Programa de Pós-graduação em Odontologia

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Análise das relações de poder na política nacional de saúde bucal: o dito e o visto
(Universidade Federal de Goiás, 2008-04-08) ANDRADE, Flávia Reis de; MARCELO, Vânia Cristina; http://lattes.cnpq.br/6650368201862218
In order to consolidate the principles underlying the Brazilian Unified Health System (Sistema Único de Saúde SUS) and with the aim of acting on evidence arising out of epidemiological research in dental health, the Ministry for Health decided to structure the National Policy for Dental Health (NPDH). This study sets out to analyze the power relationships in the drawing up of the NPDH. It is a descriptive study which uses the qualitative method as its approach. The data was obtained through individual semi-structured interviews with 15 participants. The content analysis technique was used for the interpretative examination of the material transcribed. The following categories emerged: participant actors, type of participation, initial outline, (re)discussion lists, political context, present impasses and perspectives. The participant actors were divided into two groups: individual and collective. The former, a coherent group, was made up of people who identified with the victorious political project of the 2002 presidential elections, and who had undoubtedly struggled to build the SUS. It was the task of the second group to give approval to what the first had expounded. The interviewees were influential in the shaping of the NPDH, both through the research they undertook (academy) and through the movements in which they participated (services, militancy). It is impossible to define precisely the moment when the drawing up of the NPDH started, as it was a slow process taking place over at least a quarter of a century. The most visible milestone for the beginning of the broad official and unofficial debates which outlined the Policy, was the result of a series of reflections starting with the Movement for Sanitary Reform. Thus, the NPDH is made up of a set of deliberations arising out of different moments of discussion, but especially the meeting held in the Municipality of São Paulo, following on the election results of Luiz Inácio Lula da Silva s campaign for Presidency of the Republic in 2002. This meeting defined the proposal presented to the members of the Governmental Transition Commission and it marked the beginning of a period of intense normative work by the Health Ministry s Advisory Commission to the National Coordination of Dental Health. This resulted in the drawing up of a document entitled Guidelines on the National Policy for Dental Health , ratified by the 3rd National Conference on Dental Health. The NPDH now presents symptoms of growth as well as those of early degeneration. As potential internal weaknesses, one can cite the improper management of financial resources in particular and the growing tendency of the NPDH to be characterized as a provider of specialized odontological services. However, the greatest preoccupation is that the people who did not in fact participate in drawing up the Policy (for lack of opportunity) are today the pillars of its consolidation. Those who try to understand the process of drawing up the NPDH frequently come up against the nouns group and consensus. This therefore shows a clear approximation to the Arendtian concept of power. However, the present preoccupying indexes of the internal degeneration of the Advisory Commission would point towards another form of power in the implantation phase of the National Policy for Dental Health.
Reabsorção radicular apical em decorrência do tratamento ortodôntico detectada por meio de tomografia computadorizada de feixe cônico
(Universidade Federal de Goiás, 2012-02-17) CASTRO, Iury Oliveira; ESTRELA, Carlos; http://lattes.cnpq.br/3611967334176683
Objective: To determine the frequency of apical root resorption in different tooth groups after the end of orthodontic treatment, detected by cone beam computed tomography. Methodology: Images of cone beam computed tomography of 30 patients who had Class I malocclusion and crowding were obtained before and after orthodontic movement. The treatment with fixed appliances was developed based on the Roth prescription. A total of 1256 dental roots were evaluated based on the measurement of linear length between root apex and incisal/cusp. It was an epidemiological, prospective, longitudinal and intra individual study. Results: The mean age of patients was 13 years, 11 were male and 19 female. One hundred percent of the patient presented teeth with apical root resorption, 46% of the roots avaluated was affected. The teeth showed higher extent of apical root resorption were upper lateral incisors, lower lateral, upper central, lower central, upper and lower first molars (p <0.05). By analyzing the roots individually, there was a high frequency of apical root resorption in maxillary central incisors (73%), maxillary lateral incisors (73%), mandibular central incisors (72%), mandibular lateral incisors (70%) and distal roots of mandibular first molar (63%). There was a low frequency of apical root resorption in the buccal roots of the maxillary second premolar (17%), distovestibular and palatine roots of maxillary second molar (18%) and distal roots of mandibular second molar (20%). The results showed that there was no association between frequency of resorption and gender (p> 0.05). The number of resorption did not vary with age when evaluated at age 11 to 16 years (p> 0.05). Conclusion: The apical root resorption was detected in 46% of the roots of teeth submitted to orthodontic treatment, diagnosed by cone beam computed tomography. The most affected teeth were central incisors, lateral and first molars.
Estudo comparativo da densidade radiográfica de diferentes cimentos odontológicos restauradores à base de ionômero de vidro.
