Faculdade de Odontologia do Recife

Resumo Esta pesquisa teve por objetivo investigar as narrativas de crianças autistas a respeito de suas experiências no contexto do distanciamento social, decorrente da pandemia de Covid-19. Trata-se de um estudo descritivo, de corte transversal, através do estudo de casos. Para a produção dos dados, foi realizada uma entrevista narrativa individual, com cinco participantes, entre 7 e 9 anos de idade, admitidos em um Centro de Atenção Psicossocial Infantojuvenil (CAPSij) na cidade do Recife. Para exame dos dados, foi utilizada a análise de conteúdo. A partir da exploração do material, emergiram duas categorias de análise: “Compreensão acerca da Covid-19: prevenção, sintomas, características e tratamento” e “Aspectos da rotina: mudanças e afetações”. Os dados do estudo apontaram que as crianças participantes compreendem a realidade pandêmica e reconhecem a importância das medidas sanitárias. Além disso, as narrativas apontaram que as alterações na rotina geraram nelas repercussões psíquicas e emocionais, como ansiedade, medo e tristeza.

Aim The purpose of this study was to evaluate and compare the efficiency of two obturation techniques in filling artificially designed lateral canals using three different endodontic sealers. Materials and methods Twenty-four resin blocks were used, each containing four main canals and eight lateral canals, with four located in the apical region and four in the coronal region. The primary canals were instrumented, and the blocks were divided into two groups (n = 12 per group) based on the obturation technique: Group I utilized the single-cone technique, while group II used the lateral condensation technique. Each group was further divided into three subgroups (n = 4 per subgroup) according to the type of sealer: subgroup A used AH Plus, subgroup B used BioRoot RCS, and subgroup C used GuttaFlow 2. After canals obturation, the lateral canals were examined under a stereomicroscope to measure penetration depths of sealers and fill percentages, with data subjected to statistical analysis. Results The lateral condensation technique achieved significantly better lateral canal filling compared with the single-cone technique (p < 0.05). The lateral canals in the apical region showed better filling compared with the coronal lateral canals in both obturation methods. For the lateral condensation technique, AH Plus (99.51%) and GuttaFlow 2 (99.26%) provided the highest filling performance of apical lateral canals, while BioRoot RCS (83.05%) outperformed others in filling coronal lateral canals. In the single-cone technique, BioRoot RCS (80.13%) was the most effective in the filling of the apical lateral canals, while all sealers exhibited similar performance in the filling of the coronal lateral canals. Conclusion The efficiency of filling the lateral canals was influenced by the obturation technique, the location of lateral canals, and the type of sealer. BioRoot RCS demonstrated versatility in filling apical and coronal lateral canals, while AH Plus and GuttaFlow 2 excelled primarily in filling the apical lateral canals. Clinical significance These findings offer valuable guidance to clinicians in selecting optimal sealers and obturation techniques to enhance the filling of lateral canals. How to cite this article El Sayed MAM, El Sayed NM. Comparative Evaluation of Two Obturation Techniques and Three Endodontic Sealers in Filling Lateral Canals: An In Vitro Study. J Contemp Dent Pract 2025;26(1):25–33.

