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Brazilian Oral Research

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https://www.readbyqxmd.com/read/27901210/effects-of-alveolar-bone-displacement-with-segmental-osteotomy-micro-ct-and-histomorphometric-analysis-in-rats
#1
Taegun Kim, Won Lee, Sang-Ho Baek, Sungwoon Pyo, Yoon-Ah Kook, Mohamed Bayome, Insoo Kim
The purpose of this study was to evaluate the effects of segmental osteotomy on the blood vessels and osteoclasts in rats using micro-computed tomography (micro-CT) and histomorphometric analysis. After segmental osteotomy was performed around the maxillary first molars of 36 male Sprague-Dawley rats (n = 72), the samples were divided into a control group (no displacement), 0.5 D group (0.5 mm buccal displacement) and 1.0 D group (1.0 mm buccal displacement) (n = 24/group). At 1, 2, 4 and 8 weeks after surgery, changes in the blood vessel volume were investigated using micro-CT with perfusion of radiopaque silicone rubber...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901209/effect-of-resveratrol-on-periodontal-pathogens-during-experimental-periodontitis-in-rats
#2
Fabiano Ribeiro Cirano, Renato Correa Viana Casarin, Fernanda Vieira Ribeiro, Marcio Zaffalon Casati, Suzana Peres Pimentel, Tiago Taiete, Maria Martha Bernardi
The objective of this study was to investigate the antibacterial effect of resveratrol against putative periodontal pathogens during the progression of experimental periodontitis in rats. Periodontitis was induced in rats in one of the first molars chosen to receive a ligature. Animals were assigned to one of two groups: daily administration of the placebo solution (control group, n = 12) or 10 mg/Kg of resveratrol (RESV group, n = 12). The therapies were administered systemically for 30 days, for 19 days before periodontitis induction and then for another 11 days...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901208/gastric-and-renal-effects-of-cox-2-selective-and-non-selective-nsaids-in-rats-receiving-low-dose-aspirin-therapy
#3
Marcella Goetz Moro, Paula Katherine Vargas Sanchez, Mayara Vitorino Gevert, Emeline Maria Baller, Ana Flávia Tostes, Ana Caroline Lupepsa, Sinvaldo Baglie, Gilson Cesar Nobre Franco
The consumption of low-dose aspirin (LDA) to prevent cardiovascular disease continues to increase worldwide. Consequently, the number of chronic LDA users seeking dental procedures that require complementary acute anti-inflammatory medication has also grown. Considering the lack of literature evaluating this interaction, we analyzed the gastric and renal effects caused by a selective COX-2 inhibitor (etoricoxib) and a non-selective COX-2 inhibitor (ibuprofen) nonsteroidal anti-inflammatory drug (NSAID) in rats receiving chronic LDA therapy...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901207/in-vitro-and-in-vivo-evaluation-of-nano-based-films-for-buccal-delivery-of-zolpidem
#4
Bandar Essa Al-Dhubiab
Insomnia is becoming increasingly prevalent in the world general population. Therapies used by patients include over-the-counter therapies, herbal and dietary supplements, and pharmacological or nonpharmacological treatments. Among these, zolpidem is a pharmacological treatment popularly used for insomnia. Zolpidem is well tolerated and especially efficacious for initiation of sleep, and therefore is effective for the treatment of sleep-onset insomnia. The purpose of the present study was to design and evaluate zolpidem nanoparticle-impregnated buccal films to prolong the duration of its action...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901206/antimicrobial-activity-of-different-disinfectants-against-cariogenic-microorganisms
#5
Esra Uzer Celik, Ayse Tugce Tunac, Mustafa Ates, Bilge Hakan Sen
The aim of this study was to assess the in vitro antimicrobial effects of chlorhexidine digluconate (CHX), polyhexamethylene biguanide (PHBM), and octenidine dihydrochloride (OCT) on cariogenic microorganisms by using their minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). CHX, PHBM, and OCT were diluted in distilled water to the final test concentrations. Using the in-tube dilution method, Streptococcus mutans, Lactobacillus acidophilus, Lactobacillus rhamnosus, and Actinomyces viscosus were cultivated on blood agar and Mueller-Hinton broth (MHB) at 37°C for 48 h...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901205/six-month-color-change-and-water-sorption-of-9-new-generation-flowable-composites-in-6-staining-solutions
