Pesquisa odontologica brasileira = Brazilian oral research最新文献_第3页

Fluorine content of several brands of chocolate bars and chocolate cookies found in Brazil. 在巴西发现的几个品牌巧克力棒和巧克力饼干的氟含量。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300005

Marília Afonso Rabelo Buzalaf, José Mauro Granjeiro, Vanessa Eid da Silva Cardoso, Thelma Lopes da Silva, Kelly Polido Kaneshiro Olympio

{"title":"Fluorine content of several brands of chocolate bars and chocolate cookies found in Brazil.","authors":"Marília Afonso Rabelo Buzalaf, José Mauro Granjeiro, Vanessa Eid da Silva Cardoso, Thelma Lopes da Silva, Kelly Polido Kaneshiro Olympio","doi":"10.1590/s1517-74912003000300005","DOIUrl":"https://doi.org/10.1590/s1517-74912003000300005","url":null,"abstract":"Chocolate bars and chocolate cookies are foodstuffs highly appreciated by children. The possibility of having fluorine (F) among their components, associated with an excessive consumption, may make them decisive contributors to the total daily F intake. Thus, they could participate in the establishment of dental fluorosis. The aim of this study was to analyze the fluorine concentration [F] of the chocolates bars (CB) Baton, Confeti, Garoto Ball, Kinder Ovo, M&M s, Milkybar, Nescau, Nescau Ball, Surpresa, Surpresa Bichos, Tortuguita; and of the chocolate cookies (CC) Danyt s, Hipop , Nescau, Passatempo, Pokémon, S tio do Pica-Pau Amarelo and Trakinas. Samples were purchased in Bauru, São Paulo, Brazil. Three grams of each product were previously ashed at 525 C (CB and cookies fillings) and at 550 C (cookies dough), during 4 hours. Fluorine was separated from the ash by hexamethyldisiloxane (HMDS)-facilitated diffusion. Fluorine analysis was carried out with the specific electrode. Mean [F]s SD and amplitude (unit mg/g) were: CB = 0.30 0.45 (0.07 - 1.60, n = 12) and CC = 1.08 2.64 (0.04 - 7.10, n = 7). It was concluded that some of the analyzed foods may be important contributors to the total daily F intake. As for the product that had the highest [F] (Danyt s), when only 3 units are consumed just once a day, they may supply up to 40% of the maximum recommended daily F intake (0.07 mg/kg body weight) for a 2-year-old child (12 kg). The [F] in these products should be informed on their labels.","PeriodicalId":35295,"journal":{"name":"Pesquisa odontologica brasileira = Brazilian oral research","volume":"17 3","pages":"223-7"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s1517-74912003000300005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24197408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

Effect of a 0.5% chlorhexidine gel on dental plaque superinfecting microorganisms in mentally handicapped patients. 0.5%氯己定凝胶对智障患者牙菌斑重复感染微生物的影响。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300006

Cláudio Mendes Pannuti, Roberto Fraga Moreira Lotufo, Silvana Cai, Maria da Conceição Saraiva Md, Nívea Maria de Freitas, Danilo Falsi

引用次数: 25

Centric relation registration: intra- and interexaminer agreement after a calibration program. 中心关系配准:在校准程序后，审查员之间和审查员之间的协议。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300015

Evelyn Mikaela Kogawa, Luis Fernando Risso Lopes, Melissa Thiemi Kato, Fernando Tsuyoshi Ueno, Carlos Neanes Santos, José Roberto Pereira Lauris, Paulo César Rodrigues Conti

