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au:Perez, Danyel Elias da Cruz

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Students’ perception to an interactive web-based response system in oral and maxillofacial pathology teaching
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SILVA, Luana Rafaela Garcez da

; BEZERRA, Hélen Kaline Farias

; LEONEL, Augusto César Leal da Silva

; CARVALHO, Elaine Judite de Amorim

; CASTRO, Jurema Freire Lisboa de

; SANTOS-SILVA, Alan Roger

; PEREZ, Danyel Elias da Cruz

Brazilian Oral Research

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2023, Volume 37 elocation e027

Abstract: En | Text: En | PDF: En

Abstract This study evaluated dental students’ perceptions and adherence to an interactive web-based response system in the teaching of Oral and Maxillofacial Pathology. Between 2018 and 2019, students from a single Brazilian dental school used the Poll Everywhere® app to answer questions on subjects taught during an Oral and Maxillofacial Pathology course. At the end of the academic semester, the students completed a questionnaire containing 10 questions regarding the app’s use. The study included 123 students. Regarding the devices used to answer the questions on the app, 117 (95.1%) students used a smartphone and 3 (2.4%) used a laptop. Almost all students (121; 98.4%) agreed that this interactive web-based response system provided the teacher with a better overview of students’ understanding and improved their self-assessment of the acquired knowledge of the subjects. Most students (118; 95.9%) preferred classes using this technology and 122 (99.2%) stated that using the app made them feel more engaged in classes. In addition, all students agreed that the app improved student–teacher interactions. Most students (119; 96.7%) considered the digital interactive method more attractive than the conventional teaching approach, and 99 (80.5%) did not have any negative comments regarding the app. In conclusion, the Poll Everywhere® app provides a more dynamic and attractive educational environment for Oral and Maxillofacial Pathology teaching.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0027

Contribution of public oral pathology services to the diagnosis of oral and oropharyngeal cancer in Brazil
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LOUREDO, Brendo Vinicius Rodrigues

; CURADO, Maria Paula

; PENAFORT, Paulo Victor Mendes

; DE ARRUDA, José Alcides Almeida

; ABREU, Lucas Guimarães

; MESQUITA, Ricardo Alves

; PINTO-JÚNIOR, Décio dos Santos

; ABRAHÃO, Aline Corrêa

; ANDRADE, Bruno Augusto Benevenuto de

; AGOSTINI, Michelle

; MORAES, Renata Mendonça

; ANBINDER, Ana Lia

; DOURADO, Pedro Henrique Silva

; SANTOS, Teresa Cristina Ribeiro Bartholomeu dos

; PIRES, Fábio Ramoa

; BORDIGNON, Natalia Cristina Trentin

; GONDAK, Rogério Oliveira

; DE OLIVEIRA, Marcia Gaiger

; CARRARD, Vinicius Coelho

; MARTINS, Manoela Domingues

; SOUSA-NETO, Sebastião Silvério

; ARANTES, Diego Antônio Costa

; MENDONÇA, Elismauro Francisco

; CIESLAK-SANCHES, Silvia Roberta

; ANTUNES, Daniella Moraes

; AMARAL-SILVA, Gleyson Kleber do

; MANIERI, Patricia Rubia

; RAMALHO, Luciana Maria Pedreira

; DOS SANTOS, Jean Nunes

; LEONEL, Augusto César Leal da Silva

; PEREZ, Danyel Elias da Cruz

; VERHEUL, Hannah Carmem Carlos Ribeiro Silva

; BARROSO, Keila Martha Amorim

; RODRIGUES, Flávia Luiza Santos

; GONZAGA, Amanda Katarinny Goes

; FERNANDES, Romana Renery

; DE SOUZA, Lélia Batista

; SOUZA, Lucas Lacerda de

; PONTES, Flávia Sirotheau Corrêa

; PONTES, Hélder Antônio Rebelo

; SILVA, Caroline Alfaia

; CÂMARA, Jeconias

; LIBÓRIO-KIMURA, Tatiana Nayara

; SANTOS-SILVA, Alan Roger

; LOPES, Márcio Ajudarte

; ALMEIDA, Oslei Paes de

; ROMAÑACH, Mário José

; VARGAS, Pablo Agustin

Brazilian Oral Research

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2023, Volume 37 elocation e126

