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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
251

Selamento de lesões de cárie proximal com infiltrante resinoso : acompanhamento de 3 anos de um estudo clínico randomizado

Pereira Júnior, José Carlos D'Ornellas January 2015 (has links)
O uso do infiltrante resinoso tem sido apontado como uma abordagem promissora para preencher a lacuna entre o tratamento não-invasivo e o tratamento invasivo em lesões proximais não-cavitadas (LPNC). No entanto, estudos clínicos não são conclusivos sobre o efeito deste tratamento na redução da progressão dessas lesões uma vez que foram realizados em indivíduos cuja atividade cárie não foi controlada. Desta forma, este estudo teve por objetivo avaliar a eficácia do uso do infiltrante resinoso em LPNC na redução da progresão dessas lesões ao longo de um período de 3 anos em um grupo de indivíduos que receberam tratamento e controle da doença cárie. Vinte e dois indivíduos cárie-ativos que possuíam pelo menos um par de LPNC em dentes posteriores foram selecionados para este estudo, totalizando 36 pares de lesões radiograficamente classificadas de metade externa de esmalte até junção amelo-dentinária. Em um delineamento do tipo boca-dividida, as lesões foram alocadas aleatoriamente para tratamento teste (uso do infiltrante resinoso – ICON, DMG, Hamburg, Germany) ou tratamento placebo, de forma que cada par de lesões recebeu os dois tratamentos. Após 3 anos, essas lesões foram novamente analisadas e sua progressão registrada radiograficamente pela análise pareada das radiografias iniciais com as radiografias após 3 anos. Índice de sangramento gengival (ISG) e atividade de cárie foram avaliados no início do estudo e aos 3 anos de acompanhamento. Diferenças na progressão de lesões entre as superfícies infiltradas e aquelas que receberam tratamento placebo foram comparadas pelo teste de McNemar. Dezessete individuos (27 pares de lesões) foram re-avaliados após 3 anos (drop-out de 22,7%). Não foi encontrada diferença no ISG dos indivíduos na comparação entre o início do estudo e aos 3 anos de acompanhamento. No entanto, três vezes menos sangramento gengival foi observado nas superfícies proximais de interesse (que receberam o infiltrante ou o tratamento placebo). Somente 4 indivíduos apresentaram atividade de cárie aos 3 anos. Em relação à progressão das lesões, 7,4% das lesões infiltradas (2/27) progrediram, enquanto que 18,5% das lesões que receberam tratamento placebo (5/27) apresentaram progressão, não havendo diferença estatística entre os grupos (p=0,453). Os resultados do presente estudo sugerem que nenhum efeito adicional na redução da progressão de LPNC foi encontrado após o uso de infiltrante resinoso em comparação a grupo placebo uma vez que a atividade de cárie é controlada ao nível individual. / Resin infiltration technique of carious lesion has been claimed as a promising approach to fill the gap between non-invasive and operative treatment on the management of non-cavitated proximal lesions (NCPL). However, clinical studies are inconclusive about the effect of this treatment on the reduction NCPL progression since they were performed in a group of subjects whose caries activity was not controlled. Therefore, this study aimed to assess the efficacy of resin infiltration of NCPL over a 3-year period in a group of individuals who received treatment and control of carious activity in order to better clarify the role of lesion infiltration on the management of NCPL. Twenty-two caries-active subjects that possessed at least a pair of NCPL in posterior teeth were selected for this study totalizing 36 pairs of lesion radiographically classified from outer half of enamel to enamel-dentin junction. In a split-mouth design, lesions were randomly allocated to test treatment (resin infiltration) or placebo treatment. At 3-year follow-up, the studied lesions were radiographically analyzed and the radiolucency progression registered. Lesion progression was then determined by pair-wise comparison. Gingival bleeding index (GBI) was also assessed at the beginning of the study and at the follow-up. Lesion activity was determined at 3 years follow-up. Differences in number of progressing lesions between test and placebo- treated surfaces were compared using McNemar test. Seven-teen subjects (27 pairs of lesions) were followed-up (drop-out rate of 22.7%). No difference was found on subject’s median GBI between the baseline and at its follow-up. However, 3 times less gingival bleeding of test and placebo-treated proximal surfaces was observed at the follow-up. Only 4 subjects were caries active at the follow-up. In the test group, 2/27 (7.4%) lesions and in the placebo group 5/27 (18.5%) lesions had progressed. No statistical difference was observed between the studied groups (p=0.453). The results of the present study suggest no additional effect of resin infiltration on the reduction of lesion progression when compared with placebo-treated lesions once caries activity is controlled at an individual level.
252

