Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 12 de 12
Filter
Add more filters










Publication year range
1.
Arq Neuropsiquiatr ; 71(3): 174-9, 2013 Mar.
Article in English | MEDLINE | ID: mdl-23563718

ABSTRACT

The objective of this article was to investigate, with a systematic protocol of quantitative sensory testing, patients with persistent idiopathic facial pain (PIFP) and others with trigeminal traumatic neuropathic pain (TTN) compared to controls. Thirty patients with PIFP, 19 with TTN, and 30 controls were evaluated on subjective numbness and dysesthesia and with a systematic protocol of quantitative sensory testing for thermal evaluation (cold and warm), mechanical detection (touch and pinpricks for mechanical pain), superficial pain thresholds, and corneal reflex. We found that PIFP and TTN had numbness and dysesthesia higher than controls (p<0.001 and p=0.003), and that in both of them mechanical pain by pinpricks detection was abnormal intra and extra orally at the mandibular branch (p<0.001). Cold, warm, and tactile detections and pain thresholds were similar among the groups. Corneal reflex was abnormal in TTN (p=0.005). This study supports neuropathic mechanisms involving pain processing in PIFP and that the criterion on absence of sensorial variations in PIFP should be revised.


Subject(s)
Facial Pain/physiopathology , Pain Measurement/methods , Pain Threshold/physiology , Trigeminal Nerve Injuries/physiopathology , Adult , Aged , Analysis of Variance , Blinking/physiology , Case-Control Studies , Female , Humans , Male , Middle Aged , Reproducibility of Results , Statistics, Nonparametric
2.
Arq. neuropsiquiatr ; 71(3): 174-179, mar. 2013. tab, graf
Article in English | LILACS | ID: lil-668764

ABSTRACT

The objective of this article was to investigate, with a systematic protocol of quantitative sensory testing, patients with persistent idiopathic facial pain (PIFP) and others with trigeminal traumatic neuropathic pain (TTN) compared to controls. Thirty patients with PIFP, 19 with TTN, and 30 controls were evaluated on subjective numbness and dysesthesia and with a systematic protocol of quantitative sensory testing for thermal evaluation (cold and warm), mechanical detection (touch and pinpricks for mechanical pain), superficial pain thresholds, and corneal reflex. We found that PIFP and TTN had numbness and dysesthesia higher than controls (p<0.001 and p=0.003), and that in both of them mechanical pain by pinpricks detection was abnormal intra and extra orally at the mandibular branch (p<0.001). Cold, warm, and tactile detections and pain thresholds were similar among the groups. Corneal reflex was abnormal in TTN (p=0.005). This study supports neuropathic mechanisms involving pain processing in PIFP and that the criterion on absence of sensorial variations in PIFP should be revised.


O objetivo deste artigo foi investigar, com um protocolo sistemático de testes sensitivos quantitativos, pacientes com dor facial idiopática persistente (DFIP) e outros com dor neuropática trigeminal traumática (DNTT) comparado aos controles. Trinta pacientes com DFIP, 19 com DNTT e 30 controles foram avaliados quanto à dormência e à disestesia subjetiva e por meio de um protocolo sistemático de testes sensitivos quantitativos, que incluiu avaliação térmica (frio e quente), detecção mecânica (táctil e alfinetes), limites de dor superficial e reflexo córneo-palpebral. Foi observado que os pacientes apresentaram mais dormência e disestesia do que os controles (p<0,001 e p=0,003), além de mais anormalidades intra e extraorais no ramo mandibular (p<0,001). As alterações de calor, frio, dor e tato foram semelhantes entre os grupos. O reflexo córneo-palpebral foi anormal somente no grupo com DNTT (p=0,005). Este estudo suporta mecanismos de dor neuropática envolvidos no processamento da DFIP, e o critério de ausência de variações sensoriais nesta deve ser revisto.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Facial Pain/physiopathology , Pain Measurement/methods , Pain Threshold/physiology , Trigeminal Nerve Injuries/physiopathology , Analysis of Variance , Blinking/physiology , Case-Control Studies , Reproducibility of Results , Statistics, Nonparametric
4.
Clin Neurol Neurosurg ; 113(4): 268-71, 2011 May.
Article in English | MEDLINE | ID: mdl-21146286

