ABSTRACT
BACKGROUND: Surface coating technology can assist fixed appliances by reducing friction, improving antibacterial characteristics, and increasing corrosion resistance. The application of functional coatings composed of graphene onto the surfaces of orthodontic brackets and archwires has been shown to enhance their mechanical qualities. The objective of the current study was to carry out a scoping analysis of published recent evidence on the utilization of graphene as a covering material in metallic orthodontic accessories, such as brackets and archwires; Methods: A scoping review was undertaken following the PRISMA-ScR guidelines. PubMed, Embase, the Cochrane Library, Dentistry and Oral Science Source, and Google Scholar were searched between 2003 and 2023; Results: In total, 38 potential references were detected, from which 10 were selected for this review. These articles addressed the benefits of the application of graphene-oxide functional coatings onto the surface of archwires and brackets during fixed orthodontic treatment. Orthodontic graphene-oxide-based coatings provide improved surface characteristics (e.g., reduced friction and anticorrosive effects), antibacterial capabilities, and biocompatibility. These characteristics can increase the effectiveness of orthodontic therapy, improve patient comfort, and lower the likelihood of problems; Conclusion: Orthodontists should be aware of and comprehend the prerequisites for using graphene-oxide-coated archwires and brackets to fulfill needs throughout their clinical practice.
ABSTRACT
Introducción: Los caninos son piezas dentarias consideradas como importantes en el sistema estomatognático. En la actualidad existe una gran cantidad de pacientes con caninos impactados en México y el tratamiento es desafiante desde una perspectiva diagnóstica y terapéutica para los especialistas. El tratamiento ortodóntico-quirúrgico se ha vuelto el método preferido por los clínicos tanto especialistas en ortodoncia como cirujanos maxilofaciales.Objetivo: Determinar el grado de coincidencia en los criterios para el manejo quirúrgico de caninos impactados/ retenidos.Material y métodos: Fue un estudio observacional descriptivo y analítico. Se aplicó un cuestionario que consistió de 29 preguntas con un tamaño de muestra de 30 ortodoncistas y 30 cirujanos maxilofaciales.Resultados: Este estudio encontró en promedio un nivel moderado de concordancia (54 %) en el manejo de los caninos retenidos entre cirujanos maxilofaciales y ortodoncistas.Conclusiones: Nuestros resultados indican que, aunque existe alguna alineación en las prácticas de manejo entre estos dos grupos profesionales, también hay una considerable variabilidad. Esto puede reflejar diferencias en la formación, experiencia y preferencias individuales. A pesar de la limitación de una muestra pequeña, estos hallazgos sugieren la necesidad de directrices clínicas más claras y/o formación adicional para mejorar la coherencia en el manejo de los caninos retenidos. (AU)
Introduction: Canines are dental pieces considered as important in the stomatognathic system. Currently, there is a large number of patients with impacted canines in Mexico, and treatment is challenging from a diagnostic and therapeutic perspective for specialists. Orthodonticsurgical treatment has become the preferred method by clinicians, both orthodontics specialists and maxillofacial surgeons.Objective: To determine the degree of agreement in the criteria for the surgical management of impacted/retained canines.Materials and methods: It was a descriptive and analytical observational study. A questionnaire consisting of 29 questions was applied with a sample size of 30 orthodontists and 30 maxillofacial surgeons.Results: This study found on average a moderate level of agreement (54 %) in the management of retained canines between maxillofacial surgeons and orthodontists.Conclusions: Our results indicate that, although there is some alignment in management practices between these two professional groups, there is also considerable variability. This may reflect differences in training, experience, and individual preferences. Despite the limitation of a small sample, these findings suggest the need for clearer clinical guidelines and/or additional training to improve consistency in the management of retained canines. (AU)
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Cuspid/surgery , Cuspid/abnormalities , Tooth, Impacted/surgery , Epidemiology, Descriptive , Surveys and Questionnaires , Cross-Sectional Studies , Orthodontists , Oral and Maxillofacial SurgeonsABSTRACT
Posterior a un tratamiento endodóntico, muchas veces el remanente es insuficiente para la retención de un material de restauración, por este motivo es necesario la colocación de un sistema de poste-muñón para otorgar retención a la restauración final. Con la aparición de diversos materiales para las restauraciones estéticas, se utilizan actualmente resinas reforzadas con fibra de vidrio como sistemas de postes y muñones para la restauración de dientes tratados endodónticamente. El objetivo del presente trabajo fue comparar la fuerza de adhesión en la prueba push-out de dos diferentes tipos de postes de fibra de vidrio; 3M RelyX y Rebilda Post GT (VOCO) adheridos con cementos duales correspondientes a la marca de los postes; RelyX U-200® Automix (3M ESPE) y Rebilda DC (VOCO). Se llevó a cabo un análisis de ANOVA de dos vías para comparar la fuerza adhesiva con la prueba push-out entre ambos grupos de estudio. Pese a que se observó que los postes Rebilda presentaron una media de fuerza de adhesión ligeramente mayor en comparación con los postes 3M (sin diferencia estadística significativa P>0,05) los últimos son clínicamente más fáciles de colocar, lo cual pudiera ser un factor decisivo para el clínico en el momento de la elección de un poste y su sistema de adhesión.
