across subgroups (p>0.05). All Group C samples with carious lesions presented some degree of microleakage. However, no statistically significant differences were observed between groups and within each group (p>0.05). Conclusion: Teeth restored with CR after SRCT-S using calcium hydroxide as a liner material seem to exhibit higher microleakage than those restored using glass ionomer or UA alone. Further clinical research is needed to deepen these findings. Clinical significance: The application of calcium hydroxide as a liner under a composite resin may reduce the longevity of a restoration after performing selective or partial removal of carious tissues. Clinicians should rethink the need of using calcium hydroxide for this application, albeit the lack of clinical evidence.
{"title":"Effect of Liners on Composite Resin Microleakage after Selective Carious Lesion Removal. An experimental Study","authors":"C. Muñoz-Sandoval, K. Gambetta-Tessini, Claudia Rodriguez-Jaque, Daniel Bravo-Cavicchioli, R. Giacaman","doi":"10.17126/joralres.2022.036","DOIUrl":"https://doi.org/10.17126/joralres.2022.036","url":null,"abstract":"Objetive: To evaluate microleakage of composite resins (CR) placed over different cavitary liners after managing deep caries lesions through selective removal of soft carious tissue to soft dentin (SRCT-S). Material and Methods: Fifty four human teeth were collected for microleakage testing. Each assay comprised ICDAS 5 or ICDAS 6 carious lesions and sound teeth for controls. Sound teeth were prepared with cavities that mirrored the carious teeth cavities, which were prepared with SRCT-S. Sound and carious teeth were further randomly assigned to one of the three experimental groups: Group A: universal adhesive (UA) + CR, Group B: glass ionomer cement liner + UA + CR, and Group C: calcium hydroxide + UA+ CR. Occlusal microleakage (OM) and cervical microleakage (CM) was classified within one of 5 depth categories. ANOVA and Chi-square tests were computed (p<0.05). Results: OM and CM were similarly distributed across subgroups (p>0.05). All Group C samples with carious lesions presented some degree of microleakage. However, no statistically significant differences were observed between groups and within each group (p>0.05). Conclusion: Teeth restored with CR after SRCT-S using calcium hydroxide as a liner material seem to exhibit higher microleakage than those restored using glass ionomer or UA alone. Further clinical research is needed to deepen these findings. Clinical significance: The application of calcium hydroxide as a liner under a composite resin may reduce the longevity of a restoration after performing selective or partial removal of carious tissues. Clinicians should rethink the need of using calcium hydroxide for this application, albeit the lack of clinical evidence.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83310811","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 : 2022-06-30DOI: 10.17126/joralres.2022.031
Luis Callalli, Diego Navarro, Ximena León
Introduction: Inadequate oral hygiene habits such as lack of tooth brushing, use of irrigators, fluoridated toothpastes, and dental floss, as well as the importance of worrying about going to the dentist in the event of any problem in the oral cavity and the continuity of treatment are factors that could increase the risk in patients. Objetive: To determine the association between the level of indifference to dental treatment and the oral hygiene habits of those surveyed adults. Material and Methods: An observational, analytical and cross-sectional study. The level of indifference to dental treatment was evaluated using a translated virtual questionnaire and subsequently internally validated (Cronbach's alpha: 0.91). There were a total of 249 participants, 150 males and 99 females, with a mean age of 30.69 years. For the association of the qualitative variables and the report of the crude and adjusted odds' ratio (OR), a logistic regression was used. We worked with a level of statistical significance of p<0.05 and a confidence interval of 95%. Results: A high level of indifference to dental treatment was obtained in 57.83% of the respondents. Likewise, a statistically significant association was found between indifference to dental treatment and education (p = 0.012). Regarding oral hygiene habits, a statistically significant association was found with flossing (OR = 2.22; 95% CI: 1.10-4.46) (p = 0.025) and brushing before sleeping (OR = 5.26; 95%: 2.26-12-22) (p<0.001). Conclusion: There is a statistically significant association between the level of indifference to dental treatment with oral hygiene habits, flossing and brushing before sleeping. It is advisable to carry out activities in the communities to promote oral health care to reduce levels of indifference to dental treatment.
