Pub Date : 2022-10-31DOI: 10.15517/ijds.2022.52970
Ayca Sarialioglu Gungor, A. Durmuş, B. Zengin Kurt, Safiye Selin Köymen, N. Dönmez
This study evaluated selected structural and physical properties, such as degree of conversion (DC), Vickers hardness (VHN), and compression strength (CS), of three new dual-cure bulk-fill resin-based composites (RBCs; ACTIVA, HyperFIL, and Fill-Up) and compared them to those of a conventional RBC (Filtek Z250) at three clinically relevant depths. Samples (n=180) were prepared in three depths (2,4, and 6mm). Fourier-transform infrared spectroscopy (FTIR) analysis and VHN and CS tests were performed. The DC value was calculated by considering the relative change in the aliphatic C=C peaks. The fractured surfaces of representative samples were characterized using scanning electron microscopy (SEM). Data were statistically evaluated using two-way analysis of variance and post hoc Bonferroni tests (p<0.05). According to the VHN results, Filtek Z250 showed the highest bottom/top hardness ratio (97.94±1.01) at 2mm thickness and ACTIVA showed the lowest bottom/top hardness ratio (43.48±5.64) at 6mm thickness (p<0.001). According to the FTIR results, the DC decreased with increasing thickness in all materials (p<0.05). Filtek Z250 showed the highest (301±12.4 MPa) and ACTIVA exhibited the lowest (232±17.2 MPa) CS values at 2mm thickness (p<0.05). The lowest CS values were obtained for ACTIVA, and the highest values were obtained for Filtek Z250 for samples with thicknesses of 4 and 6mm, respectively (p<0.05). The structural features of restorative composites, such as the resin chemistry and filler type and content, and the operational parameters (i.e., material thickness and curing conditions) strongly affect crosslinking reactions and thus the DC, VHN, and CS values.
{"title":"Depth of Cure, Mechanical Properties and Morphology of Dual-Cure Bulk-Fill Composites","authors":"Ayca Sarialioglu Gungor, A. Durmuş, B. Zengin Kurt, Safiye Selin Köymen, N. Dönmez","doi":"10.15517/ijds.2022.52970","DOIUrl":"https://doi.org/10.15517/ijds.2022.52970","url":null,"abstract":"This study evaluated selected structural and physical properties, such as degree of conversion (DC), Vickers hardness (VHN), and compression strength (CS), of three new dual-cure bulk-fill resin-based composites (RBCs; ACTIVA, HyperFIL, and Fill-Up) and compared them to those of a conventional RBC (Filtek Z250) at three clinically relevant depths. Samples (n=180) were prepared in three depths (2,4, and 6mm). Fourier-transform infrared spectroscopy (FTIR) analysis and VHN and CS tests were performed. The DC value was calculated by considering the relative change in the aliphatic C=C peaks. The fractured surfaces of representative samples were characterized using scanning electron microscopy (SEM). Data were statistically evaluated using two-way analysis of variance and post hoc Bonferroni tests (p<0.05). According to the VHN results, Filtek Z250 showed the highest bottom/top hardness ratio (97.94±1.01) at 2mm thickness and ACTIVA showed the lowest bottom/top hardness ratio (43.48±5.64) at 6mm thickness (p<0.001). According to the FTIR results, the DC decreased with increasing thickness in all materials (p<0.05). Filtek Z250 showed the highest (301±12.4 MPa) and ACTIVA exhibited the lowest (232±17.2 MPa) CS values at 2mm thickness (p<0.05). The lowest CS values were obtained for ACTIVA, and the highest values were obtained for Filtek Z250 for samples with thicknesses of 4 and 6mm, respectively (p<0.05). The structural features of restorative composites, such as the resin chemistry and filler type and content, and the operational parameters (i.e., material thickness and curing conditions) strongly affect crosslinking reactions and thus the DC, VHN, and CS values.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76042665","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 : 2022-10-19DOI: 10.15517/ijds.2022.52853
J. Bermeo-Escalona, B. Cerda-Cristerna
Dentists have a high risk of contracting COVID-19, they needed to be aware of the major challenge that represents the dental practice and COVID-19. Accordingly, this study aimed: 1) to investigate the knowledge of dentists regarding COVID-19, 2) to investigate the attitudes of dentists concerning the use of personal protective equipment and, 3) to investigate the attitudes of dentists on stopping their dental practices in the framework of a contingency plan for the COVID-19 outbreak. An online cross-sectional survey was applied to dentists (n=822). Dentists in Mexico answered the survey, which was administered before the contingency plan for the COVID-19 outbreak. Results were analyzed with descriptive statistics and with a Chi-square test (P≤0.05). Of the respondents, 99% of dentists indicated knowing what COVID-19 is, knowing most, but not all, of its signs and symptoms and knowing its mode of transmission. The 89% of dentists indicated that they always used personal protective equipment. But they did not use always wear face masks, protective eyewear, face shields, disposable gowns, and caps. Dentists were aware of the risk of performing dental procedures during the COVID-19 outbreak. The 90% of dentists indicated that they would treat only patients requiring emergency treatment, and 10% indicated that they would not treat any patients. The dentists had limited knowledge about the COVID-19 disease. They did not use personal protective equipment consistently, and they indicated that they might continue working during the COVID-19 outbreak.