(Universidade Federal de Goiás, 2007-10-05) MELO, áureo Honorato e; SOUZA, João Batista de; http://lattes.cnpq.br/0642108682158061; FREITA, Gersinei Carlos de; http://lattes.cnpq.br/8530071658595530
Glass ionomer cements are generally represented by a combination of a powder, which main components are alumina (Al2O3 ), silica (Si2O3 ) and calcium fluoride (CaF2 ), and a liquid, which is an aqueous solution basically compound of polyacrilic acid and tartaric acid. Its excellent features have been described since the 1960 s, and some of these are the radiopacity and fluoride release. The aim of this work is to study the radiopacity measured by radiographic exposures of the following restorative glass ionomers: Vidrion R (SS White Manufacturing Ltd, Gloucester, England); Chemfil (DENTSPLY DeTrey, Konstanz, Germany); Vitro Molar (DFL); Maxxion R (FGM Dental products Ltd); Riva self cure powder and liquid and Riva self cure in capsules (Riva SC, SDI Ltd, Bayswater, Australia) and to make comparisons among them. Then, different radiographic densities from an aluminum scale were attained and they could be compared and used in the clinical work. The specimens were made using standard glass plates (25,4 x 76,2 x 1,0 mm) manufactured by Global Trade Technology and they were perforated by a 5mm bur (number 5, Black & Decker, Brazil) especially used for glass. For the radiopacity evaluation, the samples were radiographed using three different types of films, which are the following: Kodak Dental Intraoral ESpeed Film (EASTMAN KODAK Co., Rochester, N.Y.); Contrast DFL DV-58 (DFL Ltd); and Agfa Dentus M2 Confort (Heraeus Kulzer Inc.). A 99,5% pure aluminum step wedge and a Gnatus XR 6010 X-ray equipment were utilized in this work. The data were collected by 5 examiners, who were properly calibrated, and analyzed by Friedman and Kolmogorov-Smirnov tests. The results showed no statistical differences among the averages of each examiner comparing the cements and the films. And the results also showed that all the cements present radiographic density average values below 1.
Comparação do comprimento de trabalho do canal radicular usando tomografia computadorizada de feixe cônico, radiografia periapical e localizador apical eletrônico
(Universidade Federal de Goiás, 2012-02-13) MORAIS, André Luiz Gomide de; ALENCAR, Ana Helena Gonçalves de; http://lattes.cnpq.br/2039898015468283; ESTRELA, Carlos; http://lattes.cnpq.br/3611967334176683
Introduction Strategies to obtain the working length to prepare and fill the root canals has been relevant theme of discussion in endodontics. The purpose of this study was to compare in vivo the canal root working length measures determined by cone beam computed tomography (CBCT) images with the ones obtained by using periapical radiograph and electronic apex locator. Methods The root canal working lengths of 30 single-rooted teeth from 19 patients whose diagnosis was apical periodontitis were evaluated. Initial periapical radiographs for diagnosis and treatment planning, employing the parallelism technique, were taken. CBCT images were acquired with i-CAT system (aiming of diagnosing the cases of apical periodontitis that showed to be complex and doubtful) and measured with specific function of i-CAT software. The coronal opening was made, the root canals were irrigated with sodium hypochlorite solution 2.5%, being performed the exploration and initial emptying of root canal. After, the preparation of the inlet orifice and of the cervical root third was carried out . The minor foramen was located using Root ZX® locator by advancing a stainless steel K-file that best suited the root canal, according to the manufacturer´s instructions. The radiographic measurement was made by advancing a stainless steel K-file in the root canal, until its tip was 1.0 mm from the root apex (determined from the measures obtained by the electronic ape locator). These 3 working length were tabulated and compared. Kruskal-Wallis test was used to analyze the differences between working lengths methods. The significance was set at α=5%. Results The mean values and standard deviations for working length determination by electronic apex locator, periapical radiograph and CBCT images were 21.5 ± 3.1, 21.32 ± 3, 21.4 ± 2.7, respectively. Significant differences were not verified statistically (P>0.05). Conclusions CBCT images working length determination showed to be as similar as the determinations obtained by using periapical radiograph and electronic apex locator.
