Abstract：
:The purpose of this study was to measure mass loss and surface roughness changes of different brands of flowable resin composites after a simulated toothbrushing test. The null hypotheses were that there would be no differences in mass loss and no significant changes in surface roughness after this test and that there would be no correlation between the two variables. The tested materials were Aeliteflo (Bisco), Flow-It (Pentron), Flow-It LF (Pentron), Natural Flow (DFL) and Wave (SDI). Z100 (3M/ESPE) microhybrid and Silux Plus (3M/ESPE) microfilled resin composites were used as control materials. Twelve specimens (5 mm in diameter, 3 mm thick) of each material were prepared according to manufacturers' instructions. Toothbrushing abrasion was performed on all specimens from each of the materials using a simulator. The percentage mass loss and surface roughness were assessed before and after 100,000 brushstrokes, using a Sartorius analytical balance of 0.0001 g accuracy and a Hommel Tester T1000, respectively. The measurements of both properties were statistically compared by paired t-test and Tukey's test (p < 0.05). All materials presented a statistically significant mass loss comparing initial and final values, with the exception of Flow-It LF. However, no difference was revealed when comparing the mass loss of the different tested materials. All materials became rougher and Wave presented statistically higher roughness compared to the other resin composites. Flowable resin composites did not seem to be superior to the control groups, and they can be expected to wear by mass loss and to have an increased roughness of surface after toothbrushing action. The anticipated null hypotheses were partially accepted.
journal_name
Braz Oral Resjournal_title
Brazilian oral researchauthors
Garcia FC,Wang L,D'Alpino PH,Souza JB,Araújo PA,Mondelli RFdoi
10.1590/s1806-83242004000200012subject
Has Abstractpub_date
2004-04-01 00:00:00pages
156-61issue
2eissn
1806-8324issn
1807-3107pii
S1517-74912004000200012journal_volume
18pub_type
杂志文章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：:To determine xerostomia-related frequency, factors, salivary flow rates and Oral Health-Related Quality of Life (OHRQoL) of patients attending the Universidad Andrés Bello Dental School Clinic, in the city of Viña del Mar, Chile. The study involved 566 patients assessed with xerostomia, based on a single standardized ...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2017.vol31.0014
更新日期：2017-01-16 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 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 study aimed to evaluate the role of photobiomodulation (PBM) in apexification and apexogenesis of necrotic rat molars with an open apex. Rat molars were exposed to the oral environment for 3 weeks. Canals were rinsed with 2.5% NaOCl and 17% EDTA, filled with antibiotic paste and sealed. After 7 days, canals were ...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107bor-2019.vol33.0084
更新日期：2019-08-26 00:00:00
abstract：:To evaluate the association between temporomandibular disorder (TMD) and anxiety, quality of sleep, and quality of life in nursing professionals at the Hospital de Clínicas de Uberlândia of the Universidade Federal de Uberlandia--HCU-UFU (Medical University Hospital of the Federal University of Uberlândia), four quest...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2015.vol29.0070
更新日期：2015-01-01 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：:Dental trauma in immature permanent teeth can damage pulp vascularization, which leads to necrosis and cessation of apexogenesis. Studies on tissue engineering using stem cells from human exfoliated deciduous teeth (SHEDs) have yielded promising results. Laser phototherapy (LPT) is able to influence the proliferation ...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2016.vol30.0080
更新日期：2016-05-31 00:00:00
abstract：:This study analyzed the effects of unilateral detachment of the temporal muscle and coronoidotomy on facial growth in young rats. Thirty one-month-old Wistar rats were distributed into three groups: detachment, coronoidotomy and sham-operated. Under general anesthesia, unilateral detachment of the temporal muscle was ...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/s1806-83242012000400011
更新日期：2012-07-01 00:00:00
abstract：:The aim of this study was to evaluate the influence of radiation therapy on root canal sealer push-out bond strength (BS) to dentin and the sealer/dentin interface after different final irrigation solutions (NaOCl, EDTA, and chitosan). Sixty-four maxillary canines were distributed into two groups (n=30): non-irradiate...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107bor-2018.vol32.0121
更新日期：2018-11-29 00:00:00
abstract：:The purpose of this study was to analyze luxation injuries in children between the ages of 0 and 5 years treated at an emergency service department. A total of 1,703 records, corresponding to a period of 10 years at the Emergency Center of the Baby Clinic at Londrina State University, Brazil, were analyzed. The age, g...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/s1806-83242011000200009
更新日期：2011-03-01 00:00:00
abstract：:Epidemiological data on the periodontal health and oral hygiene practices of young individuals in Latin America are limited. This study was conducted in a sample of 355 first-year students randomly selected from 3,251 new students entering the largest university in Colombia. Participants received a periodontal examina...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107bor-2014.vol28.0009
更新日期：2014-01-01 00:00:00
abstract：:The objective of the present study was to assess the effectiveness of reciprocating instrumentation in disinfecting oval-shaped root canals infected with Enterococcus faecalis. Forty-five human lower premolars were infected with a culture of E. faecalis (ATCC 29212) for 28 days. Five other teeth that were neither cont...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2015.vol29.0027
更新日期：2015-01-01 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：:Coronavirus disease 2019 (COVID-19) has spread exponentially across the world. The typical manifestations of COVID-19 include fever, dry cough, headache and fatigue. However, atypical presentations of COVID-19 are being increasingly reported. Recently, a number of studies have recognized various mucocutaneous manifest...
