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":"4 1","pages":""},"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":"40 1","pages":""},"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":"90 1","pages":""},"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":"15 1","pages":""},"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":"13 1","pages":""},"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":"58 1","pages":""},"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}
Pub Date : 2022-09-12DOI: 10.15517/ijds.2022.52446
Luis Javier Solís-Martínez, Karla Yareli Valles Flores, Nohé Vargas Chávez, O. Almeda-Ojeda, Víctor Hiram Barajas-Pérez, Edgar García-Torres
Dental fluorosis can cause changes in the enamel surface, conditioning its functionality and esthetics. The application of dental adhesives is a treatment option; however, their use on fluorotic teeth can result in limitations. The aim of this study was to compare the shear bond strength of two different adhesives, one with 10-MDP and one without 10-MDP, in different degrees of dental fluorosis.This is an in vitro study on dental enamel samples, a total of 180 samples with the inclusion criteria were treated, randomly divided into two groups of 90, according to the type of dental adhesive, where each group was again divided into three groups of 30 samples, representing different degrees of dental fluorosis according to the Thylstrup-Fejerskov index (Group I: TF1 and TF2; Group II: TF3; Group III: TF4). Normality tests, two-factor ANOVA, and post-hoc tests were used to determine differences between the groups, with a significance level of 95%. As results, a statistically significant difference was shown between the use of dental adhesive with 10-MDP and the three groups of dental fluorosis (p=0.011), in addition, a Tukey post-hoc test on the groups treated with 10-MDP adhesive revealed a statistically significant difference between group I versus group II, and group I versus group III, (p=<0.05). It is concluded that the use of adhesive systems with 10-MDP presents a better shear bond strength on enamel with dental fluorosis grades I and II in the Thylstrup-Fejerskov index.
{"title":"Bond Strength Comparison Among 10-MDP-Containing and Non-10-MDP-Containing Adhesives in Different Degrees of Dental Fluorosis","authors":"Luis Javier Solís-Martínez, Karla Yareli Valles Flores, Nohé Vargas Chávez, O. Almeda-Ojeda, Víctor Hiram Barajas-Pérez, Edgar García-Torres","doi":"10.15517/ijds.2022.52446","DOIUrl":"https://doi.org/10.15517/ijds.2022.52446","url":null,"abstract":"Dental fluorosis can cause changes in the enamel surface, conditioning its functionality and esthetics. The application of dental adhesives is a treatment option; however, their use on fluorotic teeth can result in limitations. The aim of this study was to compare the shear bond strength of two different adhesives, one with 10-MDP and one without 10-MDP, in different degrees of dental fluorosis.This is an in vitro study on dental enamel samples, a total of 180 samples with the inclusion criteria were treated, randomly divided into two groups of 90, according to the type of dental adhesive, where each group was again divided into three groups of 30 samples, representing different degrees of dental fluorosis according to the Thylstrup-Fejerskov index (Group I: TF1 and TF2; Group II: TF3; Group III: TF4). Normality tests, two-factor ANOVA, and post-hoc tests were used to determine differences between the groups, with a significance level of 95%. As results, a statistically significant difference was shown between the use of dental adhesive with 10-MDP and the three groups of dental fluorosis (p=0.011), in addition, a Tukey post-hoc test on the groups treated with 10-MDP adhesive revealed a statistically significant difference between group I versus group II, and group I versus group III, (p=<0.05). It is concluded that the use of adhesive systems with 10-MDP presents a better shear bond strength on enamel with dental fluorosis grades I and II in the Thylstrup-Fejerskov index.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"32 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89568748","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 : 2022-09-09DOI: 10.15517/ijds.2022.52426
Natalia Gutiérrez-Marín, A. López-Soto
The objective of this research was to use the Dental Satisfaction Questionnaire to determine the level of patient’s satisfaction who come to the School of Dentistry of the University of Costa Rica. The research was conducted with the entire population of patients who received dental care in the Undergraduate Student Clinics of the School of Dentistry between April and September 2021. A digital survey was generated with the questions of the DSQ and sociodemographic variables, which was sent by email. Descriptive statistics were performed to establish the absolute and relative frequency, as well as measures of central tendency and variability, according to the nature of the variables. The Kolmogorov-Smirnov test was used in the conformity assessment of the data for the normal distribution. The relationships between the scores obtained from the Dental Satisfaction Questionnaire and the sociodemographic variables were analyzed using the Mann-Whitney U Test and the Kruskal-Wallis Test. A response rate of 36% was obtained. 98.5% of the subjects were satisfied with the services received. There was a statistically significant difference between the frequency of visits and the dental satisfaction scale (p=0.001). The scoring by type of clinic with regards to access, pain management, cost and availability were statistically significant (p=0.001, p=0.014, p=0.001, p=0.001, respectively). The differences in the relationship between the age groups and access was significant (p=0.014); in addition to that between education level and cost (p=0.001). A large majority of patients who come to the services of the School of Dentistry UCR are satisfied with the service received.