#6
Maria Arregui, Luis Giner, Marco Ferrari, Marta Vallés, Montserrat Mercadé
Color match and water sorption are two factors that affect restorative materials. Discoloration is essential in the lifespan of restorations. The aim of this study was to evaluate color change and water sorption of nine flowable composites at multiple time points over 6 months. 60 samples of each composite were divided into two groups (Color Change and Water Sorption/Solubility). Each Color Change group was divided into six subgroups, which were immersed in distilled water (DW), coffee (CF), Coca-Cola (CC), red wine (RW), tea (TE) and orange juice (OJ)...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901204/response-of-a-co-culture-model-of-epithelial-cells-and-gingival-fibroblasts-to-zoledronic-acid
#7
Fernanda Gonçalves Basso, Diana Gabriela Soares, Taisa Nogueira Pansani, Ana Paula Silveira Turrioni, Débora Lopes Scheffel, Josimeri Hebling, Carlos Alberto de Souza Costa
Osteonecrosis of the jaw is an adverse effect of bisphosphonates. While the etiopathogenesis of this condition has been investigated, the interactions and effects of bisphosphonates on oral mucosa cells remain unclear. It is hypothesized that cell culture models, such as co-culture or three-dimensional cell culture models, can provide valuable insight. Therefore, the aim of this study was to evaluate the effects of zoledronic acid (ZA) on epithelial cells and gingival fibroblasts in a co-culture model. Briefly, epithelial cells were seeded on transwell inserts and gingival fibroblasts were seeded in the lower well of 24-well plates...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901203/case-control-study-examining-the-impact-of-oral-health-problems-on-the-quality-of-life-of-the-families-of-preschoolers
#8
Ramon Targino Firmino, Monalisa Cesarino Gomes, Raquel Gonçalves Vieira-Andrade, Carolina Castro Martins, Saul Martins Paiva, Ana Flávia Granville-Garcia
The aim of this study was to evaluate the impact of dental caries, traumatic dental injuries (TDI), toothaches, and malocclusion on the oral health-related quality of life (OHRQoL) of the families of Brazilian preschool children. A population-based, matched case-control study involving 415 pre-schoolers aged 3-5 years was conducted. The case (impact on OHRQoL) and control groups (no impact on OHRQoL) were matched for age, gender, and family income at an 1:4 ratio. Impact on the OHRQoL of a family was assessed using the Brazilian version of the Early Childhood Oral Health Impact Scale (B-ECOHIS)...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901202/in-vivo-performance-of-different-scaffolds-for-dental-pulp-stem-cells-induced-for-odontogenic-differentiation
#9
Cigdem Atalayin, Huseyin Tezel, Taner Dagci, Nefise Ulku Karabay Yavasoglu, Gulperi Oktem, Timur Kose
This study was designed to determine the in vivo performance of three different materials as scaffolds for dental pulp stem cells (DPSC) undergoing induced odontogenic differentiation. An odontogenic medium modified by the addition of recombinant human bone morphogenetic protein 2 was used in the experimental groups to induce differentiation. Mesenchymal stem cell medium was used in the control groups. DPSC were transplanted onto the backs of mice via three scaffolds: copolymer of L-lactide and DL-lactide (PLDL), copolymer of DL-lactide (PDL) and hydroxyapatite tricalcium phosphate (HA/TCP)...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901201/evaluation-of-a-preventive-educational-program-for-malocclusions-7-year-study
#10
Beatriz Brandão Scarpelli, Sandrine Bittencourt Berger, Marília Franco Punhagui, Cássio Alexandre Zeri de Oliveira, Antonio Ferelle, Paula Vanessa Pedron Oltramari-Navarro
Results: 506 of the 802 guardians/children referred to the PPM joined. As for the children, the most frequently assessed habits were: bottle (56.1%), bottle and pacifier (18.4%), finger (11.9%), bottle and finger (7.1%), pacifier (5.7%), pacifier and finger (0.6%), and bottle/pacifier/finger (0.2%). After parent participation in the meetings, 335 (66.2%) children abandoned their habits. There was a statistical difference between type of oral habit and time to abandonment (p = 0.0001)...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901200/retrospective-analysis-of-the-clinical-behavior-of-oral-hairy-leukoplakia-in-215-hiv-seropositive-patients