{"title":"Centric relation registration: intra- and interexaminer agreement after a calibration program.","authors":"Evelyn Mikaela Kogawa, Luis Fernando Risso Lopes, Melissa Thiemi Kato, Fernando Tsuyoshi Ueno, Carlos Neanes Santos, José Roberto Pereira Lauris, Paulo César Rodrigues Conti","doi":"10.1590/s1517-74912003000300015","DOIUrl":"https://doi.org/10.1590/s1517-74912003000300015","url":null,"abstract":"Centric relation (CR) has been considered a maxillomandibular position of choice for some dental and prosthetic procedures. Although regarded as a fully reproducible relation, there is great controversy about its clinical use and recording technique, especially in patients with signs and symptoms of temporomandibular disorders (TMD). This study aimed at evaluating the effectiveness of a training program on intra- and interexaminer agreement when determining the clinical record of the CR position. Forty individuals constituted the sample, divided into symptomatic (TMD) and asymptomatic groups. Three previously calibrated examiners performed the initial assessment and the second evaluation after 30 days in a blind design, using Dawson s bilateral manipulation technique with and without an anterior stop. The amount of frontal and sagittal deviations in relation to intercuspal position, the presence of pain and discomfort during manipulation, and the first occlusal contact in CR were analyzed. Kendall and Kappa tests with a 5% level of significance were used to determine agreement. Values for both intra- and interexaminer agreement were deemed good. The best results were obtained for frontal deviations and assessment of pain (or absence of it) during manipulation. Sagittal deviations showed the lowest agreement in both examinations. The authors concluded that a calibration program could be effective for intra- and interexaminer agreement when recording centric relation. However, caution is recommended when analyzing some isolated items.","PeriodicalId":35295,"journal":{"name":"Pesquisa odontologica brasileira = Brazilian oral research","volume":"17 3","pages":"286-91"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s1517-74912003000300015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24197883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

A randomized, controlled, crossover trial of oral midazolam and hydroxyzine for pediatric dental sedation. 一项口服咪达唑仑和羟嗪用于小儿牙科镇静的随机、对照、交叉试验。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300002

Alessandra Rodrigues de Almeida Lima, Luciane Ribeiro de Rezende Sucasas da Costa, Paulo Sérgio Sucasas da Costa

{"title":"A randomized, controlled, crossover trial of oral midazolam and hydroxyzine for pediatric dental sedation.","authors":"Alessandra Rodrigues de Almeida Lima, Luciane Ribeiro de Rezende Sucasas da Costa, Paulo Sérgio Sucasas da Costa","doi":"10.1590/s1517-74912003000300002","DOIUrl":"https://doi.org/10.1590/s1517-74912003000300002","url":null,"abstract":"The effectiveness of oral midazolam in pediatric dentistry is controversial. This randomized, controlled, crossover, double blind clinical trial was conducted in order to study the effect of midazolam, used either alone or in association with hydroxyzine, during child dental treatment. Thirty seven dental sedation sessions were carried out on 11 ASA I uncooperative children less than five years-old. In each appointment children were randomly assigned to groups: P - placebo, M - midazolam (1.0 mg/kg), or MH - midazolam (0.75 mg/kg) plus hydroxyzine (2.0 mg/kg). Vital signs (blood pressure, breathing rate, pulse and oxygen saturation) and behavior parameters (consciousness, crying, movement, overall behavior) were evaluated every 15 minutes. Friedman and Wilcoxon statistical tests were used to compare groups and different moments in the same group. Normal values of vital signs were usually registered. Heart rate increased in groups P and M as the session went on. Group M presented less crying and movement at the first 15 minutes of treatment. Group MH caused more drowsiness at the beginning of the session. Overall behavior was better in group M than in groups P or MH. Group M produced effective sedation in 77% of the cases, and group MH did so in 30.8%. It was concluded that midazolam was effective and safe, and its association with hydroxyzine did not lead to additional advantages in pediatric dental sedation.","PeriodicalId":35295,"journal":{"name":"Pesquisa odontologica brasileira = Brazilian oral research","volume":"17 3","pages":"206-11"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s1517-74912003000300002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24197405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 62

The influence of handling on the elasticity of addition silicone putties. 处理对添加硅酮腻子弹性的影响。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300010

Leonardo Eloy Rodrigues Filho, Antonio Muench, Carlos Francci, Angelika Katia Luebke, Andréia Aparecida Traina