This study evaluated the reliability, failure mode, and stress distribution of wide‐diameter extra‐short dental implants (ESDI) as support for single crowns (SC) and fixed partial dentures (FPD) (3:1 crown‐to‐implant ratio [C:I]) for rehabilitation in the posterior atrophic mandible. For that, 126 ESDI (of 5 mm length) were allocated in four groups based on diameter (Ø4 and Ø6 mm) and prostheses (SC and FPD): SC4, SC6, FPD4, and FPD6. The fatigue test was performed by step‐stress accelerated life testing (n = 21/group), failure mode by fractographic analysis, and stress distribution by finite element analysis: von Mises stress (σvM), maximum shear stress (τmax), and minimum principal stress (σmin). Reliability at 200 N was higher than 84% in both SC4 and SC6, with SC6 showing significantly higher reliability at 300 N. Failure mode involved the abutment (SC4 and SC6). The missions were suspended for the FPD groups due to 100% survival at the maximum load. The σvM showed a stress reduction of about 40% at the SC6 implant when compared to SC4 and FPD6 compared to FPD4. For the abutment, a minor decrease of at least 6.72% was observed comparing SC6 to SC4 and 2.78% for the FPD6 compared to FPD4. The τmax and σmin in the cortical bone demonstrated a stress reduction of at least 38.85% for the SC6 compared to SC4 and at least 3.78% in FPD6 compared to FPD4. The σmin in the cancellous bone showed an overall reduction of at least 8.46% for SC6 compared to SC4 and for FPD6 compared to FPD4. But, for τmax, in the cancellous bone, a 19.42% higher stress was found in SC6 compared to SC4 and 27.21% in FPD6 compared to FPD4. Finally, when splinting was used, a general stress reduction was found, about 50% in both diameters in the implant and abutment. According to the limitations of this in vitro study, it is possible to conclude that both groups (SC4 and SC6) showed high reliability in clinically relevant loads for the posterior atrophic mandible, SC6 having the lowest probability of failure at 300 N, with failure restricted to the abutment. Meanwhile, FPD6 has better stress distribution.

This study assessed the color-matching capability of three single-shade composites that employ simulated resin 3D-printed cavities with different cavity depths using CIELAB and CIEDE2000 formulas. A cylindrical model with standardized cavities was generated. One hundred and fifty blank specimens were fabricated and divided into three groups (n = 50) and then into five subgroups. The five subgroups included four groups of specimens with 0.5, 1, 2, and 4 mm cavities and a control group of specimens without cavities (n = 10). Cavities were filled with Vittra Unique (VU), Omnichroma (OC), and OptiShade (OS). Color measurements were done using a clinical spectrophotometer. The color differences for all composites were calculated as ΔE and ΔE 00 using CIELAB coordinates. The color parameter data were analyzed (α = 0.05). OS had significantly lower ∆E and ∆E 00 values than the other composites for all layer thicknesses (p < 0.05). VU, OC, and OS had the lowest ∆E and ∆E 00 values at 0.5 mm (p < 0.05). Color matching of monochromatic composites decreased as the layer thickness increased. OS achieved the best color matching in this study. Single-shade composites are important for reducing chairside time and gaining confidence in clinical practice. CIELAB and CIEDE2000 color difference formulae can be used in different studies with similar results.

The objective of this study was to identify, describe and synthesize the data published about the effectiveness of antimicrobial photodynamic therapy (aPDT) in the pulpectomy of primary teeth. A search was conducted in six electronic databases and the gray literature in June and July 2023, without restrictions on language or date of publication. The search strategy included indexed terms (MeSH terms) and your synonyms. Clinical trials, in vitro studies, case reports and retrospective studies that used photodynamic therapy in primary teeth pulpectomies were considered eligible. Among the 1,674 articles retrieved, 15 were included, published between 2014 and 2022, comprising six in vitro studies, five clinical trials, and four case reports. The sample consisted of children aged 2 to 8 years of both sexes, and included 1 to 62 teeth, mostly anterior. In two in vitro studies, the sample was taken from root canals. Most studies used a diode laser, methylene blue, and optical fiber. The pre-irradiation time ranged from 1 to 5 min. All protocols demonstrated microbial reduction before and after using aPDT, with no statistical difference among the groups. Furthermore, six studies demonstrated treatment success. Despite the divergence in methodology and protocols, aPDT is an effective method for reducing microorganisms, and is a promising adjunct treatment in primary teeth pulpectomies.

