Abstract:
:Fluoride has been widely used in dentistry because it is a specific and effective caries prophylactic agent. However, excess fluoride may represent a hazard to human health, especially by causing injury to genetic material. Genotoxicity tests represent an important part of cancer research to assess the risk of potential carcinogens. In the current study, the potential DNA damage associated with exposure to fluoride was assessed by the single cell gel (comet) assay in vitro. Chinese hamster ovary cells were exposed to sodium fluoride (NaF) at final concentration ranging from 7 to 100 micro/ml for 3 h, at 37 dgrees C. The results pointed out that NaF in all concentrations tested did not contribute to DNA damage as depicted by the mean tail moment and tail intensity. These findings are clinically important since they represent an important contribution to a correct evaluation of the potential health risk associated with the exposure to dental agents.
journal_name
Braz Oral Resjournal_title
Brazilian oral researchauthors
Ribeiro DA,Scolastici C,Marques ME,Salvadori DMdoi
10.1590/s1806-83242004000300003subject
Has Abstractpub_date
2004-07-01 00:00:00pages
192-6issue
3eissn
1806-8324issn
1807-3107journal_volume
18pub_type
杂志文章abstract::The present systematic review was performed to investigate if there is evidence justifying the prophylactic extraction of third molars, one of the most frequent procedures in oral surgery. A series of searches was carried out for randomized, clinical trials and systematic reviews in seven databases (MEDLINE, BBO, LILA...
journal_title:Brazilian oral research
pub_type: 杂志文章,评审
doi:
更新日期:2013-03-01 00:00:00
abstract::This study investigated the effect of coinitiator solutions and self-adhesive resin cement on the early retention of glass-fiber posts. Cylindrical glass-fiber posts were luted into 40 incisor roots with different adhesion strategies (n = 10): SB2, Single Bond 2 + conventional resin cement (RelyX ARC); AP, Scotchbond ...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242012005000017
更新日期:2012-09-01 00:00:00
abstract::The aim of this study was to evaluate the remaining dentine/cementum thickness using Gates-Glidden burs in serial and crown-down sequences and to observe which of the two sequences is the safest for preparing mesial roots of molars. Thirty-six left and right human mandibular first molars were selected. Standard access...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242008000100004
更新日期:2008-01-01 00:00:00
abstract::[This corrects the article doi: 10.1590/1807-3107BOR-2017.vol31.0105]. ...
journal_title:Brazilian oral research
pub_type: 杂志文章,已发布勘误
doi:10.1590/1807-3107BOR-2017.vol31.0105erratum
更新日期:2018-02-01 00:00:00
abstract::The aim of this study was to evaluate the relationship between masticatory performance and maximum bite force in the primary dentition. The sample comprised 15 children of both genders, aged 3 to 5.5 years, with good systemic and oral health, presence of all primary teeth without large caries, no structural anomalies,...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242007000200009
更新日期:2007-04-01 00:00:00
abstract::Prosthetic eyes are artificial substitutes for the eyeball, made of heat-curing acrylic resin, serving to improve the esthetic appearance of the mutilated patient and his/her inclusion in society. The aim of this study was to assess the flexural strength of two heat-curing acrylic resins used for manufacturing prosthe...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242009000300007
更新日期:2009-07-01 00:00:00
abstract::Manufacturers offer various prescriptions of preadjusted brackets for use in the "straight-wire" orthodontic technique. However, the need to incorporate bends in the rectangular wires during orthodontic finishing has led to concerns regarding the type of prescription chosen and the credibility of information provided ...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107bor-2014.vol28.0038
更新日期:2014-01-01 00:00:00
abstract::Anti-dentin autoantibodies are associated with inflammatory root resorption in permanent teeth and are modulated by dental trauma and orthodontic force. However, it is not known whether deciduous tooth trauma can stimulate the development of a humoral immune response against dentin. The aim of this study was to evalua...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107BOR-2015.vol29.0102
更新日期:2015-01-01 00:00:00
abstract::Human Papilomaviruses (HPV) are a group of viruses associated with benign and malignant lesions of cutaneous and mucosal epithelia. Some "high risk" HPV types, especially HPV 16 and 18, are strongly correlated with cervical and anogenital cancers and are also related to the genesis of oral squamous cell carcinomas (OS...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242006000100005