{"title":"Knowledge and attitudes of Mexican dentists regarding COVID-19","authors":"J. Bermeo-Escalona, B. Cerda-Cristerna","doi":"10.15517/ijds.2022.52853","DOIUrl":"https://doi.org/10.15517/ijds.2022.52853","url":null,"abstract":"Dentists have a high risk of contracting COVID-19, they needed to be aware of the major challenge that represents the dental practice and COVID-19. Accordingly, this study aimed: 1) to investigate the knowledge of dentists regarding COVID-19, 2) to investigate the attitudes of dentists concerning the use of personal protective equipment and, 3) to investigate the attitudes of dentists on stopping their dental practices in the framework of a contingency plan for the COVID-19 outbreak. An online cross-sectional survey was applied to dentists (n=822). Dentists in Mexico answered the survey, which was administered before the contingency plan for the COVID-19 outbreak. Results were analyzed with descriptive statistics and with a Chi-square test (P≤0.05). Of the respondents, 99% of dentists indicated knowing what COVID-19 is, knowing most, but not all, of its signs and symptoms and knowing its mode of transmission. The 89% of dentists indicated that they always used personal protective equipment. But they did not use always wear face masks, protective eyewear, face shields, disposable gowns, and caps. Dentists were aware of the risk of performing dental procedures during the COVID-19 outbreak. The 90% of dentists indicated that they would treat only patients requiring emergency treatment, and 10% indicated that they would not treat any patients. The dentists had limited knowledge about the COVID-19 disease. They did not use personal protective equipment consistently, and they indicated that they might continue working during the COVID-19 outbreak.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72450843","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 : 2022-10-12DOI: 10.15517/ijds.2022.52728
B. Dayı, Fikriye Öçal
To examine the colour change and surface roughness of giomer, microhybrid composite and nanohybrid composite after brushing with whitening toothpastes. Disc-shaped samples of giomer, microhybrid composite and nanohybrid composite were divided into three subgroups(n=10), with the initial colour measured with a spectrophotometer and the surface roughness measured with a mechanical profilometer. The samples, which were immersed in coffee solution were brushed once a day with whitening toothpastes (Opalescence Cool Mint (OCM), Colgate Optic White Extra Power (COW) and Signal White Now Gold (SWN)) for 12 days. Colour change and surface roughness were measured again after the colouring-brushing cycle. All of the analyses were performed using appropriate statistical hypothesis tests. The highest increase in surface roughness was seen in the microhybrid composite group applied with SWN (p<0.05). The group with the least increase was the giomer group applied with SWN (p<0.05). While the least colour change was observed in the COW applied nanohybrid composite group (∆E00=1,814), the most colour change occurred in the COW applied giomer group (∆E00=5.943). After the use of whitening toothpastes, the roughness of giomer, microhybrid composite and nanohybrid composite surfaces was increased and a colour change above the clinically accepted value was observed.