Abstract: En | Text: En | PDF: En

Abstract This study aimed to evaluate the contribution of oral and maxillofacial pathology laboratories (OMPLs) in Brazilian public universities to the diagnosis of lip, oral cavity, and oropharyngeal squamous cell carcinoma (SCC). A cross-sectional study was performed using biopsy records from a consortium of sixteen public OMPLs from all regions of Brazil (North, Northeast, Central-West, Southeast, and South). Clinical and demographic data of patients diagnosed with lip, oral cavity, and oropharyngeal SCC between 2010 and 2019 were collected from the patients’ histopathological records. Of the 120,010 oral and maxillofacial biopsies (2010-2019), 6.9% (8,321 cases) were diagnosed as lip (0.8%, 951 cases), oral cavity (4.9%, 5,971 cases), and oropharyngeal (1.2%, 1,399 cases) SCCs. Most cases were from Brazil’s Southeast (64.5%), where six of the OMPLs analyzed are located. The predominant profile of patients with lip and oral cavity SCC was Caucasian men, with a mean age over 60 years, low schooling level, and a previous history of heavy tobacco consumption. In the oropharyngeal group, the majority were non-Caucasian men, with a mean age under 60 years, had a low education level, and were former/current tobacco and alcohol users. According to data from the Brazilian National Cancer Institute, approximately 9.9% of the total lip, oral cavity, and oropharyngeal SCCs reported over the last decade in Brazil may have been diagnosed at the OMPLs included in the current study. Therefore, this data confirms the contribution of public OMPLs with respect to the important diagnostic support they provide to the oral healthcare services extended by the Brazilian Public Health System.

https://doi.org/10.1590/1807-3107bor-2023.vol37.0126

Awareness of patients receiving bisphosphonates: a cross-sectional study
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LIMA-SOUZA, Reydson Alcides de

; LEONEL, Augusto César Leal da Silva

; DUARTE, Ângela Luzia Branco Pinto

; CASTRO, Jurema Freire Lisboa de

; CARVALHO, Elaine Judite de Amorim

; PEREZ, Danyel Elias da Cruz

Brazilian Oral Research

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2022, Volume 36 elocation e0126

Abstract: En | Text: En | PDF: En

Abstract The aim of this study was to evaluate the awareness of patients using bisphosphonates (BP) regarding their risks and benefits. Sixty-five patients using BP were included. Each participant completed a self-administered questionnaire consisting of 13 questions, including sociodemographic and general information on BP. Data were analyzed using descriptive statistics, and a binomial test was used to assess patient knowledge about BP, considering a 5% significance level. Fifty-nine (90.2%) patients were unaware or had never heard of BP drugs and only 3 (4.6%) knew their indications. Only 6 patients (9.2%) said they knew about the oral complications caused by BP. Sixty-three patients (96.9%) said they were not referred to the dentist before starting BP treatment. Patients using BP do not have satisfactory knowledge regarding the risks and benefits of BP. Physicians and dentists must be prepared to inform and counsel BP users about their adverse effects and possible risk factors. Our results emphasize the importance of public policies, whether individual or collective, to be taken to increase knowledge about BP to avoid medication-related osteonecrosis of the jaw.

https://doi.org/10.1590/1807-3107bor-2022.vol36.0126

Clinical and Research Activities of the Brazilian Productivity Fellows in Oral Medicine and Oral Pathology during the COVID-19 Era
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Martelli, Alison José

