Liane Maciel de Almeida Souza

Inverted papilloma (Schneiderian papilloma) with involvement of the oral cavity: report of an unusual case

Inverted Schneiderian papilloma (ISP) is a neoplasm of epithelial lining origin which arises in the respiratory mucosa that lines the nasal cavity and paranasal sinuses. The inverted Schneiderian papilloma frequently appears as a unilateral lesion in the nasal septum and extends secondarily to the nasal and paranasal sinuses. This paper reports an unusual case of this pathology with involvement of the oral cavity in a 61-year-old white man. Clinical evaluation revealed a vegetating mass in the alveolar ridge of the right maxilla that had been present for approximately 4 months. After radiographic evaluation, involvement of the maxillary sinus was detected. Microscopic evaluation, in situ hybridization and immunohistochemical analysis of the specimen led to a diagnosis of ISP moderate dysplasia associated with HPV infection.

Comparação da intensidade de dor em bloqueios do nervo alveolar inferior

JUSTIFICATIVA E OBJETIVOS: Este estudo foi idealizado para investigar o desconforto dos procedimentos odontologicos associados a anestesia. Este procedimento frequentemente gera uma grande ansiedade, o que aumenta a dor. O medo da injecao tem sido relatado como sendo um fator determinante a nao procura do tratamento dental. O presente estudo teve como objetivo comparar o nivel de dor na perfuracao, penetracao e deposicao da solucao anestesica no bloqueio do nervo alveolar inferior nas Tecnicas Direta e Vazirani-Akinosi. METODOS: Estudo clinico randomizado, cruzado e duplamente encoberto envolvendo 30 pacientes atendidos no Departamento de Odontologia da Universidade Federal de Sergipe (DOD-UFS) que necessitaram de tratamento odontologico e que se submeteram a bloqueio bilateral do nervo alveolar inferior. Estes foram interrogados a respeito da intensidade de dor durante as seguintes etapas: perfuracao, penetracao e deposicao do anestesico local. A mensuracao da intensidade dolorosa foi realizada atraves da escala analogica visual (EAV) com comprimento de 10 cm, sem a existencia de marcacoes pre-definidas. Os dados obtidos foram tabulados e submetidos aos testes estatisticos de Friedman e Wilcoxon com indice de significância estatistica de 5%. RESULTADOS: A analise dos dados revelou que nao houve diferencas estatisticamente significantes (Wilcoxon, p > 0,05) entre os valores de EAV das duas tecnicas anestesicas em nenhum dos momentos operatorios. Para ambas as tecnicas, a dor induzida pela penetracao foi maior (Friedman, p < 0,05) do que a dor induzida nos dois outros momentos operatorios, sendo a maioria absoluta, nas duas tecnicas, classificadas como dor leve. CONCLUSAO: As tecnicas de Vazirani-Akinosi e Direta apresentaram niveis de sensibilidade algica caracterizada como leve nos tres estagios da anestesia, sendo o segundo estagio, a penetracao, o mais doloroso se comparado com os demais.

Comparison of Articaine and Lidocaine for Buccal Infiltration After Inferior Alveolar Nerve Block For Intraoperative Pain Control During Impacted Mandibular Third Molar Surgery

&NA; In order to compare the efficacy of lidocaine and articaine for pain control during third molar surgery, 160 patients presenting bilateral asymptomatic impacted mandibular third molars were selected. They received 1.8 mL of 2% lidocaine with epinephrine 1:100,000 during inferior alveolar nerve block. In group 1 (n = 80), an infiltrative injection of 0.9 mL of 2% lidocaine with epinephrine 1:100,000 was performed in buccal‐distal mucosa of the third molar. Group 2 (n = 80) received 0.9 mL of 4% articaine with epinephrine 1:100,000 in the contralateral side. All procedures were performed at the same visit, by a single operator, in a double‐blind and parallel design. The duration of each surgery and the moment when the patient expressed pain were noted. Data were analyzed by nonpaired t test and chi‐square test (alpha = 5%). Duration of surgery did not differ (p = .83) between Groups 1 (19.8 ± 2.3 minutes) and 2 (19.7 ± 3.0 minutes). Pain was expressed more in group 1 (26.3%) than in group 2 (10%) (odds ratio = 3.2, p = .0138). In both groups, tooth sectioning was the most painful event (p < .0001). No influence of gender (p = .85) or age (p = .96) was observed in pain response. Buccal infiltration of 4% articaine with epinephrine 1:100,000 showed more efficacy than 2% lidocaine with epinephrine 1:100,000 when used in combination with inferior alveolar nerve block in controlling intraoperative pain related to impacted mandibular third molar surgery.