观察聚异构体、微杂化复合材料和纳米杂化复合材料用美白牙膏刷牙后的颜色变化和表面粗糙度。将异构体、微杂化复合材料和纳米杂化复合材料的圆盘状样品分为3个亚组(n=10)，用分光光度计测量初始颜色，用机械轮廓仪测量表面粗糙度。将样品浸泡在咖啡溶液中，每天用美白牙膏(Opalescence Cool Mint (OCM)、高露洁光学白额外能量(COW)和Signal White Now Gold (SWN))刷牙一次，持续12天。涂色循环后再次测量颜色变化和表面粗糙度。所有分析均采用适当的统计假设检验进行。微杂化复合材料组表面粗糙度增加幅度最大(p<0.05)。增重最小的组为应用SWN的异构体组(p<0.05)。纳米杂化复合材料组颜色变化最小(∆E00= 1814)，而异构体组颜色变化最大(∆E00=5.943)。使用美白牙膏后，异构体、微杂化复合材料和纳米杂化复合材料表面粗糙度增加，颜色变化高于临床可接受值。
{"title":"The Effect of Whitening Toothpastes on Colour Change and Surface Roughness of Restorative Materials","authors":"B. Dayı, Fikriye Öçal","doi":"10.15517/ijds.2022.52728","DOIUrl":"https://doi.org/10.15517/ijds.2022.52728","url":null,"abstract":"To examine the colour change and surface roughness of giomer, microhybrid composite and nanohybrid composite after brushing with whitening toothpastes. Disc-shaped samples of giomer, microhybrid composite and nanohybrid composite were divided into three subgroups(n=10), with the initial colour measured with a spectrophotometer and the surface roughness measured with a mechanical profilometer. The samples, which were immersed in coffee solution were brushed once a day with whitening toothpastes (Opalescence Cool Mint (OCM), Colgate Optic White Extra Power (COW) and Signal White Now Gold (SWN)) for 12 days. Colour change and surface roughness were measured again after the colouring-brushing cycle. All of the analyses were performed using appropriate statistical hypothesis tests. The highest increase in surface roughness was seen in the microhybrid composite group applied with SWN (p<0.05). The group with the least increase was the giomer group applied with SWN (p<0.05). While the least colour change was observed in the COW applied nanohybrid composite group (∆E00=1,814), the most colour change occurred in the COW applied giomer group (∆E00=5.943). After the use of whitening toothpastes, the roughness of giomer, microhybrid composite and nanohybrid composite surfaces was increased and a colour change above the clinically accepted value was observed.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82389055","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 : 2022-10-12DOI: 10.15517/ijds.2022.52727
Luis Angel García-Gonzales, Vilma Elizabeth Ruiz-García de Chacón
The purpose of this research was the tomographic evaluation of the Mandibular Buccal Shelf (MBS) in orthodontic patients with different vertical growth pattern. An observational, descriptive, cross-sectional and retrospective study was conducted. Tomographic images of patients aged 14 to 40 years were observed and a database was formed with those that met the inclusion criteria. The sample size was 10 for each group according to vertical growth pattern (hypodivergent, normodivergent and hyperdivergent). Then four zones of frequent insertion of extralveolar mini-screws were selected in the MBS, taking as a reference the mesial and distal roots of the first and second mandibular molar. When comparing the characteristics of MBS between vertical growth patterns, between sexes and hemiarchs, no statistically significant differences were found. However, when the characteristics of MBS were compared according to the reference root, it was found that there were statistically significant differences. The vestibular area to the distal root of the second mandibular molar presented the highest values in terms of angulation, height and thickness. There are no significant differences in the bone characteristics of MBS according to vertical growth patterns, sexes or hemiarchs. Angulation, height and thickness progressively increase from the vestibular bone of the mesial root of the first mandibular molar to the distal root of the second molar.