ABSTRACT

OBJECTIVES: Idiopathic trigeminal neuralgia (ITN) is an excruciating shock-like paroxysmal pain restricted to the trigeminal area of innervation, with discrete loss of sensibility (thermal, tactile and painful). Trigeminal postherpetic neuralgia (PHN) is a neuropathic pain at the trigeminal territory that persists after Herpes zoster infection, which also is associated to sensorial compromise. The objective of this study was to evaluate the somesthetic facial sensibility (pain, thermal and tactile) and to compare the findings between PHN and ITN. METHODS: 18 patients with PHN and 26 patients with ITN were diagnosed by the IASP criteria. They were evaluated with a systematic approach, which included mechanical, thermal (cold and warm) and painful stimuli. RESULTS: We found statistical significance at the ophthalmic branch of PHN in pain (p=0.001), tactile (p=0.002), cold (p=0.016) and warm (p=0.013); in ITN, the maxillary branch had higher threshold with pinpricks (p=0.016) and the mandibular branch had higher tactile threshold. CONCLUSIONS: The trigeminal area affected by the disease had the higher sensorial losses (ophthalmic branch in PHN and maxillary/mandibular branches in ITN). PHN patients had losses in large and small fibers; therefore, ITN patients had the losses mostly in large fibers, which support different peripheral neural mechanisms for these neuropathic diseases.


Subject(s)
Facial Neuralgia/etiology , Trigeminal Neuralgia/complications , Aged , Cold Temperature , Facial Neuralgia/physiopathology , Female , Hot Temperature , Humans , Male , Middle Aged , Mouth Mucosa/innervation , Mouth Mucosa/physiology , Neuralgia, Postherpetic/physiopathology , Pain Measurement , Physical Stimulation , Trigeminal Neuralgia/physiopathology
6.
Rev. Assoc. Paul. Cir. Dent ; 64(1): 69-74, jan.-fev. 2010.
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-590293

ABSTRACT

O cisto ósseo simples, lesão incomum dentre as patologias da cavidade oral, apresenta uma etiologia ainda inconclusiva, o que se pode constatar frente à variedade de termos que têm sido utilizados para descrever tal condição. Clinicamente, este se apresenta de forma assintomática, sendo na grande maioria dos casos, diagnosticado a partir de um achado ra- diográfico. Apresenta uma predileção pela mandíbula, em regiões dentadas, caracterizando-se radiograficamente como uma lesão unilocular sem expansão das paredes ósseas circundantes. Este artigo visa relatar dois casos clínicos de cistos ósseos simples diagnosticados como atípicos devido ao acometimento do osso mandibular em regiões edêntulas, sendo que em um dos casos apresentou expansão das paredes ósseas; aspecto que, diverge do comumente encontrado na literatura. Ambos os casos clínicos foram submetidos à curetagem e promoção do sangramento das paredes ósseas, com subseqüente formação de um coágulo sanguíneo estável. Como visto na maioria dos casos relatados na literatura, a curetagem da região acometida pelo cisto ósseo traumático apresenta-se como uma alternativa terapêutica extremamente eficaz, devendo o paciente ser periodicamente monitorado, através de exames radiográficos, ate que haja a completa formação do tecido ósseo, já que a recorrência local, apesar de raramente relatada, pode ocorrer.