Introduction Our study aimed to evaluate temporomandibular joint involvement in rheumatoid arthritis (RA) patients and healthy individuals Methods 142 participants were recruited in two groups: 72 patients with RA and 70 healthy controls. All participants were tested for seropositivity of rheumatoid factor and anticitrullinated protein antibodies. TMD diagnosis was determined according to the standardized and validated diagnostic criteria for TMD (DC/TMD): myalgia, arthralgia, articular disc, displacement, degenerative joint disease, and headache attributed to TMD. Bruxism, a probable sleep and/or awake bruxism diagnosis was determined based on self-report and several clinical findings. Results The prevalence of TMD was 44.44% in RA patients and 34.28% in the control group ( P < 0.005). TMD-pain diagnosis presented either as myalgia, arthralgia, or both and for those who are having a degenerative joint disease. Within the RA group, seronegative patients had a TMD-pain diagnosis significantly more often than seropositive patients ( P = 0.048).75% of participants used analgesics, especially paracetamol, during the last 24 h, without differences between participants with TMD-pain diagnosis or without ( P = 0.759). No difference was found between the groups in maximum mouth opening, protrusion, and laterotrusion. There was reported no difference in probable sleep bruxism diagnosis between participants with TMD diagnosis and those without ( P = 0.223). Conclusion The prevalence of TMD pain is increased in seronegative RA patients and is associated with bruxism signs and symptoms. Health professionals should be alert to TMD pain in RA patients.

A floristic inventory was prepared for the Dois Irmãos State Park (PEDI, Recife, PE, Brazil), one of the most significant Atlantic Forest remnants (1,158 hectares) and an essential urban protected area in the Brazilian Northeast. The inventory included monthly field collections (2014-2015, 2017-2018) in a PPBio Program RAPELD module, searches in the INCT - Virtual Herbarium and literature, followed by a careful taxonomic review, including avascular and vascular plants. Species were assigned to a category for their habitats, habits, life forms, origin, extinction risk status, and substrate type. Overall, 992 species were registered (515 genera, 140 families). The Angiosperms comprised 887 species (110 families), of which 65% were woody species: 370 (41.7%) trees, six palm trees (0.7%), 146 (16.5%) shrubs, 56 (6.3%) climbers; and 309 (35%) were herbaceous plants. The most important angiosperm families were Fabaceae (90 species), Poaceae (54 spp.), Rubiaceae (47 spp.), Myrtaceae (35 spp.), Cyperaceae and Melastomataceae (32 spp. each). Forty-four species of ferns and lycophytes (15 families) were recorded; Pteridaceae (12 spp.), Thelypteridaceae (6 spp.), and Polypodiaceae (5 spp.) were the richest. We registered 61 species (14 families) of avascular plants, of which Lejeuneaceae (23 spp.), Calymperaceae (9 spp.) and Sematophyllaceae (7 spp.) exhibited the highest richness. We found 13 threatened species, such as Canistrum aurantiacum (Bromeliaceae) and Ocotea odorifera (Lauraceae). Our results confirm that the PEDI holds a high floristic richness in comparison to other checklists from this Atlantic Forest region. This highlights the importance of the Dois Irmãos State Park as a unique and valuable natural resource, and the need for more conservation efforts to protect this area.

Resumo: O objetivo deste estudo foi caracterizar a qualidade da atenção básica com base nas respostas de profissionais e usuários, focando no tipo de médico - inserido ou não no Programa Mais Médicos (PMM). Realizou-se um estudo transversal aplicando o Questionário de Fortalecimento da Atenção Básica a 149 médicos e 795 usuários em unidades básicas de saúde de Pernambuco, Brasil, de fevereiro a novembro de 2018. Neste estudo, foi utilizado o conceito de provimento do PMM no qual foi previsto a destinação do profissional médico para área de vulnerabilidade social. Os médicos foram divididos em três subgrupos: brasileiros não PMM, brasileiros PMM e cubanos PMM. Foram gerados escores médios a partir da perspectiva dos profissionais e dos usuários por meio de análise bivariada e multivariada dos subgrupos dos médicos com variáveis sociodemográficas, educacionais e atributos da atenção primária, considerando-se o nível de significância de 5%. Médicos cubanos do PMM apresentaram os maiores escores médios, especialmente no atributo orientação familiar e comunitária (7,19), seguido pelo subgrupo dos brasileiros do programa (4,74). A análise multivariada mostrou significância para médicos cubanos, sexo feminino e profissionais com residência médica. Entre os usuários, observou-se maior associação com a qualidade da atenção básica no subgrupo dos médicos cubanos, com exceção da longitudinalidade. Os resultados indicam a efetividade dos médicos cubanos do PMM na atenção básica, ressaltando a necessidade de focar na centralidade do usuário. Os achados reforçam a importância de utilizar instrumentos de avaliação precisos e abrangentes na gestão da saúde pública.

