Navegando por Autor "Fernandes, Karina Gonzalez Camara"

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Avaliação de diferentes concentrações de água ozonizada na desinfecção de canais radiculares contaminados: estudo in vitro
(Universidade Brasil, 2022) Fernandes, Karina Gonzalez Camara; Garcia, Lívia Assis; Tim, Carla Roberta
In the clinical practice of dentistry, it is evident that despite technological advances, microbial agents are still the main responsible for endodontic failure. Mechanical chemical preparation, a technique used in endodontics, aims to remove necrotic tissue, microbial agents and their by-products from the root canal system. However, preparation is often not sufficient for satisfactory cleaning due to the anatomical complexity of the root canal system, which may lead to the permanence of microorganisms that may remain viable and active, interfering with the recovery process of periradicular tissues. In this way, it is necessary to search for ideal irrigating solutions that can provide better results in endodontic treatment. The aim of the present study was to evaluate and compare, in vitro, the effectiveness of different concentrations of ozonated water in the disinfection of root canals inoculated with Enterococcus Faecalis (E. Faecalis). We used 75 extracted human premolars, with a single canal, approved by the Research Ethics Committee (CEP), approval number 26629619.9.0000.5494. The teeth were sectioned and contaminated with E. Faecalis and incubated for 21 days at 37°C. Initial collections were performed with absorbent paper cones to confirm contamination. subsequently, PQM mechanical chemical preparation was performed, using mechanical instrumentation with a WaveOne® Primary file and the samples were divided into 5 groups according to the irrigating solutions (n = 15): Saline Solution Group (SS): irrigating solution was saline; 2.5% sodium hypochlorite group (NaOCl): 2.5% sodium hypochlorite irrigating solution; Ozone Group 10 (O10): the irrigating solution of ozonized water at a concentration of 10 µg/mL; Ozone Group 20 (O20): irrigating solution of ozonized water at a concentrationof 20 µg/mL; Ozone Group 30 (O30): irrigating solution of ozonized water at a concentration of 30 µg/mL. After mechanical instrumentation and irrigation, a second collection was performed with a paper cone, so the variables analyzed were the collections before and after the PQM. The main results show that the ozonated water used as an irrigating solution in the mechanical chemical preparation was effective in reducing the number of CFU Colony Forming Units at all concentrations (O10, 17,48%O20, 18,87% and O30, 32,87%) and the highest percentage of reduction was observed at the concentration of 30 μg/mL. However, it was not possible to observe a higher reduction of CFU in the groups treated with ozonated water when compared to the irrigant NaOCl. In conclusion, the ozonated water used as an irrigating solution, with emphasis on the concentration of 30 μg/mL, promoted antimicrobial action against E. Faecalis, one of the main microorganisms responsible for critical complications in endodontics, and can be proposed as an adjuvant in endodontic treatments.
O papel e a importância do cirurgião-dentista na Unidade de Terapia Intensiva
(Universidade Brasil, 2023) Bortoloz, Nathália Dias Alves; Fernandes, Karina Gonzalez Camara
Patients hospitalized in Intensive Care Units (ICU) need dental follow-up, due to their unsatisfactory oral conditions that originated before their admission or developed during the hospitalization period, since they are susceptible to oral infections and other injuries resulting from changes in the flow salivary or oral colonization by respiratory pathogens, causing risks and discomfort to critically ill patients, directly interfering with their clinical evolution and quality of life. Therefore, dental care performed by dentists within intensive care units is aimed at preventing, diagnosing and treating infectious processes of the stomatognathic system, providingrelief from pain and symptoms of various oral alterations, which interfere systemic formin the patient. It is indisputable that maintaining the patient's oral health significantly contributes to their clinical improvement and consequently reduces the use of medications and length of hospital stay. Based on this information, the present study aimed to analyze the role and importance of the dental surgeon within the ICUs. With the realization of this, the extreme need for the presence of the dentist became evident,since the studies showed that the patients treated improved their oral and systemic conditions.
Saúde bucal em pacientes com sequelas de acidente vascular cerebral AVC
(Universidade Brasil, 2022) Zequim, Francini de Souza; Fernandes, Karina Gonzalez Camara; Moreti, Lucieni Cristina Trovati