Thèses sur le sujet « Restoration trials »
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Adkins, Suzanne Craig. « Population Biology and Restoration of Intertidal Cockle Beds ». Thesis, University of Canterbury. School of Biological Sciences, 2012. http://hdl.handle.net/10092/7794.
Texte intégralGILARDELLI, FEDERICA. « Vegetation dynamics and restoration trials in limestone quarries : the botticino case study (Brescia, Italy) ». Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/42003.
Texte intégralMichel, James T. Helfield James M. « Seed rain and selected species germination and growth trials : implications for natural and augmented revegetation of post-dam Elwha River floodplain and reservoir sediments / ». Online version, 2010. http://content.wwu.edu/cdm4/item_viewer.php?CISOROOT=/theses&CISOPTR=361&CISOBOX=1&REC=5.
Texte intégralKeefer, Chelsea Elizabeth. « Use of Plant Growth Regulators to Expand the Period of Sagebrush Seed Germination and Reduce the Risk of Restoration Failure : Laboratory Trials ». BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/8576.
Texte intégralCamargo, Márcio Neves. « Efeito da aplicação prolongada do sistema adesivo convencional de dois passos na qualidade de restaurações de resina composta em lesões cervicais não cariosas : Ensaio clínico controlado, randomizado, duplo cego ». Universidade Estadual do Oeste do Paraná, 2018. http://tede.unioeste.br/handle/tede/3879.
Texte intégralMade available in DSpace on 2018-08-23T17:52:03Z (GMT). No. of bitstreams: 2 Márcio_Camargo2018.pdf: 1289257 bytes, checksum: 6b195c00237854a0b325ec5a5c953cac (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-05-14
This double-blind randomized clinical trial evaluates the influence of increased application time in two adhesive system two-step etch-and-rinse (Peak® Universal Bond (P); Ultradent Products Ind and Single Link (SL); Angelus Dental Products Industry) applied in non-carious cervical lesions (NCCLs). Methods: A total of 219 restorations were randomly placed in 35 patients according to the following groups: P1 - applied according to the manufacturer’s; P2X – applied for the double time; SL1 and SL2X (the same application mode). The resin composite Amelogen (Ultradent) was placed incrementally. The restorations were evaluated immediately (baseline) and 6 months, using the FDI and USPHS criteria. Statistical analyses were performed using appropriate tests (=0.05). Results: Twenty-four restorations were lost at 6 months (4 for P1, 2 for P2X, 9 for SL1 and 9 for SL2X) (p < 0.05 between groups). Post-operative sensitivity wasn’t observed in any of the recall periods. Thrity-five restorations were considered to have minor discrepancies in marginal adaptation at the 6-month recall using the FDI criteria (8 for P1, 7 for P2X, 12 for SL1 and 8 for SL2X; p > 0.05 between groups). Ten restorations were considered to have minor discrepancies in marginal discoloration at the 6-month recall (2 for P1, 1 for P2X, 3 for SL1 and 2 for SL2X; p > 0.05 between groups). Conclusion: The increased application time of adhesive system two-step etch-and-rinse didn’t improve the clinical behavior of composite restorations placed in NCCLs. In the meantime, clinical behavior may be influenced by the composition of adhesive systems.
Este ensaio clínico controlado randomizado, duplo cego avaliou a influência do aumento do tempo de aplicação em dois sistemas adesivos convencionais de dois passos, Peak® Universal Bond (P) (Ultradent Products Ind) e Single Link (SL) (Angelus Dental Products Industry) aplicados para restaurar lesões cervicais não cariosas (LCNC). Material e Método: No desenho experimental um total de 219 restaurações foram distribuídas aleatoriamente em 35 pacientes de acordo com os seguintes grupos: P1 e SL1 - aplicados de acordo com o fabricante por 10s; P2X e SL2X - aplicados por 20 s. A resina composta Amelogen (Ultradent) foi colocada de forma incremental. As restaurações foram avaliadas imediatamente (baseline), e em 6 meses, utilizando os critérios FDI e USPHS. As análises estatísticas foram realizadas utilizando testes de Friedman e Mc Nemar (α = 0,05). Resultado: Vinte e quatro restaurações foram perdidas aos 6 meses (4 para P1, 2 para P2X, 9 para SL1 e 9 para SL2X) (p<0,05). A sensibilidade pós-operatória não foi relatada durante a avaliação. Trinta e cinco restaurações apresentaram pequenas discrepâncias na adaptação marginal usando os critérios FDI (8 para P1, 7 para P2X, 12 para SL1 e 8 para SL2X; p>0,05 entre os grupos). Oito restaurações apresentaram pequena discrepância no manchamento marginal na avaliação de 6 meses (2 para P1, 1 para P2X, 3 para SL1 e 2 para SL2X; p> 0,05 entre grupos). Conclusão: Aumentar o tempo de aplicação do sistema adesivo convencional de dois passos não melhora o desempenho clínico das restaurações em resina compostas realizadas em LCNCs. Entretanto, este desempenho/performance pode ser influenciado pela composição dos sistemas adesivos.
Benetti, Ana Raquel. « Avaliação clínica e laboratorial de resina composta em função da fotoativação com diferentes fontes de luz e densidades de potência ». Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/25/25131/tde-11102007-100914/.
Texte intégralThe aim of this study was to evaluate the clinical and laboratorial performance of a resin composite light-cured with different light-curing units and power densities, at a standard energy density level. Degree of conversion of the resin composite was determined by Fourier transformed infrared spectroscopy. The degree of softening of the resin composite in ethanol was obtained by Wallace hardness measurements before and after storage in a 75% ethanol solution. Wear of the resin composite was acquired by two methods: ACTA wear and toothbrush abrasion. Additionally, the clinical performance of resin composite restorations submitted to the same light-curing protocols was followed up. Class I resin composite restorations were light-cured using either halogen lamp or light emitting diode at 300 mW/cm2 during 40 seconds or 600 mW/cm2 during 20 seconds. Restorations were evaluated immediately and after 6 and 12 months by two calibrated dentists, according to the modified Ryge criteria. The laboratorial data were submitted to two-way analysis of variance and Newman- Keuls multiple comparison test, or t-test. Clinical data were analyzed by Kappa, Fisher and McNemar tests (\'alpha\' = 0.05). No significant differences were observed for the different light-curing protocols in the degree of conversion, degree of softening in ethanol, and wear produced by the ACTA method (p > 0.05). For the toothbrush abrasion test, irradiation with the light emitting diode unit for 40 seconds at 300 mW/cm2 resulted in higher wear than the other light-curing protocols (p < 0.05). No significant differences were detected at the one-year clinical follow-up of the resin composite restorations submitted to the various light-curing protocols investigated in this study (p > 0.05).