Knowledge about the transition process from primary teeth to permanent teeth is crucial. Parents are expected to know when deciduous teeth will erupt, will fall out, and when permanent teeth will grow to replace primary teeth. In this way, permanent teeth will grow in the right place, thereby preventing crowding of teeth, which will become difficult to clean, causing cavities and gum damage. This community service activity aimed to increase knowledge by providing education and skills in detecting the process of changing primary to permanent teeth. The method used was promotive and preventive efforts through outreach to the community. Forty- two teenagers and young parents in Botokan Hamlet, attended educational activities using PowerPoint presentations accompanied by interesting pictures and videos. Before and after activity, participants worked on ten pre and post-test questions. To make it easier for the public to remember the material presented, leaflets and pocketbooks were distributed regarding the process of changing primary teeth to permanent teeth. The t-test results revealed significant differences, which means that this activity effectively increased knowledge and skills. Parents’ knowledge and their ability to monitor the teeth transition process will provide enormous benefits for their children’s dental health, thereby preventing unexpected tooth decay.

According to the 2018 basic health study, the incidence of dental and oral problems in Indonesia remains high at 65.59%, with 72.09% among those aged 35 to 44. Oral and dental problems are typically handled with doctor-prescribed medicine or on their own, whereas fillings, tartar cleaning, and tooth extraction remain uncommon. The study aims to better understand Indonesian dental problems in Germany. Method. Muslims got dental and oral health education, followed by Googleform surveys and descriptive data analysis. The questionnaire started with a Cronbach alpha 0,817 validity and reability test. Result.According to the report, 69% of Indonesians in Germany aged 21 to 30 had a high degree of education. In terms of lifestyle, 89% consume sweetened beverages 1-2 times per week, while 91% and 86% rarely drink or smoke. Most German Muslims brush their teeth twice a day (73%), and 52% go to the dentist for dental and coral clearing. 84.4% of cases were related to teeth and gums, namely bleeding. Conclusion.The majority of people complained about dental and oral problems, which raised awareness about the importance of regular dental care and examination.

The dental community widely recognizes that the buildup of dental plaque on teeth can lead to gingivitis, which may advance to chronic periodontitis in some instances. It is imperative to address plaque accumulation early through early detection and prevention of dental and oral issues. Regrettably, routine dental check-ups and good dental hygiene are frequently neglected by the general populace. The main purpose of the examination is to increase public awareness of the importance of dental health, provide the knowledge and skills necessary to maintain dental health, and facilitate access to high-quality dental care. Dental and oral hygiene examination was conducted on 18 people using the OHI-S (Oral Hygiene Index-Simplified) method, which revealed that a large number of them had OHI-S scores in the moderate range, indicating the need for the community to prioritize the promotion, prevention, and rehabilitation of dental health. The follow-up actions taken were to provide dental health education and referrals for dental care.

The purpose of this study was to provide an evaluation of two different xenogeneic bone substitutes in bone healing of critical-sized bone defects (Ø =5mm) created in rats calvaria. Thirty animals were randomized into 3 groups with one of the following treatments. In the control group (n=10), the defects were filled with blood clots; BO group (n=10), the defects were filled with bovine medullary bone substitute (Bio-Oss®); BF group (n=10), the defects were filled with bovine cortical bone substitute (Bonefill®). All defects were covered with an absorbable membrane. Five animals from each group were euthanized at 30 and 45 days, subsequently histomorphometrical and immunohistochemical analyses were performed. The histomorphometry was used to measure the percentage of new bone formation in the total area of the defect while the immunohistochemistry evaluated the expression of bone immunomarkers for bone morphogenetic protein 2/4 (BMP2/4), osteocalcin (OCN) and tartrate-resistant acid phosphatase (TRAP). Data was statistically analyzed with a 5% significance level. The results demonstrated that the BO group showed greater bone formation compared to the BF group at 30 days (P<0.05). However, there was no statistically significant difference between the control and BO groups at 30 days (P>0.05). The expression of BMP2/4 and OCN were higher in the BO group at 45 days compared to the BF at 30 and 45 days respectively (P<0.05). In conclusion, even with the higher expression of proteins related to bone formation, there was no difference in new bone formation at 45 days when both anorganic bovine xenogenous grafts were evaluated.