; Machado, Renato Assis

; Martelli, Daniella Reis Barbosa

; Cruz Perez, Danyel Elias da

; Pires, Fábio Ramôa

; Martelli Júnior, Hercílio

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2021, Volume 21 elocation e210018

Abstract: En | Text: En | PDF: En

ABSTRACT Objective To evaluate the effect of the COVID-19 impacts on the activities of researchers in the field of Oral Medicine (OM) and Oral Pathology (OP). To assess the research activities and training of human resources by Brazilian productivity fellows in research (BPFR) in OM and OP in the COVID-19 Era. Material and Methods Thirty-six BPFR in OM and OP areas, funded by National Council for Scientific and Technological Development (CNPq), received a virtual structured questionnaire by e-mail, on the Google Forms (Google®) platform, with questions regarding research activities and training of human resources (supervision of undergraduate and postgraduate students), during the COVID-19 pandemic. From the thirty-six BPFR in OM and OP, twenty-seven (75.0%) answered the questionnaire. Results Most of them were males (n=20; 74.1%) and were distributed in four Brazilian regions and ten states of the federation, including the Federal District. Twenty-four (88.9%) BPFR reported having suspended clinical activities, while sixteen (59.3%) answered that histopathology practices are suspended. Twenty-five (92.6%) BPFR mentioned difficulties in conducting research projects and 55.5% stated having no difficulties in the supervision of undergraduates, master’s and PhD students. Conclusion The current scenario may significantly impact the diagnosis of oral diseases in Brazil. Moreover, a decrease in the scientific production of BPFR in OM and OP in the coming years is also considered.

https://doi.org/10.1590/pboci.2021.160

Uncommon oral manifestations of dengue viral infection
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Fernandes, Carla Isabelly Rodrigues

; Perez, Luciano Elias da Cruz

; Perez, Danyel Elias da Cruz

Brazilian Journal of Otorhinolaryngology

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dec 2020, Volume 86 Suppl. 1 Pages s3 - s5

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1016/j.bjorl.2016.10.001 687 downloads

COVID-19 Pandemic: Oral Repercussions and its Possible Impact on Oral Health
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Maciel, Panmella Pereira

; Martelli Júnior, Hercílio

; Martelli, Daniella Reis Barbosa

; Machado, Renato Assis

; Andrade, Priscila Victor de

; Perez, Danyel Elias da Cruz

; Bonan, Paulo Rogério Ferreti

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2020, Volume 20 Suppl. 1 elocation e0138

Abstract: En | Text: En | PDF: En

Abstract Many viral infections cause oral manifestations, including disorders in odontogenesis, resulting in dental malformations. In this review, based on current knowledge, we will discuss the likely dental and oral consequences of COVID-19. In this article, we review currently available data associated with vertical transmission of COVID-19 and odontogenesis, oral manifestations, and the impact of COVID-19 pandemic on a diagnosis of oral diseases. Owing to the severity of the pandemic, the population's anxiety and fear of becoming infected with COVID-19 may underestimate the signs and symptoms of serious illnesses, besides discourage patients from seeking health, medical or dental services to determine the diagnosis of oral lesions. Thus, the COVID-19 pandemic could be an additional and aggravating factor for the delay of serious illness diagnosis, such as oral squamous cell carcinoma resulting in higher morbidity and worse prognosis. Several changes and oral lesions have been described as oral manifestations of COVID-19, such as dysgeusia, oral ulcers, petechiae, reddish macules, desquamative gingivitis, among others. Besides, it can cause major systemic changes and predispose opportunistic infections. As with other viral infections, oral manifestations, including dental anomalies, can occur as a direct result of SARS-CoV-2 infection. However, further studies are needed to guide and clarify possible oral changes.

https://doi.org/10.1590/pboci.2020.135 2837 downloads

I am having trouble keeping up with virtual teaching activities: Reflections in the COVID-19 era
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Machado, Renato Assis

