Roughness assessment of colored compomers: Results after an erosive-abrasive in vitro cycling test.

Background: The present in vitro study aimed to evaluate and compare the surface roughness of a colored compomer and a composite resin, after 15 days of erosive-abrasive cycling. Material and Methods: The sample included ninety circular specimens, randomly divided (n = 10): G1 Berry, G2 Gold, G3 Pink, G4 Lemon, G5 Blue, G6 Silver, G7 Orange and G8 Green, referring to the different colors of compomer (Twinky Star®, VOCO, Germany) and G9 for composite resin (Z250®, 3M ESPE). The specimens were submerged in artificial saliva and stored at 37°C for 24 hours. After polishing and finishing, the specimens were submitted to initial roughness (R1). Then, the specimens were submerged in an acidic cola-based drink for 1 minute and then exposed to electric toothbrushing for 2 minutes for 15 days. After this period, the final roughness (R2) and the ΔRa were performed. Data were submitted to ANOVA and Tukey's test for intergroup comparison and paired T-test for intragroup comparison (p<0.05). Results: Among compomers, the green color presented the higher/lower initial and final roughness values (0.94 ± 0.44, 1.35 ± 0.55) with lemon color presenting the most prominent real roughness increase (ΔRa = 0,74) whereas composite resin showed the lower values (0,17 ± 0.06, 0,31 ± 0.15; ΔRa = 0,14). Conclusions: All compomers, after the erosive-abrasive challenge, presented an increase in roughness values when compared to composite resin with a highlight to green tones. Key words:Compomers, composite resins, surface properties.

Salivary and Dental Plaque Composition in Disabled Children Who Require Home Care: A Cross-sectional Investigation.

Aims: The purpose of this study was to compare salivary and dental plaque (DP) composition between disabled children who require home care (DCHC) and a control group (CG) and to correlate it with oral and systemic health factors. Materials and Methods: This cross-sectional study included 15 DCHC and 15 healthy children (aged between 4 and 10 years). The caregivers answered a questionnaire on disease diagnosis, medical history, dental history, and oral hygiene routine. In addition to clinical examination, saliva and DP samples were collected and analyzed using attenuated total reflection-Fourier transform infrared spectroscopy. Data were collected between January and December 2019. Student's t and Kendall correlation tests were used. Results: Calculus (46.7%), bleeding on toothbrushing (53.3%), and gingival hyperplasia (40.0%) were prevalent in DCHC. The saliva of DCHC presented a higher amount of lipids and collagen and a lower amount of carbohydrates than that of the CG (P < 0.05). DP components were similar in DCHC and CG. Conclusion: DCHC presented oral comorbidities and changes in salivary composition, compared with the CG.

Oral Health Status of Children Who Require In-Home Medical Care.

Purpose: To evaluate the oral health status of children who require in-home medical care, their oral hygiene and eating habits, and the association between oral health status and medical conditions.
Methods: Legal guardians of children who need in-home medical care were interviewed regarding their socioeconomic level and their children's medical and dental history, as well as their oral hygiene habits. An oral exam assessed the children's plaque level, caries experience, and periodontal disease. Descriptive and bivariate analyses were performed.
Results: Fifty-six children participated. Almost 61 percent had never received dental care and 58.9 percent had fair or poor oral hygiene. The most observed oral problems were gingival hyperplasia (46.4 percent), calculus (46.4 percent), and gingivitis (30.3 percent). The use of anticonvulsants and type of food were factors that correlated to calculus, gingivitis, or hyperplasia (P <0.05).
Conclusion: A significant number of children who require in-home medical care presented with deficient oral hygiene and periodontal problems, which were correlated with the use of anticonvulsants and gastrostomy feeding.

In vitro tooth reattachment techniques: A systematic review.