Objectives: To evaluate the influence of preflaring using LA Axxess and ProTaper Shaping files on the accuracy of Root ZX mini, Mini Apex Locator, and Propex II electronic apex locators (EALs). Methods: Thirty mandibular incisors were accessed, and their root canal length (RCL) was determined with the aid of a stereomicroscope. Then, the specimens were randomly assigned into two groups according to the preflaring instrument: G1- LA Axxess; G2- ProTaper Shaping files. The root canal length was determined in the alginate model by EALs before and after preflaring. Data were classified as accurate (≤ 0.5 mm) or inaccurate (> 0.5 mm or beyond the root canal length). McNemar's test was used to detect differences in the EALs’ accuracy before and after preflaring, and Cochran’s Q test was applied to detect diferences in accuracy between the EALs. Results: McNemar's test identified differences in precision in the Propex II and Mini Apex Locator, with significantly increased accuracy after preflaring with ProTaper files. Cochrans’ Q test showed no differences between EALs’ accuracy (p>.05). Conclusions: Preflaring procedures increased accurate measurements for all the EALs, with statistical differences for Propex II and Mini Apex Locator when ProTaper instruments were used. All EALs showed similar accuracy.

Aim This study evaluates long-term shear bond strength (SBS) and enamel micro cracks (MCs) healing after using adhesive pre-coated brackets (APC). Materials and methods A total of eighty extracted human premolar teeth were randomly divided into four experimental groups (n = 20 per group): Control group: Teeth underwent indentation but no bracket bonding; group II : Teeth were subjected to indentation without exposure to thermocycling; group III: Teeth experienced both indentation and thermocycling; group IV: No indentation was applied to the teeth; groups III and IV were further divided into two subgroups to simulate different clinical timelines: Subgroup A (n = 10) Teeth underwent 5,000 thermocycles, equivalent to six months of clinical use. Subgroup B (n = 10) Teeth were subjected to 10,000 thermocycles, representing 12 months of use. All precoated brackets underwent debonding with a universal testing machine to assess the SBS, and the adhesive remnant index (ARI) was scored to evaluate the amount of adhesive left on the tooth surface. The study also examined horizontal and vertical enamel cracks, both pre- and post-intervention, across all groups. Crack healing was quantitatively assessed using computer-assisted digital image analysis to ensure precision. For statistical evaluation, ANOVA, Kruskal–Wallis H-test, and Tukey’s post-hoc tests were applied to assess differences among the groups. Results The Kruskal–Wallis H-test demonstrated no significant ARI difference between the groups (p = 0.790). A one-way ANOVA showed a significant difference among all groups (p < 0.001), with lower values observed in the group with indentation without thermocycling compared to all other groups and the groups with 5,000 thermocycles compared to the groups with, 10,000 thermocycles. Crack healing was observed in the control and second groups, and cracks were directly proportional to the number of thermocycles and SBS values. Conclusion The study showed that APC FF’s SBS increased, and thermal aging did not change the failure pattern. Thermocyclers and SBS affected enamel cracks. Clinical significance The bond strength of pre-coated brackets and microcrack healing gradually increased with time, while the pattern of bond failure did not change. How to cite this article Shamsan H, Albelasy NF, Farahat DS, et al. The Effect of Thermocycling on the Shear Bond Strength of Flash-free Brackets and Healing Dynamics of Enamel Microcracks: An In vitro Study. J Contemp Dent Pract 2024;25(9):836–845.

