Artigos Científicos - FOUFPA/ICS
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Navegando Artigos Científicos - FOUFPA/ICS por Periódicos "Revista de Odontologia da UNESP"
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Item Acesso aberto (Open Access) Analysis of the mental foramen using cone beam computerized tomography(Universidade Federal do Pará, 2015-08) SAITO, Kunihiro; ARAÚJO, Ney Soares de; SAITO, Miki Taketomi; PINHEIRO, João de Jesus Viana; CARVALHO, Pedro Luiz deIntroduction: Knowledge of the anatomical structures located in the region between the mental foramina is of critical importance in pre-operative planning. Objective: To evaluate the position of the mental foramen relative to the apices of the teeth and the distance to the edges of the mandible, using cone beam computerized tomography. Material and method: One hundred cone beam computerized tomographs of the mandible were evaluated; the tomographs were taken using a single tomographic device. Each image chosen was evaluated repeatedly from both sides of the mandible, the position of the mental foramen, indicating the region in which the foramen was found and the measures of the mental foramen, the lingual cortex and the mandibular base. Initially, the data were analyzed descriptively. A value of p<0.05 was chosen as the level of significance. Result: Forty-two percent of the mental foramina were located in the apex of the second pre-molar. The lingual margin of the mental foramen was located, on average, 3.1mm from the lingual cortex. The lower margin of the mental foramen was located 7.25 mm above the lower edge of the mandible. Conclusion: The mental foramen was located more frequently at a level of the apices of the second pre-molars, with a distance to the lingual cortex, on average, of 3.1mm and to the base of the mandible, on average, of 7.25 mm.Item Acesso aberto (Open Access) Relationship among local and functional factors in the development of denture stomatitis in denture wearers in northern Brazil(Universidade Federal do Pará, 2014-10) GAUCH, Lurdete Maria Rocha; GOMES, Fabíola Silveira; PEDROSA, Simone Soares; ESTEVES, Renata Antunes; SILVA, Silvia Helena Marques daObjective: The aim of this study was to evaluate the relationship among functional and qualitative factors in the development of denture stomatitis (DS) (according to Newton’s classification) in acrylic-based denture wearers residents from northern Brazil. Material and method: A total of 99 patients who wore partial or total acrylic resin-based upper dentures were included in this study. The subjects completed an epidemiological data form that includes the patient’s gender, age, local factors (hygiene habits, remove denture to sleep, use of mouthwash, present condition of the denture, age of the denture) and functional factors (vertical dimension at rest, vertical dimension of occlusion, occlusion, retention, and static and dynamic stability). To detect yeasts, samples were collected from the inner surface of the dentures and from the palatal mucosa in contact with it. Subsequently, the samples were cultured on Sabouraud dextrose agar, observing macro and microscopic characteristics. Result: In the present study, we did not find any significant relationship between the gender and disease onset. Based on the Newton classification, 36.3% of the patients presented with DS and 89.0% were colonized by yeasts; of these subjects, 50% had type I lesions, 33.3% had type II lesions, and 16.6% had type III lesions. All of the qualitative and local factors, except the use of mouthwash, were clinically relevant to the development of disease. Conclusion: Denture stomatitis in denture users in northern Brazil was multifactorial, involving local, functional and microbiological factors.