Thomas, Tracy A. « Predicting restoration of competence to stand trial demographic, clinical, and legal variables / ». Morgantown, W. Va. : [West Virginia University Libraries], 2010. http://hdl.handle.net/10450/10878.
Texte intégralTitle from document title page. Document formatted into pages; contains v, 56 p. : ill. Includes abstract. Includes bibliographical references (p. 30-35).
Tang, Josephine Jessica. « An Examination of Competency Restoration in a South Florida Community-Based Setting ». Thesis, NSUWorks, 2010. https://nsuworks.nova.edu/cps_stuetd/70.
Texte intégralRodrigues, Roger Borges. « Avaliação clínica longitudinal de restaurações de uma resina composta bulk-fill em dentes posteriores ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/152664.
Texte intégralObjectives: 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.
Pereira, Joanna Tatith. « Longevidade de restaurações adesivas em dentes decíduos posteriores submetidos à remoção total ou seletiva de tecido cariado : um estudo multicêntrico ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2016. http://hdl.handle.net/10183/152662.
Texte intégralThe selective caries removal technique (SCR) for active deep carious lesions in deciduous and permanent teeth is already a consensus in the literature and is supported by studies that demonstrate excellent clinical, radiographic and microbiological results. However, the longevity of restorations performed after the SCR, mainly in primary dentition, has generated some doubts and concerns about its performance, deserving clarification. This multicenter study aimed to compare the success rate of adhesive restorations performed on posterior deciduous teeth after total or selective caries removal over 30 months Methods: Children between 4 - 8 years old with at least two active cavitated lesions in deep dentin (inner half of the dentin in the evaluation of the interproximal RX and with at least 1mm of dentin separating the carious lesion of the pulp) and that met the inclusion and exclusion criteria participated in the study. For each child, teeth were randomized and submitted to one of the treatment groups: total caries removal (TCR - control group) or SCR (test group). Children could have more than 2 teeth included. In cases of pulp exposure, data were analyzed and the tooth was excluded from the sample. Four institutions participated in the study (Federal University of Rio Grande do Sul, Peruvian University Cayetano Heredia and International Universidad of Ecuador), resulting in four pediatric dentists who performed the caries removal procedures and subsequent restorations in composite resin. Clinical evaluation was performed at baseline, 6, 12, 18, 24 and 30 months. All procedures were performed under local anesthesia and rubber dam use. Sociodemographic characteristics were collected at the baseline and clinical characteristics as dmft and visible plaque and gingival bleeding index were collected in all follow-up periods. Radiographs were taken only at baseline and restorations were clinically assessed at baseline, 6, 12, 18, 24 and 33 months by a blinded, trained and calibrated operator in each institution. The characteristics of the restorations were recorded according to an adaptation of the FDI criteria. Survival estimates for restoration longevity were evaluated using the Kaplan-Meier method. We also estimated the annual failure rate of the restorations. Cox regression model with shared frailty was performed to assess differences in survival rates of the restoration according to the intervention treatment, institution and clinical and demographic characteristics of the sample. Results: one hundred and six children (51 boys and 55 girls) collaborated with 278 teeth submitted to adhesive restorations (137 after TCR and 141 after SCR). Pulp exposure occurred in eight teeth (2.8%) allocated to TCR, and in four (1.4%) allocated to SCR group. The overall success rate of restorations was 87.1% (85.4% for TCR and 88.7% for SCR) and mean survival time was 30.3 months. The annual failure rate was 7% after 24 months of follow-up. There were no differences in the risk of failure according to the treatment group (HR 0.75;95%CI:0.38-1.46) and institution (USP HR 0.44;95%CI:0.94-2.09; PERU HR 0.92;95%CI:0.26-3.19; ECUADOR HR 1.39;95%CI:0.45-4.28). Analogous observations were found regarding all the clinical and demographic variables. Conclusions: Composite restorations of active deep carious lesions performed in posterior primary teeth show satisfactory survival of 87.1% after 33 months of follow-up, regardless of the technique performed for carious tissue removal.
Nahsan, Flavia Pardo Salata, Linda Wang, Karin Silva Modena, Dos Rios Luciana Fàvaro Francisconi, Luciana Mendonça da Silva, Marcela Pagani Calabria, Leslie Casas-Apayco et Rafael Francisco Lia Mondelli. « A 12-month clinical trial examining the effects of a surface sealant on Class I composite resin restorations ». Chicago, Academy of General Dentistry, 2016. http://hdl.handle.net/10757/607232.
Texte intégralA split-mouth, double-blind trial evaluated the effects of a surface sealant on the clinical performance of Class I composite resin restorations. In 16 patients, 27 pairs of maxillary and mandibular molars or premolars with Class I carious lesions or unsatisfactory restorations were restored with composite resin. For each pair, 1 surface was sealed with surface sealant. Clinical evaluations of marginal integrity, marginal discoloration, anatomical form, and secondary caries were performed by 2 experienced operators using modified US Public Health Service criteria 1-2 weeks and 6 and 12 months after treatment. Data were analyzed with the McNemar test (P < 0.05). After 6 months, only 1 (4%) sealed restoration presented a Bravo rating for marginal integrity. After 12 months, the Bravo ratings for marginal integrity were 2 (7%) for sealed restorations and 1 (4%) for nonsealed restorations. Restorations received a score of Alfa for all other parameters at all time periods. There were no statistically significant differences within or between the sealed and nonsealed groups (P = 1.0). The use of a surface sealant did not improve the clinical performance of posterior composite resin Class I restorations.