Avaliação clínica longitudinal de restaurações de uma resina composta bulk-fill em dentes posteriores / Longitudinal clinical evaluation of restorations of a bulk-fill composite on posterior teeth

Rodrigues, Roger Borges January 2016 (has links)
Objetivos: O objetivo deste ensaio clínico randomizado foi avaliar o comportamento de restaurações de resina composta bulk-fill em dentes posteriores (classes I e II). Metodologia: Dezessete pacientes que necessitavam de restaurações em pelo menos dois dentes posteriores foram selecionados para participar do estudo. As causas para indicação das restaurações foram: substituição de restauração deficiente de amálgama ou resina composta e/ou lesão de cárie. Em cada paciente foram realizadas duas restaurações. Randomicamente, uma cavidade foi restaurada com a resina nanohíbrida Esthet-X HD (grupo controle) e a outra restaurada com a resina Esthet-X HD associada à resina de baixa contração Surefil SDR Flow (grupo teste). Em ambos os grupos, um sistema adesivo convencional de dois passos (XP Bond) foi utilizado. Todos os pacientes receberam tratamento global para a atividade cariosa. Após um período de quatro anos, a qualidade das restaurações foi avaliada por 1 examinador previamente calibrado, através de uma modificação do método USPHS e através do método FDI. Os dados obtidos foram submetidos à análise estatística pelo teste não-paramétrico Mann-Whitney (p<0,05) e a concordância intra-observador avaliada através de teste Kappa. Resultados: No quarto ano de acompanhamento, 26 dentes (18 restaurações classe I e 8 classe II) foram avaliadas, e não foram observadas diferenças estatisticamente significantes entre as restaurações dos grupos controle e teste para os métodos de avaliação utilizados. Não houve falhas em nenhuma das restaurações ao longo do tempo. Conclusão: A qualidade das restaurações classe I e II com resina bulk-fill foi semelhante à das restaurações com resina nanohíbrida convencional. A técnica com resina bulk-fill mostrou bom desempenho clínico tão bom quanto a convencional durante os 4 anos de acompanhamento. / Objectives: The objective of this randomized clinical trial was to evaluate the behavior of bulk-fill composite restorations in posterior teeth (classes I and II). Methodology: Seventeen patients who required restorations on at least two posterior teeth were selected to participate in the study. The causes for indication of restorations were: replacement of deficient amalgam or composite resin restoration and/or caries lesion. In each patient, two restorations were performed. Randomly, one cavity was restored with Esthet-X HD nanohybrid composite (control group) and the other was restored with Esthet-X HD resin associated with the bulk-fill composite Surefil SDR Flow (test group). In both groups, a two-step total-etch adhesive system (XP Bond) was used. All patients received global treatment for carious activity. After a period of four years, the quality of the restorations was evaluated by a previously calibrated examiner, through a modification of the USPHS method and through the FDI method. The data were submitted to statistical analysis by the non-parametric Mann-Whitney test (p <0.05) and the intra-observer agreement was evaluated by Kappa test. Results: At the 4-year follow-up, 26 teeth (18 class I and 8 class II restorations) were evaluated, and no statistically significant differences between control and test groups were observed for both evaluation methods used. There were no failures in any of the restorations over time. Conclusion: The quality of class I and II restorations with bulk-fill resin was similar to that of conventional nanohybrid resin. The bulk-fill composite technique showed good clinical performance as well as the conventional one during the 4 years of follow-up.
253