This article analyzes the quality dimension of methodological clarity of the National Registry of Health Establishments (CNES), considering the approach to forms of contracting in the system. This is a documentary research with a qualitative approach, which analyzed the CNES and its documents. Documents that included the following were selected: table of professional relationships and/or forms of hiring. Based on the concept adopted for the dimension of methodological clarity quality, the categories accessibility, content, variables, language, and usability were outlined. In the period from 2005 to 2020, 17 documents were published. Of those, three documents stood out: The version’s Readme, the Domain Table, and the CNES Filling Manual. The CNES website underwent restructuring and not all features were completed. The current website has a more modern and easy-to-understand interface. The change from the administrative sphere variable to the legal nature, in 2015, may make historical series analysis difficult. It is evident that the CNES pays more attention to methodological clarity, considering the approach to the ways of hiring health professionals, included in the system. KEYWORDS Health Information Systems; Data analysis; Health personnel; Censuses

This article analyzes the quality dimension of methodological clarity of the National Registry of Health Establishments (CNES), considering the approach to forms of contracting in the system. This is a documentary research with a qualitative approach, which analyzed the CNES and its documents. Documents that included the following were selected: table of professional relationships and/or forms of hiring. Based on the concept adopted for the dimension of methodological clarity quality, the categories accessibility, content, variables, language, and usability were outlined. In the period from 2005 to 2020, 17 documents were published. Of those, three documents stood out: The version’s Readme, the Domain Table, and the CNES Filling Manual. The CNES website underwent restructuring and not all features were completed. The current website has a more modern and easy-to-understand interface. The change from the administrative sphere variable to the legal nature, in 2015, may make historical series analysis difficult. It is evident that the CNES pays more attention to methodological clarity, considering the approach to the ways of hiring health professionals, included in the system. KEYWORDS Health Information Systems; Data analysis; Health personnel; Censuses

Resumo Introdução: A preceptoria na atenção primária à saúde desempenha papel central na formação do residente, já que 70%-80% da carga horária dos programas de residência de medicina de família e comunidade (PRMFC) acontece na unidade de saúde da família. Como preceptor entende-se o professor que ensina na prática clínica. O cenário atual de expansão dos PRMFC, associado a poucos profissionais especializados em preceptoria, fez com que vários modelos fossem praticados. Uma revisão de literatura feita em estágio anterior a este trabalho, além das contribuições da Sociedade Brasileira de Medicina de Família e Comunidade, identificou quatro modelos de preceptoria em MFC: ombro a ombro, preceptor da equipe ao lado, preceptor de unidade e preceptor de campo. Objetivo: Este estudo teve como objetivos validar esses quatro modelos e identificar outros, determinar, sob a ótica da qualidade de formação dos residentes, a aceitabilidade e o grau de recomendação dos modelos, e reconhecer os pontos positivos e negativos. Método: Utilizou-se a técnica Delphi modificada por questionários on-line. O estudo começou com 24 participantes de todo o Brasil na primeira rodada e terminou com 18. Aplicaram-se a técnica de estatística descritiva e a análise de conteúdo. O estudo foi realizado entre fevereiro e abril de 2022. Resultado: Validaram-se os quatro modelos apresentados, e nenhum outro foi identificado. Os modelos ombro a ombro, preceptor da equipe ao lado e preceptor de unidade foram considerados aceitáveis; e o modelo preceptor de campo, inaceitável. Os modelos ombro a ombro e preceptor de unidade foram recomendados. Reconheceram-se 92 aspectos como pontos positivos e negativos, dos quais 81 atingiram consenso. Conclusão: Obteve-se a validação dos quatro tipos de modelos de preceptoria para PRMFC. Como os modelos ombro a ombro e preceptor de unidade foram elencados como aceitáveis e recomendáveis, é importante que sejam priorizados na implantação e manutenção dos PRMFC. Os modelos preceptor da equipe ao lado e preceptor de campo foram julgados como não recomendados e, portanto, devem ser evitados. O conhecimento das fortalezas e fraquezas de cada modelo prepara os PRMFC para as possíveis dificuldades e os auxilia na escolha do modelo adequado às diversas realidades existentes no país.