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Purpose. The aim of this paper is to report a case in which the cone beam computed tomography (CBCT) was important for the confirmation of the presence of maxillary sinus septum and, therefore, the absence of a suspected pathologic process. Case Description. A 27-year-old male patient was referred for the assessment of a panoramic radiograph displaying a radiolucent area with radiopaque border located in the apical region of the left upper premolars. The provisional diagnosis was either anatomical variation of the maxillary sinuses or a bony lesion. Conclusion. The CBCT was important for an accurate assessment and further confirmation of the presence of maxillary septum, avoiding unnecessary surgical explorations.
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UNLABELLED: Periodontal disease (PD) is one of the most commonly known human chronic disorders. The relationship between PD and several systemic diseases such as diabetes mellitus (DM) has been increasingly recognized over the past decades. OBJECTIVE: The purpose of this review is to provide the reader with knowledge concerning the relationship between PD and DM. Many articles have been published in the English and Portuguese literature over the last 50 years examining the relationship between these two chronic diseases. Data interpretation is often confounded by varying definitions of DM, PD and different clinical criteria were applied to determine the prevalence, extent and severity of PD, levels of glycemic control and diabetes-related complications. METHODS: This paper provides a broad overview of the predominant findings from research conducted using the BBO (Bibliografia Brasileira de Odontologia), MEDLINE, LILACS and PubMed for Controlled Trials databases, in English and Portuguese languages published from 1960 to October 2012. Primary research reports on investigations of relationships between DM/DM control, PD/periodontal treatment and PD/DM/diabetes-related complications identified relevant papers and meta-analyses published in this period. RESULTS: This paper describes the relationship between PD and DM and answers the following questions: 1- The effect of DM on PD, 2- The effects of glycemic control on PD and 3- The effects of PD on glycemic control and on diabetes-related complications. CONCLUSIONS: The scientific evidence reviewed supports diabetes having an adverse effect on periodontal health and PD having an adverse effect on glycemic control and on diabetes-related complications. Further research is needed to clarify these relationships and larger, prospective, controlled trials with ethnically diverse populations are warranted to establish that treating PD can positively influence glycemic control and possibly reduce the burden of diabetes-related complications.
Assuntos
Glicemia/metabolismo , Complicações do Diabetes , Doenças Periodontais/etiologia , Doença Crônica , Complicações do Diabetes/sangue , Humanos , Doenças Periodontais/sangue , Fatores de RiscoRESUMO
OBJECTIVES: The aim of this work was to evaluate saliva and tongue coating pH in oral healthy patients with morning bad breath before and after use of different oral mouthrinses. MATERIAL AND METHODS: Saliva and tongue coating pH of 50 patients allocated in 5 groups were measured respectively by a digital pHmeter and color pH indicators, before, immediately after and 30 min after rinsing 5 different mouthrinses: cetilpiridine chloride associated with sodium chloride, triclosan, enzymatic solution, essential oil and distilled water. RESULTS: Only triclosan and essential oil increased salivary pH immediately after rising. The enzymatic solution decreased salivary and tongue coating pH immediately after rinsing. CONCLUSIONS: Salivary pH tended to be acidic while tongue coating pH tended to be alkaline, even after rising. Triclosan and essential oil mouthrinses increased salivary pH immediately after rinsing. Enzymatic solution decreased saliva and tongue coating pH immediately after rising.
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Halitose/tratamento farmacológico , Antissépticos Bucais/farmacologia , Saliva/química , Língua/química , Análise de Variância , Anti-Infecciosos Locais/farmacologia , Estudos de Casos e Controles , Compostos Clorados/farmacologia , Desinfetantes de Equipamento Odontológico/farmacologia , Humanos , Concentração de Íons de Hidrogênio/efeitos dos fármacos , Óxidos/farmacologia , Saliva/efeitos dos fármacos , Cloreto de Sódio/farmacologia , Fatores de Tempo , Língua/efeitos dos fármacos , Triclosan/farmacologiaRESUMO
Cutaneous Larva migrans is a very common disease in tropical regions. In the oral mucosa, the infection occurs in the same way as in the skin, but it is rarer. This report describes two cases of Larva migrans in the oral mucosa. The first case was in a 27-year-old woman who presented an erythematous plaque located on the buccal mucosa, extending to a posterior direction, following a linear pattern, to other areas of the mouth. After incisional biopsy of the anterior-most portion of the lesion, morphological details obtained in multiple examined sections suggested Necator or Ancylostoma braziliense larvae as the cause of infection. The second case was in a 35-year-old male who presented a fusiform erythematous plaque in the palatal mucosa. This area was removed and submitted to microscopic examination under a presumptive diagnosis of "parasite migratory stomatitis". The histological characteristics were suggestive of a larva pathway. In both cases the lesion disappeared after biopsy and the patients were symptom-free.