{"title":"Association between the level of indifference to dental treatment and habits of oral hygiene in adults","authors":"Luis Callalli, Diego Navarro, Ximena León","doi":"10.17126/joralres.2022.031","DOIUrl":"https://doi.org/10.17126/joralres.2022.031","url":null,"abstract":"Introduction: Inadequate oral hygiene habits such as lack of tooth brushing, use of irrigators, fluoridated toothpastes, and dental floss, as well as the importance of worrying about going to the dentist in the event of any problem in the oral cavity and the continuity of treatment are factors that could increase the risk in patients. Objetive: To determine the association between the level of indifference to dental treatment and the oral hygiene habits of those surveyed adults. Material and Methods: An observational, analytical and cross-sectional study. The level of indifference to dental treatment was evaluated using a translated virtual questionnaire and subsequently internally validated (Cronbach's alpha: 0.91). There were a total of 249 participants, 150 males and 99 females, with a mean age of 30.69 years. For the association of the qualitative variables and the report of the crude and adjusted odds' ratio (OR), a logistic regression was used. We worked with a level of statistical significance of p<0.05 and a confidence interval of 95%. Results: A high level of indifference to dental treatment was obtained in 57.83% of the respondents. Likewise, a statistically significant association was found between indifference to dental treatment and education (p = 0.012). Regarding oral hygiene habits, a statistically significant association was found with flossing (OR = 2.22; 95% CI: 1.10-4.46) (p = 0.025) and brushing before sleeping (OR = 5.26; 95%: 2.26-12-22) (p<0.001). Conclusion: There is a statistically significant association between the level of indifference to dental treatment with oral hygiene habits, flossing and brushing before sleeping. It is advisable to carry out activities in the communities to promote oral health care to reduce levels of indifference to dental treatment.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85719755","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 : 2022-06-30DOI: 10.17126/joralres.2022.033
I. E. Corrales-Reyes, Vanessa Hernández-Silva, Piero Fracchia-González, Rosa Lara-Verastegui, Rocio Huiza-Maquera, C. Mejía
Introduction: It is necessary to keep up to date regarding scientific advances, even when having controversial options such as Sci-Hub. The scientific literature is generally limited to opinions about the website, and it is likely that certain personal or academic characteristics of undergraduate students are related to its knowledge. Objective: To identify some socio-educational and scientific factors associated with knowing Sci-Hub in Peruvian dental students. Material and Methods: The study uses a cross-sectional secondary data analysis design. In regard to the main variable, we asked about knowledge of the existence of Sci-Hub and calculated association statistics. Results: There were 263 participants and the average age was 21.7. Of the total, 75% were female, and 59% knew about Sci-Hub. The multivariate analysis showed that knowing scientific journals (aPR: 2.35; 95% CI: 1.43-3.84; p=0.001), publication of scientific articles (aPR: 1.24; 95% CI: 1.00-1.54; p=0.046) and bibliographic search training (aPR: 1.45; 95% CI: 1.14-1.86; p=0.003) were factors associated with a greater level of knowledge in regard to Sci-Hub. In contrast, there was a lower level of knowledge among those with a basic level of English (aPR: 0.64; 95% CI: 0.50-0.82; p=0.001), adjusted for three variables. Conclusion: Slightly more than half of the students know this resource used for obtaining scientific information, and it was predominantly associated with having a scientific background.