After an endodontic treatment, many times the remnant is insufficient for the retention of a restorative material, for this reason it is necessary to place a post-stump system to provide retention to the final restoration. With the advent of various materials for esthetic restorations, fiberglass-reinforced resins are now used as post and core systems for the restoration of endodontically treated teeth. The objective of the present work was to compare the bond strength in the push-out test of 2 different types of fiberglass posts; 3M RelyX and Rebilda Post GT (VOCO) bonded with dual cements corresponding to the post brand; RelyX U-200® Automix (3M ESPE) and Rebilda DC (VOCO). A 2-way ANOVA analysis was performed to compare push-out strength between both study groups. Although it was observed that the Rebilda posts presented a slightly higher mean bond strength compared to the 3M posts (with no significant statistical difference P>0.05), the latter are clinically easier to place, which could be a decisive factor for the clinician at the time of choosing a post and its adhesion system.
ABSTRACT
A novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak has become a global ongoing pandemic. This pandemic represents a great work risk for all health professionals, it includes dental professionals who are in constant contact with saliva, which represents one of the main routes of transmission of the disease. This is due to the fact that a wide variety of oral tissues and cells are susceptible to infection by SARS-CoV-2 and that they express the ACE2 receptor, which is the main route of entry of the virus into cells, as well as the proteins TMPRSS and furin that contributes to the binding of the virus to the host cells. According to recent studies, some of the oral cells most susceptible to infection by SARS-CoV-2 are the epithelial cells of the salivary glands. This explains the presence of the virus in the saliva of infected patients and provides scientific evidence that supports the use of saliva as a biofluid that offers the opportunity to develop new detection and diagnostic techniques. This is because saliva is much easier to collect compared to nasopharyngeal swab. However, the presence of the virus in saliva, also represents a great source of transmission, since the main form of infection is through microscopic drops that are generated when infected people cough or sneeze. Likewise, health professionals, such as dentists are exposed to contagion through saliva. The objective of this review article is to provide a perspective on the main cells and tissues that can be affected by the virus, the risk of contagion that the presence of the virus in saliva represents for dentists; and the new techniques developed from saliva samples for the diagnosis and surveillance of SARS-CoV-2 infection. This review is expected to contribute to the knowledge of oral health professionals about the risk of saliva in the spread of SARS-CoV-2, but also its advantages as a diagnostic tool for pandemic control. In conclusion, the authors can mention that information that provides more scientific evidence of the mechanisms of infection of the coronavirus in oral cells and tissues is being published continually. This also explains the presence of the virus in the saliva of infected people and the risk of contagion that this means. It also provides scientific evidence of the use of saliva as a biofluid for the detection, diagnosis, monitoring, and control of the spread of the virus.
Subject(s)
COVID-19 , SARS-CoV-2 , Dentists , Humans , Professional Role , SalivaABSTRACT
Background: on 7 January 2020, a new type of coronavirus was isolated, the Severe Acute Respiratory Syndrome Coronavirus2 (SARS-CoV-2), the organism causing the outbreak that has affected the lives of all humans and has modified the rules of coexistence around the world. In Mexico, from 3 January 2020 to 9 January 2021, there have been 1439, 569 confirmed cases of COVID-19 with 131,031 deaths. The World Health Organization reported that Mexico was ranked twelfth, in terms of confirmed cases of COVID-19 by country. Aim: the objective of this study was to determine what modifications dentists from the Mexican Republic have made to their dental practice during theCOVID-19 pandemic. Methods: the study was conducted based on a questionnaire to evaluate the dentists' response and knowledge on the modifications in their dental practice to combat the new coronavirus's cross-transmission. The questionnaire was piloted before it was distributed. The questionnaire was disseminated through the social network Facebook. The questionnaire was distributed to groups of dentists on Facebook, in each of the Mexican Republic states. The survey was carried out during June 2020. Results and Conclusions: from the 32 states of the Mexican Republic, 29 participated with at least one respondent. The results of the applied survey suggest that dentists, at least the population of surveyed ones, have proper knowledge of detection methods of patients suspected of COVID-19, preventive measures that must be applied in the dental office to decrease the risk of infection, and the appropriate procedures and solutions for dental office disinfection.