Assuntos
Larva Migrans/patologia , Doenças da Boca/parasitologia , Mucosa Bucal/parasitologia , Adulto , Ancylostoma/isolamento & purificação , Animais , Biópsia , Brasil , Feminino , Humanos , Larva Migrans/parasitologia , Masculino , Doenças da Boca/patologia , Mucosa Bucal/patologiaRESUMO
Periodontal disease (PD) is one of the most commonly known human chronic disorders. The relationship between PD and several systemic diseases such as diabetes mellitus (DM) has been increasingly recognized over the past decades. Objective: The purpose of this review is to provide the reader with knowledge concerning the relationship between PD and DM. Many articles have been published in the English and Portuguese literature over the last 50 years examining the relationship between these two chronic diseases. Data interpretation is often confounded by varying definitions of DM, PD and different clinical criteria were applied to determine the prevalence, extent and severity of PD, levels of glycemic control and diabetes-related complications. Methods: This paper provides a broad overview of the predominant findings from research conducted using the BBO (Bibliografia Brasileira de Odontologia), MEDLINE, LILACS and PubMed for Controlled Trials databases, in English and Portuguese languages published from 1960 to October 2012. Primary research reports on investigations of relationships between DM/DM control, PD/periodontal treatment and PD/DM/diabetes-related complications identified relevant papers and meta-analyses published in this period. Results: 7This paper describes the relationship between PD and DM and answers the following questions: 1- The effect of DM on PD, 2- The effects of glycemic control on PD and 3- The effects of PD on glycemic control and on diabetes-related complications. Conclusions: The scientific evidence reviewed supports diabetes having an adverse effect on periodontal health and PD having an adverse effect on glycemic control and on diabetes-related complications. Further research is needed to clarify these relationships and larger, prospective, controlled trials with ethnically diverse populations are warranted to establish that treating PD can positively influence glycemic control and possibly reduce the burden of...
Assuntos
Humanos , Glicemia/metabolismo , Complicações do Diabetes/sangue , Doenças Periodontais/etiologia , Doença Crônica , Doenças Periodontais/sangue , Fatores de RiscoRESUMO
The aims of this study were to evaluate the quality of indirect digitized radiographic images taken during endodontic procedures and to compare the measurements recorded with this technique to those obtained from conventional radiographs. Two-hundred conventional periapical radiographs taken at the undergraduate Endodontics Clinic of the Dental School of Bauru were digitized. The conventional and indirect digitized images were compared by three examiners as to the quality and accuracy of the measurements recorded during endodontic treatment, in canal length determination, gutta-percha adaptation, lateral condensation and final obturation. The conventional radiographs were observed on a film viewer, surrounded by a dark card, and measured with magnifying glass and a millimeter ruler; the indirect digitized images were evaluated on the Digora for Windows software, with free utilization of the bright/contrast tool. Unlike the conventional radiographic images, all indirect digitized images were considered as having a high quality. The distance between the filling material and the root apex was 0.117 mm larger, on average, for the Digora system (p<0.01). The measurements achieved by the investigated radiographic methods were clinically similar and they are thus equivalent. Changes in brightness and contrast of the images using Digora software improved the diagnosis.