An analysis of the impact of the admission of hearsay evidence on the accused's right to a fair trial

Mhlanga, Pete Vusi 10 1900 (has links)
Public, Constitutional and International Law / LLM (with specialization in Criminal and Procedural Law)
254

Kriminalistický experiment / Criminalistic Experiment

Svoboda, Edvin January 2018 (has links)
The theme of this diploma thesis is the Criminalistic Experiment. The first chapter deals with more general issues. It states what is meant by the experiment in the normal sense and then explains the difference between experiment and the criminalistic experiment. The next chapter discusses the essence of the criminalistic experiment. The second chapter describes the legal treatment of the investigative trial, especially in Act No. 141/1961 Coll., Criminal Procedure Code. The issue of people participating in the investigative trial is also easily mentioned. The third chapter focuses on the historical aspects of the investigative trial, the comparison of several criminologists and their view on the subject of a criminalistic experiment. Next, the fourth chapter describes the investigative trial in comparison with similar forensic operations, and reconstruction, clearance testimony on the spot, recognition, and inspection of forensic expertise. The fifth chapter focuses on the essence, purpose, and objectives of the investigative attempt of the forensic science. The sixth chapter divides the investigative trial into several types, in terms of when they occur or according to the facts. The seventh chapter discusses in greater detail the questions pertaining to participants in the investigative trial....
255

ALTERNATIVE FEEDING STRATEGIES TO MAXIMIZE MARINE FEEDSTUFF REPLACEMENT IN LARGEMOUTH BASS Micropterus salmoides CULTURE WHILE MAINTAINING PRODUCTION PERFORMANCE

Coursey, Andrew Richard 01 August 2011 (has links)
ANDREW R. COURSEY, for the Master of Science degree in Zoology, presented 24 June 2011 at Southern Illinois University Carbondale TITLE: ALTERNATIVE FEEDING STRATEGIES TO MAXIMIZE MARINE FEEDSTUFF REPLACEMENT IN LARGEMOUTH BASS Micropterus salmoides CULTURE WHILE MAINTAINING PRODUCTION PERFORMANCE Advisors: Chris Kohler and Jesse Trushenski Harvest of marine resources for feedstuff production is at its maximum sustainable yield and alternative feedstuffs are needed to supply livestock production for an expanding human population having a growing desire for seafood. Aquaculture is currently the fastest growing sector of agriculture, but the high cost and limited supplies of marine feedstuffs for aquafeeds could ultimately limit production of foodfish. Replacement of marine feedstuffs poses a dilemma, however, as replacement of fish meal can affect animal growth, and replacement of fish oil in aquafeeds leads to altered fillet fatty acid profiles without the maximum benefit of high omega-3 (n-3) and long-chain polyunsaturated fatty acids (LC-PUFA) content. Two feeding trials were conducted to determine if poultry byproducts can replace fish meal and fish oil in diets for largemouth bass Micropterus salmoides without affecting production performance or fillet fatty acid composition. Poultry byproducts were able to replace fish meal and fish oil while maintaining production performance of largemouth bass, however, the altered fatty acid profiles of the feeds were reflected in the fillets. Finishing diets containing high levels of fish oil were implemented to restore n-3 and LC PUFA concentrations in the fillet. Twelve weeks of finishing proved suitable to partially restore n-3 and LC-PUFA concentrations while limiting the overall use of marine resources in the largemouth bass production cycle.
256

Využitelnost geocachingu ve výuce zeměpisu na 2. stupni ZŠ (s praktickou ukázkou při výuce místního regionu Velešínska) / Usability of geocaching game in education of geography for 2nd stage primary school students (with the aspects of practical use in education of Velešín area)