Revisión por pares
Silal, Sandhya Prakash. « A randomised control trial for the restoration of functional ability in patients post total knee arthroplasty : Eccentric versus concentric cycling ergometry ». Master's thesis, Faculty of Health Sciences, 2018. http://hdl.handle.net/11427/30804.
Texte intégralSeymour, Sheila. « Rex v Rosewell : 1684 - An exploration of the political, religious and social context of a trial for high treason in late restoration England ». Thesis, Royal Holloway, University of London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499102.
Texte intégralBakkum, Amanda. « A randomised control trial for the restoration of functional ability in patients post total knee arthroplasty : a comparison of eccentric versus concentric cycling ergometry ». Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/16477.
Texte intégralPurpose: The predominant impairment to function following a total knee arthroplasty (TKA) is a distinctive reduction in quadriceps muscle strength. It has been suggested that eccentric rehabilitation may be more beneficial than traditional concentric only rehabilitation at improving muscle strength, physical functioning and quality of life in this population. The aim of this study was therefore to determine if an eccentric cycling ergometry rehabilitation intervention (a) was feasible in participant's early after TKA surgery (Study 1), (b) resulted in greater improvements in muscle strength and endurance, as well as muscle activity and muscle volume (Study 2) and, (c)resulted in greater knee functional ability, health related quality of life and physical activity levels (Study 3), when compared to an concentric cycling ergometry rehabilitation intervention. Finally, knee and hip kinematics, ground reaction force and muscle activity was described during the sit-to-stand transfer within this population (Study 4). Methods: Eighteen age- and sex-matched participants', three to nine month's post-TKA were recruited and randomly divided into either an eccentric or concentric cycling rehabilitation intervention. The participants were required to perform three exercise sessions a week, over a period of eight weeks. Isokinetic strength and muscle activity of the quadriceps and hamstring muscles, sit-to-stand motion capture analysis and knee functional ability and health related quality of life questionnaires (Knee Injury and Osteoarthritis Outcome Score, SF-36Health Survey and Tegner Activity Scale) were assessed pre and post- rehabilitation intervention. Data Analysis: Two-way repeated-measures analysis of variance were used to analyse the effects of time and the ECC and CON intervention groups and the group/time interaction for each of the dependent variables. Results: The eccentric rehabilitation intervention was well tolerated with regards to pain levels in participants' as early as three months post-TKA, the peak level of pain perceived per session, never exceeding a "mild" classification. The eccentric intervention resulted in greater power (P= 0.029) and work output (P ≤ 0.001) with a reduced overall heart rate (P= 0.014) ; moderate decreases in biceps femoris (BF) muscle activity (-3.2%) and increases in the lean thigh volume (+807.32) of the uninvolved limb; as well as improvements in the physical fun ctioning (+12.2%) and physical role functioning SF-36 scores (+22.2%) and the level of physical activity (+0.9) (Tegner activity scale). The concentric intervention resulted in decreases in vastus lateralis (VL) muscle activity (-8.17%) and work fatigue (-7.34%) and increases in the lean thigh volume (+677.49) and the hip abduction angle (+ 2.67°) (sit-to-stand) of the involved limb. Conclusion: The eccentric rehabilitation intervention is well tolerated with regards to pain and is characterised by significantly greater power output produced and work performed at significantly lower heart rates. Eccentric cycling ergometry matched in perceived exertion and duration, is associated with greater improvements in physical functioning outcome scores, physical activity level and knee flexion muscle efficiency during concentric contractions, when compared with concentric cycling ergometry. However, knee extensor muscle endurance and efficiency during concentric contractions, as well as muscle volume of the involved limb increased more significantly after concentric training in comparison to eccentric training, Further research is required to establish which training modality is the most feasible and effective in restoring knee function in participant's three months post-TKA.
Madden, Sloane. « Inpatient Treatment of Anorexia Nervosa : Does Inpatient Weight Restoration Prior to Outpatient Family Treatment Improve Outcomes in Adolescent Anorexia Nervosa ? A Randomised Controlled Trial ». Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13699.
Texte intégralMaloney, Margaret E. « A Trial of Fire and Ice : Assessing the Ability of Invasive Tree Pyrus Calleryana to Resist Disturbance During Grassland Invasion in The American Midwest ». University of Dayton / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1618854700620354.
Texte intégralLewis, David G. (David Gene) 1965. « Termination of the confederated tribes of the Grand Ronde community of Oregon : Politics, community, identity ». Thesis, University of Oregon, 2009. http://hdl.handle.net/1794/10067.
Texte intégralIn 1954, one hundred years after the western Oregon Indians were removed to the Grand Ronde Reservation; the antecedent peoples were subjected to the final effort by the United States to colonize the remainder of their lands through Federal termination policy. The permanent Grand Ronde Reservation, settled in 1855 and established by presidential executive order in 1857, was terminated by Congress, and the tribal people lost their Federal recognition. The seven ratified treaties that ceded to the United States millions of acres of land, most of western Oregon, which was occupied by over 60 tribal nations, were nullified. These 60 tribes were declared by Congress to be assimilated, and termination was enacted to free them from continued government management and oppression. In western Oregon, native people appeared to cease to exist, and for 29 years the Grand Ronde descendants suffered disenfranchisement and a multitude of social problems. The reservation's tribal cultures, languages, and community were severely fractured and much was lost. Terminated tribal members were rejected by other tribes as having willingly sold out to the Federal government. During the post-termination era, despite all of the problems the tribal members faced, they found ways to survive and worked to restore the tribe. In 1983, the Grand Ronde Tribe was restored. This research gathers disparate information from political, anthropological, historical, and tribal sources to analyze and understand the termination of the Grand Ronde Reservation. Revealed are the many political issues of the 1940s and 1950s that contributed to termination. Oral histories and government correspondence and reports from the era are referenced to illuminate the reality of tribal life in the post-termination era. The research connects to historic strategies of the Federal government to colonize all aboriginal lands and to assimilate Indians. Finally, this study seeks to unveil the history of the Grand Ronde Reservation and its peoples so that the tribal people may understand and recover from the effects of the termination of the tribe. The continued effects of termination are explored, discussed, and connected to issues of tribal identity and indigenous decolonization.