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Cavidade Pulpar/diagnóstico por imagem , Intensificação de Imagem Radiográfica/métodos , Radiografia Dentária Digital/métodos , Tratamento do Canal Radicular , Guta-Percha/uso terapêutico , Humanos , Processamento de Imagem Assistida por Computador/métodos , Tecido Periapical/diagnóstico por imagem , Radiografia Interproximal/métodos , Materiais Restauradores do Canal Radicular/uso terapêutico , Obturação do Canal Radicular/métodos , Preparo de Canal Radicular/métodos , Software , Ápice Dentário/diagnóstico por imagem , Filme para Raios XRESUMO
El pénfigo vulgar es una enfermedad vesículobulbosa de la piel y de las membranas mucosas caracterizada por la presencia de auto-anticuerpos contra moléculas de la adhesión intraepidérmicas. Es una condición poco usual, capaz de provocar señales y síntomas que varían de leve a moderado, pudiendo muchas veces, exigir controles terapéuticos prolongados para toda la vida del paciente. Su etiología permanece oscura, pero se sabe que poseen etiopatogenia de carácter inmunológico. El objetivo del presente artículo es presentar un caso clínico de manifestaciones bucales de Pénfigo Vulgar, donde se buscó hacer consideraciones generales sobre la importancia del odontólogo en relación a las conductas frente a los pacientes con sospecha de ser portadores de esta patología.
Pemphigus vulgaris is an autoimmune blistering disease of the skin and mucous membranes characterized by the presence of autoantibodies against intra-epidermal adhesion molecules. It is an uncommon condition and it is able to produce from mild to severe sigh and symptoms, and sometimes may be lifethreatening. Its etiology is still obscure, but it is known to be an immunological condition. The aim of this paper is to report a case of bucal manifestations of pemphigus vulgaris, regarding important general considerations to the dentist in what is concerned to the pemphigus vulgaris patients.
Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Odontologia , Doenças do Sistema Imunitário/diagnóstico , Mucosa Bucal , Pênfigo/patologia , BocaRESUMO
OBJECTIVES: The aim of this work was to evaluate saliva and tongue coating pH in oral healthy patients with morning bad breath before and after use of different oral mouthrinses. MATERIAL AND METHODS: Saliva and tongue coating pH of 50 patients allocated in 5 groups were measured respectively by a digital pHmeter and color pH indicators, before, immediately after and 30 min after rinsing 5 different mouthrinses: cetilpiridine chloride associated with sodium chloride, triclosan, enzymatic solution, essential oil and distilled water. RESULTS: Only triclosan and essential oil increased salivary pH immediately after rising. The enzymatic solution decreased salivary and tongue coating pH immediately after rinsing. CONCLUSIONS: Salivary pH tended to be acidic while tongue coating pH tended to be alkaline, even after rising. Triclosan and essential oil mouthrinses increased salivary pH immediately after rinsing. Enzymatic solution decreased saliva and tongue coating pH immediately after rising.
Assuntos
Humanos , Halitose/tratamento farmacológico , Antissépticos Bucais/farmacologia , Saliva/química , Língua/química , Análise de Variância , Anti-Infecciosos Locais/farmacologia , Estudos de Casos e Controles , Compostos Clorados/farmacologia , Desinfetantes de Equipamento Odontológico/farmacologia , Concentração de Íons de Hidrogênio/efeitos dos fármacos , Óxidos/farmacologia , Saliva/efeitos dos fármacos , Cloreto de Sódio/farmacologia , Fatores de Tempo , Língua/efeitos dos fármacos , Triclosan/farmacologiaRESUMO
The aim of this study was to evaluate halitosis parameters and sialometry in patients subjectedto head and neck radiotherapy compared to patients with periodontal disease, establishing arelationship between oral concentration of volatile sulfur compounds (VSCs) and tongue coatingpresence, salivary flow rate and BANATM test. Methods: Thirty-eight patients were examinedand divided into 2 groups: group I: patients with chronic generalized periodontal disease previouslydiagnosed and not treated; group II: patients subjected to head and neck radiotherapy. All volunteerswere subjected to halitosis measurements through a sulphide monitor, evaluation of tongue coatingweight, stimulated and non-stimulated sialometry and BANATM test. Results: The results wereanalyzed by analysis of the variance, Pearsons correlation coefficient and Students t-test, showingthat both groups presented halitosis. There was also a relationship between tongue coatingpresence and VSC levels in both groups and the irradiated patients showed lower salivary flowrates. Conclusions: Under the tested conditions, it may be concluded that halitosis can beconsidered as an adverse effect of radiotherapy, associated with low salivary flow and poor oralhealth, which seems to be the main contribution to bad breath, since patients with periodontaldisease also showed halitosis.