PŘIBYL, Cyril January 2013 (has links)
The main aim of my diploma thesis is to propose educational nature trails in the area of Velešín, by using game geocaching. Educational nature trails are designed for students of 2nd stage primary school. Diploma thesis is the implementation of two of the fourth proposed educational nature trials in the area of Velešín, aimed to local area knowledge.
257

Predicting Variation in Responsiveness to the Family Check-Up in Early Childhood: A Mixture Model Approach

January 2016 (has links)
abstract: The present study applied latent class analysis to a family-centered prevention trial in early childhood to identify subgroups of families with differential responsiveness to the Family Check-up (FCU) intervention. The sample included 731 families of 2-year- olds randomized to the FCU or control and followed through age five with yearly follow up assessments (Dishion et al., 2014; Shaw et al., 2015). A two-step mixture model was used to examine whether specific constellations of family characteristics at age 2 (baseline) were related to intervention response at age 3, 4, and 5. The first step empirically identified latent classes of families based on a variety of demographic and adjustment variables selected on the basis of previous research on predictors of response to the FCU and parent training in general, as well as on the clinical observations of FCU implementers. The second step modeled the effect of the FCU on longitudinal change in children's problem behavior in each of the empirically derived latent classes. Results suggested a five-class solution, where a significant intervention effect of moderate-to- large size was observed in one of the five classes. The families within the responsive class were characterized by child neglect, legal problems, and mental health issues. Pairwise comparisons revealed that the intervention effect was significantly greater in this class of families than in two other classes that were generally less at risk for the development of disruptive behavior problems, and post hoc analyses partially supported these results. Thus, results indicated that the FCU was most successful in reducing child problem behavior in the highly distressed group of families. We conclude by discussing the potential practical utility of these results and emphasizing the need for future research to evaluate this approach's predictive accuracy. / Dissertation/Thesis / Masters Thesis Psychology 2016
258

Biomembrana de celulose versus curativo com colagenase no tratamento de úlceras venosas crônicas: ensaio clínico randomizado, aberto e controlado / Cellulose biomembrane versus collagenase dressing in the treatment of chronic venous ulcers: randomized, open, controlled clinical trial