Subject(s)
COVID-19/diagnosis , COVID-19/prevention & control , Dentists , Health Knowledge, Attitudes, Practice , Infection Control , Cross-Sectional Studies , Female , Humans , Male , Mexico/epidemiology , Professional Competence , Surveys and QuestionnairesABSTRACT
BACKGROUND: Opportune diagnosis, prediction, and interceptive treatment of permanent maxillary canine (PMC) impaction is fundamental for pediatric dentists and orthodontists. In children and young adolescents, diagnostic information obtained from a panoramic radiograph is valuable for the overview and prediction of a potential PMC ectopic eruption into the oral cavity. The aim of the present study was to calculate and compare the prevalence of impaction of PMC in a Mexican pediatric sample (7 to 13 years old), through the use of the Ericson & Kurol (EK/L) and the Power & Short (PS) measurement analyses performed on panoramic radiographs. MATERIAL AND METHODS: This investigation was a cross-sectional study performed on 515 panoramic radiographs, which were evaluated to assess the intraosseous position of right and left PMC, from patients who had attended our clinic between 2010 and 2017. Both analytical methods were applied on the same radiography. Outcomes from both analysis methods were expressed dichotomously (impacted or non-impacted). Thus, prevalence was calculated from each method, and the difference between them was verified through the Pearson's Chi-square test. RESULTS: No statistical difference could be detected between both prevalence rates (p = 0.475). It was found a significant predilection of the condition to the female sex (p = 0.034). Further, the two radiographic methods employed here were highly concordant each other (kappa = 0.92). CONCLUSIONS: Through the EK/L method a PMC prevalence of 5.64% (95% CI = 3.66, 7.62) was obtained, while the PS Method the prevalence was 8.83% (95% CI = 6.38, 11.28). In addition, a significant predilection of canine impaction to the female gender was found. Key words:Maxillary canine impaction, prevalence, radiographic analyses.
ABSTRACT
OBJECTIVE: To determine the levels of two sensory neuropeptides (substance P [SP] and calcitonin gene-related peptide [CGRP]) and two endogenous opioids (methionine-enkephalin [Met-Enk] and ß-endorphin [ß-End]) in dental pulp tissue samples subjected to controlled orthodontic intrusive forces. MATERIALS AND METHODS: Sixteen healthy premolars were selected from eight patients who were undergoing extraction for orthodontic purposes. Eight were randomly used as controls, and the other eight were assigned to an experimental group (controlled orthodontic intrusive forces applied for 24 hours). After this period, teeth were extracted, and pulp samples were obtained. All samples were processed to quantify the expression levels of SP, CGRP, Met-Enk, and ß-End using commercial radioimmunoassay kits. RESULTS: All samples exhibited basal levels of both neuropeptides and endogenous opioids. After 24 hours of the intrusive stimulus, all patients reported a tolerable discomfort localized at the involved premolar. Only SP was significantly increased (P<.05). For the other molecules, no statistically significant differences were observed (P>.05); however, they expressed important increasing trends. CONCLUSIONS: The expression levels of SP and CGRP in dental pulp samples from the experimental group support the positive correlation between the symptomatic clinical scenario and increased expression levels of neuropeptides, clarifying the role of neurogenic inflammation in early injury response.
Subject(s)
Calcitonin Gene-Related Peptide/analysis , Dental Pulp/chemistry , Enkephalin, Methionine/analysis , Neurotransmitter Agents/analysis , Substance P/analysis , Tooth Movement Techniques/methods , beta-Endorphin/analysis , Adolescent , Bicuspid/chemistry , Child , Female , Humans , Male , Neurogenic Inflammation/metabolism , Opioid Peptides/analysis , Pain/metabolism , Pilot ProjectsABSTRACT
El presente es el reporte de un caso de un niño de 5 años 4 meses de edad que exhibía un patrón de caries dental de la infancia temprana severa no tratada oportunamente, debido a ignorancia y posible negligencia por parte de los padres. Se describe el proceso diagnóstico y el tratamiento brindado al paciente y el manejo preventivo que se instituyó a corto, mediano y largo plazo.
This case report is of a 5 years 4 months old male patient who exhibited a pattern of severe dental early caries childhood not treated in a timely manner, due to parent ignorance and possible negligence. The diagnostic process, treatment provided to the patient, and instituted preventive management in the short, medium and long term, are described.
Subject(s)
Humans , Male , Child, Preschool , Dental Caries , MalpracticeABSTRACT
Los métodos mecánicos de la preparación del conducto radicular utilizando instrumentos de Ni-Ti se puede utilizar en dientes temporales. El objetivo del informe del caso es presentar los hallazgos radiológicos de un molar primario tratado con pulpectomía y el uso de instrumentación rotatoria para la preparación biomecánica en molar temporal de una niña de 4 años de edad.
Mechanical methods of root canal preparation using Ni-Ti files can be used in primary teeth. The aim of this case report is to present radiographic findings of a primary molar treated by pulpectomy therapy, using rotary instrumentation for biomechanical preparation in a 4-yearold girl.