; Bonan, Paulo Rogério Ferreti

; Perez, Danyel Elias da Cruz

; Martelli, Daniella Reis Barbosa

; Martelli-Júnior, Hercílio

Clinics

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2020, Volume 75 elocation e1945

Abstract: En | Text: En | PDF: En

https://doi.org/10.6061/clinics/2020/e1945 1528 downloads

COVID-19 pandemic and the impact on dental education: discussing current and future perspectives
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MACHADO, Renato Assis

; BONAN, Paulo Rogério Ferreti

; PEREZ, Danyel Elias da Cruz

; MARTELLI JÚNIOR, Hercílio

Brazilian Oral Research

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2020, Volume 34 elocation e083

Abstract: En | Text: En | PDF: En

Abstract Due to the COVID-19 pandemic crisis, many dental schools and instructors are rethinking the way they teach and interact with students. New perspectives regarding a change in face-to-face activities, social isolation and the reformulation of clinical activities result in a transition toward e-learning and e-teaching processes. In this review, we discuss some favorable aspects and difficulties associated with virtual teaching and learning, searching for available tools and techniques as well as new perspectives.

https://doi.org/10.1590/1807-3107bor-2020.vol34.0083 11912 downloads

Dental research and COVID-19: The beauty of science and its current and future challenges
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MARTELLI JÚNIOR, Hercílio

; MACHADO, Renato Assis

; SWERTS, Mário Sérgio Oliveira

; MARTELLI, Daniella Reis Barbosa

; PEREZ, Danyel Elias da Cruz

Brazilian Oral Research

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2020, Volume 34 elocation e088

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/1807-3107bor-2020.vol34.0088 450 downloads

10.

Glomus Tumor of the Oral Cavity: Report of a Rare Case and Literature Review
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Sánchez-Romero, Celeste

; Oliveira, Maria Eduarda Pérez de

; Castro, Jurema Freire Lisboa de

; Carvalho, Elaine Judite de Amorim

; Almeida, Oslei Paes de

; Perez, Danyel Elias da Cruz

Brazilian Dental Journal

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mar 2019, Volume 30 N. 2 Pages 185 - 190

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Tumor glômico é uma neoplasia benigna composta de uma proliferação perivascular de células glômicas que lembram o corpo glômico normal. Usualmente, ele se apresenta como um nódulo pequeno, solitário, sintomático e azul-avermelhado, localizado na derme profunda ou subcutânea de extremidades superiores ou inferiores de adultos jovens e de meia-idade. Casos afetando a cavidade oral são muito raros, com apenas 23 casos bem documentados relatados na literatura de língua Inglesa. A seguir, nós apresentamos um caso raro de tumor glômico do lábio superior, e revisão da literatura dos casos envolvendo a boca.

Abstract Glomus tumor is a benign neoplasm composed of a perivascular proliferation of glomic cells that resembles the normal glomus body. Usually, it appears as a solitary, symptomatic small blue-red nodule, located in the deep dermis or subcutis of upper or lower extremities of young to middle-aged adults. Cases affecting the oral cavity are very rare, with only 23 well-documented cases reported in the English-language literature. Herein, we present a rare case of glomus tumor of the upper lip, and review the literature of cases involving the mouth.

https://doi.org/10.1590/0103-6440201902222 1709 downloads

11.

Oral squamous cell carcinoma: a clinicopathological study on 194 cases in northeastern Brazil. A cross-sectional retrospective study
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Leite, Amanda Almeida

; Leonel, Augusto César Leal da Silva

; Castro, Jurema Freire Lisboa de

; Carvalho, Elaine Judite de Amorim

; Vargas, Pablo Agustin

; Kowalski, Luiz Paulo

; Perez, Danyel Elias da Cruz

Sao Paulo Medical Journal

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mar 2018, Volume 136 N. 2 Pages 165 - 169