Colenci, Raquel [UNESP] 11 December 2017 (has links)
Submitted by Raquel Colenci null (raquelcolenci@fmb.unesp.br) on 2018-02-07T01:05:02Z No. of bitstreams: 1 Biomembrana de celulose versus curativo com colagenase no tratamento de úlceras venosas crônicas ensaio clínico randomizado, aberto e controlado.pdf: 2086004 bytes, checksum: 5011bc7aa0b1aeb96375f91e925039b2 (MD5) / Approved for entry into archive by ROSANGELA APARECIDA LOBO null (rosangelalobo@btu.unesp.br) on 2018-02-08T10:57:04Z (GMT) No. of bitstreams: 1 colenci_r_dr_bot.pdf: 2086004 bytes, checksum: 5011bc7aa0b1aeb96375f91e925039b2 (MD5) / Made available in DSpace on 2018-02-08T10:57:04Z (GMT). No. of bitstreams: 1 colenci_r_dr_bot.pdf: 2086004 bytes, checksum: 5011bc7aa0b1aeb96375f91e925039b2 (MD5) Previous issue date: 2017-12-11 / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Introdução: A biomembrana produzida com celulose é usada como pele substituta temporária no tratamento de úlceras de difícil cicatrização. Esse estudo avaliou a eficácia e segurança da biomembrana de celulose comparada ao curativo com colagenase para a redução de área de úlceras venosas, durante um período de 90 dias. Método: ensaio clínico controlado, randomizado e aberto com dois grupos de tratamento paralelos - grupo biomembrana de celulose e grupo colagenase – em participantes com úlcera venosa. Os dois grupos receberam terapia compressiva. O desfecho primário foi redução da área da úlcera (em centímetros quadrados) depois de 90 dias de tratamento (T90). Os desfechos secundários foram cicatrização, redução de tecidos desvitalizados, redução de exsudato, angiogênese, mudanças na qualidade de vida e segurança. A análise estatística foi por intenção de tratar e os dados foram analisados utilizando o software SPSS 20.0. Foi considerado significante p<0,05. Resultados: Foram randomizados 46 participantes com 73 úlceras venosas, 21 participantes com 36 úlceras no grupo colagenase e 25 participantes com 37 úlceras no grupo biomembrana. Houve uma redução de área da úlcera no T90 nos dois grupos, sem diferença estatística entre as duas intervenções (p=0,66). Cicatrização completa no T90 ocorreu em sete úlceras no grupo colagenase e 12 úlceras no grupo biomembrana, sem diferença significante (p= 0,20); contudo, a biomembrana promoveu uma maior proporção de cicatrização precoce (p=0,02). Houve melhora na vitalidade do leito e na qualidade de vida em função do tempo (p<0,01), porém sem diferença significante entre os grupos. A análise do marcador CD34 mostrou que a fração vascular aumentou nos dois grupos (p<0,01); contudo, o nível foi maior no grupo biomembrana (p<0,05). Os eventos adversos não foram considerados relacionados aos produtos. Conclusões: A biomembrana de celulose é efetiva e segura no tratamento de úlceras venosas associada à terapia compressiva, com resultados similares aos do tratamento com colagenase. Por ser unicêntrico, foi difícil a inclusão de maior número de participantes e os resultados precisam ser confirmados por ensaios clínicos com maior tamanho amostral e multicêntricos. Não foi possível realizar cegamento dos participantes e do pesquisador devido ao aspecto diferente dos dois tipos de curativos. / Background: A biomembrane produced from cellulose is used as temporary replacement skin in the treatment of ulcers with healing difficulties. This study assessed the efficacy and safety of cellulose biomembrane compared to those of a collagenase dressing in decreasing venous ulcer area during a 90 day period. Methods: controlled, randomized and open clinical trial with two parallel treatment groups - a cellulose biomembrane group and a collagenase group - in participants with venous ulcer. Both groups received compression therapy. The primary outcome was a reduction in ulcer area (square centimeters) after 90 days of treatment (T90). Secondary outcomes were healing status, devitalized tissue reduction, exudate reduction, angiogenesis, quality of life change and safety. The statistical analysis was of intention to treat, and data were analyzed using the software SPSS 20.0. A p<0.05 value was considered significant. Results: We randomized 46 participants with 73 venous ulcers and 21 participants with 36 ulcers in the collagenase group and 25 participants with 37 ulcers in the biomembrane group. There was an ulcer area reduction at T90 in both groups, but the difference was not significant (p=0.66). Complete healing prior to T90 occurred in seven ulcers in the collagenase group and 12 ulcers in the biomembrane group, without a significant difference (p= 0.20); however, the biomembrane promoted a greater proportion of precocious healing (p=0.02). There was improved bed vitality and quality of life as a function of time (p<0.01), but there was no significant difference between the groups. The marker CD34 analysis showed that the vascular fraction increased in both groups (p<0.01); however, the level was higher in the biomembrane group (p<0.05). No adverse events were considered related to the products. Conclusions: Cellulose biomembrane is effective and safe in the treatment of venous ulcers associated with compressive therapy, with similar results to those of collagenase treatment. Because it was unicentric, it was difficult to include a larger number of participants and the results need to be confirmed by clinical trials with larger sample size and multicentric. It was not possible to blind the participants and the researcher due to the different aspect of the two types of dressings / 2014/05533-0
259

Avaliação clínica longitudinal de restaurações de uma resina composta bulk-fill em dentes posteriores / Longitudinal clinical evaluation of restorations of a bulk-fill composite on posterior teeth

