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Acta Odontológica Latinoamericana: AOL

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https://www.readbyqxmd.com/read/28688185/methodological-aspects-in-the-study-of-periodontal-breakdown-in-rats-influence-of-the-presence-and-time-of-ligature
#1
Juliano Cavagni, Luise Seibel, Eduardo J Gaio, Cassiano K Rosing
The aim of the present work was to evaluate the effect of different times on alveolar bone loss (ABL) and whether the presence of ligature on one side affects ABL on the contralateral site. This is a secondary analysis of databases from studies conducted at the Federal University of Rio Grande do Sul. Included studies used ligature-induced periodontal disease in rats. In order to be included, the studies were required to have a control group without any ligatures and an intra-group control. Three studies were included, which used different time periods: 2 weeks with ligature and 8 weeks without ligature; 5 weeks with ligature and 17 weeks without ligature; 22 weeks with and without ligature...
April 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28688184/root-surface-temperature-variation-during-mechanical-removal-of-root-canal-filling-material-an-in-vitro-study
#2
Martín García-Cuerva, Lucía Horvath, Laura Pinasco, Verónica Ciparelli, Ariel Gualtieri, Ana C Casadoumecq, Pablo Rodríguez, Carlos Gonzalez-Zanotto
The aim of this study was to analyze in vitro temperature changes on the outer surface of the dental root during mechanical filling removal procedures. Thirty recently extracted single-rooted lower premolars were cut transversally at 16 mm from the apex in order to standardize sample length. Endodontic treatment was performed on them. The filling material was subsequently removed using Gates Glidden (G1, G2, G3); Peeso (P1, P2, P3) and PostecPlus FRC (FRC) reamers while temperatures were measured on the outer surface using a digital device with thermocouple at 0, 2, 4, 6, 8, 10 and 15 seconds...
April 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28688183/evaluation-of-ph-and-calcium-ion-diffusion-from-calcium-hydroxide-pastes-and-mta
#3
María Del M Sáez, Gabriela L López, Diana Atlas, María L de la Casa
The aim of this ex vivo study was to evaluate changes in pH and calcium ion diffusion through root dentin from calcium hydroxide (Ca (OH) 2) and mineral trioxide aggregate (MTA) pastes at 7, 30 and 60 days; and the relationship between pH and ion diffusion. Thirty-two human premolars were used. Crowns were sectioned and root canals instrumented and filled in with the following preparations: 1) Ca(OH) 2 + distilled water (n=7); 2) Ca(OH) 2 + 0.1% chlorhexidine gluconate (n=7); 3) MTA + distilled water (n=7); 4) MTA + 0...
April 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28688182/analysis-of-the-adverse-events-reported-to-the-office-of-the-clinical-director-at-a-dental-school-in-bogot%C3%A3-colombia
#4
María F Huertas, Juliana Gonzalez, Sandra Camacho, Ana L Sarralde, Adriana Rodríguez
Dentistry is interested in identifying and controlling adverse events, understood as involuntary injuries to the patient during dental care. The aim of this study was to analyze the adverse events reported to the Office of the Clinical Director at the School of Dentistry at Pontificia Universidad Javeriana (Colombia) during 2011-2012. It was an observational, descriptive study that evaluated 227 dental clinical records of patients who filed a complaint with the Office of the Clinical Director. Of these, 43 were adverse events and were used as the basis for this study...
April 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28688181/surface-detail-reproduction-and-dimensional-accuracy-of-molds-influence-of-disinfectant-solutions-and-elastomeric-impression-materials
#5
Ricardo D Guiraldo, Sandrine B Berger, Ronaldo Mt Siqueira, Victor H Grandi, Murilo B Lopes, Alcides Gonini-Júnior, Rodrigo V Caixeta, Rodrigo V de Carvalho, Mário Ac Sinhoreti
This study compared the surface detail reproduction and dimensional accuracy of molds after disinfection using 2% sodium hypochlorite, 2% chlorhexidine digluconate or 0.2% peracetic acid to those of molds that were not disinfected, for four elastomeric impression materials: polysulfide (Light Bodied Permlastic), polyether (Impregum Soft), polydimethylsiloxane (Oranwash L) andpolyvinylsiloxane (Aquasil Ultra LV). The molds were prepared on a matrix by applying pressure, using a perforated metal tray. The molds were removed following polymerization and either disinfected (by soaking in one of the solutions for 15 minutes) or not disinfected...