Assuntos
Halitose , Neoplasias de Cabeça e Pescoço , Periodontite , RadioterapiaRESUMO
Cutaneous Larva migrans is a very common disease in tropical regions. In the oral mucosa, the infection occurs in the same way as in the skin, but it is rarer. This report describes two cases of Larva migrans in the oral mucosa. The first case was in a 27-year-old woman who presented an erythematous plaque located on the buccal mucosa, extending to a posterior direction, following a linear pattern, to other areas of the mouth. After incisional biopsy of the anterior-most portion of the lesion, morphological details obtained in multiple examined sections suggested Necator or Ancylostoma braziliense larvae as the cause of infection. The second case was in a 35-year-old male who presented a fusiform erythematous plaque in the palatal mucosa. This area was removed and submitted to microscopic examination under a presumptive diagnosis of "parasite migratory stomatitis". The histological characteristics were suggestive of a larva pathway. In both cases the lesion disappeared after biopsy and the patients were symptom-free.
Larva migrans cutânea é uma doença muito comum em regiões tropicais. Na mucosa oral, a infecção ocorre da mesma forma como na pele, mas é raro. Este relato descreve dois casos de Larva migrans na mucosa oral. O primeiro caso foi de uma mulher de 27 anos de idade, que apresentou uma placa eritematosa localizada na mucosa julgal, estendendo-se posteriormente, em conformação linear, para outras áreas da boca. Após biópsia incisional da porção mais anterior da lesão, detalhes morfológicos obtidos em múltiplos cortes examinados sugeriram Necator ou larvas de Ancylostoma braziliense como a causa da infecção. O segundo caso foi de um homem de 35 anos de idade que apresentou uma placa fusiformes eritematosas na mucosa palatina. Esta área foi removida e submetida a exame microscópico, com diagnóstico presuntivo de "estomatite migratória por parasita". As características histológicas foram sugestivas de trajeto de larva. Em ambos os casos a lesão desapareceu após a biópsia e os pacientes estavam assintomáticos.
Assuntos
Adulto , Animais , Feminino , Humanos , Masculino , Larva Migrans/patologia , Doenças da Boca/parasitologia , Mucosa Bucal/parasitologia , Ancylostoma/isolamento & purificação , Biópsia , Brasil , Larva Migrans/parasitologia , Doenças da Boca/patologia , Mucosa Bucal/patologiaRESUMO
OBJECTIVE: The objective of this study was to investigate the relationship between halitosis parameters in patients with and without cleft lip and/or palate. STUDY DESIGN: Forty-two subjects were examined. They were divided into group I, postgraduate students of Bauru Dental School (FOB); and group II, individuals with repaired cleft lip and/or palate. The concentration of volatile sulfur compounds (VSC) was assessed with a portable sulfide monitor and the values were correlated to the salivary flow rate and weight of tongue coating. RESULTS: There was a relationship between the presence of tongue coating and VSC levels, as well as between salivary flow rate and VSC levels in group II. The same group also revealed a significant correlation between weight of tongue coating and salivary flow rate. There were no significant differences between groups as regards the Halimeter oral measurement. CONCLUSIONS: Individuals with repaired cleft lip and/or palate can have the same VSC levels as subjects without clefts.
Assuntos
Fenda Labial/complicações , Fissura Palatina/complicações , Halitose/etiologia , Compostos de Enxofre/análise , Língua/química , Adulto , Benzoilarginina-2-Naftilamida , Testes Respiratórios , Estudos de Casos e Controles , Feminino , Halitose/diagnóstico , Humanos , Masculino , Mucosa Nasal/química , Higiene Bucal , Saliva/metabolismo , Taxa SecretóriaRESUMO
The aim of this work is to present a case of a 39-years-old man with a 2cm sized purple pedunculated tissue on the soft palate, next to upper right retromolar area, asymptomatic, with one day time evolution and vascular appearance. There was no trauma history or systemic diseases. Based on the clinical findings our previous diagnosis was traumatic granuloma, hemangioma or blood coagulum formation after local trauma. After one week, intraoral examination revealed absence of the lesion, which disappeared completely. This case illustrates that the absence of trauma history and atypical clinical characteristics can be a diagnostic defiance in the clinical routine.