Adviser: Lynn Stephen
Mustafa, Duaa Ezzedin Ibrahim. « Randomised clinical trial of four dental restorative materials (silver amalgam 'Dispersalloy', compomer 'Dyract AP', resin modified glass-ionomer 'Fuji IL LC' and Vitremer') placed in children ». Thesis, University College London (University of London), 2005. http://discovery.ucl.ac.uk/1445712/.
Texte intégralBaldissera, Rudimar Antônio. « Avaliação clínica de restaurações de resina composta em dentes anteriores e posteriores ». Universidade Federal de Pelotas, 2012. http://repositorio.ufpel.edu.br/handle/ri/2220.
Texte intégralComposite restorations are daily performed in dental offices; however, few studies have reported the longevity of these restorations for long periods of observation. This study was conducted to evaluate the clinical performance of resin composite restorations placed in anterior and posterior teeth in the period between the years 1991 and 2001. From the files of a private dental clinic, 83 patients who received 375 restorations in posterior teeth and 61 patients with 237 restorations in anterior teeth with the composites Charisma (Heraeus Kulzer, Hanau, Germany), Herculite XR (Kerr, Orange, CA, USA) or Z100 (3M ESPE, St. Paul, MN, USA) participated in the study, being examined by two calibrated researchers. The restorations were evaluated according to the FDI criteria (World Dental Federation, HICKEL et al., 2007). After the fieldwork, data were double tabulated and subjected to statistical analysis using Stata version 11.0. Descriptive statistics were used to report the frequency of distribution of the restorations for the variables evaluated and for the causes of failures. The survival analyzes were performed using the Kaplan-Meier method, to obtain the survival curves for the variables of interest, followed by the Log-Rank test for comparison between groups (α=0.05). The analysis of factors associated with failure over time was performed using a model of multivariate analysis by Cox regression with shared fragility. Of the total of 612 restorations, 69 were considered unsatisfactory. The annual failure rate observed at the final of the period was 0.76 to anterior teeth and 1.16 to posterior teeth. The aesthetic factor was the major cause in the anterior teeth, while in posterior were the fractures. Regarding the material, the composite Herculite was significantly better than Z100 and this better than Charisma. Restorations with the largest number of surfaces involved had the worst performance. The result of this study showed a satisfactory clinical performance. In relation of the material, the composite Herculite was significantly better than the Z100 and this better than Charisma. The restorations with the highest number of surfaces involved had the worst performance
Restaurações de resina composta são confeccionadas diariamente nos consultórios odontológicos, porém poucos estudos reportam a longevidade destas restaurações por longos períodos de observação. Este estudo foi realizado para avaliar o desempenho clínico de restaurações de resina composta inseridas em dentes anteriores e posteriores no período de 1991 a 2001. A partir da verificação de prontuários do arquivo de uma clínica odontológica privada, 83 pacientes que receberam 375 restaurações em dentes posteriores e 61 pacientes com 237 restaurações em dentes anteriores com os compósitos Charisma (Heraeus Kulzer, Hanau, Alemanha), Herculite XR (Kerr, Orange, CA, EUA) ou Z100 (3M ESPE, St. Paul, MN, EUA) participaram do estudo e foram examinados por dois pesquisadores calibrados. As restaurações foram avaliadas de acordo com os critérios de avaliação clínica de restaurações propostos pela FDI (Federação Dentária Internacional) . Após o trabalho de campo, os dados foram tabulados por 2 digitalizadores e submetidos à análise estatística usando o Stata versão 11.0. Estatística descritiva foi usada para reportar a frequência de distribuição de restaurações para as variáveis avaliadas e para as causas de falhas. As análises de sobrevida foram realizadas pelo método de Kaplan Meier, para a obtenção das curvas de sobrevida para as variáveis de interesse, seguido do teste Log-Rank, para comparação entre grupos (α=0,05). A análise de fatores associados a falha ao longo do tempo foi realizada através de modelo de análise multivariável por regressão de Cox com fragilidade compartilhada. Do total das 612 restaurações, 69 foram consideradas insatisfatórias. A taxa de falha anual observada no final, foi de 0,76 para os dentes anteriores e de 1,16 para os posteriores. O fator estético foi a principal causa nos dentes anteriores enquanto que nos posteriores as fraturas., Em relação ao material a resina Herculite mostrou-se significantemente melhor que a Z100 e esta melhor que a Charisma. As restaurações com o maior número de faces envolvidas tiveram o pior desempenho. O resultado deste estudo mostrou que os compósitos apresentaram um bom desempenho clínico tanto em dentes posteriores quanto em anteriores, no acompanhamento a longo prazo
Castellon, Léa. « La place de la victime dans le procès pénal ». Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC0097.
Texte intégralThe place of the victim in the criminal trial is complicated and ambiguous. In current law, the victim enjoys rights and means of action in the criminal trial which guarantee her a real part. For example, as the prosecution, the victim can activate the public action and she can ask for the repair of her damage. The victim is not any more the forgotten of the criminal trial, she became a full part. However, in spite of an obvious strengthening of the part of the victim in the criminal trial, an imbalance of the rights and the means of action persists between the parts in every stage of the criminal procedure. The improvement of the procedural balance between the parts in the criminal trial has to continue not to put aside the victim
Massa, Márcia Gomes. « Avaliação de restaurações adesivas bulk fill em molares decíduos após remoção seletiva de tecido cariado : ensaio clínico controlado randomizado ». reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/179728.