April 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28688180/effect-of-silver-diamine-fluoride-sdf-on-the-dentin-pulp-complex-ex-vivo-histological-analysis-on-human-primary-teeth-and-rat-molars
#6
Glenda Rossi, Aldo Squassi, Patricia Mandalunis, Andrea Kaplan
The aim of this study was to determine the effect of SDF on the dentin-pulp complex using two models: teeth after SDF application (ex vivo) and experimental animal molars. A descriptive study was performed using two models. In the first model, primary teeth (ex vivo) with enamel-dentin caries, without pulp involvement and previously treated with 38% SDF, were evaluated by means of two techniques: (a) Scanning Electron Microscopy (SEM) and energy-dispersive X-ray detector (EDS) to determine qualitative and quantitative composition, and (b) brightfield optical microscopy (OM) after decalcification...
April 2017: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383607/efectiveness-of-the-waveone-and-protaper-d-systems-for-removing-gutta-percha-with-or-without-a-solvent
#7
Ana Pm Colombo, Carlos E Fontana, Aline Godoy, Alexandre S De Martin, Augusto S Kato, Daniel Gp Rocha, Rina A Pelegrine, Carlos Es Bueno
Endodontic retreatment requires complete removal of the filling material and access to the apical foramen. The purpose of this study was to evaluate the effectiveness of the Wave One reciprocating system and compare it to the ProTaper D rotarysystem, with or without the use of a solvent, in removing filling material from root canals. The time required for each filling removal technique employed was also determined and compared. Forty extracted human mandibular premolars with a single, straight, flattened canal were prepared and filled...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383606/generalized-aggressive-periodontitis-microbiological-composition-and-clinical-parameters-in-non-surgical-therapy
#8
María M Usin, Sandra M Tabares, Julieta Menso, Estela R de Albera, Adela Sembaj
The aim of this study was to determine the variations in periodontal parameters and microbiological composition in periodontal pockets at the baseline and 3 and 6 months post treatmentin patients with Generalized Aggressive Periodontitis(GAP) undergoing non surgical periodontal treatment combined with chlorhexidine and systemic antibiotics. Medical and dental history was taken from 10 subjects, average age 30.6±2.7 years, diagnosed with GAP. A non surgical periodontal treatment combined with 0.12% chlorhexidine, 875 mg amoxicillin and 500 mg metronidazole every 12 hours for ten days was conducted...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383605/evaluation-of-fracture-torque-resistance-of-orthodontic-mini-implants
#9
Fernando Dalla Rosa, Paola Fp Burmann, Henrique C Ruschel, Ivana A Vargas, Paulo F Kramer
This study sought to assess the fracture torque resistance of mini-implants used for orthodontic anchorage. Five commercially available brands of mini-implants were used (SIN®, CONEXÃO®, NEODENT®, MORELLI®, andFORESTADENT®). Ten mini-implants of each diameter of each brand were tested, for a total 100 specimens. The mini-implants were subject to a static torsion test as described in ASTMstandard F543. Analysis of variance (ANOVA) with the Tukey multiple comparisons procedure was used to assess results...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383604/microbiological-contamination-in-digital-radiography-evaluation-at-the-radiology-clinic-of-an-educational-institution
#10
Cristiana P Malta, Naiana Nl Damasceno, Rosangela A Ribeiro, Carolina Sf Silva, Karina L Devito
The aim of this study was to evaluate the contamination rate of intra and extraoral digital X ray equipment in a dental radiology clinic at a public educational institution. Samples were collected on three different days, at two times in the day: in the morning, before attending patients, and at the end of the day, after appointment hours and before cleaning and disinfection procedures. Samples were collected from the periapical X-ray machine (tube head, positioning device, control panel and activator button), the panoramic X- ray machine (temporal support, bite block, control panel and activator button), the intraoral digital system (sensor), and the digital system computers (keyboard and mouse)...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383603/mucoepidermoid-carcinoma-of-the-salivary-glands-a-retrospective-study-of-51-cases-and-review-of-the-literature
#11
Janet O Guevara-Canales, Rafael Morales-Vadillo, Guillermo Guzmán-Arias, Carlos E Cava-Vergiú, Henry Guerra-Miller, Jaime E Montes-Gil