{"title":"Factors associated with knowledge of Sci-Hub in Peruvian dental students","authors":"I. E. Corrales-Reyes, Vanessa Hernández-Silva, Piero Fracchia-González, Rosa Lara-Verastegui, Rocio Huiza-Maquera, C. Mejía","doi":"10.17126/joralres.2022.033","DOIUrl":"https://doi.org/10.17126/joralres.2022.033","url":null,"abstract":"Introduction: It is necessary to keep up to date regarding scientific advances, even when having controversial options such as Sci-Hub. The scientific literature is generally limited to opinions about the website, and it is likely that certain personal or academic characteristics of undergraduate students are related to its knowledge. Objective: To identify some socio-educational and scientific factors associated with knowing Sci-Hub in Peruvian dental students. Material and Methods: The study uses a cross-sectional secondary data analysis design. In regard to the main variable, we asked about knowledge of the existence of Sci-Hub and calculated association statistics. Results: There were 263 participants and the average age was 21.7. Of the total, 75% were female, and 59% knew about Sci-Hub. The multivariate analysis showed that knowing scientific journals (aPR: 2.35; 95% CI: 1.43-3.84; p=0.001), publication of scientific articles (aPR: 1.24; 95% CI: 1.00-1.54; p=0.046) and bibliographic search training (aPR: 1.45; 95% CI: 1.14-1.86; p=0.003) were factors associated with a greater level of knowledge in regard to Sci-Hub. In contrast, there was a lower level of knowledge among those with a basic level of English (aPR: 0.64; 95% CI: 0.50-0.82; p=0.001), adjusted for three variables. Conclusion: Slightly more than half of the students know this resource used for obtaining scientific information, and it was predominantly associated with having a scientific background.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"98 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74253593","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 : 2022-06-30DOI: 10.17126/joralres.2022.038
Gina Laquihuanaco, Y. Rodríguez-Cárdenas, G. Ruíz-Mora, Abraham Meneses-López, L. Arriola-Guillén
Aim: The purpose of this research was to three-dimensionally evaluate the mandibular angle morphology in open bite subjects with different sagittal skeletal relationships. Material and Methods: Cone beam computed tomography (CBCT) images of 26 subjects (12 men and 14 women) with anterior open bite were evaluated. The sample included 3 groups categorized by their sagittal skeletal relationship (based on ANB angle and anteroposterior dysplasia indicator (APDI)): Class I (n=9), Class II (n=6) and Class III (n=11). The total gonial angle, upper gonial angle, lower gonial angle, intergonial width, interantegonial width and antegonial notch depth were measured. ANOVA and Tukey tests were used for intergroup comparison. The Kruskal Wallis test was also used when necessary. In addition, the Pearson correlation coefficient was calculated to evaluate significant correlations between overbite and antegonial notch depth with gonial angle, Frankfurt mandibular plane angle (FMA) and the palatal plane-mandibular plane (PP-MP). Results: A significant difference was only found on the upper gonial angle between Class II and Class III (p=0.047). The upper gonial angle showed greater values (48°±3°) with the mandibular branch toward backward in Class III subjects and lower values (42.42°±4.39°) with the mandibular ramus leaning forward in subjects with Class II skeletal relationship. Besides, only a statistically significant correlation was found between overbite and the lower gonial angle (r=-0.418, p=0.034). Conclusion: Mandibular angle morphology is similar in anterior open bite subjects with different sagittal skeletal relationships, except for the upper gonial angle which is increased in Class III and decreased in Class II subjects with open bite. Lower gonial angle is negatively correlated with overbite. This difference should be considered by orthodontists when planning their treatments.