Integralidade e saúde bucal na percepção de participantes dos movimentos sociais do SUS
(Universidade Federal de Goiás, 2007-10-19) NOVAIS, Tatiana Oliveira; MARCELO, Vânia Cristina; http://lattes.cnpq.br/6650368201862218
Integrality is a principle of the Brazilian Unified Health System (SUS) defended by the sanitary reform movement. It is a polysemic and democratic term for it considers several perceptions. For that reason, other kinds of knowledge were included in this paper in addition to the scientific one. Oral health can also be understood in various ways, since its limited meaning of mouth until a collective notion regarding health promotion precepts. Therefore it is possible to discuss integrality focusing on oral health. This research aims to identify possibilities for action seeking integrality for oral health in SUS and in social movements, according to their participants perceptions. Key people in knowledge building were selected to be interviewed, connecting scientific and popular knowledge, SUS and social movements participants. The methodology used was qualitative research and content analysis. The findings were divided into four categories: different meanings of integrality, perceptions of oral health in SUS, perceptions of oral health in social movements and possibilities for actions. Each category was then subdivided into subcategories. The main conclusions about the action possibilities are those related to re-integration, allowing a re-totalizing paradigmatic posture of the reality, the use of problem based learning strategies both in professional forming and in permanent education of SUS workers, building public policies and health models of attention aiming the integrality. Although health promotion was not described as a specific category, it undergoes most possibilities for actions mentioned, acting as a structural framework.
Sítios implantáveis da maxila e mandíbula: correlação entre aspectos clínico-radiográficos e histomorfométrico-moleculares.
(Universidade Federal de Goiás, 2011-03-04) PEREIRA, Andrea de Castro; BATISTA, Aline Carvalho; http://lattes.cnpq.br/0199082642322002; RIBEIRO-ROTTA, Rejane Faria; http://lattes.cnpq.br/9466795079344876
The study of bone microarchitecture and its molecular aspects may provide new information for better understanding of "bone quality". Histomorphometry is a recommended reference method for bone-dimensional analysis. At the molecular level, possible changes in the process of resorption and bone formation has not been studied in different patterns of bone "normal." Objective: To analyze the correlation between clinical, radiographic and histomorphometric bone-molecular sites for dental implants in humans. Methods: The sample consisted of 44 sites of 32 volunteers implantable. These sites were classified according to three different methods: a classification based only on periapical and panoramic images (PP), the classification of Lekholm and Zarb, based on methods of diagnostic imaging in conjunction with the tactile perception of the surgeon during surgery and classification of Lindh. The bone specimens were removed with the use of trephine during the first drilling site for placement of dental implants. The samples were subjected to staining with hematoxylin-eosin and histomorphometric analysis to obtain the following histomorphometric parameters: trabecular thickness (Tb.Th), trabecular number, bone volume fraction (BV / TV), trabecular bone surface area by bone volume (BS / BV), bone surface fraction and trabecular separation (Tb.Sp). We also made the technique for analysis of proteins immunoistoquímica RANK, RANKL, OPG and osteocalcin (OC) in samples of bone tissue. Results: Rankings PP & L and Z correlated with BV / TV, BS / BV, Tb.Th and Tb.Sp. The classification of Lindh did not correlate with any histomorphometric parameter. L & Z show differences between types when compared to bone BV / TV, BS / BV, Tb.Th and Tb.Sp. We found a weak correlation between ratings PP / L & Z and the expression of regulators of bone metabolism (RANK, RANKL, OPG and OC). Conclusions: It may be that the subjective ratings conculir types of bone are influenced by aspects of histomorphometry and the regulatory molecules of bone remodeling seems not to exert influence in the morphology of the maxilla and mandible.
Comparação entre imagens periapicais e de tomografia computadorizada volumétrica na avaliação de perdas ósseas alveolares
(Universidade Federal de Goiás, 2010-02-26) VASCONCELOS, Karla de Faria; ESTRELA, Carlos; http://lattes.cnpq.br/3611967334176683; SILVA, Maria Alves Garcia Santos; http://lattes.cnpq.br/8760691456576488
Interproximal and periapical radiographs are most suited to periodontal evaluation, but are limited when it comes to diagnosis of bone condition. In dentistry, cone beam computed tomography (CBCT) has been most frequently used when a threedimensional evaluation is needed. The aim of this study was to compare periapical radiographs and volumetric CT imaging in detecting and localizing alveolar bone loss, by comparing linear measurements of the height, depth and width of the defects and identifying combined bone defects in tomographic images. The images were selected from a secondary database containing images of patients referred for periodontal evaluation. The sample consisted of 51 sites showing both horizontal and vertical bone loss, assessed by three previously-trained examiners. The results showed that there were no statistically significant differences between the imaging methods compared in terms of identification of the pattern of bone loss. However, there were differences between the two methods when the distance between the cementoenamel junction (CEJ) and the alveolar crest (AC) was measured. When the distance between the CEJ and the deepest point and the width of the defect were measured, the methods showed no statistically significant difference. In this study, 30.76% of the 39 teeth evaluated had combined bone defects. It was concluded that the two methods differ when detecting the height of the alveolar bone crest, but present similar views of the depth and width of bone defects. CBCT was the only method that allowed for an analysis of the buccal and lingual/palatal surfaces and an improved visualization of the morphology of the defect.

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