Texte intégralThe purpose of this study was to evaluate the clinical performance of bulk-fill restorations in primary molars submitted to SCR (selective caries removal) at 12 months of follow-up. 62 (average age of 5.9 years ± 1.74) were included with at least one molar with active cavitated lesion in deep dentin.144 primary molars were randomly divided into 2 groups of restorative material: Filtek Bulk Fill Resin (test group = FBF) or Vitremer (control group = RMGIC). Restorative procedures were performed by 2 specialists in pediatric dentistry trained to perform the technique and calibrated to evaluate the diagnosis of lesion activity and restoration performance. A third examiner also trained, calibrated and contemplating the principle of blinding, evaluated the radiographs during the follow-up period. The criteria evaluated to determine the clinical and radiographic success of the SCR were: absence of spontaneous pain and / or sensitivity to pressure, absence of signs of irreversible pulpitis, abnormal mobility incompatible with the period of root resorption. Restoration performance was categorized in each group following the FDI criteria for marginal staining, anatomical form, fracture of material and retention, marginal adaptation and recurrence of caries, and the failure was recorded. The teeth were reassessed clinically and radiographically regarding the treatment and performance of the restoration at 6 and 12 months. Sociodemographic characteristics were recorded in the baseline and clinical characteristics such as DMFT index, visible plaque index and gingival bleeding index were recorded during the follow - up. The data were analyzed considering the type of restoration, symptoms, number of faces involved, tooth type, operator experience and success rate of the restorations. To determine the success rates of the restorations, survival curves were generated with the Kaplan-Meyer estimator for each group evaluated. The Cox regression model with shared failures was performed to assess differences in survival rates of restorations according to treatment and clinical and demographic characteristics of the sample. Results: Success rate of restorations was 83.9% (85.9% for FBF and 81.9% for RMGIC, p=0.675). There were no differences in the risk of failure according to the material restoration. Of the 23 failures, three failures were exclusive pulp and one pulp and restorative, and 100% of the failure were to due to fracture of material. Occlusoproximal restorations demonstrated the lowest success rate, increases 4.12 times the probability of having a restorative failure compared to occlusal restoration. Patients with "active caries" profile were associated with more failures than "controlled caries" patients. The degree of operator experience showed significant difference, and the less experienced operator had more restorative failures. Bulk Fill composite restorations performed in molar primary teeth after selective caries removal showed satisfactory survival of 85.9% after 12 months of follow-up.
Costa, Thays Regina Ferreira da. « AVALIAÇÃO CLÍNICA E LABORATORIAL DE RESTAURAÇÕES COM RESINA BULK FILL INSERIDAS DE FORMA INCREMENTAL OU EM INCREMENTO ÚNICO ». UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2016. http://tede2.uepg.br/jspui/handle/prefix/1706.
Texte intégralCoordenação de Aperfeiçoamento de Pessoal de Nível Superior
Objectives: In the experiment 1, an in vitro study, the aim was to evaluate the microtensile bond strength (μTBS), nanoleakage (NL) and degree of conversion (DC) of different bulk-fill resin-based materials placed in bulk [BUL] or incrementally [INC] and in the experiment 2, a double blind randomized clinical trial, split mouth for each adhesive system, was conducted to compare the postoperative sensitivity of a bulk-fill resin-based material placed in BUL or INC in posterior composite resin restorations bonded with two different adhesive strategies (self-etch and etch-and-rinse). In the experiment 3, the objective was to describe the clinical steps involved in the placement of posterior composite resin restorations with bulk-fill resins. Materials and methods: In experiment 1, flat dentin surfaces of thirty extracted teeth were exposed and then were randomly assigned into 6 experimental conditions (n = 5). Composite buildups were constructed according to the combination of the main factors filling technique (BUL [single 4-mm thick layer] and INC [two 2-mm thick layers]) and composite resin (Filtek Bulk Fill Flow [FIL], 3M ESPE, Tetric N-Ceram Bulk Fill [TET], Ivoclar Vivadent and SureFil SDR Flow [SDR], Dentsply Caulk) with their respective conventional adhesive systems. Teeth were sectioned to obtain bonded sticks (0.8 mm2) to be tested in tension (0.5 mm/min) for μTBS. For NL, two bonded sticks from each tooth were placed in 50% silver nitrate and polished with SiC paper and then analyzed using scanning electron microscopy. For DC, three specimens per tooth were analyzed in micro-Raman spectroscopy. The mean μTBS (MPa) NL (%) and DC (%) data were submitted to a two-way ANOVA and Tukey´s test (α = 0.05). In experiment 2, a total of 236 posterior dental cavities with a cavity depth of at least 3 mm (72 participants) were randomly divided in four groups (n=59). Restorations were bonded either with the etch-and-rinse Tetric N-Bond (Ivoclar Vivadent) or with the self-etch Tetric N-Bond SE (Ivoclar Vivadent). The composite resin TET (Ivoclar-Vivadent) was placed either INC or in BUL techniques. Two experienced and calibrated examiners performed the evaluation of the restorations using the FDI criteria after one week of clinical service. Spontaneous postoperative sensitivity was assessed using a 0-4 and a 0-100 numerical rating scale (NRS), and a 0-10 visual analog scale (VAS) up to 48 h after the restorative procedure and one-week later. Results: In experiment 1, higher μTBS values (mean ± SD) were observed for FIL (57.5 ± 3.5) in the BUL technique when compared to other groups inserted in BUL (TET 52.6 ± 7.8; SDR 54.9 ± 4.3) or INC filling (FIL 51.8 ± 4.1; TET 47.9 ± 4.5; SDR 49.7 ± 3.8) - p > 0.05. No statistically significant difference was observed among the materials tested (p > 0.05). No significant difference was 9 detected in NL (FIL [7.6 ± 1.9 INC and 10.3 ± 2.3 BUL]; TET [10.9 ± 3.3 INC and 12.8 ± 4.0 BUL]) and DC (FIL [87.9 ± 7.0 INC and 85.6 ± 8.4 BUL]; TET [92.2 ± 3.4 INC and 83.3 ± 5.4 BUL]) between filling technique (p > 0.05). Higher NL values (13.0 ± 3.6 INC and 14.8 ± 2.5 BUL [p = 0.001]) and lower DC (49.7 ± 8.3 INC and 48.6 ± 4.0 BUL [p = 0.003]) were found when SDR was used. In experiment 2, neither the restorative technique nor the adhesive strategy affected the risk (p > 0.49) and intensity of spontaneous postoperative sensitivity (p > 0.38). The overall risk of postoperative sensitivity observed was 20.3% (95% CI 15.7 to 25.9) and occurred practically within the 48 h after the restorative procedure. Conclusions: The filling technique did not affect the μTBS, NL and DC of the bulk fill materials tested in this study. Clinically, the use of single increment of this new bulk-fill material, even in deep restorations, did not generate more postoperative sensitivity when compared to the incremental filling technique.