更新日期:2006-01-01 00:00:00
abstract::The aim of the present study was to evaluate the periodontal conditions of anterior teeth that presented pathologic migration in patients with chronic periodontitis and to compare periodontal destruction in migrated versus non-migrated teeth. The sample included 32 patients of both sexes (mean age: 46.0 +/- 11.6 years...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242004000400005
更新日期:2004-10-01 00:00:00
abstract::The objective of this study was to compare the completion rates and performance of the Brazilian version of the Oral Health Impact Profile (OHIP14) when applied as an interview or in its original self-reported form. A convenience sample of 74 adult patients was selected in a Dental Clinic (University of Araras, Brazil...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242009000400002
更新日期:2009-10-01 00:00:00
abstract::This pilot study aimed to evaluate the influence of smoking on clinical and microbiological parameters after nonsurgical periodontal therapy. Forty-eight subjects were grouped into smokers (SM, n = 24) and nonsmokers (NS, n = 24) and paired according to gender, age, ethnicity, and periodontal status. Both groups recei...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107BOR-2016.vol30.0092
更新日期:2016-08-22 00:00:00
abstract::The etiology of temporomandibular disorders (TMD), which are considered as a heterogeneous group of psychophysiological disturbances, remains a controversial issue in clinical dentistry. This study aimed to evaluate whether the salivary alpha-amylase (sAA), cortisol levels, and anxiety symptoms differ between children...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107BOR-2017.vol31.0078
更新日期:2017-09-28 00:00:00
abstract::The identification of the skeletal maturation stage of the cervical vertebrae has proven an important reference for orthodontic diagnosis. The aim of the present study was to determine the association between the skeletal maturation stage of the cervical vertebrae and types of malocclusion according to the age and gen...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242012005000003
更新日期:2012-03-01 00:00:00
abstract::The aim of the present study was to evaluate the prevalence and impact of malocclusion on oral health-related quality of life (OHRQoL) among schoolchildren aged 8 to 10 years and their parents in Diamantina, a town in the southeast of Brazil. A cross-sectional study was conducted with a sample of 390 randomly selected...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107bor-2018.vol32.0095
更新日期:2018-01-01 00:00:00
abstract::Gingival overgrowth (GO) is a frequent finding in patients treated with cyclosporine (CsA). This study investigated the prevalence and severity of GO in patients who received kidney transplant and CsA therapy, as well as associations with pharmacological and clinical factors. This cross-sectional study included 63 kid...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242011005000016
更新日期:2012-01-01 00:00:00
abstract::The aim of this study was to verify the prevalence of signs and symptoms of temporomandibular disorders (TMD) in adolescents and its relationship to gender. The sample comprised 217 subjects, aged 12 to 18. The subjective symptoms and clinical signs of TMD were evaluated, using, respectively, a self-report questionnai...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242005000200004
更新日期:2005-04-01 00:00:00
abstract::The sense of coherence (SOC) is a measure of global orientation regarding the ability of individuals to cope with stressful situations. The aim of the present study was to evaluate the association between SOC and quality of life (QoL) and clinical and sociodemographic characteristics among survivors of oral, oropharyn...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107bor-2020.vol34.0009
更新日期:2020-02-07 00:00:00
abstract::The aim of this study was to evaluate alternative methods for the disinfection of toothbrushes considering that most of the previously proposed methods are expensive and cannot be easily implemented. Two-hundred toothbrushes with standardized dimensions and bristles were included in the study. The toothbrushes were di...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242010000100005
更新日期:2010-01-01 00:00:00