{"title":"Patients Satisfaction with Dental Service, School of Dentistry, University of Costa Rica","authors":"Natalia Gutiérrez-Marín, A. López-Soto","doi":"10.15517/ijds.2022.52426","DOIUrl":"https://doi.org/10.15517/ijds.2022.52426","url":null,"abstract":"The objective of this research was to use the Dental Satisfaction Questionnaire to determine the level of patient’s satisfaction who come to the School of Dentistry of the University of Costa Rica. The research was conducted with the entire population of patients who received dental care in the Undergraduate Student Clinics of the School of Dentistry between April and September 2021. A digital survey was generated with the questions of the DSQ and sociodemographic variables, which was sent by email. Descriptive statistics were performed to establish the absolute and relative frequency, as well as measures of central tendency and variability, according to the nature of the variables. The Kolmogorov-Smirnov test was used in the conformity assessment of the data for the normal distribution. The relationships between the scores obtained from the Dental Satisfaction Questionnaire and the sociodemographic variables were analyzed using the Mann-Whitney U Test and the Kruskal-Wallis Test. A response rate of 36% was obtained. 98.5% of the subjects were satisfied with the services received. There was a statistically significant difference between the frequency of visits and the dental satisfaction scale (p=0.001). The scoring by type of clinic with regards to access, pain management, cost and availability were statistically significant (p=0.001, p=0.014, p=0.001, p=0.001, respectively). The differences in the relationship between the age groups and access was significant (p=0.014); in addition to that between education level and cost (p=0.001). A large majority of patients who come to the services of the School of Dentistry UCR are satisfied with the service received.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"97 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85912552","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 : 2022-09-08DOI: 10.15517/ijds.2022.52413
Heikky N. Izaguirre-López, Daniel G. Suarez-Ponce, Milushka Quezada-Márquez, Violeta A. Nolberto-Sifuentes, Erika R. Alvarado-Muñoz
To determine the accuracy of the Kvaal method in the estimation of dental age through the analysis of digital panoramic radiographs of patients between 20 and 47 years of age who attended the stomatological clinic of the Universidad Científica del Sur, (2018 to 2019), Lima-Perú. 289 digital panoramic radiographs belonging to individuals of both sexes, aged 20 to 47 years were analyzed. Length and width measurements were obtained in the dental and pulp chamber in the upper central incisors. These data were subsequently evaluated by calculating the proportions between the pulp and root length of the upper central incisor by applying the formula of the method of Kvaal et al. to obtain the accuracy of the method in estimating dental age. Applying the formula of Kvaal et al. indicates that the relationship between the width of the pulp and the length of the root has a higher level of significance in relation to others proportions: M mean value of all ratios except T (-0.659) and W-L difference between W and L (-0.643). The coefficient of determination (r²) and standard error of estimation (SEE) using the original Kvaal formula is r²: 0.70, SEE: 4.90 years, then a modified Kvaal formula was proposed for the Peruvian population. The Method of Kvaal et al. has an accuracy of 1.24 in estimating the dental age of individuals, using the upper central incisor in digital panoramic radiographs.
