Aggressive unicystic ameloblastoma affecting the posterior mandible: late diagnosis during orthodontic treatment

Sérgio Lúcio Pereira de Castro Lopes,Isadora Luana Flores,Thiago de Oliveira Gamba,Rivea Ines Ferreira-Santos,Mari Eli Leonelli de Moraes,Aline Alvarez Cabello,Paula Nascimento Moutinho 대한구강악안면외과학회 2017 대한구강악안면외과학회지 Vol.43 No.2

Maxillofacial images must be examined to find pathologies not identified during clinical examination. Unicystic ameloblastoma (UA) extending to the mandibular body and ramus was neglected on initial panoramic radiographic examination. After orthodontic therapy, a huge lesion was observed clinically and through imaging exams. After the conservative surgery, no recurrence was observed during five years of follow-up. This case emphasized the need for careful evaluation of patient images focusing on the oral diagnosis before any dental treatment planning, including orthodontic therapy.

Role and effect of traditional markets: The internationally awarded case of Barcelos

Sérgio Dominique-Ferreira,José Braga Rui,Queirós Rodrigues Benilda 한국마케팅과학회 2022 마케팅과학연구 Vol.32 No.3

Social, economic, and environment sustainability are more than ever hot topics. Because of their importance in this context, we examine how and why traditional markets play such a critical role in local as well as regional development and sustainability, along with their respective effects. We use a single case methodology based on the internationally awarded case of Barcelos (a northern region of Portugal). The main results show that the traditional market of Barcelos plays a critical role in the region, especially with respect to socioeconomic, environmental, and political and administrative effects. To optimize the role and influence of this traditional market, authors suggest the application of artificial intelligence.

Personal marketing and the recruitment and selection process: Hiring attributes and particularities in tourism and hospitality

Sérgio Dominique-Ferreira,Queirós Rodrigues Benilda,José Braga Rui 한국마케팅과학회 2022 마케팅과학연구 Vol.32 No.3

The competitiveness of the labour market is a critical challenge for future professionals. This work intends to analyse the importance of personal marketing in the professionalization of human resources, as well as the most valued skills in the labour market. For this purpose, sample was composed of recent graduates in tourism/hospitality and other areas (for comparison). The main results show that using personal marketing techniques in job search, develop a personal brand and digital social strategically are perceived as key in the tourism industry. This work enables academic institutions to better adjust tourism degree programmes, as well as a more efficient programme assessment and evaluation. It also provides employees valuable information to be more competitive in the labour market.

Lateral pterygoid muscle volume and migraine in patients with temporomandibular disorders

Sérgio Lúcio Pereira de Castro Lopes,André Luiz Ferreira Costa,Thiago de Oliveira Gamba,Isadora Luana Flores,Adriana Dibo Cruz,Li Li Min 대한영상치의학회 2015 Imaging Science in Dentistry Vol.45 No.1

Purpose: Lateral pterygoid muscle (LPM) plays an important role in jaw movement and has been implicated in Temporomandibular disorders (TMDs). Migraine has been described as a common symptom in patients with TMDs and may be related to muscle hyperactivity. This study aimed to compare LPM volume in individuals with and without migraine, using segmentation of the LPM in magnetic resonance (MR) imaging of the TMJ. Materials and Methods: Twenty patients with migraine and 20 volunteers without migraine underwent a clinical examination of the TMJ, according to the Research Diagnostic Criteria for TMDs. MR imaging was performed and the LPM was segmented using the ITK-SNAP 1.4.1 software, which calculates the volume of each segmented structure in voxels per cubic millimeter. The chi-squared test and the Fisher’s exact test were used to relate the TMD variables obtained from the MR images and clinical examinations to the presence of migraine. Logistic binary regression was used to determine the importance of each factor for predicting the presence of a migraine headache. Results: Patients with TMDs and migraine tended to have hypertrophy of the LPM (58.7%). In addition, abnormal mandibular movements (61.2%) and disc displacement (70.0%) were found to be the most common signs in patients with TMDs and migraine. Conclusion: In patients with TMDs and simultaneous migraine, the LPM tends to be hypertrophic. LPM segmentation on MR imaging may be an alternative method to study this muscle in such patients because the hypertrophic LPM is not always palpable.