{"title":"Tomographic Evaluation of Mandibular Buccal Shelf in Patients with Different Vertical Growth Pattern","authors":"Luis Angel García-Gonzales, Vilma Elizabeth Ruiz-García de Chacón","doi":"10.15517/ijds.2022.52727","DOIUrl":"https://doi.org/10.15517/ijds.2022.52727","url":null,"abstract":"The purpose of this research was the tomographic evaluation of the Mandibular Buccal Shelf (MBS) in orthodontic patients with different vertical growth pattern. An observational, descriptive, cross-sectional and retrospective study was conducted. Tomographic images of patients aged 14 to 40 years were observed and a database was formed with those that met the inclusion criteria. The sample size was 10 for each group according to vertical growth pattern (hypodivergent, normodivergent and hyperdivergent). Then four zones of frequent insertion of extralveolar mini-screws were selected in the MBS, taking as a reference the mesial and distal roots of the first and second mandibular molar. When comparing the characteristics of MBS between vertical growth patterns, between sexes and hemiarchs, no statistically significant differences were found. However, when the characteristics of MBS were compared according to the reference root, it was found that there were statistically significant differences. The vestibular area to the distal root of the second mandibular molar presented the highest values in terms of angulation, height and thickness. There are no significant differences in the bone characteristics of MBS according to vertical growth patterns, sexes or hemiarchs. Angulation, height and thickness progressively increase from the vestibular bone of the mesial root of the first mandibular molar to the distal root of the second molar.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87818229","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 objective is to determine which biopolymer has the best 3D printing characteristics and mechanical properties for the manufacture of a bioscaffold, using the fused deposition printing technique, with models generated from a Micro-CT Scan. Through an experimental exploratory study, the 3D printing of a bioscaffold was carried out using the fused deposition modeling (FDM) technique, from an STL file obtained from a Micro-CT scan taken from a bovine iliac crest bone structure Three study groups of the analyzed biopolymers were carried out with thirteen printed structures of each one. The first is made of 100% PLA. The second, 90B, is composed of 20g of polylactic acid per 1g of diatom extract, and the third, 88C, differs from the previous one in that it also contains 1g of calcium phosphate. The 39 printed structures underwent a visual inspection test, which required the fabrication of a gold standard scaffold in resin, with greater detail and similarity to the scanned bone structure. Finally, the structures were subjected to a compressive force (N) to obtain the modulus of elasticity (MPa) and compressive strength (MPa) of each one of them. A statistically significant difference (p=0.001) was obtained in the printing properties of the biomaterial 88C, compared to 90B and pure PLA. The 88C biopolymer presented the best 3D printing characteristics using the fused deposition printing technique, from stereolithographic models obtained with Micro-CT Scan. In addition, the 88C biopolymer presented the best mechanical properties compared to the other groups of materials. Although the difference between these was not statistically significant (p=0.388), in the structures of the 88C biomaterial, values of compressive strength (8,84692 MPa) and modulus of elasticity (43,23615 MPa) were similar to those of cancellous bone in the jaws could be observed. In conclusion, the biomaterial that exhibited the best printing and mechanical characteristics to produce a 3D printed bio scaffold using the fused deposition technique from stereolithographic models obtained from a Micro-CT Scan was the 88C biopolymer. Because of this result, the 88C biomaterial has the potential to be used in the manufacture of bioscaffolds in tissue engineering.