The aim of this study is to present the casuistic of mucoepidermoid carcinoma of salivary glands in patients diagnosed at "Dr. Eduardo Cáceres Graziani" National Institute for Neoplastic Diseases, Lima, Perú. From January 2002 to December 2012, 51 cases were diagnosed as mucoepidermoid carcinoma. The number of female patients was higher, with 28 cases (54.9%), and regarding age distribution, 33.3% of the patients were under 30 years old. Pain was one of the main symptoms, and 74.5% of the mucoepidermoid carcinomas were located in the parotid gland...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383602/fungal-contamination-and-disinfection-of-dental-chairs-teresina-piaui-brazil
#12
Antônio Iv de Almondes, Jhonatta Op de Araújo, Larissa Mendes de Sirqueira Amaral, Renandro C Reis, Jhonatas Cs Porto, João Batista Teles, Thiago L Monte, Iraci de Ms Noleto, Tanit C Santos, Ivonizete P Ribeiro, Mitra Mobin
The aim of this study was to analyze fungal contamination on dental chairs at the clinic of a Higher Education Institution in TeresinaPI, Brazil, and to evaluate the effectiveness of different disinfectants: 70% alcohol and 1% sodium hypochlorite. We selected the five sites with most contact between patient and chair: headrest, backrest, armrests, seat and foot rest. Samples were collected from these sites on 14 chairs and inoculated in agar Sabouraud culture medium containing chloramphenicol. Pathogenic fungi were isolated from all sampling sites on the chairs...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383601/temporomandibular-joint-involvement-in-rheumatoid-arthritis-patients-association-between-clinical-and-tomographic-data
#13
Patrícia Cf Cordeiro, Josemar P Guimaraes, Viviane A de Souza, Isabela M Dias, Jesca Nn Silva, Karina L Devito, Leticia L Bonato
Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by chronic inflammation and synovial hyperplasia, which usually affects multiple joints. The temporomandibular joint (TMJ) becomes susceptible to the development of changes resulting from RA. The aim of this study was to evaluate the presence of TMD and degenerative bone changes in TMJ in patients diagnosed with RA (rheumatoid arthritis). The Research Diagnostic Criteria for Temporomandibular Disorders (RDC/ TMD) questionnaire was used for clinical evaluation of the TMJ and for TMD classification of 49 patients of both sexes and all ages...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383600/perception-of-discomfort-during-injection-and-the-need-for-supplemental-anesthesia-in-the-intraosseous-technique-using-4-articaine
#14
Adel Martínez Martínez, María Del Pilar Lujan Pardo, Jonathan Harris Ricardo
The authors conducted an experimental study to determine patient perception of discomfort during injection and the need for supplemental anesthesia using the intraosseous technique with 4% articaine with 1:100,000 epinephrine in patients with symptomatic pulpitis in mandibular molars. At different clinical sessions, researchers used 4% articaine with 1:100,000 epinephrine to apply intraosseous injection (Group 1) or inferior alveolar nerve block (Group 2). Each technique was applied in 35 patients. In each group, the need for additional anesthesia was determined and patient discomfort during injection was assessed with a Visual Analogue Scale (VAS) test...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383599/assessment-of-knowledge-on-temporomandibular-disorders-among-mexican-dental-educators
#15
Irene A Espinosa, Edgar M Pérez, Yoly M Gonzalez, Alejandro Corona
Temporomandibular disorders (TMDs) is an umbrella term that embraces a group of musculoskeletal and neuromuscular conditions that involve the temporomandibular joints, muscles and all associated tissues. Because of the relatively high number of patients with TMDs in the population, instruction in this area of health care should be included on all dental curricula. Although levels of knowledge among dentists have been evaluated in several countries, they have not been in Mexico. This study evaluates the dental faculty's range of knowledge about TMD at five dental schools in Puebla, Mexico...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/28383598/genetic-relatedness-of-peri-implants-and-buccal-candida-albicans-isolates-determined-by-rapd-pcr
#16
Adriana M Bertone, Alcira C Rosa, Natalia Nastri, Hector D Santillán, Yamila Ariza, Cristina A Iovannitti, Virginia M Jewtuchowicz
Molecular techniques have been used in recent studies to identify a wide range of potential bacterial pathogens in periimplant pockets of the oral cavity. However, the prevalence and molecular epidemiology of yeasts and species distribution related to periimplantitis are as yet unknown. The aim of this study was to determine the prevalence and distribution of yeasts in periimplant biofilm and to study genetic relatedness of Candida albicans. Yeasts recovered from periimplant biofilm samples (n=89) and buccal samples (n=120) were studied in 40 immunocompetent nonsmoking patients who visited the dental clinic of the Asociación Implantodontológica Argentina, Buenos Aires, Argentina, and had received oral rehabilitation with implants for more than five years...