Abstract: En | Text: En | PDF: En

ABSTRACT BACKGROUND: Only a few studies have evaluated the clinicopathological features of oral squamous cell carcinoma (SCC) in Brazil, and most were conducted in the most industrialized region of the country, i.e. the southeastern region. The aim of this study was to evaluate the clinicopathological features of this malignant neoplasm in northeastern Brazil. DESIGN AND SETTING: Retrospective study performed in an oral pathology laboratory in Recife, Brazil. METHODS: All cases of oral SCC that occurred between 2000 and 2015 were studied. Clinical data were recorded and histological slides were reviewed. Statistical analysis was performed using the chi-square test (P ≤ 0.05). RESULTS: A total of 194 cases were evaluated. The male-to-female ratio was 1.5:1. The mean age was 65.4 years, and only 6.6% of the cases occurred in patients younger than 41 years. Most tumors consisted of well-differentiated SCC (54.6%). CONCLUSIONS: The findings of this study highlight the higher prevalence of oral SCC among women and the increasing number of cases among young patients. Thus there is no specific risk group for oral SCC, as in the past. This fact needs to be taken into consideration in clinical routine care, so that apparently innocuous malignant lesions do not go unnoticed in these individuals.

https://doi.org/10.1590/1516-3180.2017.0293061217 1809 downloads

12.

Cemento-Osseous Dysplasias: Imaging Features Based on Cone Beam Computed Tomography Scans
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Cavalcanti, Paulo Henrique Pereira

; Nascimento, Eduarda Helena Leandro

; Pontual, Maria Luiza dos Anjos

; Pontual, Andréa dos Anjos

; Marcelos, Priscylla Gonçalves Correia Leite de

; Perez, Danyel Elias da Cruz

; Ramos-Perez, Flávia Maria de Moraes

Brazilian Dental Journal

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feb 2018, Volume 29 N. 1 Pages 99 - 104

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Os exames por imagem têm papel importante no diagnóstico da displasia cemento-óssea (DCO). A tomografia computadorizada por feixe cônico (TCFC) se destaca por permitir a avaliação tridimensional da imagem. O objetivo neste estudo foi avaliar a prevalência de casos diagnosticados como DCO nos exames de TCFC, bem como identificar as principais características de imagem relacionadas a essas lesões. Uma análise foi realizada em um banco de dados contendo 22.400 laudos radiológicos, no qual todos os casos que apresentavam algum tipo de DCO foram inicialmente selecionados. Estes exames foram reavaliados para confirmar o diagnóstico radiográfico e determinar a prevalência e distribuição dos tipos de DCO em relação ao sexo, idade e localização preferencial, além de descrever seus aspectos imaginológicos mais comuns. Os dados foram apresentados por meio de análise descritiva. Oitenta e dois casos foram diagnosticados como DCO nas imagens de TCFC (prevalência de 0,4%). A distribuição dos pacientes foi de 11 (13,4%) homens e 71 (86,6%) mulheres, com idade média de 49,8 anos (faixa etária de 17 a 85 anos). Houve 47 (57,3%) casos de DCO periapical, 23 (28%) de DCO focal e 12 (14,6%) de DCO florida. A mandíbula foi mais afetada que a maxila. Na maioria dos casos, as lesões foram mistas ou hiperdensas. Todas as DCO apresentaram limites bem definidos e não houve casos de deslocamento dentário. Em conclusão, a DCO periapical foi o tipo mais comum e o osso mais afetado foi a mandíbula. A avaliação da imagem é crítica para o seu diagnóstico e os dentistas devem ter em mente todas as possíveis apresentações radiográficas da DCO, a fim de prevenir diagnósticos enganosos e, conseqüentemente, tratamentos inadequados.