{"title":"3D Printing Characteristics and Mechanical Properties of a Bio Scaffold Obtained from a Micro-CT Scan, Using the Fused Deposition Modeling Technique","authors":"Natalia González-Sánchez, Nicole Jensen-Líos, Diana Hernández-Montoya, José Esteban Campos Zumbado, Jorge Oviedo-Quirós","doi":"10.15517/ijds.2022.52671","DOIUrl":"https://doi.org/10.15517/ijds.2022.52671","url":null,"abstract":"The objective is to determine which biopolymer has the best 3D printing characteristics and mechanical properties for the manufacture of a bioscaffold, using the fused deposition printing technique, with models generated from a Micro-CT Scan. Through an experimental exploratory study, the 3D printing of a bioscaffold was carried out using the fused deposition modeling (FDM) technique, from an STL file obtained from a Micro-CT scan taken from a bovine iliac crest bone structure Three study groups of the analyzed biopolymers were carried out with thirteen printed structures of each one. The first is made of 100% PLA. The second, 90B, is composed of 20g of polylactic acid per 1g of diatom extract, and the third, 88C, differs from the previous one in that it also contains 1g of calcium phosphate. The 39 printed structures underwent a visual inspection test, which required the fabrication of a gold standard scaffold in resin, with greater detail and similarity to the scanned bone structure. Finally, the structures were subjected to a compressive force (N) to obtain the modulus of elasticity (MPa) and compressive strength (MPa) of each one of them. A statistically significant difference (p=0.001) was obtained in the printing properties of the biomaterial 88C, compared to 90B and pure PLA. The 88C biopolymer presented the best 3D printing characteristics using the fused deposition printing technique, from stereolithographic models obtained with Micro-CT Scan. In addition, the 88C biopolymer presented the best mechanical properties compared to the other groups of materials. Although the difference between these was not statistically significant (p=0.388), in the structures of the 88C biomaterial, values of compressive strength (8,84692 MPa) and modulus of elasticity (43,23615 MPa) were similar to those of cancellous bone in the jaws could be observed. In conclusion, the biomaterial that exhibited the best printing and mechanical characteristics to produce a 3D printed bio scaffold using the fused deposition technique from stereolithographic models obtained from a Micro-CT Scan was the 88C biopolymer. Because of this result, the 88C biomaterial has the potential to be used in the manufacture of bioscaffolds in tissue engineering.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90509347","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 : 2022-10-04DOI: 10.15517/ijds.2022.52660
D. Ceyhan
Child abuse is a universal problem with critical lifelong effects. This study aimed to evaluate knowledge, attitudes, experiences of dentists regarding child abuse and to increase relevant awareness of them. A self-administered questionnaire with 48 questions about dentists’ personal and educational information and their level of knowledge, attitudes, experiences on child abuse was implemented. Out of targeted 305 participants, 183 (60.0%) returned completely filled out questionnaires. Majority of participants knew signs and symptoms of child abuse. Of the participants, more than half were well-informed on what to do, however, one quarter had no knowledge about where to report in case of child abuse. In identifying child abuse, 39.3% of the participants found themselves inadequate. The most commonly stated reason for low rate of reporting was hesitancy to identify the case as abuse, and all participants needed more training. Only 12 (6.6%) participants suspected a case of child abuse. Dentists who had children and were long-time experienced and generalist did not have sufficient knowledge about legal obligations, signs and symptoms of child abuse (p<0.05). Arrangements and training programs to increase knowledge, awareness, and responsibility levels of dentists about child abuse appear to be a critically important topic.
{"title":"Knowledge, Attitudes, and Experiences of a Group of Turkish Dentists regarding Child Abuse","authors":"D. Ceyhan","doi":"10.15517/ijds.2022.52660","DOIUrl":"https://doi.org/10.15517/ijds.2022.52660","url":null,"abstract":"Child abuse is a universal problem with critical lifelong effects. This study aimed to evaluate knowledge, attitudes, experiences of dentists regarding child abuse and to increase relevant awareness of them. A self-administered questionnaire with 48 questions about dentists’ personal and educational information and their level of knowledge, attitudes, experiences on child abuse was implemented. Out of targeted 305 participants, 183 (60.0%) returned completely filled out questionnaires. Majority of participants knew signs and symptoms of child abuse. Of the participants, more than half were well-informed on what to do, however, one quarter had no knowledge about where to report in case of child abuse. In identifying child abuse, 39.3% of the participants found themselves inadequate. The most commonly stated reason for low rate of reporting was hesitancy to identify the case as abuse, and all participants needed more training. Only 12 (6.6%) participants suspected a case of child abuse. Dentists who had children and were long-time experienced and generalist did not have sufficient knowledge about legal obligations, signs and symptoms of child abuse (p<0.05). Arrangements and training programs to increase knowledge, awareness, and responsibility levels of dentists about child abuse appear to be a critically important topic.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74200995","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 : 2022-09-27DOI: 10.15517/ijds.2022.52583