El objetivo de este trabajo es presentar un caso de un hombre de 39 años de edad, con un tejido de 2 cm pediculado color púrpura en el paladar blando, junto al área retromolar superior derecha, asintomático, con un día de evolución y de aspecto vascular. No había historia de trauma o enfermedades sistémicas. Con base en los hallazgos clínicos nuestro diagnóstico previo fue granuloma traumático, hemangioma o la formación de coágulos sanguíneos, después de un traumatismo local. Luego de una semana, el examen intraoral reveló ausencia de la lesión, la que desapareció por completo. Este caso ilustra que la ausencia de historia de trauma y las características clínicas atípicas, puede ser un desafío diagnóstico en la rutina clínica.
Assuntos
Humanos , Masculino , Hemorragia Bucal/etiologia , Mucosa Bucal/lesões , Palato Mole/lesõesRESUMO
A paracoccidioidomicose é uma doença sistêmica que envolve primariamente, os pulmões e, posteriormente, dissemina-se para outros órgãos e sistemas. Lesões secundárias aparecem frequentemente nas membranas mucosas, linfonodos e pele. Tanto a apresentação clínica dessa micose quanto o curso da doença variam para cada paciente. Infecções subclínicas tem sido documentadas em pessoas saudáveis residentes em áreas endêmicas. Essas áreas estão confinadas a alguns países da América Latina. A paracoccidioidomicose é frequentemende diagnosticada no Brasil, Venezuela, Colômbia, Equador e Argentina. No Brasil a doença constitui um importante problema de saúde pública. O agente etiológico da doença é um fungo dismórfico, o Paracoccidioides brasiliensis. A abordagem clínica de pacientes portadores de lesões ulceradas crônicas na boca deve considerar a paracoccidioidomicose como possibilidade diagnóstica. Este trabalho apresenta uma revisão de literatura sobre essa doença, abordando aspectos clínicos, epidemiologia, métodos diagnósticos e de tratamento, além de relatar um caso diagnosticado após avaliação clínica, citologia esfoliativa e biópsia incisional
Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Antifúngicos , Biologia Celular , Boca/lesões , ParacoccidioidomicoseRESUMO
This cross-sectional study aimed at evaluating the oral health conditions of building construction workers from a city in the mid-west region of São Paulo, Brazil. This study involved 219 male subjects, aged 17 to 72. The definition of a random sample utilized the functional number of each worker as a criterion to the raffle, which took into account all 450 subjects registered in the Working Accidents Prevention Program. The examination of oral health conditions by DMFT index and need of treatment were carried out according to WHO criteria (1997). This paper reports the prevalence of caries according to age, occupation, and educational level. Among the 219 workers examined, the mean DMFT was 16.9. Amongst the younger workers (<25 years-old), 21.3 teeth showed no need of treatment, while the older ones showed increasing treatment needs (p<0.001). The DMFT values were 15.6 for the administrative duties and 21.7 for foremen and bricklayers, although the differences were not statistically significant. The DMFT index showed an increase with age for all groups (p<0.001). The self-reported need of treatment was associated with a smaller DMFT for people that reported a positive response when compared with subjects that did not report these needs (p<0.05). These differences were statistically significant, as tested by ANOVA and Student t test. Among the building construction workers, in this study, important oral lesions were not observed, despite the daily exposition to some risk factors for oral cancer.
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INTRODUCTION: A successful endodontic therapy depends on the linear measurements obtained by means of radiographs taken during odontometry and also on the application of the established working length up to the final obturation. OBJECTIVE: The aim of this study was to compare the precision of the linear measurement obtained by means of conventional radiographs and indirect digital images evaluated by the Digora 1.5 software during the different stages of endodontic treatment, as well as to evaluate the tools available on this software. METHODS: A total of 160 radiographs of single-rooted teeth were obtained from files, which were analysed and divided in 4 groups comprising odontometry, cone fit, condensation and the final obturation. Analyses of the conventional radiographs and digitized images were performed by five previuosly calibrated examiners. RESULTS: A high level of inter and intra-examiner agreement was observed through application of the Kendall coefficient and the correlation index, respectively. In relation to the results of linear measurement, the two-way variance analyses and the Tukey test revealed that, concerning the method, a statistically significant decrease was observed on the measurement obtained through the digital method when compared to the conventional radiograph (p<0,05). Moreover, the measurement presented a statistically significant difference among the different stages of endodontic treatment. Regarding interpretation of the digitized image, there was a statistically significant preference towards the Brightness and Contrast tool of the Digora 1.5 software, as evaluated through the Friedman test. CONCLUSION: The present study demonstrated that image processing by the digital method aids the radiographic interpretation and consequently the determination of reference points for the achievement of the small linear measurements of endodontic treatment. The digital image provided statistically significant smaller linear measurements than those obtained by the conventional method.