Rodrigues, Roger Borges January 2016 (has links)
Objetivos: O objetivo deste ensaio clínico randomizado foi avaliar o comportamento de restaurações de resina composta bulk-fill em dentes posteriores (classes I e II). Metodologia: Dezessete pacientes que necessitavam de restaurações em pelo menos dois dentes posteriores foram selecionados para participar do estudo. As causas para indicação das restaurações foram: substituição de restauração deficiente de amálgama ou resina composta e/ou lesão de cárie. Em cada paciente foram realizadas duas restaurações. Randomicamente, uma cavidade foi restaurada com a resina nanohíbrida Esthet-X HD (grupo controle) e a outra restaurada com a resina Esthet-X HD associada à resina de baixa contração Surefil SDR Flow (grupo teste). Em ambos os grupos, um sistema adesivo convencional de dois passos (XP Bond) foi utilizado. Todos os pacientes receberam tratamento global para a atividade cariosa. Após um período de quatro anos, a qualidade das restaurações foi avaliada por 1 examinador previamente calibrado, através de uma modificação do método USPHS e através do método FDI. Os dados obtidos foram submetidos à análise estatística pelo teste não-paramétrico Mann-Whitney (p<0,05) e a concordância intra-observador avaliada através de teste Kappa. Resultados: No quarto ano de acompanhamento, 26 dentes (18 restaurações classe I e 8 classe II) foram avaliadas, e não foram observadas diferenças estatisticamente significantes entre as restaurações dos grupos controle e teste para os métodos de avaliação utilizados. Não houve falhas em nenhuma das restaurações ao longo do tempo. Conclusão: A qualidade das restaurações classe I e II com resina bulk-fill foi semelhante à das restaurações com resina nanohíbrida convencional. A técnica com resina bulk-fill mostrou bom desempenho clínico tão bom quanto a convencional durante os 4 anos de acompanhamento. / Objectives: The objective of this randomized clinical trial was to evaluate the behavior of bulk-fill composite restorations in posterior teeth (classes I and II). Methodology: Seventeen patients who required restorations on at least two posterior teeth were selected to participate in the study. The causes for indication of restorations were: replacement of deficient amalgam or composite resin restoration and/or caries lesion. In each patient, two restorations were performed. Randomly, one cavity was restored with Esthet-X HD nanohybrid composite (control group) and the other was restored with Esthet-X HD resin associated with the bulk-fill composite Surefil SDR Flow (test group). In both groups, a two-step total-etch adhesive system (XP Bond) was used. All patients received global treatment for carious activity. After a period of four years, the quality of the restorations was evaluated by a previously calibrated examiner, through a modification of the USPHS method and through the FDI method. The data were submitted to statistical analysis by the non-parametric Mann-Whitney test (p <0.05) and the intra-observer agreement was evaluated by Kappa test. Results: At the 4-year follow-up, 26 teeth (18 class I and 8 class II restorations) were evaluated, and no statistically significant differences between control and test groups were observed for both evaluation methods used. There were no failures in any of the restorations over time. Conclusion: The quality of class I and II restorations with bulk-fill resin was similar to that of conventional nanohybrid resin. The bulk-fill composite technique showed good clinical performance as well as the conventional one during the 4 years of follow-up.
260

Selamento de lesões de cárie proximal com infiltrante resinoso : acompanhamento de 3 anos de um estudo clínico randomizado