abstract::Osteoporosis, a disease characterized by progressive bone loss, has been the target of several studies in the past few years. It results in a much higher risk for fractures and might cause slower bone lesion healing. The aim of this work was to study the effects of Risedronate (allopathic medicine) and Calcarea phosph...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242006000300003
更新日期:2006-07-01 00:00:00
abstract::The bond strength of methacrylate (Z350, 3M ESPE) and silorane (P90, 3M ESPE) restorations, using different cavity filling techniques, was investigated. Cavities (6 × 3 × 3) in bovine teeth were filled using bulk, oblique, or horizontal increments. A push-out test was carried out after 24 h. Data were statistically an...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107BOR-2016.vol30.0044
更新日期:2016-01-01 00:00:00
abstract::Properly performed daily mechanical biofilm control is the most important prevention strategy for periodontal diseases. However, proper mechanical biofilm control is not performed effectively by the majority of the population, mainly due to lack of motivation and of manual dexterity. Local biofilm retention factors ma...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107bor-2014.vol28.0021
更新日期:2014-07-11 00:00:00
abstract::The aim of this study was to investigate the effects of low-intensity pulsed ultrasound (LIPUS) on the osteogenic differentiation of dental follicle cells (DFCs) in vitro and on the regenerative effects of DFC-OsteoBoneTM complexes in vivo. DFCs were isolated and characterized. In the in vitro study, DFCs were culture...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107bor-2019.vol33.0045
更新日期:2019-09-09 00:00:00
abstract::The extent of separation between the maxillary and mandibular teeth in the fabrication of interocclusal splints designed to achieve efficiency and muscle relaxation is controversial and undefined in the literature. Based on this premise, the aim of this study was to evaluate the effect of interocclusal splint thicknes...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242011000600006
更新日期:2011-11-01 00:00:00
abstract::The aim of this study was to investigate the prevalence of oral and maxillofacial lesions among children from representative regions of Brazil. A retrospective descriptive study was conducted. Biopsy records comprising the period from 2000 to 2015 were obtained from the archives of three Brazilian oral pathology refer...
journal_title:Brazilian oral research
pub_type: 杂志文章,多中心研究
doi:10.1590/1807-3107bor-2018.vol32.0020
更新日期:2018-03-15 00:00:00
abstract::The present study aimed to assess the influence of curing distance on the loss of irradiance and power density of four curing light devices. The behavior in terms of power density of four different dental curing devices was analyzed (Valo, Elipar 2, Radii-Cal, and Optilux-401) using three different distances of photop...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107BOR-2015.vol29.0060
更新日期:2015-01-01 00:00:00
abstract::The purpose of the present study was to evaluate the relationship between psychological variables and the clinical diagnosis of temporomandbular disorders (TMD) in 12-year-old adolescents. TMD pain was assessed by RDC/TMD examination (Research Diagnostic Criteria for Temporomandibular Disorders) (Axis I and II). Five-...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242009000200011
更新日期:2009-04-01 00:00:00
abstract::To evaluate the torsional properties of engine-driven pathfinding instruments manufactured from different NiTi alloys - R-Pilot (tip size 12.5;.04 taper; M-Wire) and One G (tip size 14;.03 taper; Conventional NiTi). A total of 40 NiTi instruments from engine-driven pathfinding instruments (n = 20) were used. The torsi...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/1807-3107bor-2019.vol33.0097
更新日期:2019-10-28 00:00:00
abstract::Tooth discoloration is commonly found in the dental clinic and tooth bleaching has been considered the preferred esthetic alternative, being more conservative, safe and with predictable results. Supervised home-use of 10% Carbamide Peroxide (CP) bleaching with custom-trays is the most common bleaching procedure dispen...
journal_title:Brazilian oral research
pub_type: 杂志文章,评审
doi:10.1590/s1806-83242009000500010
更新日期:2009-01-01 00:00:00
abstract::Clinical aspects and biochemical properties in the saliva of 21 patients prior to and following radiotherapy for head and neck cancer were evaluated (experimental group) and compared with the same properties in a control group of 21 subjects free of cancer. Salivary flow was evaluated by measuring the time necessary, ...
journal_title:Brazilian oral research
pub_type: 杂志文章
doi:10.1590/s1806-83242004000100013
更新日期:2004-01-01 00:00:00