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O neurilemoma é um tumor benigno raro de origem neuroectodérmica que pode acometer a boca, ondetem notada predileção pela língua. Devido às suas características clínicas e de desenvolvimento, é umacondição que pode passar desapercebida pelo paciente durante anos até atingir maiores tamanhos e confundiro próprio clínico por mimetizar outras lesões. O objetivo do presente artigo é salientar os principaisaspectos inerentes ao diagnóstico e tratamento dos neurilemomas, além de relembrar suas peculiaridadesclínicas e microscópicas, por meio da ilustração de um caso clínico
Neurilemoma is a rare benign tumor of neural origin that can affect the oral cavity, where it has predictionfor the tongue. Due to its clinical and development characteristics, it?s a condition that might to beunperceivable by the patient during many years until to reach larger sizes and to confuse the own dentistfor disguise of other lesions. The aim of the present paper is to point out the most important inherent aspectsto the diagnosis and treatment of the neurilemomas, besides remember its clinical and microscopicfeatures, through the illustration of a clinical case
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The aim of this cross-sectional study was to determine the oral health condition in a Japanese population aged 40 to 79, in Bauru, Brazil as well as its association with the occurrence of diabetes mellitus and impaired glucose tolerance. It involved 530 subjects, from both sexes. All persons of first generation (Issei) and a random sample of one third of second generation (Nisei) were submitted to a home interview. A clinical examination, oral glucose tolerance test, and examination of oral health conditions took place at the Hospital of Rehabilitation of Craniofacial Anomaly - USP. The data were processed by Epi-Info program and 22.9% of the individuals presented diabetes mellitus (group I), 15.1% impaired glucose tolerance (group II), and 61.9% were considered normoglycemics (group III). The percentage of edentulous subjects was 45.9% for the total sample, and values of 58.4%, 46.7%, and 41.2% were observed for groups I, II, and III, respectively. Among the edentulous subjects, no one showed necessity of making a total prothesis. These data indicate that tooth loss showed significant association with the occurrence of diabetes mellitus, but there was no significant association with glucose intolerance.
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O Efeito do álcool sem associação ao tabaco vem sendo estudado; contudo, os mecanismos pelos quais o álcool exerce o seu efeito carcinogênico não estão completamente esclarecidos. Evidências sugerem que o efeito do álcool esteja relacionado principalmente à exposição tópica, que altera membranas celulares e aumenta a permeabilidade ao tabaco. É proposto também que o efeito do álcool seja modulado por polimorfismos de genes que codificam enzimas para o metabolismo do etanol, do folato e reparo do DNA. O mecanismo de atuação do álcool também está realcionado a um efeito genotóxico do acetaldeído, o principal metabólito do etanol, alteração no metabolismo dos retinóides, deficiências nutricionais e efeitos sistêmicos. Porém, há uma grande dificuldade na avaliação do efeito do álcool, devido à falta de exatidão das histórias do consumo, dos tipos de bebidas, suas concentrações e quantidades, alterando os resultados dos estudos. Este trabalho se propõe a discutir os principais mecanismos de atuação do álcool que poderão promover o desenvolvimento do câncer oral, e nortear o cirurgião-dentista quanto à sua prevenção.