Postoperative pain after endodontic treatment of necrotic teeth with large intentional foraminal enlargement

Machado Ricardo,Comparin Daniel,Ignácio Sérgio Aparecido,Silva Neto Ulisses Xavier da 대한치과보존학회 2021 Restorative Dentistry & Endodontics Vol.46 No.3

Objectives To evaluate postoperative pain after endodontic treatment of necrotic teeth using large intentional foraminal enlargement (LIFE). Materials and Methods The sample included 60 asymptomatic necrotic teeth (with or without chronic apical periodontitis), and a periodontal probing depth of 3 mm, previously accessed and referred to perform endodontic treatment. After previous procedures, the position and approximate size of the apical foramen (AF) were determined by using an apex locator and K flexo-files, respectively. The chemomechanical preparation was performed with Profile 04 files 2 mm beyond the AF to achieve the LIFE, using 2.5 mL of 2.5% NaOCl at each file change. The filling was performed by Tagger's hybrid technique and EndoFill sealer. Phone calls were made to all the patients at 24, 48 and 72 hours after treatment, to classify postoperative pain. Statistical analysis was performed by different tests with a significance level of 5%. Results Age, gender, periradicular status and tooth type did not influence postoperative pain (p > 0.05). Only 1 patient (1.66%) reported severe pain after 72 hours. Moderate pain was reported by 7, 4 and 3 patients after 24, 48 and 72 hours, respectively (p = 0.0001). However, paired analyses showed a statistically significant difference only between 24 and 72 hours (p = 0.04). Sealer extrusion did not influence the postoperative pain (p > 0.05). Conclusions Acute or moderate postoperative pain was uncommon after endodontic treatment of necrotic teeth with LIFE. Objectives To evaluate postoperative pain after endodontic treatment of necrotic teeth using large intentional foraminal enlargement (LIFE). Materials and Methods The sample included 60 asymptomatic necrotic teeth (with or without chronic apical periodontitis), and a periodontal probing depth of 3 mm, previously accessed and referred to perform endodontic treatment. After previous procedures, the position and approximate size of the apical foramen (AF) were determined by using an apex locator and K flexo-files, respectively. The chemomechanical preparation was performed with Profile 04 files 2 mm beyond the AF to achieve the LIFE, using 2.5 mL of 2.5% NaOCl at each file change. The filling was performed by Tagger's hybrid technique and EndoFill sealer. Phone calls were made to all the patients at 24, 48 and 72 hours after treatment, to classify postoperative pain. Statistical analysis was performed by different tests with a significance level of 5%. Results Age, gender, periradicular status and tooth type did not influence postoperative pain (p > 0.05). Only 1 patient (1.66%) reported severe pain after 72 hours. Moderate pain was reported by 7, 4 and 3 patients after 24, 48 and 72 hours, respectively (p = 0.0001). However, paired analyses showed a statistically significant difference only between 24 and 72 hours (p = 0.04). Sealer extrusion did not influence the postoperative pain (p > 0.05). Conclusions Acute or moderate postoperative pain was uncommon after endodontic treatment of necrotic teeth with LIFE.

Mechanical Properties of Alumina Nanofilled Polymeric Composites Cured with DDSA and MNA

Ana M. Amaro,Deesy G. Pinto,Luís Bernardo,Sérgio Lopes,João Rodrigues,Cristina S. Louro 한국섬유공학회 2018 Fibers and polymers Vol.19 No.2

Reinforced concrete is widely used in structures. New materials to replace both the steel and the concrete have been studied in many research centres. One of the possibilities for the reinforcement is the partial or total replacement of the steel bars by new composite materials. Nano composites are very promising, and an investigation line was developed to this end by an interdisciplinary team. On this work, the mechanical properties of epoxy resin nanocomposites (EPNCs) filled with α-Al2O3 nanoparticles (NPs) with irregular shape and approximately 100 nm maximum diameter size was investigated. The variable study was the alumina NPs contents: 1, 3 and 5 wt.%. The NPs were previously pretreated with a silane agent (APTES). Two hardeners, 3-dodec-2-enyloxolane-2,5-dione (DDSA) and 8-methyl-3a,4,7,7a-tetrahydro-4,7-methano-2- benzofuran-1,3-dione (MNA), frequently used in epoxy resin embedding tissues, were used simultaneously for this study. Unlike other hardeners, DDSA does not need curing treatment, constituting a novel application and a saving time-energy during the manufacturing process. Considering the mechanical behaviour, it was observed that the EPNCs filled with 5 wt.% of alumina NPs showed the maximum improvement in flexural modulus, around 14 % when compared to the pristine EP sample. No relevant effect was observed on the flexural strength by adding alumina NPs. Additionally, the maximum increase observed for hardness, and Young’s modulus were about 13 % and 28 %, respectively (the maximum increase was observed at 3 wt.%).

Effect of ripening time on bacteriological and physicochemical goat milk cheese characteristics

Rodrigo V. Moreira,Marion P. Costa,Beatriz S. Frasao,Vivian S. Sobral,Claudius C. Cabral,Bruna L. Rodrigues,Se´rgio B. Mano,Carlos A. Conte-Junior 한국식품과학회 2020 Food Science and Biotechnology Vol.29 No.4

Cheese ripening involves lactose metabolism, lipolysis and proteolysis, which are affected by many factors. The aim of this study was to assess changes due to ripening (90 days) of goat milk cheese through bacteriological and physicochemical analysis in order to verify if, at the end of ripening period, this cheese could be considered ‘‘lactose-free’’. Three batches of the goat milk cheese were manufactured and ripened at 10 C and 80% relative humidity for 90 days. Titratable acidity increased by about 59 D due to carbohydrate degradation and organic acid production. However, pH (5.31–5.25) remained constant. Lactococcus was the dominant cheese microbiota, acting in the fermentation of lactose (1.17–0.06 mg/g) and lactic acid production (5.49– s10.01 mg/g). Thus, ripening time was decisive for bacteriological and physicochemical goat milk cheese characteristics.