Levobupivacaine induces vasodilatation, but not vasoconstriction, in rat mesenteric artery

Introduction Levobupivacaine (LEVO) can replace analgesia because it exhibits low toxicity and causes minor vasoconstriction, enabling its use in patients in whom vasoconstrictors are contraindicated. Objective We aimed to evaluate the effects of LEVO in isolated rat superior mesenteric artery by using the vascular reactivity technique and compare its effect to that of lidocaine. Material and method Arterial rings were obtained from the mesenteric artery of male Wistar rats and kept in organ baths. For recording isometric contractions, each ring was suspended by cotton threads from a force transducer, which was connected to a data acquisition system. Result Both lidocaine and LEVO did not show a vasoconstrictor effect on the basal tone of the arterial rings with functional endothelium. However, when the rings were pre-contracted with phenylephrine, both drugs were able to induce concentration-dependent vasodilatation. The vasodilator effect induced by LEVO did not change after removal of the endothelium, or with the addition of tetraethylammonium (1 mM), a non-selective K+ channel blocker. In the rings without functional endothelium, which were pre-contracted with depolarizing Tyrode’s solution (KCl 80 mM), LEVO-induced vasodilatation was not significantly different from that observed in the rings pre-contracted with phenylephrine. Moreover, it did not show a significant additional vasodilator effect compared to the maximal vasodilator effect of nifedipine. Conclusion This study demonstrated that LEVO produces a vasodilator effect in the rat superior mesenteric artery in an endothelium-independent manner. This effect seems to be mediated via Ca2+ channel blockade in the vascular smooth muscle cells.

Efeito comparativo entre clonixinato de lisina e paracetamol no controle da dor pós-exodontia

BACKGROUND AND OBJECTIVES: Tooth extraction is practiced since the early days of mankind to surgically solve dental problems. However, as any surgical procedure, it promotes an inflammatory reaction with clinical presentation of pain. Several drugs have been used to minimize postoperative discomfort; however there is still no established protocol for its control. This study aimed at evaluating the analgesic effect of lysine and paracetamol to control post tooth extraction pain. METHOD: Double blind randomized study with 40 patients seen by the Surgical Outpatient Setting I, Dentistry Department, Federal University of Sergipe (DOD/UFS), who needed alveolar extractions in different hemiarcades using lysine (125 mg) three times a day or paracetamol (750 mg) four times a day, both during three postoperative days. Pain was evaluated at 24 and 48 hours with the visual analog scale. Data were submitted to Students t and Friedman statistical tests. RESULTS: There have been no statistically significant differences in age, gender and pain intensity. CONCLUSION: Both lysine and paracetamol were effective to control post tooth extraction pain.

Estudo Comparativo da Articaína a 4% com Adrenalina 1:100. 000 e Lidocaína a 2% com Adrenalina 1:100.000 na Insensibilização das Mucosas Lingual, Jugal e Labial da Mandíbula

Resumen pt: Objetivo: Comparar a efeti vidade da Arti caina e da Lidocaina em tecnica de anestesia infi ltrati va supraperiostea em vesti bulo bucal da mandibula em ...

Estudo Comparativo da Articaína a 4% com Adrenalina 1:100.000 e Lidocaína a 2% com Adrenalina 1:100.000 na Insensibilização da Polpa dos 1º Molares Inferiores

Resumen pt: Objeti vo: Avaliar e comparar a efeti vidade da Arti caina a 4% + Epinefrina 1:100.000 e da Lidocaina a 2% com Adrenalina 1:100.000 em tecnica de anestes...