#11
Daniela Assis do Vale, Fabiana Martins E Martins, Paulo Henrique Braz da Silva, Karem López Ortega
Oral manifestations are common findings in human immunodeficiency virus (HIV) infected patients and frequently influence the overall health. Oral hairy leukoplakia (OHL) is strongly associated with HIV infection demonstrating its relationship with the individual's immune status and progression of immunosuppression. This study aims to retrospectively evaluate OHL in HIV patients, analyzing its incidence, demographic aspects and possible changes in clinical and epidemiological profile of the disease over 17 years...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27901199/effects-of-chlorhexidine-varnish-on-caries-during-orthodontic-treatment-a-systematic-review-and-meta-analysis
#12
Elaine Machado Pingueiro Okada, Larissa Nogueira Soares Ribeiro, Maria Bernadete Sasso Stuani, Maria Cristina Borsatto, Tatiana Kelly da Silva Fidalgo, Francisco Wanderley Garcia de Paula-Silva, Erika Calvano Küchler
This study aimed to perform a systematic review and meta-analysis to evaluate the effectiveness of chlorhexidine varnish on the reduction of caries incidence during fixed orthodontic treatment. The literature searches involved The Cochrane Library, Medline, Scopus, OpenSigle databases and manual searches. The search on OpenSigle did not produce any additional articles. Clinical studies conducted in patients with orthodontic fixed appliances that used professional application of chlorhexidine varnish were included...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27849214/efficacy-of-two-soft-bristle-toothbrushes-in-plaque-removal-a-randomized-controlled-trial
#13
Cassiano Kuchenbecker Rosing, Juliano Cavagni, Eduardo José Gaio, Francisco Wilker Mustafa Gomes Muniz, Harry Juan Rivera Oballe, Nicolle Ranzan, Stephanie Anagnostopoulos Friedrich, Raísa Maldonado Severo, Elizabeth Gittins, Bernal Stewart, Yun Po Zhang
The aim of this study was to compare the efficacy in supragingival plaque removal of two soft-bristle toothbrushes. Seventy volunteers were allocated randomly to the Colgate Slim Soft or Curaprox CS5460 toothbrush grourps. At baseline appointment, volunteers underwent plaque examination using the Rustogi Modification of the Navy Plaque Index. Under supervision, they then brushed their teeth for 1minute with their assigned toothbrushes and the plaque examination was repeated. Volunteers performed daily oral hygiene with their assigned toothbrush and a regular dentifrice provided by the researchers for 7 days...
November 10, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27783770/risk-factors-associated-with-the-failure-of-miniscrews-a-ten-year-cross-sectional-study
#14
Ana Cláudia Moreira Melo, Augusto Ricardo Andrighetto, Suélen Darab Hirt, Ana Luiza Melo Bongiolo, Siddhartha Uhrigshardt Silva, Marcos André Duarte da Silva
The aims of this study were to identify (1) patient-related factors (sex, age, craniofacial pattern and smoking habit), (2) miniscrews implants (MSI)-related factors (length and diameter) and (3) location-related factors [bone (maxilla or mandible) and area (buccal, lingual and alveolar ridge)] that may be associated with MSI loss of stability. A total of 1356 MSI were installed in 570 patients (423 females and 147 males) with mean age of 42.7 during a 10-year period and were clinically evaluated once a month until the end of the proposed movement...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27783769/impact-of-molar-incisor-hypomineralization-on-oral-health-related-quality-of-life-in-schoolchildren
#15
Neusa Barros Dantas-Neta, Lúcia de Fátima Almeida de Deus Moura, Priscila Figueiredo Cruz, Marcoeli Silva Moura, Saul Martins Paiva, Carolina Castro Martins, Marina de Deus Moura de Lima
This study evaluated the impact of molar-incisor hypomineralization (MIH) on oral health-related quality of life (OHRQoL) according to the perceptions of schoolchildren and their parents/caregivers. This cross-sectional study consisted of a sample of 594 schoolchildren between 11 and 14 years of age and their parents/caregivers who answered the questionnaires CPQ11-14ISF:16 and P-CPQ, respectively. The main independent variable of this study was MIH of the schoolchildren. Experience of dental caries, malocclusion, and socioeconomic status were treated as confounding variables...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27783768/association-between-oral-health-status-and-central-obesity-among-brazilian-independent-living-elderly