December 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/27731489/influence-of-oral-health-on-quality-of-life-in-pregnant-women
#17
Suzely As Moimaz, Najara B Rocha, Artênio Ji Garbin, Cléa As Garbin, Orlando Saliba
This study evaluated the relationships between oral conditions and oral health-related quality of life (OHRQoL), as well as related factors. A crosssectional study was performed on 119 postnatal women who had sought prenatal care during pregnancy in the public health system of São Paulo State, Brazil. The women received oral clinical exams and were interviewed using the questions on the OHIP14. A second survey with information about their socioeconomic status, pregnancy and health habits was administered. The highest OHIP14 scores were found in the area of physical pain, with an average score of 10...
September 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/27731488/salivary-protein-characteristics-from-saliva-of-carious-lesionfree-and-high-caries-adults
#18
Ramiro J Castro, Raúl Herrera, Rodrigo A Giacaman
It has been argued that specific salivary proteins could have a protective effect against caries, but data from the many available studies are rather contradictory. The purpose of this study was to analyze whether there is a relationship between protein concentration, electrophoretic profile and concentration of salivary IgA and the presence or absence of caries in adults. Adults with high caries activity (HC) and without caries lesions (CF), assessed by ICDAS criteria, were asked to provide unstimulated saliva samples...
September 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/27731487/sequential-administration-of-alendronate-and-strontium-ranelate-histomorphometry-and-bone-biomechanics-in-ovariectomized-animals
#19
Diego H Díaz, Julieta A Rodas, Clarisa E Bozzini, Patricia M Mandalunis, Natalia D Escudero
Bisphosphonates are the first choice therapy for the pharmaco logical treatment of osteoporosis. Following reports of cases of bisphosphonaterelated osteonecrosis of the jaw and atypical femur fracture, the safety of longterm use of bisphosphonates has been evaluated, resulting in the proposal of strontium as an alternative drug. No experimental study using a sequential administration design has been reported to date. Hence, the aim of this study was to evaluate the effect on bone tissue of ovariectomized rats of administration of alendronate followed by strontium ranelate...
September 2016: Acta Odontológica Latinoamericana: AOL
https://www.readbyqxmd.com/read/27731486/masking-ability-of-opaque-thickness-on-layered-metal-ceramic
#20
Cari M Pieper, Renato Fa Waldemarin, Guilherme B Camacho
This study evaluated the masking ability of two opaques applied in different thicknesses. Eighty NiCr metal discs 16 mm in diameter and 1.0 mm thick were prepared. The disks were divided into 8 groups (n = 10). Ceramic opaque in paste (groups 1 to 4) or powder (groups 5 to 8) presentations were applied. They were machined with aluminum oxide burs to the following thicknesses: G1 and G5 = 0.10 mm; G2 and G6 = 0.15 mm; G3 and G7 = 0.20 mm and G4 and G8 = 0.30 mm. Dentin ceramic 0.7 mm thick was applied over these discs, sintered and glazed according manufacturer's instructions...
September 2016: Acta Odontológica Latinoamericana: AOL
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