Febe C. Vázquez Vázquez, Lourdes Y. Avalos Piña, Alejandra Rodríguez Hidalgo, A. Pozos-Guillen, Patricia González‐Alva, M. Montero-Aguilar, D. Chavarría-Bolaños, Marco A. Álvarez Pérez
The present study aimed to compare the adhesion and proliferation of human periodontal ligament fibroblasts (hPDL) in transverse sections of the teeth sealed with two different obturation techniques, BioRoot RCS/hydraulic obturation (HO) and AH-Plus/continuous-wave condensation (CWC). The techniques were tested using an in vitro model to simulate the interaction between periodontal tissues and the materials. The root canals were instrumented and sterilized. A total of 15 samples were obturated with BioRoot RCS/HO and 15 samples with AH-Plus/CWC. Then, roots were sectioned to obtain obturated teeth slices, and hPDL cells were seeded onto the root slices. The results were obtained at intervals of 4 and 24 h for cell adhesion; and at 3,7,14, and 21 days for cell proliferation. Empty cell culture plates were use as controls. The cell adhesion was increased at 4 and 24 h for both groups, with an increased response observed in the BioRoot RCS/HO group (p<0.05). The difference in cell proliferation was also found between experimental groups. After 14 days of culture, BioRoot RCS/HO group showed an increase response than control and AH-Plus/CWC groups (p<0.05), and after 21 days both groups behaved better than control group, with an increased response observed in the BioRoot RCS/HO group. This study demonstrated that both root canal sealers allow the attach and growth of periodontal ligament fibroblasts, with an increased biological response in the BioRoot RCS/HO group.
{"title":"Comparison of Two Obturation Techniques on Adhesion and Proliferation of Human Periodontal Ligament Fibroblasts","authors":"Febe C. Vázquez Vázquez, Lourdes Y. Avalos Piña, Alejandra Rodríguez Hidalgo, A. Pozos-Guillen, Patricia González‐Alva, M. Montero-Aguilar, D. Chavarría-Bolaños, Marco A. Álvarez Pérez","doi":"10.15517/ijds.2022.52583","DOIUrl":"https://doi.org/10.15517/ijds.2022.52583","url":null,"abstract":"The present study aimed to compare the adhesion and proliferation of human periodontal ligament fibroblasts (hPDL) in transverse sections of the teeth sealed with two different obturation techniques, BioRoot RCS/hydraulic obturation (HO) and AH-Plus/continuous-wave condensation (CWC). The techniques were tested using an in vitro model to simulate the interaction between periodontal tissues and the materials. The root canals were instrumented and sterilized. A total of 15 samples were obturated with BioRoot RCS/HO and 15 samples with AH-Plus/CWC. Then, roots were sectioned to obtain obturated teeth slices, and hPDL cells were seeded onto the root slices. The results were obtained at intervals of 4 and 24 h for cell adhesion; and at 3,7,14, and 21 days for cell proliferation. Empty cell culture plates were use as controls. The cell adhesion was increased at 4 and 24 h for both groups, with an increased response observed in the BioRoot RCS/HO group (p<0.05). The difference in cell proliferation was also found between experimental groups. After 14 days of culture, BioRoot RCS/HO group showed an increase response than control and AH-Plus/CWC groups (p<0.05), and after 21 days both groups behaved better than control group, with an increased response observed in the BioRoot RCS/HO group. This study demonstrated that both root canal sealers allow the attach and growth of periodontal ligament fibroblasts, with an increased biological response in the BioRoot RCS/HO group.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88404219","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 : 2022-09-22DOI: 10.15517/ijds.2022.52533
Gizem Ayan, B. Dayı
Obesity is a chronic disease that may be related to caries, periodontitis, xerostomia, and dental erosion, as well as increasing morbidity and mortality. The aim of this study was to evaluate the plaque index (Silness & Löe, 1964), the gingival index (Löe & Silness, 1963), and the oral health-related quality of life (OHRQoL) in obese patients. The study included 45 extremely obese, 45 obese, and 45 normal-weight individuals between the ages of 18 and 58. The plaque index and gingival index of the individuals were determined by clinical examination by probing. In addition, the Oral Health Impact Profile-14 (OHIP-14) questionnaire was used for the OHRQoL. The IBM SPSS Statistic 22.0 software program was used for the statistical evaluation of the study data. The plaque index and gingival index values were statistically higher in obese compared to normal weight individuals (p<0.05). Both plaque index and gingival index values were not statistically significant between the extremely obese and control groups (p>0.05). There was no statistically significant difference between the OHIP-14 total scores of the groups (p>0.05). Increased apparent plaque index and gingival index values in obese patients may adversely affect periodontal health.