The sim pie bone cyst is not an ordinary lesion among the oral cavity pathologies and still does not present a conclusive etiology. This can be very well noticed when we face the many terms that have been used to describe it. Clinically speaking, it is not presented in a symptomatic way, being diagnosed, mostly, from X-ray exams. It happens preferably in the teeth regions of the mandible, and can be identified through radiographic exams as an unilocular lesion with no expansion of the surround bone walls. This article aims to relate two clinical cases in which the simple bone cysts have been diagnosed as atypical because of the damage caused on the mandible bone at edentulous regions, considering that in one of them there has been an expansion of the bone walls. Such aspects are not in accordance with what has been described at the common literature. Both clinical cases have been submitted to a curettage proceeding, what developed the bleeding of the bone walls, with subsequent formation of a stable blood coagulum. According to the literature, in most cases, the curettage proceeding at the affected region with the traumatic bone cyst is a very effective therapeutic alternative, in which the patient should be monitored periodically, through radiographic examination, until the bone texture is completely rebuilt, since although it is rare, the local reincidence may occur.


Subject(s)
Humans , Male , Female , Young Adult , Bone Cysts/pathology , Diagnosis, Oral , Jaw Neoplasms/pathology
7.
J Adhes Dent ; 11(4): 279-86, 2009 Aug.
Article in English | MEDLINE | ID: mdl-19701508

ABSTRACT

PURPOSE: To assess the influence of variations in the application technique of self-etching adhesive systems on the adhesive bond strength to enamel. MATERIALS AND METHODS: One hundred thirty bovine teeth were used and divided into 13 groups. The teeth were embedded in acrylic resin, ground until a flat enamel area was exposed, and polished with 600-grit abrasive paper. The self-etching adhesive systems One Up Bond F, Clearfil SE Bond, Self & Etch were used, and the conventional adhesive Magic Bond and acid etching were used as the control group. One or two layers of the self-etching systems were actively or passively applied. Composite cylinders were made over the bonding area. The samples were submitted to shear bond testing at a speed of 1 mm/min. Statistical analysis of the data was performed using two-way ANOVA, followed by Tukey's test at a 5% level of significance. RESULTS: Significant variations were observed for the factors type of adhesive (p = 0.001, F = 193,3594, df = 3) and application technique (p = 0.001, F = 29,9119, df = 1). No significant interaction was found between the two factors (p = 0.08). The adhesives Clearfil SE Bond and One Up Bond F presented significantly higher adhesive bond strength means than Self & Etch. The active application of two layers resulted in higher bond strength means than the other techniques. CONCLUSION: The application technique had a significant influence on adhesive bond strength to enamel.


Subject(s)
Dental Bonding/methods , Dental Enamel/ultrastructure , Dentin-Bonding Agents/chemistry , Resin Cements/chemistry , Acid Etching, Dental , Animals , Bisphenol A-Glycidyl Methacrylate/chemistry , Cattle , Composite Resins/chemistry , Dental Materials/chemistry , Materials Testing , Methacrylates/chemistry , Organophosphonates/chemistry , Photomicrography , Random Allocation , Stress, Mechanical , Surface Properties
8.
Rev. odontol. UNESP (Online) ; 37(4): 329-336, out.-dez. 2008. ilus, tab
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-621545

ABSTRACT

Vinte pacientes foram avaliados, sendo aplicadas, às escalas de ansiedade IDATE - Traço e Estado (Inventário de Ansiedade traço-estado), o SRQ-20 (self report questionnaire), a escala de ansiedade dental (EAD) e a escala visual analógica (EVA), para mensuração da dor esperada. Durante a exodontia, os pacientes foram monitorados através de um oxímetro multiparamétrico, para coletar os valores de batimento cardíaco, saturação de oxigênio e pressão arterial, em períodos pré-determinados. Logo após a cirurgia, foi novamente aplicada aEVA, para mensuração da dor vivenciada, e repetida no período de 48 horas e de 7 dias. Os dados obtidos foram submetidos à análise estatística. Dos 20 pacientes avaliados, 12 eram mulheres, com predominância da faixa etária de 41 a 50 anos. A prevalência de transtornos psiquiátricos menores, obtidos através do SRQ-20, foi de 25%. A maioria dos pacientes avaliados (80%) já havia extraído algum elemento dentário, sendo que 65% relataram a presença de dor quando daconsulta. Através da escala de ansiedade dentária, constatou-se que apenas 15% dos pacientes foram classificados como ansiosos frente ao tratamento odontológico. A média dos escores da EVA, referentes à intensidade da dor esperada, pontuados pelo paciente, foi de 4,7 e da dor vivenciada, logo após o procedimento, foi de 1,3, sendo observada uma diferença estatisticamente significante entre estes valores. Quando correlacionados os escores do IDATE (Traço e Estado) e da EVA, nãofoi observada uma correlação estatística entre eles. Para os sinais vitais, nos diferentes momentos cirúrgicos, não foram constatadas diferenças estatisticamente significantes. Conclui-se que não houve uma correlação entre a presença de dor aguda e sintomas ansiosos.