{"title":"Mandibular angle morphology in open bite subjects according to the skeletal relationship: a cbct short report","authors":"Gina Laquihuanaco, Y. Rodríguez-Cárdenas, G. Ruíz-Mora, Abraham Meneses-López, L. Arriola-Guillén","doi":"10.17126/joralres.2022.038","DOIUrl":"https://doi.org/10.17126/joralres.2022.038","url":null,"abstract":"Aim: The purpose of this research was to three-dimensionally evaluate the mandibular angle morphology in open bite subjects with different sagittal skeletal relationships. Material and Methods: Cone beam computed tomography (CBCT) images of 26 subjects (12 men and 14 women) with anterior open bite were evaluated. The sample included 3 groups categorized by their sagittal skeletal relationship (based on ANB angle and anteroposterior dysplasia indicator (APDI)): Class I (n=9), Class II (n=6) and Class III (n=11). The total gonial angle, upper gonial angle, lower gonial angle, intergonial width, interantegonial width and antegonial notch depth were measured. ANOVA and Tukey tests were used for intergroup comparison. The Kruskal Wallis test was also used when necessary. In addition, the Pearson correlation coefficient was calculated to evaluate significant correlations between overbite and antegonial notch depth with gonial angle, Frankfurt mandibular plane angle (FMA) and the palatal plane-mandibular plane (PP-MP). Results: A significant difference was only found on the upper gonial angle between Class II and Class III (p=0.047). The upper gonial angle showed greater values (48°±3°) with the mandibular branch toward backward in Class III subjects and lower values (42.42°±4.39°) with the mandibular ramus leaning forward in subjects with Class II skeletal relationship. Besides, only a statistically significant correlation was found between overbite and the lower gonial angle (r=-0.418, p=0.034). Conclusion: Mandibular angle morphology is similar in anterior open bite subjects with different sagittal skeletal relationships, except for the upper gonial angle which is increased in Class III and decreased in Class II subjects with open bite. Lower gonial angle is negatively correlated with overbite. This difference should be considered by orthodontists when planning their treatments.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73588682","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}
Objetive: The aim of the study was to evaluate the maximum molar bite force in children aged 4 to 6 years with and without dental caries. Material and Methods: This cross sectional study was carried out from May 2018 to December 2018. A total of 288 children aged between 4 to 6 years were randomly selected from six different primary schools in Chennai city, India and divided into two groups of 144 children each, based on the presence and absence of caries: Group A children with non-carious dentition and Group B children with carious dentition. Bite force measurement was performed using standardized custom made occlusal force gauge. Statistical analysis used: Data were expressed as the mean ± SD. Student’s t‑test (two tailed, independent) and ANOVA were used to find the significance of study parameters between the groups. Results: Occlusal bite force of non-carious dentition (367.94 ±33.71N) was higher than the carious dentition (326.73±27.83N) and it was statistically significant (p≤0.01). Overall occlusal bite force of boys (350.44±35.84N) was significantly higher than that of girls (344.22±38.25N). Flush terminal plane molar relationship showed higher occlusal bite force (380.54±27.36N) followed by mesial step (350.82±22.25N) and distal step (310.63±20.82N) molar relationship. Conclusion: Non-carious dentition showed significantly higher bite force than carious dentition in children 4 to 6 years of age. Boys had higher bite force than the girls and flush terminal plane molar relationship showed higher bite force than mesial and distal step molar relationship.