Abstract Imaging exams have important role in diagnosis of cemento-osseous dysplasia (COD). Cone beam computed tomography (CBCT) stands out for allowing three-dimensional image evaluation. This study aimed to assess the prevalence of cases diagnosed as COD on CBCT scans, as well identify the main imaging features related to these lesions. An analysis was performed in a database containing 22,400 radiological reports, in which all cases showing some type of COD were initially selected. These CBCT exams were reevaluated to confirm the radiographic diagnosis and determine the prevalence and distribution of the types of COD with regard to gender, age and preferred location, while describing its most common imaging aspects. Data were presented using descriptive analyses. There were 82 cases diagnosed as COD in the CBCT images (prevalence of 0.4%). The distribution of patients was 11 (13.4%) male and 71 (86.6%) female, with a mean age of 49.8 years (age-range 17-85 years). There were 47 (57.3%) cases of periapical COD, 23 (28%) of focal COD and 12 (14.6%) of florid COD. The mandible was more affected than the maxilla. In most cases, the lesions were mixed or hyperdense. All COD had well-defined limits and there were no cases of tooth displacement. In conclusion, periapical COD was the most common type and the most affected bone was the mandible. Imaging evaluation is critical for diagnosis and dentists should bear in mind all possible radiographic presentations of COD in order to prevent misleading diagnoses and consequently, inadequate treatments.

https://doi.org/10.1590/0103-6440201801621 4781 downloads

13.

Effects of Zoledronic Acid in Experimental Periapical Lesions in Rats: An Imaging and Histological Analysis
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França, Talita Ribeiro Tenório de

; Ramos-Perez, Flávia Maria de Moraes

; Pontual, Andrea dos Anjos

; Castro, Jurema Freire Lisboa de

; Bonan, Paulo Rogério Ferreti

; Perez, Danyel Elias da Cruz

Brazilian Dental Journal

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sep 2017, Volume 28 N. 5 Pages 566 - 572

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo O objetivo deste estudo foi avaliar as características histológicas e de imagem de lesões periapicais experimentais, incluindo o osso alveolar adjacente, em ratos sob tratamento com ácido zoledrônico. O estudo utilizou 40 ratos Wistar, machos, distribuídos em 8 grupos de animais cada: G1: indução de lesão periapical (LP) e administração intraperitoneal semanal (AIS) de solução salina (NaCl 0.9%) por 4 semanas; G2: indução de LP e AIS de ácido zoledrônico (0,15 mg/kg/week) por 4 semanas; G3: indução de LP e AIS de solução salina por 8 semanas; G4: indução de LP e AIS de ácido zoledrônico por 8 semanas; G5- AIS de solução salina por 4 semanas e subsequente indução de LP; G6- AIS de ácido zoledrônico por 4 semanas e subsequente indução de LP; G7: AIS de solução salina por 8 semanas e subsequente indução de LP; G8: AIS de ácido zoledrônico por 8 semanas e subsequente indução de LP. A administração de ácido zoledrônico ou solução salina continuou após indução de LP até a eutanásia. Após isso, tomografia computadorizada de feixe cônico e análise histológica foram realizadas. Análises estatísticas foram realizadas por ANOVA e teste de Kruskal-Wallis. Os grupos tratados com ácido zoledrônico mostraram LPs significativamente menores que os grupos tratados com NaCl 0.9% (p <0.05). LPs eram formadas por inflamação crônica variando de leve a moderada, sem diferença entre os grupos. Em todos os espécimes, necrose mandibular não foi observada. Em conclusão, a presença de LPs aparentemente não representa um fator de risco importante para o desenvolvimento de osteonecrose relacionada ao uso de bisfosfonatos.