Objetivos: No experimento 1, um estudo in vitro, o objetivo foi avaliar a resistência de união (RU), nanoinfiltração (NI) e grau de conversão (GC) de diferentes resinas compostas bulk fill inseridas de forma incremental (INC) ou em incremento único (UNI) e no experimento 2, um ensaio clínico randomizado duplo-cego de boca dividida para cada sistema adesivo, foi comparar a sensibilidade pós-operatória em restaurações realizadas com resina bulk fill em dentes posteriores variando a técnica de inserção (UNI e INC) e a estratégia adesiva (convencional e autocondicionante). No experimento 3, o objetivo foi realizar um relato de caso clínico demonstrando os passos clínicos envolvidos na execução de restaurações posteriores com uma resina bulk fill. Material e métodos: No experimento 1, trinta terceiros molares tiveram sua dentina planificada e exposta, foram divididos aleatoriamente em seis condições experimentais (n=5) e restaurados de acordo com a combinação dos fatores: técnica de inserção (UNI [uma camada de 4 mm] ou INC [2 camadas de 2 mm cada]) e resina composta (Filtek Bulk Fill Flow [FIL], 3M ESPE, Tetric N-Ceram Bulk Fill [TET], Ivoclar Vivadent e SureFil SDR [SDR], Dentsply Caulk) com seus respectivos sistemas adesivos convencionais. Os dentes foram seccionados para obtenção de palitos (0,8 mm2) para serem testados em microtração (0,5 mm/min) para RU. Para NI, dois palitos de cada dente foram infiltrados com nitrato de prata amoniacal 50%, revelados, polidos com lixas de carbeto de silício com granulação crescente e avaliados em microscopia eletrônica de varredura. Para GC, três palitos por dente foram levados ao micro-Raman para análise do grau de conversão. As médias de RU (MPa), NI (%) e GC (%) foram submetidos a uma análise de variância de dois fatores e Teste de Tukey (α = 0,05). No experimento 2, setenta e dois participantes tiveram 236 cavidades com profundidade mínima de 3 mm randomicamente divididas em 4 grupos experimentais (n=59). Os sistemas adesivos utilizados foram o convencional Tetric N-Bond (Ivoclar Vivadent) ou o autocondicionante Tetric N-Bond SE (Ivoclar Vivavent). A resina composta utilizada foi TET (Ivoclar Vivadent), que foi inserida de forma INC ou UNI. Dois avaliadores experientes e calibrados avaliaram as restaurações utilizando os critérios da FDI uma semana após a inserção das restaurações. A sensibilidade pós-operatória imediata foi mensurada utilizando duas escalas numéricas, de 0-4 e de 0-100 e uma escala VAS de 0-10 até 48 horas após o procedimento restaurador e uma semana após. Resultados: No experimento 1, maiores valores de RU (média ± DP) foram observados para a FIL inserida na técnica UNI (57,5 ± 3,5) em comparação com os outros grupos: UNI (TET 52,6 ± 7,8; SDR 54,9 ± 4,3) ou INC (FIL 51,8 ± 4,1; TET 47,9 ± 4,5; SDR 49,7 ± 3,8) - p > 0,05. Não foi observada diferença estatisticamente 7 significante entre os materiais (p > 0,05). Para NI (%) (FIL [7,6 ± 1,9 INC e 10,3 ± 2,3 UNI]; TET [10,9 ± 3,3 INC e 12,8 ± 4,0 UNI]) e GC (%) (FIL [87,9 ± 7,0 INC e 85,6 ± 8,4 UNI]; TET [92,2 ± 3,4 INC e 83,3 ± 5,4 UNI]), não foram observadas diferenças entre as técnicas de inserção do material (p > 0,05). Maiores valores de NI (13,0 ± 3,6 INC e 14,8 ± 2,5 UNI [p = 0,001]) e menores valores de GC (49,7 ± 8,3 INC e 48,6 ± 4,0 UNI [p = 0,003]) foram encontrados para resina SDR. No experimento 2, nem a técnica de inserção e nem a estratégia adesiva alterou o risco de sensibilidade pós-operatória (p > 0,49) e a intensidade da sensibilidade (p > 0,38). O risco geral de sensibilidade pós-operatória observado foi de 20,3% (IC 95% 15,7 - 25,9) e ocorreu praticamente dentro das 48 horas após o procedimento restaurador. A técnica operatória mostrou-se simples e mais rápida de execução que a realizada de acordo com o protocolo de inserção incremental. Conclusões: A técnica de inserção não afeta a RU, NI e GC dos materiais utilizados no presente estudo. Clinicamente, o uso de resinas bulk fill inseridas em incremento único, mesmo em cavidades profundas, não aumenta a sensibilidade pós-operatória quando comparado com a inserção incremental, independentemente da estratégia adesiva utilizada.
Silva, Rafael Menezes. « Avaliação clínica randomizada de restaurações de classe II em dentes permanentes de ART e de resina composta ». Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/25/25148/tde-24052018-180804/.