#16
Carla Thais Rosada Peruchi, Regina Célia Poli-Frederico, Alexandrina Aparecida Maciel Cardelli, Marina de Lourdes Calvo Fracasso, Carina Gisele Costa Bispo, Rejane Dias Neves-Souza, Jefferson Rosa Cardoso, Sandra Mara Maciel
The aim of this study was to investigate the association between oral health status and central obesity (CO) in Brazilian independent-living elderly. A cross-sectional study was carried out in a sample of 489 elderly, who were participants of the Study on Aging and Longevity, in Londrina, state of Parana. The number of natural teeth and use of prostheses were evaluated according to the World Health Organization criteria. The presence of CO was assessed using measures of waist circumference (WC) and waist-hip ratio (WHR)...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27783767/moderate-sedation-helps-improve-future-behavior-in-pediatric-dental-patients-a-prospective-study
#17
Denise Espíndola Antunes, Karolline Alves Viana, Paulo Sucasas Costa, Luciane Rezende Costa
There is little evidence on the long-term effects of pharmacological management in children undergoing dental treatment. This study aimed to assess children's behavior in consecutive dental sessions following oral rehabilitation using different pharmacological regimens for behavioral control. Participants were preschoolers who were previously treated for caries under one of the following: no sedative, oral sedation with midazolam, oral sedation with midazolam/ketamine, or general anesthesia. The children's behavior in the follow-up sessions was assessed using the Ohio State University Behavioral Rating Scale (OSUBRS); higher scores represented less cooperative behavior (range 5-20)...
October 24, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27737367/validity-of-periodontitis-screening-questions-in-a-brazilian-adult-population-based-study
#18
Renato Quirino Ramos, João Luiz Bastos, Marco Aurélio Peres
Population-based studies assessing self-reported periodontal questions in low-income countries are lacking, and therefore we aimed to assess the accuracy of self-reported periodontal items in Brazil. One thousand one hundred and forty adults from Florianópolis, Brazil, had their periodontium clinically examined, and responded to the following self-reported items on periodontal conditions: Question (Q)1, Do you have any wobbly teeth?; Q2, Do your gums usually bleed?; and Q3, Has your dentist ever told you that you have gum disease? Periodontitis was defined as: a...
October 10, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27737366/marginal-and-internal-fit-of-zirconia-copings-obtained-using-different-digital-scanning-methods
#19
Lorena Oliveira Pedroche, Sérgio Rocha Bernardes, Moira Pedroso Leão, Cibele Cândida de Almeida Kintopp, Gisele Maria Correr, Bárbara Pick Ornaghi, Carla Castiglia Gonzaga
The objective of this study was to evaluate the marginal and internal fit of zirconia copings obtained with different digital scanning methods. A human mandibular first molar was set in a typodont with its adjacent and antagonist teeth and prepared for an all-ceramic crown. Digital impressions were made using an intraoral scanner (3Shape). Polyvinyl siloxane impressions and Type IV gypsum models were also obtained and scanned with a benchtop laboratory scanner (3Shape D700). Ten zirconia copings were fabricated for each group using CAD-CAM technology...
October 10, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27737365/trend-of-traumatic-crown-injuries-and-associated-factors-in-preschool-children
#20
Bernardo Antonio Agostini, Lisara Tosatto Pinto, Mariangélica Koehler, Bruno Emmanuelli, Chaiana Piovesan, Thiago Machado Ardenghi
The aim of this study was to assess trends in traumatic crown injuries (TCIs), their prevalence, and association with socioeconomic and clinical factors in preschool children over a 5-year period. A series of cross-sectional surveys was conducted in Santa Maria, Brazil, on children attending a National Day of Children's Vaccination. The same protocol was used in all surveys conducted in 2008, 2010, and 2013. Clinical examinations were performed to evaluate types of traumatic crown injuries using the O'brien index...
October 10, 2016: Brazilian Oral Research
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