Twenty patients were evaluated, and the dental anxiety scale (DAS), the Visual Analogous Scale (VAS) and the Self Report Questionnaire (SRQ-20) were applied to the State-trait Anxiety Inventory (IDATE - Trace - anxiety) scales, for the measurement of the expected pain. Patients were monitored during surgery through a multiparametric oxymeter to collect heart frequency, oxygen saturation and blood pressure values in predetermined periods. Soon after surgery, VAS was applied again to measure the actual pain present, the procedure being repeated within the period of 48 hours and 7 days. Data collected was submitted to statistical analysis. Of 20 patients evaluated, 12 were women, with ages predominantly between 41 to 50 years.Theprevalence of minor psychiatric disturbances, obtained with the aid of SRQ-20, was 25%. Most of the evaluated patients (80%) had already extracted some dental element, and 65% reported pain during consultation. With the aid of the dental anxiety scale, only 15% of the patients were considered anxious in relation to the odontological treatment. The mean VAS score due to the intensity of the expected pain scored by the patient was 4.7, and with reference to the actual pain,right after the procedure was 1.3, and observed a statistically significant difference between these values. When compared the IDATE (Trace - State) and VAS scores, it not reported a statistical correlation between these values. For vital signs, in the different surgical moments, no statistically significant differences were observed. There was not a correlation between the presence of acute pain and anxiety symptoms.


Subject(s)
Anxiety , Surgery, Oral , Analysis of Variance , Statistics, Nonparametric , Acute Pain , Visual Analog Scale , Medical History Taking , Arterial Pressure , Oxygen Saturation , Heart Rate
9.
J Endod ; 33(4): 422-6, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17368331

ABSTRACT

The aim of this study was to evaluate the number and the diameter of dentin tubules in root canals, in the cervical, middle, and apical thirds, of human and bovine teeth. Twenty-four single-rooted, human premolars were divided into four groups (n = 6): GH1, 10 to 15 years; GH2, 16 to 30 years; GH3, 31 to 45 years; and GH4, 46 to 80 years; and 24 bovine incisors were divided into four groups (n = 6): GB1, central; GB2, lateral first; GB3, lateral second; and GB4, lateral third. The crowns were removed from the specimens, which were then debrided, sectioned longitudinally in the vestibular-lingual direction, and submitted to ultrasonic cleaning. Scanning electron microscopic evaluations were made with 1,000x and 5,000x magnification. According to the root thirds, statistically significant differences were found both for the number and the diameter of dentin tubules, with the cervical third presenting the highest mean values for both specimen types. As regards the number of dentin tubules, it was observed that the bovine specimens presented a significantly higher mean value than the human specimens; this difference was not observed when the diameters of the two types were compared.


