Horizontal Bone Reconstruction on sites with different amounts of native bone: a retrospective study
The objective of this study was to perform a retrospective study to verify the outcomes of horizontal bone reconstruction in implant dentistry with different types of materials and amounts of native bone in the recipient bed to allow for a new guideline for horizontal bone reconstruction. One hundred preoperative CT scans were retrospectively evaluated and categorized in accordance to horizontal bone defects as presence (Group P) or absence (Group A) of cancellous bone in the recipient bed. Different approaches were used to treat the edentulous ridge and the outcomes were defined either as satisfactory or unsatisfactory re...
Source: Brazilian Oral Research - April 6, 2018 Category: Dentistry Source Type: research
Can intra-radicular cleaning protocols increase the retention of fiberglass posts? A systematic review
In conclusion, this review suggests that the use of NaOCl/EDTA results in the retention of FGPs and may thus be recommended as a post-space cleaning method influencing the luting procedure. (Source: Brazilian Oral Research)
Source: Brazilian Oral Research - March 16, 2018 Category: Dentistry Source Type: research
In vitro effects of alcohol-containing mouthwashes on human enamel and restorative materials
The objective of this study was to evaluate the in vitro effects, including surface morphological characteristics and chemical elemental properties, of different mouthwash formulations on enamel and dental restorative materials, simulating up to 6 months of daily use. Human enamel samples, hydroxyapatite, composite resin, and ceramic surfaces were exposed to 3 different mouthwashes according to label directions — Listerine ® Cool Mint®, Listerine® Total Care, and Listerine® Whitening — versus control (hydroalcohol solution) to simulate daily use for up to 6 months. The samples were analyzed using scanning electro...
Source: Brazilian Oral Research - March 16, 2018 Category: Dentistry Source Type: research
A multicenter study of biopsied oral and maxillofacial lesions in a Brazilian pediatric population
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 referral centers. A total of 32,506 biopsy specimens were analyzed, and specimens from 1,706 children aged 0 – 12 years were selected. Gender, age, anatomical location and histopathological diagnosis were evaluated. Descriptive statistics was carried out. Likelihood ratio tests were used to evaluate the ...
Source: Brazilian Oral Research - March 16, 2018 Category: Dentistry Source Type: research
Epidemiological analysis and need for endodontic treatment among the indigenous Sateré-Mawé and Tikuna
The objective of this study was to analyze the epidemiological profile of oral health of Sater é-Mawé indigenous people living in Barreirinha, Amazonas (AM), Brazil, and the Tikuna indigenous people living in the urban area of Manaus (AM), in addition to characterizing the need for endodontic treatment between the two ethnic groups. A total of 138 individuals participated in the study, of w hom 98 were Tikuna and 40 were Sateré-Mawé; they were distributed in age groups ranging from seven to 75 years. A very high prevalence of caries was observed in both ethnic groups. For the Sateré-Mawé in the 7 – 12 age group, th...
Source: Brazilian Oral Research - March 9, 2018 Category: Dentistry Source Type: research
Push-out bond strength of different tricalcium silicate-based filling materials to root dentin
Abstract: The aim of this study was to evaluate the bond strength of different triccalcium silicate cements to retrograde cavity using a push out test. Thirty maxillary central incisors were shaped using #80 hand files and sectioned transversally. Root slices were obtained from the apical 4 mm after eliminating the apical extremity. The specimens were embedded in acrylic resin and positioned at 45 ° to the horizontal plane for preparation of root-end cavities with a diamond ultrasonic retrotip. The samples were divided into three groups according to the root-end filling material (n = 10): MTA Angelus, ProRoot MTA and Biod...
Source: Brazilian Oral Research - March 9, 2018 Category: Dentistry Source Type: research
A comparative study of bulk-fill composites: degree of conversion, post-gel shrinkage and cytotoxicity
Abstract: Bulk-fill composites are claimed to be restorative materials used in deep preparations and effectively photoactivated in layers up to 4 mm. The aim of the present study was to evaluate the degree of conversion, post-gel volumetric shrinkage, and cytotoxicity of six bulk-fill and two conventional composites. Degree of conversion was determined by FTIR spectroscopy; post-gel volumetric shrinkage was determined using the strain gauge method; and cytotoxicity in human fibroblasts was evaluated indirectly by the MTT assay. Data were subjected to one-way ANOVA/Tukey's test ( α = 0.05). All materials, including bulk-f...
Source: Brazilian Oral Research - March 9, 2018 Category: Dentistry Source Type: research
Cross-cultural adaptation and validation of the Impact of Fixed Appliances Measure questionnaire in Brazil
Abstract: The aim of this study was to translate and cross-culturally adapt the condition-specific instrument Impact of Fixed Appliances Measure (IFAM), assessing its validity and reliability for use among Brazilian children/adolescents. The IFAM was translated, back-translated, cross-culturally adapted, and pilot-tested. The Brazilian version of the IFAM (B-IFAM) was tested on 161 10-to-18-year-old children/adolescents. Internal consistency was assessed using Cronbach's alpha ( α ) and test-retest reliability by intraclass correlation coefficients (ICC). Construct validity was conducted using Pearson correlation among th...