Texte intégralThis study evaluated the effectiveness of Class II restorations through the Atraumatic Restorative Treatment (ART) technique, with additional retentions in the proximal boxes, in permanent teeth, using high viscosity glass ionomer cement (HVGIC), as compared to restorations of composite resin. An epidemiological examination was conducted in a larger and representative population of the participants of study. One hundred and thirty three participants, aged 8 to 28 years, with good general health with 1 to 2 class II cavities in permanent teeth without pulp involvement and tooth pain were included in this study, with was approved by the Ethics Committee under the number: CAAE: 24012913.0.1001.5417. Seventy-seven restorations were made with each restorative material (Equia Fil-GC Corporation and Z350-3M). Restorations were evaluated at 6, 12, and 24 months by the criteria of ART and the modified United States Public Health Service (USPHS). Spearman Correlation and Multiple Linear Regression were performed between the variables tooth pain, visible plaque index (VPI), gingival bleeding index (GBI) and the CAST (The Caries Assessment Sprectrum and Treatment) and DMFT (Decayed, Missing and Filled teeth) obtained at the epidemiological survey using the Statistica program 7.1. As for restorative effectiveness, data were analyzed using the Mann-Whitnney, Chi-square, Fisher\'s Exact, Chi-square tests with linear trend and Logistic Regression by Enter method, where relevant (p<0.050). The Kaplan-Meier test evaluated the survival rates of the restorations in relation to the ART and modified USPHS criteria. The Log-Rank test compared the survival curves. From the CAST index (1.53; 2.17) it was possible to extract the DMFT (0.58; 1.32) which presented lower specificity and sensitivity in caries detection. The success rates for composite resin restorations were 100% (6 months), 98.7% (12 months) and 91.5% (24 months) for both assessment criteria and for ART restorations were the same for 6 months (98.7%) and 12 months (95.8%) and for 24 months were 92% when using the criteria of modified USPHS and 90.3% when using the criteria of ART, and no statistical difference was observed (p=0.466). The variables gender, locality, age, DMFT, VPI, GBI, toothache, occlusion, proximal contact, cavity size, anesthesia and cooperation of the participant did not present a statistical association with the success rates of the restorations (p>0.050). After 24 months, the VPI and GBI variables did not present a statistically significant odds ratio (OR) for ART restorations (p>0.050). ART restorations presented a lower survival rate by the criteria of ART (83.7%) when compared to the criteria of USPHS modified (87.8%), after 24 months (p=0.051). The survival of composite resin restorations was 90.7% for both evaluation criteria. It was concluded that there is no difference in the success rate of class II restorations of ART with HVGIC, in permanent teeth, with proximal retention grooves, compared to class II resin composite restorations, after 24 months.
Mullett, Margaret. « Conducting a randomised experiment in eight English prisons : a participant observation study of testing the Sycamore Tree Programme ». Thesis, University of Cambridge, 2016. https://www.repository.cam.ac.uk/handle/1810/275047.
Texte intégralCoscas-Williams, Béatrice. « La victime d'agression sexuelle face à la procédure pénale israélienne ». Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCB181/document.
Texte intégralOn the 21st of March 2001, the "Rights of Victims of Crime Law", which acknowledges the existence of victims in the criminal procedure, was passed. This law, which is the fruit of the intervention of the feminist and the human rights movement, finally recognizes the necessity of granting rights to victim of crime in general, and the victim of sexual offences in particular. The "Rights of Victims of Crime Law" included a series of rights for victims during the different stages of the criminal proceedings such as free access to information, the protection of their privacy and the right to be protected inside and outside of the court from intimidation by offenders and their families. Likewise, victims of sexual offences may receive information, and express their opinions, under specific conditions at different stages during the trial and in cases where a plea bargain is struck between the offender and the prosecutor. Despite this new law, the victim's participation in the process remains symbolic. The victim remains on the sidelines of the Israeli criminal justice system, with no active role at any stage of the criminal process. The only real players are the public prosecutor, the accused and his or her lawyers. It seems at first glance that the fact that the victim does not participate in the criminal process is based on the characteristics of the Israeli criminal system as an adversarial system. As an adversarial system of law, the Israeli criminal system consists of two parties only, which are equal: the prosecution and the accused seeking to resolve a dispute before a passive judge, interested in discovering the procedural truth. In this system, there are two parties, the defense and the prosecution, the victims only representation being as a witness. However, we have seen that during the last thirty years, in countries utilizing a similar legal system, a clear evolution in victims' rights based on the Due Process of Law and a fair trial for the accused and for the victims of sexual abuse. In some of these countries, victims have profited from an effective role during the proceedings. The journey of the victims of sexual offences in the criminal court, from the filling of a complaint with the police, to the meeting with the prosecutor and judges, until the sentence, is not easy, considering that he or she is not represented by a lawyer. Moreover, the domain of sexual offences is laden with stereotypes that the victims have to deal with. If "The Rights of Victims of Crime Law", try to ease the process for victims, the victims' participation is weak and depends on the will of the prosecutor. Moreover, the opinion of the victim does not have any bounding value. In fact, this law does not provide standing or remedies for victims rights violation. The traditional Israeli criminal system does not satisfy the need for victims of sexual assault to express human feelings during the stages of the criminal process, and may lead in certain case to secondary victimisation. Therefore, it is interesting to consider if the Israeli criminal prooceedings could be influenced by other systems of law which have succeeded in granting effective rights to victims, and whether the social and juridical evolution of Israeli society might offer progressively a forum to victims, notably with the utilization of restorative justice
Gauli, A. « Genetic diversity and adaptation in Eucalyptus pauciflora ». Thesis, 2014. https://eprints.utas.edu.au/18606/2/Whole-Gauli-thesis-inc-pub-mat.pdf.
Texte intégralStrang, Heather. « Victim participation in a restorative justice process : the Canberra Reintegrative Shaming Experiments ». Phd thesis, 2000. http://hdl.handle.net/1885/7549.
Texte intégralHorák, Petr. « Alternativy nepodmíněného trestu odnětí svobody ». Master's thesis, 2013. http://www.nusl.cz/ntk/nusl-325540.
Texte intégralGomera, Gamuchirai Luciano. « Juvenile offenders and pre-trial diversion officers' experiences and challenges of the pre-trial diversion programme : a case study of Chitungwiza, Zimbabwe ». Diss., 2021. http://hdl.handle.net/10500/27803.
Texte intégralSocial Work
M.A. (Social Work)
Krupska-Świstak, Małgorzata. « Konflikt wartości w stosowaniu trybów konsensualnych w Polsce : analiza empiryczna ». Praca doktorska, 2021. https://ruj.uj.edu.pl/xmlui/handle/item/291037.