为了确定Kvaal方法在估计牙齿年龄方面的准确性，通过分析在universsidad Científica del Sur牙科诊所就诊的20至47岁患者的数字全景x线片(2018年至2019年)，Lima-Perú。本文分析了年龄在20 ~ 47岁的289张男女数字全景x线片。测量上中切牙牙室和牙髓室的长度和宽度。然后应用Kvaal等人的计算公式计算上中切牙牙髓与牙根长度的比例来评估这些数据，以获得该方法估算牙龄的准确性。应用Kvaal等人的公式可知，牙髓宽度与根长之间的关系相对于其他比例具有较高的显著性:除T(-0.659)和W-L之间的差值(-0.643)外，所有比例的均值均为M。采用原Kvaal公式的决定系数(r²)和估计标准误差(SEE)为r²:0.70,SEE: 4.90年，然后提出了秘鲁人口的修正Kvaal公式。Kvaal等人的方法在使用数字全景x线照片上的上中切牙估计个体牙齿年龄的准确性为1.24。
{"title":"Estimation of Dental Age Using the Kvaal Method with Digital Panoramic Radiographs in Peruvian Adults","authors":"Heikky N. Izaguirre-López, Daniel G. Suarez-Ponce, Milushka Quezada-Márquez, Violeta A. Nolberto-Sifuentes, Erika R. Alvarado-Muñoz","doi":"10.15517/ijds.2022.52413","DOIUrl":"https://doi.org/10.15517/ijds.2022.52413","url":null,"abstract":"To determine the accuracy of the Kvaal method in the estimation of dental age through the analysis of digital panoramic radiographs of patients between 20 and 47 years of age who attended the stomatological clinic of the Universidad Científica del Sur, (2018 to 2019), Lima-Perú. 289 digital panoramic radiographs belonging to individuals of both sexes, aged 20 to 47 years were analyzed. Length and width measurements were obtained in the dental and pulp chamber in the upper central incisors. These data were subsequently evaluated by calculating the proportions between the pulp and root length of the upper central incisor by applying the formula of the method of Kvaal et al. to obtain the accuracy of the method in estimating dental age. Applying the formula of Kvaal et al. indicates that the relationship between the width of the pulp and the length of the root has a higher level of significance in relation to others proportions: M mean value of all ratios except T (-0.659) and W-L difference between W and L (-0.643). The coefficient of determination (r²) and standard error of estimation (SEE) using the original Kvaal formula is r²: 0.70, SEE: 4.90 years, then a modified Kvaal formula was proposed for the Peruvian population. The Method of Kvaal et al. has an accuracy of 1.24 in estimating the dental age of individuals, using the upper central incisor in digital panoramic radiographs.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"37 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91346117","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 : 2022-09-07DOI: 10.15517/ijds.2022.52388
Mónica Orozco-Gallardo, E. Gutiérrez-Cortés, S. J. Vázquez-Alcaraz, A. D. Valdivia
This paper aimed to present a clinical case presenting an unusual periapical radiolucent lesion, its approach and treatment, and as an element of differential diagnosis in periapical pathology. Foreign body granuloma (FBG) is a tissue reaction that is triggered by the deposit of a foreign material affecting the skin and internal organs that the immune system tries to delimit and, if possible, eliminate. FBG may constitute a complication of a surgical procedure or a new pathology for the patient, which precedes an iatrogenic event causing diagnostic difficulties. This study presented an unusual periapical radiolucent lesion in a male patient with a periapical radiolucent area found in panoramic radiography; the lesion was enucleated, histopathologically confirming an FBG, which was the result of a biomaterial used in surgery for nasal polyps and deviated septum performed years before. This case shows us a very unusual presentation of an FBG within the maxillary bone after surgery for nasal polyps and deviated septum. The appropriate use of the available imaging tools and histopathological study and interpretation is emphasized, to be able to carry out a successful long-term treatment with the lowest chances of recurrence. In addition, an interdisciplinary approach is very important, which leads us to the comprehensive treatment of the patient. The proper use of diagnostic and imaging methods that we currently have, as well as knowledge of differential diagnoses, is essential to successfully diagnose and treat injuries in the maxillofacial area.
{"title":"Foreign Body Granuloma in the Maxillofacial Region: Report of an Unusual Case","authors":"Mónica Orozco-Gallardo, E. Gutiérrez-Cortés, S. J. Vázquez-Alcaraz, A. D. Valdivia","doi":"10.15517/ijds.2022.52388","DOIUrl":"https://doi.org/10.15517/ijds.2022.52388","url":null,"abstract":"This paper aimed to present a clinical case presenting an unusual periapical radiolucent lesion, its approach and treatment, and as an element of differential diagnosis in periapical pathology. Foreign body granuloma (FBG) is a tissue reaction that is triggered by the deposit of a foreign material affecting the skin and internal organs that the immune system tries to delimit and, if possible, eliminate. FBG may constitute a complication of a surgical procedure or a new pathology for the patient, which precedes an iatrogenic event causing diagnostic difficulties. This study presented an unusual periapical radiolucent lesion in a male patient with a periapical radiolucent area found in panoramic radiography; the lesion was enucleated, histopathologically confirming an FBG, which was the result of a biomaterial used in surgery for nasal polyps and deviated septum performed years before. This case shows us a very unusual presentation of an FBG within the maxillary bone after surgery for nasal polyps and deviated septum. The appropriate use of the available imaging tools and histopathological study and interpretation is emphasized, to be able to carry out a successful long-term treatment with the lowest chances of recurrence. In addition, an interdisciplinary approach is very important, which leads us to the comprehensive treatment of the patient. The proper use of diagnostic and imaging methods that we currently have, as well as knowledge of differential diagnoses, is essential to successfully diagnose and treat injuries in the maxillofacial area.","PeriodicalId":19450,"journal":{"name":"Odovtos - International Journal of Dental Sciences","volume":"84 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89029432","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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