Subject(s)
Dental Pulp Cavity/ultrastructure , Dentin/ultrastructure , Adolescent , Adult , Aged , Aged, 80 and over , Animals , Bicuspid/ultrastructure , Cattle , Child , Humans , Incisor/ultrastructure , Microscopy, Electron, Scanning , Middle Aged , Models, Animal , Photomicrography , Root Canal Preparation , Tooth Apex/ultrastructure
10.
Ciênc. odontol. bras ; 9(4): 35-43, out.-dez. 2006. ilus, tab, graf
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-462882

ABSTRACT

O objetivo deste estudo foi avaliar o número e o diâmetro de túbulos dentinários em canais radiculares, nos diferentes terços, em dentes humanos, visando auxiliar estudos na área da permeabilidade dentinária. Para tal, foram utilizados 24 dentes humanos prémolares hígidos, divididos em 4 grupos de acordo com faixas etárias - G1: 10-15; G2: 16-30; G3: 31-45: G4: 46-80 anos de idade. Os dentes tiveram suas coroas removidas, sendo os canais instrumentados, seccionados longitudinalmente, submetidos ao ultra-som e lavados com EDTA. Em seguida, foram metalizados e analisados ao MEV. Os dados obtidos foram submetidos aos testes ANOVA e Tukey (5%). Quando analisados os terços radiculares, o cervical apresentou a maior média, seguido dos terços médio e apical. Com relação às faixas etárias, o G3 apresentou a maior média de número de túbulos dentinários, tendo o G4 apresentado uma média signifi cantemente menor que os demais. Não foram encontrados, nos grupos estudados, diferenças com relação ao diâmetro tubular. Concluímos que apenas os grupos G3 e G4 diferiram estatisticamente entre si, com relação ao número de túbulos dentinários.


Subject(s)
Humans , Bicuspid , Dental Pulp Cavity , Dentin Permeability , Analysis of Variance
11.
Rev. Assoc. Paul. Cir. Dent ; 60(3): 230-235, maio-jun. 2006. ilus, tab
Article in Portuguese | LILACS, BBO - Dentistry | ID: biblio-873278

ABSTRACT

Neste estudo avaliamos o nível de conhecimento da população de classe média quanto à atuação do cirurgião- dentista na sociedade. Por meio de questionário foram abordadas questões relativas ao campo de atuação desses profissionais, à sua formação técnico-científica, ao grau de informação da sociedade quanto à Estomatologia e sua inter-relação com outras especialidades da área. Os resultados obtidos foram relevantes, evidenciando a falta de conhecimento da população a respeito da Odontologia voltada para a saúde bucal, bem como a qualificação dos profissionais para diagnosticar e tratar doenças da boca, revelando a pouca ênfase dada à Estomatologia no País, o que demonstra a necessidade da divulgação estimulada e reconhecida da área de atuação do cirurgião-dentista. Para tanto, a educação é a saída em direção a uma sociedade mais bem informada


Subject(s)
Diagnosis, Oral , Mouth Diseases/diagnosis , Mouth Diseases/prevention & control , Mouth Diseases/therapy , Oral Health , Oral Medicine , Surveys and Questionnaires
12.
Rev. odontol. UNESP ; 33(4): 169-174, out.-dez. 2004. ilus
Article in Portuguese | LILACS, BBO - Dentistry | ID: lil-510847

ABSTRACT

O controle da infecção na área da saúde é uma necessidade primordial na rotina detrabalho, pois doenças infecciosas podem ser transmitidas para pacientes e profissionais no exercícioda profissão. Uma das ações para proporcionar a segurança deles é o processo de esterilização.Para o controle ou monitoramento do processo, por estufa ou autoclave, podem ser utilizadosmarcadores físicos, químicos ou biológicos. Esta pesquisa avaliou, por meio de questionários,os conhecimentos do cirurgião-dentista sobre a esterilização do instrumental clínico. Para tal,questionários foram distribuídos para profissionais de diversas especialidades na cidade de São Josédos Campos - SP. Os resultados demonstram que há falhas no conhecimento dos profissionais daárea quanto ao processo de esterilização do material clínico, o que vem alertar para a necessidadede uma maior conscientização dos cirurgiões-dentistas.


Subject(s)
Sterilization
SELECTION OF CITATIONS
SEARCH DETAIL
...