The chronic and excessive alcohol intake is associated with an increased risk for developing oran cancer, which has tobacco and alcohol as risks factors. Nevertheless, the sole effect of alcohol, not associated with tobacco has been related to the development of oral cancer. However, the exact mechanism by which alcohol may exert this effect is not clear. Evidence suggests that the effect of alcohol is related, mainly, to the topic exposure, which promotes modifications in cell membranes and increase in the permeability for carcinogenic agents, such as tobacco. It has also been suggested that the effect of alcohol is modulated by polymorphisms in genes encoding enzymes for ethanol metabolism, folate metabolism and DNA repair. The mechanism of alcohol performance is related to the existence of acetaldehyde genotoxic effect, changes in retinoid metabolism, nutritional deficiencies and systemic effects. Yet, there still exists a vast difficulty in evaluating the alcohol effect, mainly due to the lack of exactness description of alcohol consumption, type of alcoholic beverages, concentration and amount of alcohol, which, therefore, disturb the study data. This study aims at explaining the main mechanisms by which alcohol acts in developing oral cancer, and guiding the general dentist to prevent this cases.
Assuntos
Acetaldeído , Consumo de Bebidas Alcoólicas , Bebidas Alcoólicas , Alcoolismo , Neoplasias BucaisRESUMO
The aims of this study were to evaluate the quality of indirect digitized radiographic images taken during endodontic procedures and to compare the measurements recorded with this technique to those obtained from conventional radiographs. Two-hundred conventional periapical radiographs taken at the undergraduate Endodontics Clinic of the Dental School of Bauru were digitized. The conventional and indirect digitized images were compared by three examiners as to the quality and accuracy of the measurements recorded during endodontic treatment, in canal length determination, gutta-percha adaptation, lateral condensation and final obturation. The conventional radiographs were observed on a film viewer, surrounded by a dark card, and measured with magnifying glass and a millimeter ruler; the indirect digitized images were evaluated on the Digora® for Windows software, with free utilization of the bright/contrast tool. Unlike the conventional radiographic images, all indirect digitized images were considered as having a high quality. The distance between the filling material and the root apex was 0.117 mm larger, on average, for the Digora® system (p<0.01). The measurements achieved by the investigated radiographic methods were clinically similar and they are thus equivalent. Changes in brightness and contrast of the images using Digora®software improved the diagnosis.
Assuntos
Humanos , Cavidade Pulpar , Tratamento do Canal Radicular , Intensificação de Imagem Radiográfica/métodos , Radiografia Dentária Digital/métodos , Guta-Percha/uso terapêutico , Processamento de Imagem Assistida por Computador/métodos , Tecido Periapical , Radiografia Interproximal/métodos , Materiais Restauradores do Canal Radicular/uso terapêutico , Obturação do Canal Radicular/métodos , Preparo de Canal Radicular/métodos , Software , Ápice Dentário , Filme para Raios XRESUMO
O objetivo da presente pesquisa foi avaliar, comparativa mete, as medidas lineares em radiografias panorâmicas obtidas no programa Planimp, desenvolvido para planejamento pré-cirúrgico em implantes, com as obtidas pelo método manual, utilizando um paquímetro digital. A amostra constou de 50 radiografias panorâmicas de pacientes edêntulos, nas quais foram marcados pontos de referência para delimitar 14 distâncias anatômicas em cada radiografia. As radiografias foram digitalizadas por meio de um scanner HP Scanjet 4C/T (Hewllett Pa ck a rd). As mensurações lineares das distâncias anatômicas foram realizadas pelo método manual (paquímetro digital) e pelo método digital (Planimp). Os dados obtidos foram submetidos à análise estatística por meio do teste de variância, com nível de significância de 5 por cento. Esta análise estatística mostrou que não houve diferença significante entre as medidas manuais e digitais. A partir dos resultados concluiu- se que o programa Planimp apresentou desempenho adequado para a calibração da imagem radiográfica, bem como para a mensuração de distâncias lineares.
The present study evaluated the linear measurements on panoramic radiographs obtained in image software for presurgical implant planning (Planimp) compared to the manual technique using a digital caliper. The sample comprised 50 panoramic radio graphs of edentulous patients, on which reference points were traced for delineation of 14 anatomical dimensions on each radiograph. The radiographs were digitized with a HP Scanjet 4C/T scanner (Hewllett Packard). Linear measurements of the anatomical dimensions were achieved by the manual method (digital caliper) and digital method (Planimp software). The data achieved were submitted to statistical analysis of variance, at a significance levelof 5 percent. This statistical analysis has not demonstrate any significant difference between the manual and digital measurements. The results allowed the conclusion that the Planimp software displayed proper performances for calibration of the radiographic image andfor measurement of linear dimensions.