Source: Brazilian Oral Research - March 9, 2018 Category: Dentistry Source Type: research
Desire for tooth bleaching and treatment performed in Brazilian adults: findings from a birth cohort
Abstract: Population-based studies estimating the prevalence of tooth bleaching desire or the percentage of individuals who had performed this treatment are rare. Thus, the aim of this study was to evaluate the desire to perform tooth bleaching and the prevalence of adult individuals who had performed the treatment and investigate the association of these outcomes. A subsample (n = 536) of the 1982 Pelotas birth cohort in southern Brazil was investigated at the ages 15, 24 and 31 by clinical examinations and interviews. The prevalence of bleaching at 31 years was 15.6% [95%CI 12.6 – 18.9] while 85.9% [95%CI 82.7 – 88.7...
Source: Brazilian Oral Research - March 9, 2018 Category: Dentistry Source Type: research
Interleukin-6 and interleukin-10 gene polymorphisms and the risk of further periodontal disease progression
Abstract: Susceptible genotypes to periodontal disease are associated with disease onset and progression. The aim of this study was to examine the effect of gene polymorphisms on the risk of further disease progression and the need for further treatment among adults with chronic periodontal disease. Sixty-seven patients diagnosed with chronic periodontitis were grouped according to genotype status and risk of further progression of disease and tooth loss. All individuals were clinically evaluated for probing pocket depth, clinical attachment loss and bleeding on probing at baseline and 45 days after treatment. Blood sample...
Source: Brazilian Oral Research - March 9, 2018 Category: Dentistry Source Type: research
ERRATUM: Microtensile bond strength of CAD/CAM materials to dentin under different adhesive strategies. Braz Oral Res. 2017;31:e109.
This study aimed to compare the longevity of different conventional restorative materials placed in posterior primary teeth. This systematic review was conducted following the PRISMA statement and registered in PROSPERO (CRD42016035775). A comprehensive electronic search without date or language restrictions was performed in PubMed/MEDLINE, Cochrane Central Register of Controlled Trials, Scopus, Turning Research Into Practice (TRIP) and Clinical Trials databases up to January 2017, selecting randomized clinical trials that assessed the longevity of at least two different conventional restorative materials performed in prim...
Source: Brazilian Oral Research - March 1, 2018 Category: Dentistry Source Type: research
Is there a best conventional material for restoring posterior primary teeth? A network meta-analysis
This study aimed to compare the longevity of different conventional restorative materials placed in posterior primary teeth. This systematic review was conducted following the PRISMA statement and registered in PROSPERO (CRD42016035775). A comprehensive electronic search without date or language restrictions was performed in PubMed/MEDLINE, Cochrane Central Register of Controlled Trials, Scopus, Turning Research Into Practice (TRIP) and Clinical Trials databases up to January 2017, selecting randomized clinical trials that assessed the longevity of at least two different conventional restorative materials performed in prim...
Source: Brazilian Oral Research - March 1, 2018 Category: Dentistry Source Type: research
Evaluation of long-term bond strength and selected properties of self-adhesive resin cements
This study evaluated the shear bond strength (SBS) of self-adhesive resin cements (SARCs) to dentin and their physical-chemical properties. Five commercial SARCs were evaluated [SmartCem ®2 – DENTSPLY (SC2); BisCem ® – Bisco (BC); SeT PP ® − SDI (SeT); Relyx U100 ® – 3M ESPE (U100) and YCEM ® SA - Yller (YCEM)]. The SARCs were evaluated for SBS to dentin (n = 10) after 24 h, 6 months, and 12 months. The dentin demineralization caused by acidic monomers was observed by SEM, and pH-neutralization of eluate was observed for 24 h. Degree of conversion (DC), rate of polymerization (Rp), fl exural strength (FS),...
Source: Brazilian Oral Research - March 1, 2018 Category: Dentistry Source Type: research
Bond strength values of fiberglass post to flared root canals reinforced with different materials
Abstract The aim of this study was to compare in vitro the bond strength (BS) between fiberglass posts and flared root canals reinforced with different materials. The roots of 48 premolars were endodontically treated. After one week, the root canals were prepared to simulate an oversized root canal, except for the positive control group (PCG), which was cemented with a prefabricated fiber post (PFP) compatible with the root canal size, simulating an ideal adaptation. The other samples (n=8/group) were used to test alternative restorative techniques for filling root canals: negative control group (NCG [PFP with a smaller di...
Source: Brazilian Oral Research - March 1, 2018 Category: Dentistry Source Type: research
Immediate tooth replantation: root canal filling for delayed initiation of endodontic treatment
Abstract The aim of this study is to evaluate the action of paramonochlorophenol associated with Furacin followed by calcium hydroxide (CH) dressing in the control of inflammatory root resorption in cases of immediate tooth replantation with delayed endodontic treatment. A total of 28 incisors of 3 male dogs were extracted and replanted after 15 minutes, and randomly divided into 3 groups: Group I (n = 8) - endodontic treatment was performed before the extraction and replantation; Group II (n = 10) - endodontic treatment was performed 30 days after replantation and the root canal was filled with CH dressing; Group III (n =...
Source: Brazilian Oral Research - March 1, 2018 Category: Dentistry Source Type: research