Abstract The aim of this study was to assess the imaging and histological features of experimental periapical lesions, including the adjacent alveolar bone, in rats under zoledronic acid treatment. The study used 40 male Wistar rats distributed into 8 groups of 5 animals each: G1: induction of periapical lesion (PL) and weekly intraperitoneal administration (WIPA) of saline solution (0.9% NaCl) for 4 weeks; G2: PL induction and WIPA of zoledronic acid (0.15 mg/kg/week) for 4 weeks; G3: PL induction and WIPA of saline solution for 8 weeks; G4: PL induction and WIPA of zoledronic acid for 8 weeks; G5:WIPA of saline solution for 4 weeks and subsequent PL induction; G6: WIPA of zoledronic acid for 4 weeks and subsequent PL induction; G7: WIPA of saline solution for 8 weeks and subsequent PL induction; G8: WIPA of zoledronic acid for 8 weeks and subsequent PL induction. The administration of zoledronic acid or saline solution continued after PL induction until the euthanasia. Thus, cone beam computed tomography and histological analysis were performed. Statistical analyzes were performed by ANOVA and Kruskal-Wallis test. Groups treated with zoledronic acid showed significantly smaller size of PL than the groups treated with 0.9% NaCl (p<0.05). PLs were formed by chronic inflammation ranging from mild to moderate, with no difference between groups. In all specimens, no mandibular necrosis was observed. In conclusion, the presence of PLs apparently does not represent an important risk factor for the development of bisphosphonate-related osteonecrosis of the jaws.

https://doi.org/10.1590/0103-6440201601558 1400 downloads

14.

Fluoxetine effects on periodontogenesis: histomorphometrical and immunohistochemical analyses in rats
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REGUEIRA, Luciana Silva

; MARCELOS, Priscylla Gonçalves Correia Leite de

; SANTIAGO-JAEGGER, Isabela Maria

; PEREZ, Danyel Elias da Cruz

; EVÊNCIO NETO, Joaquim

; BARATELLA-EVÊNCIO, Liriane

Journal of Applied Oral Science

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apr 2017, Volume 25 N. 2 Pages 159 - 167

Abstract: En | Text: En | PDF: En

Abstract Reports have indicated that serotonin plays an important role in cell migration and differentiation during the organogenesis of several tissues, including the oral types. Administration of selective serotonin reuptake inhibitor (SSRI) drugs during pregnancy could affect the delivery of serotonin to embryonic tissues altering its development. Objective This study aimed to assess the effects of fluoxetine, a selective serotonin reuptake inhibitor, on the formation of the periodontal ligament during pregnancy and lactation in rat pups. Material and Methods Twelve pregnant rats of Wistar lineage were divided into four study groups. In the control group, 0.9% sodium chloride solution was administered orally, throughout the entire period of the 21 days of pregnancy (CG group) and in the CGL group, it was administrated during pregnancy and lactation (from day 1 of pregnancy to the 21st day after birth). Fluoxetine was administered orally at the dose of 20 mg/kg in a group treated during pregnancy only (FG group), and during pregnancy and lactation (FGL group). Histometrical, histochemical and immunohistochemical analysis of the maxillary first molar periodontium region of the 24 rat pups was made under light microscopy, and periodontal ligament collagen was qualitatively evaluated under a polarizing light microscope. Results The quantity of fibroblasts (p=0.006), osteoblasts (p=0.027) and cementoblasts (p=0.001) was reduced in pups from the rats that received fluoxetine during pregnancy and lactation. No alterations were seen in the collagen fibers. Conclusion These findings suggest that periodontal tissue may be sensitive to fluoxetine, and its interference in reducing periodontal cells depends on exposure time during lactation.

https://doi.org/10.1590/1678-77572015-0564 1228 downloads

15.

Giant lipoma on lower lip: an unusual case
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Pereira, Laudenice de Lucena

; Monteiro Dutra, Dasaiev

; Nicolau Ferreira, Victor Yuri

; Galdino Pires, Emanuene

; Cavalcanti Monteiro, Larissa

; da Cruz Perez, Danyel Elias

; Ferreti Bonan, Paulo Rogério

Revista Cubana de Estomatología

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dec 2016, Volume 53 N. 4 Pages 291 - 296

Abstract: En | Text: En | PDF: En

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