{"title":"Evaluation of Molar Bite Force in Carious and Non-Carious Primary Dentition among 4 to 6 Year Old Children","authors":"N. K, Shankar Paulindraraj, Hemalatha Ramkumar, Senthil Dakshinamurthy, Trophimus Gnanabagyan, Nancy Solomon","doi":"10.17126/joralres.2022.037","DOIUrl":"https://doi.org/10.17126/joralres.2022.037","url":null,"abstract":"Objetive: The aim of the study was to evaluate the maximum molar bite force in children aged 4 to 6 years with and without dental caries. Material and Methods: This cross sectional study was carried out from May 2018 to December 2018. A total of 288 children aged between 4 to 6 years were randomly selected from six different primary schools in Chennai city, India and divided into two groups of 144 children each, based on the presence and absence of caries: Group A children with non-carious dentition and Group B children with carious dentition. Bite force measurement was performed using standardized custom made occlusal force gauge. Statistical analysis used: Data were expressed as the mean ± SD. Student’s t‑test (two tailed, independent) and ANOVA were used to find the significance of study parameters between the groups. Results: Occlusal bite force of non-carious dentition (367.94 ±33.71N) was higher than the carious dentition (326.73±27.83N) and it was statistically significant (p≤0.01). Overall occlusal bite force of boys (350.44±35.84N) was significantly higher than that of girls (344.22±38.25N). Flush terminal plane molar relationship showed higher occlusal bite force (380.54±27.36N) followed by mesial step (350.82±22.25N) and distal step (310.63±20.82N) molar relationship. Conclusion: Non-carious dentition showed significantly higher bite force than carious dentition in children 4 to 6 years of age. Boys had higher bite force than the girls and flush terminal plane molar relationship showed higher bite force than mesial and distal step molar relationship.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"41 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79311726","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 : 2022-06-30DOI: 10.17126/joralres.2022.039
Úrsula Pantigozo-Morán, J. González-Cabeza, María Espinoza-Salcedo
Objetive: To compare in vitro bacterial adherence on teeth submitted to whitening with 50% ethanolic extract of Musa paradisiaca and 35% hydrogen peroxide. Material and Methods: The study was experimental and used 18 premolars that were grouped into: G1 (control), G2 (50% ethanol extract of Musa paradisiaca) and G3 (35% hydrogen peroxide). The teeth were then exposed to a Streptococcus mutans culture for 24 hours, followed by centrifugation in thioglycolate broth. A culture on trypticase soy agar was done with a 1 in 100 dilution, and after 48 hours colony forming units (CFU) were counted. Statistical analysis was performed using the ANOVA test, complemented by the Bonferroni post-hoc. Results: Bacterial adherence was 77x105 CFU/ml in Group 3 using 35% hydrogen peroxide, 40x105 CFU/ml in Group 2 using 50% ethanol extract of Musa paradisiaca, and 89x104 CFU/ml in Group 1 (control). The difference between the three groups was significant (p=0.000). Conclusion: Both whitening methods cause bacterial adherence to the tooth surface, although to a lower degree with Musa paradisiaca.eses.
{"title":"In vitro bacterial adherence on teeth submitted to whitening with Musa paradisiaca.","authors":"Úrsula Pantigozo-Morán, J. González-Cabeza, María Espinoza-Salcedo","doi":"10.17126/joralres.2022.039","DOIUrl":"https://doi.org/10.17126/joralres.2022.039","url":null,"abstract":"Objetive: To compare in vitro bacterial adherence on teeth submitted to whitening with 50% ethanolic extract of Musa paradisiaca and 35% hydrogen peroxide. Material and Methods: The study was experimental and used 18 premolars that were grouped into: G1 (control), G2 (50% ethanol extract of Musa paradisiaca) and G3 (35% hydrogen peroxide). The teeth were then exposed to a Streptococcus mutans culture for 24 hours, followed by centrifugation in thioglycolate broth. A culture on trypticase soy agar was done with a 1 in 100 dilution, and after 48 hours colony forming units (CFU) were counted. Statistical analysis was performed using the ANOVA test, complemented by the Bonferroni post-hoc. Results: Bacterial adherence was 77x105 CFU/ml in Group 3 using 35% hydrogen peroxide, 40x105 CFU/ml in Group 2 using 50% ethanol extract of Musa paradisiaca, and 89x104 CFU/ml in Group 1 (control). The difference between the three groups was significant (p=0.000). Conclusion: Both whitening methods cause bacterial adherence to the tooth surface, although to a lower degree with Musa paradisiaca.eses.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87058851","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 : 2022-06-20DOI: 10.17126/joralres.2022.029
C. Farfán, Camila Venegas, M. Lezcano, Ramón Fuentes
Introduction: The objective of this study was to explore the electrical activity of the superficial muscles of mastication required to exert unilateral maximum bite force in subjects with different body mass index. Material and Methods: A cross-sectional observational study was conducted with a sample of 21 participants with an average age of 22.9 ± 3.5 years who were classified according to their body mass index, forming three study groups: normal weight (18.5-24.9), overweight (25-29.9) and obesity (≥30), with seven participants each. Through surface electromyography, the superficial muscles of mastication during right and left maximum bite force were evaluated. Results: No statistically significant differences in the maximum bite force were observed between the study groups. The data obtained from the electromyographic analysis of the superficial muscles of mastication demonstrate a trend indicating that subjects with a normal body mass index similarly activate the muscles on each side when performing a maximum bite force on a particular side, while overweight or obese subjects demonstrated significantly greater activation of the temporalis muscle associated with the side where the maximal bite force is performed. Conclusion: Our findings suggest that the maximum bite force is not influenced by body mass index and that during the performance of a maximum bite force subjects with increased body mass index present a greater activation of the temporalis muscle associated with the side where the maximum bite force was performed.