{"title":"The influence of handling on the elasticity of addition silicone putties.","authors":"Leonardo Eloy Rodrigues Filho, Antonio Muench, Carlos Francci, Angelika Katia Luebke, Andréia Aparecida Traina","doi":"10.1590/s1517-74912003000300010","DOIUrl":"https://doi.org/10.1590/s1517-74912003000300010","url":null,"abstract":"The handling of vinyl polysiloxane (addition silicone) impression putties with latex gloves is said to interfere with the setting of these impression materials. The aim of this study is to evaluate the effect of handling techniques on the setting of vinyl polysiloxane impression putties using several types of gloves. The setting of these materials was evaluated by means of an elasticimeter. Four vinyl polysiloxane putty impression materials and five brands of gloves (one made of vinyl, one of synthetic rubber, and three of natural rubber) were studied. Based on the type of glove, they were previously washed or not, and a spatula was used or not for initial mixing (before handmixing). The vinyl, the synthetic and one of the natural rubber gloves did not require the previous washing procedure and/or the use of a spatula for initial mixing. Two other natural rubber gloves - depending on the silicone -, showed satisfactory results only when the initial mixing was performed with a spatula. It was concluded that setting inhibition depends on the kind of vinyl polysiloxane impression material and the kind of gloves used, but when the initial mixing was performed with the spatula this setting inhibition was overcome. The results of this study also showed that it is possible to associate cross-contamination control and satisfactory performance of addition silicone putty materials. When doubts arise from the compatibility between vinyl polysiloxane impression putties and gloves, the initial mixing should be performed with a spatula.","PeriodicalId":35295,"journal":{"name":"Pesquisa odontologica brasileira = Brazilian oral research","volume":"17 3","pages":"254-60"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s1517-74912003000300010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24197410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Evaluation of the permeability of the furcation area of deciduous molars conditioned with Er:YAG laser and cyanoacrylate. Er:YAG激光与氰基丙烯酸酯对乳牙分叉区通透性的影响。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300003

Adriene Mara Souza Lopes-Silva, José Luiz Lage-Marques

{"title":"Evaluation of the permeability of the furcation area of deciduous molars conditioned with Er:YAG laser and cyanoacrylate.","authors":"Adriene Mara Souza Lopes-Silva, José Luiz Lage-Marques","doi":"10.1590/s1517-74912003000300003","DOIUrl":"https://doi.org/10.1590/s1517-74912003000300003","url":null,"abstract":"The purpose of this study was to evaluate in vitro the dentin permeability of the deciduous pulp chamber floor after employing 2-octyl cyanoacrylate and Er:YAG laser. Twenty four deciduous molars were used, divided into four groups. After chemical-surgical preparation each group received a different treatment: Group 1 - control, without treatment; Group 2 - the floor of the pulp chamber was covered with a fine layer of 2-octyl cyanoacrylate; Group 3 - the floor of the pulp chamber was irradiated with Er:YAG laser (250 mJ, 10 Hz for 30 seconds, 80 J of energy and 320 pulses), and covered with a fine layer of 2-octyl cyanoacrylate; and Group 4 - the floor of the pulp chamber was irradiated with Er:YAG laser set at the parameters already described. After that the specimens received application of 0.5% methylene blue, for 15 minutes. The teeth were cut, photographed, and the digitalized images were analyzed using the ImageLab program. The results obtained were submitted to statistical analysis. Group 4 (Er:YAG) presented the largest averages in percentage of dye penetration area (19.5%), followed by Group 1 (11.1%), Group 3 (1.4%) and Group 2 (0.2%). The experimental model allowed to conclude that the specimens conditioned with 2-octyl cyanoacrylate (Group 2) and Er:YAG laser associated to 2-octyl cyanoacrylate (Group 3) presented a decrease in permeability, and the specimens treated with Er:YAG laser (Group 4) presented an increase in permeability of the analyzed area.","PeriodicalId":35295,"journal":{"name":"Pesquisa odontologica brasileira = Brazilian oral research","volume":"17 3","pages":"212-6"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s1517-74912003000300003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24197406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Yeasts from the oral cavity of children with AIDS: exoenzyme production and antifungal resistance. 来自艾滋病儿童口腔的酵母菌:外泌酶的产生和抗真菌耐药性。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300004

Vera Lúcia Bosco, Esther Goldenberg Birman, Arlete Emily Cury, Claudete Rodrigues Paula