Cryotherapy versus radiofrequency ablation in the treatment of dysplastic Barrett’s esophagus with or without early esophageal neoplasia: a systematic review and meta-analysis

Igor Logetto Caetité Gomes,Diogo Turiani Hourneaux de Moura,Igor Braga Ribeiro,Sérgio Barbosa Marques,Alexandre de Sousa Carlos,Beanie Conceição Medeiros Nunes,Bruno Salomão Hirsch,Guilherme Henrique 대한소화기내시경학회 2024 Clinical Endoscopy Vol.57 No.2

Background/Aims: Radiofrequency ablation (RFA) is the first-line therapy for dysplastic Barrett’s esophagus (BE). Therefore, cryotherapy has emerged as an alternative treatment option. This study aimed to compare the efficacies of these two techniques based on the rates of complete eradication of intestinal metaplasia (CE-IM) and dysplasia (CE-D). Adverse events and recurrence have also been reported. Methods: An electronic search was conducted using the Medline (PubMed), Embase, LILACS, and Google Scholar databases until December 2022. Studies were included comparing cryotherapy and RFA for treating dysplastic BE with or without early esophageal neoplasia. This study was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Results: Three retrospective cohort studies involving 627 patients were included. Of these, 399 patients underwent RFA, and 228 were treated with cryotherapy. There was no difference in CE-IM (risk difference [RD], –0.03; 95% confidence interval [CI], –0.25 to 0.19; p=0.78; I2=86%) as well as in CE-D (RD, –0.03; 95% CI, –0.15 to 0.09; p=0.64; I2=70%) between the groups. The absolute number of adverse events was low, and there was no difference in the recurrence rate. Conclusions: Cryotherapy and RFA were equally effective in treating dysplastic BE, with or without early esophageal neoplasia.

GLUT2 proteins and PPARγ transcripts levels are increased in liver of ovariectomized rats: reversal effects of resistance training

Luciane M. Tomaz,Jean-Marc Lavoie,Marina R. Barbosa,Zahra Farahnak,Cristiani G. Lagoeiro,Natalia S.S Magosso,Sérgio E. A. Perez 한국운동영양학회 2016 Physical Activity and Nutrition (Phys Act Nutr) Vol.20 No.2

Purpose: This study investigated the effects of ovariectomy (Ovx) and 12 weeks of resistance training (RT) on gene expression of GLUT2, the main glucose transporter in the liver, and on PPARγ, a transcription factor known to target GLUT2 expression. Methods: Forty Holtzman rats were divided into 5 groups: Sham-sedentary (Sed), Sham-RT, Ovx-Sed, Ovx-RT, and Ovx-Sed with hormone replacement (E2). The RT protocol consisted of sessions held every 72 h for 12 weeks, during which the animals performed 4 to 9 vertical climbs (1.1 m) at 2 min intervals with progressively heavier weights (30 g after the fourth climb) tied to the tail. The E2 silastic capsule was inserted into the rats’ backs 48 hours before the first RT session. Results: In addition to liver fat, GLUT2 protein levels and PPARγ transcripts were increased (P < 0.05) in Ovx compared to Sham-Sed animals, suggesting increased hepatic glucose uptake under estrogen deficient conditions. RT and E2 in Ovx rats decreased liver fat accumulation as well as GLUT2 and PPARγ gene expression to the level of Sham-Sed animals. Conclusion: The results of this study suggest that liver GLUT2 as well as PPARγ expression in Ovx rats are accompanied by increased fat accumulation and glucose uptake, thus providing a substrate for increased de novo lipogenesis. RT appears to be an appropriate exercise model to circumvent these effects.

Bridging tourism, architecture, and sustainability: Design and development of an app for contemporary architecture built in Portugal

Nuno Martins,Sérgio Dominique-Ferreira,Carla Pinheiro 한국마케팅과학회 2022 마케팅과학연구 Vol.32 No.3

Contemporary architecture has an increasing importance in tourism. The marketing implications of digital or mobile content in this niche tourism space has not been previously studied. With this project we aim to build a mobile app to cater to this market and show that it can positively impact tourism in Portugal. A two-step multidimensional approach was applied to achieve this goal. The first step was based on benchmarking, as well as interviews with two architects. The second step was based on visual identity factors, prototyping, and usability tests. We found that it was possible to develop an intuitive app that positively adjusted to the needs and preferences of future users. Improvements to the platform should include new metrics, blog links, and augmented reality.