{"title":"Masticatory function according to body mass index. Part II: electromyographic analysis","authors":"C. Farfán, Camila Venegas, M. Lezcano, Ramón Fuentes","doi":"10.17126/joralres.2022.029","DOIUrl":"https://doi.org/10.17126/joralres.2022.029","url":null,"abstract":"Introduction: The objective of this study was to explore the electrical activity of the superficial muscles of mastication required to exert unilateral maximum bite force in subjects with different body mass index. Material and Methods: A cross-sectional observational study was conducted with a sample of 21 participants with an average age of 22.9 ± 3.5 years who were classified according to their body mass index, forming three study groups: normal weight (18.5-24.9), overweight (25-29.9) and obesity (≥30), with seven participants each. Through surface electromyography, the superficial muscles of mastication during right and left maximum bite force were evaluated. Results: No statistically significant differences in the maximum bite force were observed between the study groups. The data obtained from the electromyographic analysis of the superficial muscles of mastication demonstrate a trend indicating that subjects with a normal body mass index similarly activate the muscles on each side when performing a maximum bite force on a particular side, while overweight or obese subjects demonstrated significantly greater activation of the temporalis muscle associated with the side where the maximal bite force is performed. Conclusion: Our findings suggest that the maximum bite force is not influenced by body mass index and that during the performance of a maximum bite force subjects with increased body mass index present a greater activation of the temporalis muscle associated with the side where the maximum bite force was performed.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91352750","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 : 2022-06-20DOI: 10.17126/joralres.2022.030
Clarisse Díaz-Reissner, Cynthia Jara, Leticia Cataldi, C. Adorno
Aim: To determine the frequency of signs and/or symptoms compatible with COVID-19 in Paraguayan dentists, as well as the possible source of contagion. Material and Methods: Online survey consisting of 13 questions, applied to all dentists in Paraguay from January 20 to February 15, 2021. Results: A total of 433 dentists participated in the survey; 47.5% displayed symptoms compatible with COVID-19 and 13.39% indicated that they had contracted the disease, providing confirmation via a positive test result. Headache, loss of smell, loss of taste, cough, and fatigue were the most prevalent symptoms among COVID-19 positive cases. The main source of contagion was the family nucleus. Only one participant reported having contracted the disease while providing dental care. Conclusion: Almost half of the dentists displayed symptoms compatible with COVID-19. Only 13.39% tested positive for COVID-19. Only one case of contagion was reported to have happened during the provision of dental care.