{"title":"Evaluation of Plaque Index, Gingival Index and Oral Health-Related Quality of Life in Obese Patiens","authors":"Gizem Ayan, B. Dayı","doi":"10.15517/ijds.2022.52533","DOIUrl":"https://doi.org/10.15517/ijds.2022.52533","url":null,"abstract":"Obesity is a chronic disease that may be related to caries, periodontitis, xerostomia, and dental erosion, as well as increasing morbidity and mortality. The aim of this study was to evaluate the plaque index (Silness & Löe, 1964), the gingival index (Löe & Silness, 1963), and the oral health-related quality of life (OHRQoL) in obese patients. The study included 45 extremely obese, 45 obese, and 45 normal-weight individuals between the ages of 18 and 58. The plaque index and gingival index of the individuals were determined by clinical examination by probing. In addition, the Oral Health Impact Profile-14 (OHIP-14) questionnaire was used for the OHRQoL. The IBM SPSS Statistic 22.0 software program was used for the statistical evaluation of the study data. The plaque index and gingival index values were statistically higher in obese compared to normal weight individuals (p<0.05). Both plaque index and gingival index values were not statistically significant between the extremely obese and control groups (p>0.05). There was no statistically significant difference between the OHIP-14 total scores of the groups (p>0.05). Increased apparent plaque index and gingival index values in obese patients may adversely affect periodontal health.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81816641","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 : 2022-09-21DOI: 10.15517/ijds.2022.52525
Andrés R. Cervantes-Chavarría, Rebeca Rojas-Guzmán
Hemicrania continua is an uncommon headache disorder that requires complete response to indomethacin for its diagnosis, that becomes on most of the cases chronic pain resilient to treatment. On the other hand, temporomandibular pain is very common on the general population and happens to be undiagnosed most of the time when headache or migraines are happening at the same time. In this case we aim to highlight the importance of treating all concomitant diagnosis for a better long-term prognosis. In this paper, a case of a 51-year-old male with chronic resilient facial pain is presented. The patient described right sided facial pain with six years of evolution that started with no triggers. The pain was described as constant bilateral pressure being worse on the right side, located on the temples, masseteric and preauricular areas; with an intensity of 6 on a scale of 0 to 10. It is accompanied by episodes of paroxysmal pulsating hemifacial pain with autonomic symptoms (rhinorrhea, conjunctival injections and lacrimation). The pain during exacerbations was located on the right periorbital and hemifacial area and with an intensity of 10 on a scale of 0 to 10, lasting a few minutes to more than 2 hours. After the clinical examination and pain history, the patient was given the diagnosis of hemicrania continua and masticatory myofascial pain. He was started on Indomethacin 25mg twice a day and started on temporomandibular therapy (self-care, jaw exercises, motivation and advice for stress management). Three months after the first evaluation the patient reported total resolution of his symptoms. The main goal of this article is to highlight that the presence of temporomandibular disorders is common in patients with headaches, for which it is necessary to carry out a comprehensive approach for both entities, which include the therapies for treating axis I diagnosis and behavioral management for axis II, this including most of the time a multidisciplinary human centered approach.