Pereira Júnior, José Carlos D'Ornellas January 2015 (has links)
O uso do infiltrante resinoso tem sido apontado como uma abordagem promissora para preencher a lacuna entre o tratamento não-invasivo e o tratamento invasivo em lesões proximais não-cavitadas (LPNC). No entanto, estudos clínicos não são conclusivos sobre o efeito deste tratamento na redução da progressão dessas lesões uma vez que foram realizados em indivíduos cuja atividade cárie não foi controlada. Desta forma, este estudo teve por objetivo avaliar a eficácia do uso do infiltrante resinoso em LPNC na redução da progresão dessas lesões ao longo de um período de 3 anos em um grupo de indivíduos que receberam tratamento e controle da doença cárie. Vinte e dois indivíduos cárie-ativos que possuíam pelo menos um par de LPNC em dentes posteriores foram selecionados para este estudo, totalizando 36 pares de lesões radiograficamente classificadas de metade externa de esmalte até junção amelo-dentinária. Em um delineamento do tipo boca-dividida, as lesões foram alocadas aleatoriamente para tratamento teste (uso do infiltrante resinoso – ICON, DMG, Hamburg, Germany) ou tratamento placebo, de forma que cada par de lesões recebeu os dois tratamentos. Após 3 anos, essas lesões foram novamente analisadas e sua progressão registrada radiograficamente pela análise pareada das radiografias iniciais com as radiografias após 3 anos. Índice de sangramento gengival (ISG) e atividade de cárie foram avaliados no início do estudo e aos 3 anos de acompanhamento. Diferenças na progressão de lesões entre as superfícies infiltradas e aquelas que receberam tratamento placebo foram comparadas pelo teste de McNemar. Dezessete individuos (27 pares de lesões) foram re-avaliados após 3 anos (drop-out de 22,7%). Não foi encontrada diferença no ISG dos indivíduos na comparação entre o início do estudo e aos 3 anos de acompanhamento. No entanto, três vezes menos sangramento gengival foi observado nas superfícies proximais de interesse (que receberam o infiltrante ou o tratamento placebo). Somente 4 indivíduos apresentaram atividade de cárie aos 3 anos. Em relação à progressão das lesões, 7,4% das lesões infiltradas (2/27) progrediram, enquanto que 18,5% das lesões que receberam tratamento placebo (5/27) apresentaram progressão, não havendo diferença estatística entre os grupos (p=0,453). Os resultados do presente estudo sugerem que nenhum efeito adicional na redução da progressão de LPNC foi encontrado após o uso de infiltrante resinoso em comparação a grupo placebo uma vez que a atividade de cárie é controlada ao nível individual. / Resin infiltration technique of carious lesion has been claimed as a promising approach to fill the gap between non-invasive and operative treatment on the management of non-cavitated proximal lesions (NCPL). However, clinical studies are inconclusive about the effect of this treatment on the reduction NCPL progression since they were performed in a group of subjects whose caries activity was not controlled. Therefore, this study aimed to assess the efficacy of resin infiltration of NCPL over a 3-year period in a group of individuals who received treatment and control of carious activity in order to better clarify the role of lesion infiltration on the management of NCPL. Twenty-two caries-active subjects that possessed at least a pair of NCPL in posterior teeth were selected for this study totalizing 36 pairs of lesion radiographically classified from outer half of enamel to enamel-dentin junction. In a split-mouth design, lesions were randomly allocated to test treatment (resin infiltration) or placebo treatment. At 3-year follow-up, the studied lesions were radiographically analyzed and the radiolucency progression registered. Lesion progression was then determined by pair-wise comparison. Gingival bleeding index (GBI) was also assessed at the beginning of the study and at the follow-up. Lesion activity was determined at 3 years follow-up. Differences in number of progressing lesions between test and placebo- treated surfaces were compared using McNemar test. Seven-teen subjects (27 pairs of lesions) were followed-up (drop-out rate of 22.7%). No difference was found on subject’s median GBI between the baseline and at its follow-up. However, 3 times less gingival bleeding of test and placebo-treated proximal surfaces was observed at the follow-up. Only 4 subjects were caries active at the follow-up. In the test group, 2/27 (7.4%) lesions and in the placebo group 5/27 (18.5%) lesions had progressed. No statistical difference was observed between the studied groups (p=0.453). The results of the present study suggest no additional effect of resin infiltration on the reduction of lesion progression when compared with placebo-treated lesions once caries activity is controlled at an individual level.

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