{"title":"Yeasts from the oral cavity of children with AIDS: exoenzyme production and antifungal resistance.","authors":"Vera Lúcia Bosco, Esther Goldenberg Birman, Arlete Emily Cury, Claudete Rodrigues Paula","doi":"10.1590/s1517-74912003000300004","DOIUrl":"https://doi.org/10.1590/s1517-74912003000300004","url":null,"abstract":"The oral fungal microbiota of 30 children with AIDS, of both genders, aged from two to six years, receiving outpatient treatment, was evaluated and compared with that of a control group composed of 30 healthy subjects with matching ages and genders. Virulence factors, such as exoenzyme production, and susceptibility to five antifungal agents using an E-Test kit were evaluated. C. albicans predominated over other species in the AIDS group, showing a higher production of proteinase and phospholipase when compared with that observed in the control group. In this study few clinical manifestations of and low selectivity for C. albicans (23.3%) were observed in the AIDS group. The enzymatic studies showed that 53.8% of the AIDS strains were strongly positive whereas only 33.3% of the non-AIDS strains were positive. Amphotericin B was the most effective drug among the antifungal agents tested against C. albicans. The frequency, selectivity and level of exoenzyme production by C. albicans suggest a higher pathogenicity in the AIDS children than in the control children.","PeriodicalId":35295,"journal":{"name":"Pesquisa odontologica brasileira = Brazilian oral research","volume":"17 3","pages":"217-22"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24197407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 33

A modified pH-cycling model to evaluate fluoride effect on enamel demineralization. 一种改进的ph循环模型评价氟化物对牙釉质脱矿的影响。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300008

Rosane Maria Orth Argenta, Cinthia Pereira Machado Tabchoury, Jaime Aparecido Cury

{"title":"A modified pH-cycling model to evaluate fluoride effect on enamel demineralization.","authors":"Rosane Maria Orth Argenta, Cinthia Pereira Machado Tabchoury, Jaime Aparecido Cury","doi":"10.1590/s1517-74912003000300008","DOIUrl":"https://doi.org/10.1590/s1517-74912003000300008","url":null,"abstract":"Since in vitro pH-cycling models are widely used to study dental caries, they should allow evaluations of fluoride effect on early stages of caries development. Therefore, acid etching on enamel surface must be avoided, enabling surface microhardness (SMH) analysis. In the present study, the pH-cycling model originally described by Featherstone et al.9 (1986) was modified to preserve the enamel surface and to produce early carious lesions that could be evaluated using SMH and cross-sectional microhardness (CSMH) measurements. In order to validate this modified model, a dose-response evaluation with fluoride was made. Human enamel blocks with known SMH were submitted to such regimen with the following treatments: distilled deionized water (DDW; control) and solutions containing 70, 140 and 280 ppm F. Data from %SMH change and deltaZ (mineral loss) showed a statistically significant negative correlation between F concentration in treatment solutions and mineral loss. In conclusion, the modified pH-cycling model allowed the evaluation of changes on the outermost enamel layer during caries development, and a dose-response effect of fluoride reducing enamel demineralization was observed.","PeriodicalId":35295,"journal":{"name":"Pesquisa odontologica brasileira = Brazilian oral research","volume":"17 3","pages":"241-6"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1590/s1517-74912003000300008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24197356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 116

Evaluation of the bending strength of rigid internal fixation with absorbable and metallic screws in mandibular ramus sagittal split osteotomy: in vitro study. 可吸收螺钉与金属螺钉内固定在下颌支矢状劈裂截骨术中的弯曲强度评价:体外研究。

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-07-01 Epub Date: 2003-12-16 DOI: 10.1590/s1517-74912003000300012

Petrus Pereira Gomes, Rubens Guimarães Filho, Renato Mazzonetto

引用次数: 15

Unha como biomarcador de exposição subcrônica ao flúor a partir do dentifrício fluoretado em crianças de 2 - 3 anos 指甲作为2 - 3岁儿童亚慢性氟化物牙膏暴露的生物标志物

Pesquisa odontologica brasileira = Brazilian oral research Pub Date : 2003-06-18 DOI: 10.11606/D.25.2003.TDE-16032005-091317

M. Rodrigues

引用次数: 0