journal_title：Brazilian oral research
pub_type： 杂志文章,评审
doi：10.1590/1807-3107bor-2020.vol34.0124
更新日期：2020-10-30 00:00:00
abstract：:The aim of this study was to detect possible differences in the EMG (electromyography) activity, chewing rate (CR), cycle duration (CD) and preferred chewing side (PCS) between children with and without unilateral posterior crossbite. Thirty-seven children aged from 7 to 10 years were selected from the clinic of the D...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/s1806-83242010000200013
更新日期：2010-04-01 00:00:00
abstract：:Oral complications of RA may include temporomandibular joint disorders, mucosa alterations and symptoms of dry mouth. The aim of this study was to evaluate the salivary gland function of subjects with rheumatoid arthritis (RA) comparing it to healthy controls. Subjects with other systemic conditions known to affect sa...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2016.vol30.0106
更新日期：2016-10-10 00:00:00
abstract：:This study evaluated the effect of cleanser solutions on the color of heat-polymerized acrylic resin (HPAR) and on the brightness of dental alloys with 180 immersion trials. Disk-shaped specimens were made with I) commercially pure titanium, II) nickel-chromium-molybdenum-titanium, III) nickel-chromium molybdenum, and...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107bor-2014.vol28.0017
更新日期：2014-01-01 00:00:00
abstract：:Free gingival grafting, the most predictable technique to increase the keratinized gingiva, leaves an open wound on the palate and the resulting discomfort during the healing phase is a significant concern. This study was intended to evaluate the effect of topical erythropoietin on healing of the donor site. Twelve pa...
journal_title：Brazilian oral research
pub_type： 杂志文章,随机对照试验
doi：10.1590/1807-3107bor-2018.vol32.0055
更新日期：2018-06-11 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 analyze the efficiency of experimental light-curing resin cements (ERCs) with a ternary photo-initiator system containing diphenyliodonium hexafluorphosphate (DPI) and different amines on retention of glass-fiber posts to dentin (GFP). ERCs formulations: a 1:1 mass ratio of 2,2-bis[4-(2-hy...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107bor-2018.vol32.0116
更新日期：2018-11-14 00:00:00
abstract：:The cyclic resistance of ProTaper Universal (size 25/08) and ProTaper Next (size 25/06) instruments was compared in artificial canals with different curvatures in this study. A total of 30 ProTaper Universal and 30 ProTaper Next instruments were divided into 6 groups (n = 10) and were operated into artificial canals w...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2015.vol29.0122
更新日期：2015-01-01 00:00:00
abstract：:Recent studies investigating protease-activated receptor type 2 (PAR-2) suggest an association between the receptor and periodontal inflammation. It is known that gingipain, a bacterial protease secreted by the important periodontopathogen Porphyromonas gingivalis can activate PAR-2. Previous studies by our group foun...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2017.vol31.0016
更新日期：2017-01-26 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：:Conventional methods of caries detection, including the gold standard of histological examination, have certain disadvantages that must be addressed prior to validating any other diagnostic technique-current or new. Here we evaluated the validity of micro-computed tomography (micro-CT) as an alternative gold-standard ...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2015.vol29.0132
更新日期：2015-01-01 00:00:00
abstract：:The aim of this in vitro study was to evaluate four different approaches to the decision of changing or not defective amalgam restorations in first primary molar teeth concerning the loss of dental structure. Ditched amalgam restorations (n = 11) were submitted to four different treatments, as follows: Control group -...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/s1806-83242008000300009
更新日期：2008-07-01 00:00:00
abstract：:The wide use of dental bleaching treatment has brought concern about the possible effects of hydrogen peroxide on dental tissue and restorative materials. The objective of this study was to evaluate in vitro the effect of nightguard bleaching on the surface roughness of dental ceramics after different periods of bleac...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/s1806-83242011000500013
更新日期：2011-09-01 00:00:00
abstract：:The aim of this study is to evaluate the machinability of four CAD/CAM materials (n = 13) assessed by brittleness index, Vickers hardness, and fracture toughness and interaction among such mechanical properties. The materials selected in this in vitro study are Feldspathic ceramic [FC], Lithium-disilicate glass cerami...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107bor-2019.vol33.0026
更新日期：2019-01-01 00:00:00
abstract：:Based on aroeira's (Myracrodruon urundeuva) antimicrobial activity and a future trend to compose intracanal medication, the aim of this study was to assess in vivo inflamatory tissue response to the extracts by edemogenic and histological analysis containing inactivated facultative and anaerobic microorganisms. For ed...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107bor-2018.vol32.0042
更新日期：2018-05-24 00:00:00
abstract：:This study aimed at assessing the relationship between dental pain and the reason for using dental services and oral health quality of life in people aged 50 to 74 years in southern Brazil. A cross-sectional population-based study was conducted with 720 individuals aged 50 to 74 years, living in three health districts...
journal_title：Brazilian oral research
pub_type： 杂志文章
doi：10.1590/1807-3107BOR-2016.vol30.0039
更新日期：2016-08-18 00:00:00