{"title":"Hemicrania continua and Temporomandibular Disorders Co-Presentation. Case Report","authors":"Andrés R. Cervantes-Chavarría, Rebeca Rojas-Guzmán","doi":"10.15517/ijds.2022.52525","DOIUrl":"https://doi.org/10.15517/ijds.2022.52525","url":null,"abstract":"Hemicrania continua is an uncommon headache disorder that requires complete response to indomethacin for its diagnosis, that becomes on most of the cases chronic pain resilient to treatment. On the other hand, temporomandibular pain is very common on the general population and happens to be undiagnosed most of the time when headache or migraines are happening at the same time. In this case we aim to highlight the importance of treating all concomitant diagnosis for a better long-term prognosis. In this paper, a case of a 51-year-old male with chronic resilient facial pain is presented. The patient described right sided facial pain with six years of evolution that started with no triggers. The pain was described as constant bilateral pressure being worse on the right side, located on the temples, masseteric and preauricular areas; with an intensity of 6 on a scale of 0 to 10. It is accompanied by episodes of paroxysmal pulsating hemifacial pain with autonomic symptoms (rhinorrhea, conjunctival injections and lacrimation). The pain during exacerbations was located on the right periorbital and hemifacial area and with an intensity of 10 on a scale of 0 to 10, lasting a few minutes to more than 2 hours. After the clinical examination and pain history, the patient was given the diagnosis of hemicrania continua and masticatory myofascial pain. He was started on Indomethacin 25mg twice a day and started on temporomandibular therapy (self-care, jaw exercises, motivation and advice for stress management). Three months after the first evaluation the patient reported total resolution of his symptoms. The main goal of this article is to highlight that the presence of temporomandibular disorders is common in patients with headaches, for which it is necessary to carry out a comprehensive approach for both entities, which include the therapies for treating axis I diagnosis and behavioral management for axis II, this including most of the time a multidisciplinary human centered approach.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88627680","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 : 2022-09-14DOI: 10.15517/ijds.2022.52470
Juan Carlos Ramírez Barrantes, Francisco Javier Quesada Rojas
The aim of this in vitro study was to evaluate the biomechanical and chemical behavior of various bioactive materials in class II MOD restorations. Forty-eight standardized class II MOD cavities were prepared in sound extracted human molar teeth. The specimens were divided into four groups according to the restorative material: Group 1 (Filtek™ Z350 XT), Group 2 (Biodentine™ as a liner, and then restored with Filtek™ Z350 XT), Group 3 (Cention N™), and Group 4 (Activa™ Bioactive-Restorative). The samples were tested for fracture resistance by subjecting them to a compressive load in a Universal testing Machine. The failure modes of each specimen were evaluated. The alkalinizing potential and calcium ion release of the materials were measured. SEM-EDAX analyses were also performed for all materials. Data were analyzed using ANOVA and post hoc Tukey test (p<0.05). Group 1 showed the higher fracture resistance (p<0.05). Group 3 had greater fracture resistance values but no statistical difference from Group 4. Biodentine™ showed greater biomineralization potential. Class II MOD restorations of Group 1 displayed the higher fracture resistance; however, it was highly associated with catastrophic failure. Conversely, Biodentine™ presented a more significant bioactivity potential, and its use, as in Group 2, promoted the most favorable failure mode.
{"title":"Biomechanical and Chemical Behavior of Various Bioactive Materials in Class II Restorations","authors":"Juan Carlos Ramírez Barrantes, Francisco Javier Quesada Rojas","doi":"10.15517/ijds.2022.52470","DOIUrl":"https://doi.org/10.15517/ijds.2022.52470","url":null,"abstract":"The aim of this in vitro study was to evaluate the biomechanical and chemical behavior of various bioactive materials in class II MOD restorations. Forty-eight standardized class II MOD cavities were prepared in sound extracted human molar teeth. The specimens were divided into four groups according to the restorative material: Group 1 (Filtek™ Z350 XT), Group 2 (Biodentine™ as a liner, and then restored with Filtek™ Z350 XT), Group 3 (Cention N™), and Group 4 (Activa™ Bioactive-Restorative). The samples were tested for fracture resistance by subjecting them to a compressive load in a Universal testing Machine. The failure modes of each specimen were evaluated. The alkalinizing potential and calcium ion release of the materials were measured. SEM-EDAX analyses were also performed for all materials. Data were analyzed using ANOVA and post hoc Tukey test (p<0.05). Group 1 showed the higher fracture resistance (p<0.05). Group 3 had greater fracture resistance values but no statistical difference from Group 4. Biodentine™ showed greater biomineralization potential. Class II MOD restorations of Group 1 displayed the higher fracture resistance; however, it was highly associated with catastrophic failure. Conversely, Biodentine™ presented a more significant bioactivity potential, and its use, as in Group 2, promoted the most favorable failure mode.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2022-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80905537","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：