BACKGROUND/AIMS: Fragment reattachment is a procedure that offers advantages, such as preservation of tooth structure and maintenance of color, shape, and translucency of the original tooth. The aim of this study was to analyze the reattachment techniques used to restore anterior teeth fractured by trauma. MATERIALS AND METHODS: The PubMed, LILACS, Web of Science, Cochrane, and Scopus databases were searched in October 2016, and the search was updated in February 2017. A search of the gray literature was performed in Google Scholar and OpenGrey. Reference lists of eligible studies were evaluated to identify additional studies. Two authors assessed studies for inclusion and extracted the data. In vitro studies that evaluated permanent human teeth fractured by trauma were included. RESULTS: Twenty-one studies remained after screening. The bond strength between the fragment and the crown was evaluated in 119 experimental groups. Ten different techniques were evaluated as follows: no preparation, chamfer, bevel, anchors, overcontour, internal groove, no preparation associated with chamfer after reattachment, fragment dentin removal associated with chamfer after reattachment, bevel associated with overcontour, and groove associated with shoulder. Five different materials were used to reattach the fragment: bonding system, luting composite resin, flowable composite, microhybrid composite, and nanocomposite. CONCLUSION: Fragment reattachment using a technique with no preparation and an adhesive system associated with an intermediate composite with good mechanical properties can restore part of the resistance of the fractured tooth.

Prevalence of dental trauma in disabled persons seen at the dental clinic for special-needs patients of the Catholic University of Brasília (UCB) / Prevalência de traumatismo dentário em pacientes com deficiência atendidos na clínica de pacientes especiais da Universidade Católica de Brasília (UCB)

Introduction: In Brazil, dental trauma (DT) is considered a public health problem. However, few studies in the literature report the prevalence of DT in disabled persons (DP). Objective: The aim of this study was to assess the prevalence of DT among DP seen at the Dental Clinic for Special-Needs Patients (COPE) of the Catholic University of Brasília. Material and method: A retrospective, descriptive study analyzing 73 medical charts of DP seen at the COPE between 2014 and 2016 was conducted. Clinical and sociodemographic data were collected. The t-test was used to check for significant differences between the categories of the variables analyzed. The Statistical Package for Social Sciences (SPSS), version 23.0 (IBM Corporation, Armonk, NY, USA) was used for all statistical analyses (p < 0.05). Result: A DT prevalence of 33/73 (45.2%) was found among DP. The predominant type of fracture was crown fracture (26/33-78.8%). The majority of patients were over 20 years old (63/73 - 86.3%), at a proportion significantly higher than those for the other age categories (p < 0.008). The patients in the sample had a variety of diseases, predominantly in the following categories: mental (22/73- 30.1%), multiple (19/73-26%), and systemic (14/73-19.2%). Conclusion: A high prevalence of DT was found in DP, with the majority of cases being related to mental and multiple diseases. Further research is needed to assess the prevalence of DT in this patient group throughout the Federal District.

Introdução: No Brasil, o traumatismo dentário (TD) é considerado um problema de saúde pública. No entanto, poucos estudos na literatura relatam a prevalência de TD em pessoas com deficiência (PD). Objetivo: O objetivo deste trabalho foi avaliar a prevalência de TD em PD atendidas na Clínica de Pacientes Especiais da Universidade Católica de Brasília (COPE). Material e método: Este estudo seguiu um delineamento descritivo e retrospectivo, e foi realizado por meio da análise de 73 prontuários de PD atendidas na COPE entre 2014 e 2016. Foram coletados dados sociodemográficos e clínicos. O teste t foi utilizado entre as proporções para determinar se houve diferenças significativas entre as categorias das variáveis analisadas. O programa "Statistical Package for Social Sciences" (SPSS), versão 23.0 (IBM Corporation, Armonk, NY, EUA) foi utilizado nas análises (p<0,05). Resultado: Encontrou-se uma prevalência de TD de 33/73 (45,2%) entre os PD. A fratura predominante foi a do tipo coronária, com uma frequência de 26/33 (78,8%). A maioria dos pacientes tinha acima de 20 anos, com uma frequência de 63/73 (86,3%), significativamente maior do que as frequências das outras categorias (p < 0,008). Os pacientes da amostra apresentavam doenças variadas, sendo as mais prevalentes as das categorias mental, com frequência de 22/73 (30,1%), múltipla com 19/73 (26%), e sistêmica com 14/73 (19,2%). Conclusão: Foi encontrada uma alta prevalência de TD em PD, sendo a maioria dos casos relacionados a doenças mentais e múltiplas. Futuras pesquisas são necessárias para avaliar a prevalência de TD nesse grupo de pacientes em todo o Distrito Federal.