{"title":"Self-report on COVID-19: A survey of Paraguayan dentists.","authors":"Clarisse Díaz-Reissner, Cynthia Jara, Leticia Cataldi, C. Adorno","doi":"10.17126/joralres.2022.030","DOIUrl":"https://doi.org/10.17126/joralres.2022.030","url":null,"abstract":"Aim: To determine the frequency of signs and/or symptoms compatible with COVID-19 in Paraguayan dentists, as well as the possible source of contagion. Material and Methods: Online survey consisting of 13 questions, applied to all dentists in Paraguay from January 20 to February 15, 2021. Results: A total of 433 dentists participated in the survey; 47.5% displayed symptoms compatible with COVID-19 and 13.39% indicated that they had contracted the disease, providing confirmation via a positive test result. Headache, loss of smell, loss of taste, cough, and fatigue were the most prevalent symptoms among COVID-19 positive cases. The main source of contagion was the family nucleus. Only one participant reported having contracted the disease while providing dental care. Conclusion: Almost half of the dentists displayed symptoms compatible with COVID-19. Only 13.39% tested positive for COVID-19. Only one case of contagion was reported to have happened during the provision of dental care.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"114 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76959920","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 : 2022-04-30DOI: 10.17126/joralres.2022.019
F. Vazquez-Vazquez, Alejandra Rodríguez-Hidalgo, Fernando Suaste-Olmos, Patricia González‐Alva, M. Álvarez-Pérez
Introduction: Biodentine (BD), a dentin substitute, is currently used to treat external cervical root resorption, but its effects on gingival fibroblasts (GFs) are not fully known. Objective: To investigate and compare BD and MTA (mineral trioxide aggre-gate) in terms of proliferative, migratory, and adhesion effects on human pulpal and gingival cells. Material and Methods: Cells were incubated directly on the surface of BD and MTA disks. Adhesion (4 and 24 h) and proliferation (3, 5, 7, 14, 21) were evaluated with crystal violet and MTT assays (n=9 X each group). A wound-healing assay was performed for cell migration, with 0.2 and 2 µg/ml MTA or BD (n=6 X each group). The cut-off point for statistical significance was set at p<0.05, p<0.01 and p<0.001. Results: The best adhesion and proliferation results for gingival fibroblast (GFs) were obtained with BD (p<0.01). MTA and BD enhanced the migration of GFs in a dose-dependent manner, with superior results with BD, and 2 µg/ml was the optimal concentration for enhancing the migration of GFs. Conclusion: Results indicate that BD and MTA exhibit excellent compatibility in terms of cell adhesion, proliferation, and cellular migration. Also, the results suggested that BD is associated with better results than MTA in GFs. The results support the clinical application of BD in areas colonized with GFs.
{"title":"Biodentine stimulates the migratory and biological responses of human gingival fibroblast","authors":"F. Vazquez-Vazquez, Alejandra Rodríguez-Hidalgo, Fernando Suaste-Olmos, Patricia González‐Alva, M. Álvarez-Pérez","doi":"10.17126/joralres.2022.019","DOIUrl":"https://doi.org/10.17126/joralres.2022.019","url":null,"abstract":"Introduction: Biodentine (BD), a dentin substitute, is currently used to treat external cervical root resorption, but its effects on gingival fibroblasts (GFs) are not fully known. Objective: To investigate and compare BD and MTA (mineral trioxide aggre-gate) in terms of proliferative, migratory, and adhesion effects on human pulpal and gingival cells. Material and Methods: Cells were incubated directly on the surface of BD and MTA disks. Adhesion (4 and 24 h) and proliferation (3, 5, 7, 14, 21) were evaluated with crystal violet and MTT assays (n=9 X each group). A wound-healing assay was performed for cell migration, with 0.2 and 2 µg/ml MTA or BD (n=6 X each group). The cut-off point for statistical significance was set at p<0.05, p<0.01 and p<0.001. Results: The best adhesion and proliferation results for gingival fibroblast (GFs) were obtained with BD (p<0.01). MTA and BD enhanced the migration of GFs in a dose-dependent manner, with superior results with BD, and 2 µg/ml was the optimal concentration for enhancing the migration of GFs. Conclusion: Results indicate that BD and MTA exhibit excellent compatibility in terms of cell adhesion, proliferation, and cellular migration. Also, the results suggested that BD is associated with better results than MTA in GFs. The results support the clinical application of BD in areas colonized with GFs.","PeriodicalId":16625,"journal":{"name":"Journal of Oral Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74132272","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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