Análise das variações anatômicas do canal da mandíbula encontradas em radiografias panorâmicas

INTRODUCTION: Within the dental clinic blocking the inferior alveolar nerve is the most commonly used, however, several studies have shown higher rates of failure usually have reason to fail in observing the position of the shape and anatomy of the nerves. These failures resulting from anatomic variations of the inferior alveolar nerve have been studied in the literature from studies with the analysis of panoramic radiographs as proposed in this study. OBJECTIVE: The aim of this study was to investigate the occurrence and prevalence of anatomical variations as well as the correlated movements of the jaw with the canals side and sex that may occur in the mandibular canal in panoramic radiographs of patients of the Department of Dentistry, UFS. MATERIAL AND METHOD: Fifteen hundred panoramic radiographs of patients enrolled in the Department of Dentistry, Federal University of Sergipe (UFS) were analyzed radiographic images were observed on a light box using a black mask around the radiographs in an environment with proper lighting. RESULT: In this study 5.3% of bifurcations of the mandibular canal were observed, 47.5% of high canals, 16.8% of intermediate canals, 27.1% to 8.6% lower canals and canals with other variations. CONCLUSION: Based on the height of the mandibular canal was more prevalent among higher canals than other women, and there were no gender differences with respect to other types and affected sides. In the classification of bifid canals there was no statistically significant difference between men and women, the highest prevalence was for canals without bifurcation.

Preemptive analgesia of dexamethasone as compared to ketorolac tromethamine in simple tooth extractions

JUSTIFICATIVA E OBJETIVOS:Entendendo que a dor e o maior transtorno pos-operatorio, diante da necessidade de estabelecer um protocolo terapeutico do seu controle pos-exodontias e dos poucos estudos comparando esses farmacos e que se justifica o trabalho. O objetivo deste estudo foi avaliar e comparar o efeito analgesico preemptivo de dois farmacos, ambos administrados em dose unica.METODOS:A pesquisa tem carater experimental a partir de um ensaio clinico com seres humanos. Trata-se de um estudo duplamente encoberto, cruzado e randomizado, com 51 pacientes atendidos no Ambulatorio de Cirurgia Oral do Departamento de Odontologia da Universidade Federal de Sergipe (DOD/UFS), entre setembro de 2011 e setembro de 2012, que necessitaram de extracoes simples por via alveolar em hemiarcadas diferentes utilizando dexametasona (4mg) e cetorolaco de trometamol (10mg), uma hora antes da cirurgia distintamente. A dor foi avaliada nas primeiras 24 e 48h, com o uso da escala analogica visual. O intervalo de 8 dias foi estabelecido entre as exodontias.RESULTADOS:Nao houve diferencas estatisticamente significantes no teste Exato de Fisher (p>0,05) e Friedman (p>0,05), nem entre os farmacos (considerando um mesmo periodo) nem entre os periodos (considerando o mesmo farmaco).CONCLUSAO:Nao existem diferencas significativas entre os farmacos e os periodos observados.

Avaliação do grau de ansiedade dos pacientes antes de cirurgias orais menores

AbstractIntroduction : Fear and anxiety are common in patients who require odontological treatment. During surgical procedures, anxiety can become a complicating factor from the moment in which the change of patient’s vital signs can generate emergency situations. Objective : Evaluate the degree of preoperative anxiety of patients submitted to oral surgery, to identify which surgical procedure causes more anxiety in patients and also which surgical moment is causing greater anxiety. Material and method : 200 patients were selected for oral surgery at the clinics of the Department of Dentistry, Federal University of Sergipe. On the day of surgery, patients answered the EAD scale and their heart rate (HR) and blood pressure (BP) were evaluated. These data served as baseline of the physical parameters used in the evaluation of preoperative anxiety. Result : Statistically, there were no significant differences (Kruskal-Wallis test, p=0.6933) between treatments regarding anxiety. The Spearman correlation (rS) between the values obtained for anxiety, blood pressure levels and heart rate showed a weak correlation (rs <0.2), although significant (p<0.05) between the results. The anesthesia was the moment that produced greater anxiety (Kruskal-Wallis test, p<0.05) compared to the other moments.