Texte intégralVinagre, Alexandra Rosa Rodrigues. « Avaliação clínica e laboratorial de diferentes sistemas adesivos em dentistaria restauradora ». Doctoral thesis, 2014. http://hdl.handle.net/10316/25456.
Texte intégralIntrodução A execução de restaurações adesivas diretas com resinas compostas assume-se como o procedimento de eleição no tratamento de dentes posteriores. Contudo, a limitada durabilidade clínica destas restaurações deve-se, essencialmente, à perda progressiva da integridade das respetivas interfaces adesivas. De facto, nenhuma estratégia adesiva é isenta de sensibilidade técnica e a especificidade das diferentes moléculas, a sua proporção relativa e o modo como interagem entre si e com os substratos diferem grandemente entre as diferentes classes de sistemas adesivos, com repercussões sobre a qualidade da adesão proporcionada por cada uma. A simplificação dos procedimentos adesivos parece ser uma realidade incontornável, tendo catapultado os sistemas autocondicionantes para um patamar de relevo na área da dentistaria adesiva. Contudo a carência de estudos clínicos randomizados que comprovem a sua eficácia é notória, particularmente na avaliação do seu desempenho na restauração de dentes posteriores. Este trabalho teve duas vertentes de investigação: a primeira com base na execução de um estudo clínico randomizado cujo objetivo foi avaliar a eficácia a um ano de cinco sistemas adesivos em restaurações de cavidades oclusais realizadas com uma resina composta e a segunda com base num ensaio laboratorial que visou comparar as forças de adesão ao esmalte humano preparado com broca de dois sistemas adesivos do tipo condicionar e lavar e de três sistemas adesivos autocondicionantes aplicados de forma ativa ou passiva, bem como avaliar a micromorfologia superficial e a ultramorfologia das interfaces adesivas por eles produzidas. Materiais e métodos Foi efetuado um estudo clínico randomizado após aprovação da comissão de ética do CHUC e da FMUC, seguindo os parâmetros definidos pelo CONSORT. Foram efetuadas 159 restaurações em cavidades oclusais de dentes posteriores em 54 pacientes utilizando cinco sistemas adesivos diferentes em função do grupo (OptiBondTM FL (G1-OBFL) , Kerr; Prime & Bond® NTTM (G2- PBNT), Dentsply DeTrey; ClearfilTM SE Bond (G3-CSEB), Kuraray; Xeno® III (G4-XIII), Dentsply DeTrey e Xeno® V+ (G5-XV+), Dentsply DeTrey) e uma resina composta (Esthet•X® HD A2; Dentsply DeTrey) seguindo um técnica de estratificação anatómica por incrementos. As restaurações foram avaliadas segundo os critérios de avaliação internacionais aprovados pela FDI num período inicial entre 3 e 7 dias após a execução do tratamento restaurador (0M); após 6 (6M) e 12 meses (12M) de acordo com diversos parâmetros enquadrados nas propriedades estéticas, funcionais e biológicas. Posteriormente foi ainda efetuada uma avaliação das restaurações com base em macrofotografias digitais. Para a análise estatística executou-se o teste de Friedman para amostras emparelhadas, seguido de comparação par-a-par com o teste de Wilcoxon. Comparações inter-grupos foram efetuadas com recurso ao teste de Kruskal-Wallis e Mann-Whitney para a avaliação post hoc. Os índices de concordância entre os métodos de avaliação clínica direta e registo macrofotográfico, foram determinados pela análise do Coeficiente de Correlação Intraclasse. O parâmetro adaptação marginal foi selecionado como o desfecho primário deste estudo e foi considerado na análise da potência e na determinação do risco relativo entre os grupos. O nível de significância estatística estabeleceu-se em α=0.05 para todas as análises. Para o estudo laboratorial foram preparadas 96 faces vestibulares e linguais/palatinas de terceiros molares humanos com uma broca diamantada de grão médio de modo a expor uma superfície de esmalte. Estas foram distribuídas aleatoriamente em oito grupos englobando os mesmos sistemas adesivos utilizados no estudo clinico, dos quais os sistemas autocondicionantes foram aplicados segundo dois modos: ativo (AT) ou passivo (PS) (G1: OptiBondTM FL; G2: Prime & Bond® NTTM, G3: ClearfilTM SE Bond/PS; G4: ClearfilTM SE Bond/AT; G5: Xeno® III/PS; G6: Xeno® III/AT; G7: Xeno® V+/PS; G8: Xeno® V+/AT). Após a sua polimerização foram construídos blocos de resina composta de uma forma incremental que, após armazenamento em água destilada durante 24h a 37ºC foram seccionados com uma serra de precisão diamantada e refrigerada por forma a obter bastonetes (1mm2), posteriormente submetidos ao ensaio de microtração (μTBS) a uma velocidade de 0.5 mm/min. As superfícies foram examinadas sob microscopia óptica por forma a determinar os padrões de fratura. A micromorfologia superficial produzida pela ação acídica e as interfaces adesivas correspondentes de cada grupo foram observadas em microscopia confocal e microscopia eletrónica de varrimento. Para os dados coletados dos ensaios de microtração foi realizada a comparação entre grupos através de One-Way ANOVA, considerando a correção de Games-Howel para as análises post-hoc (α=0.05). A distribuição probabilística de Weibull foi considerada para a avaliação do risco de fratura. Resultados No estudo clínico foram avaliadas ao final de um ano 153 restaurações em 51 pacientes. De entre as propriedades estéticas apenas o parâmetro pigmentação marginal e superficial registou alterações significativas dos 0M aos 12M para todos os grupos exceto para o PBNT. A mesma avaliação nas propriedades biológicas não registou alterações significativas em qualquer dos grupos. Relativamente às propriedades funcionais verificou-se dos 0M aos 12M uma diminuição estatisticamente significativa do número de restaurações classificadas com grau de adaptação marginal excelente (score 1) apenas para os sistemas autocondicionantes (p<0.01). Aos 12M registaram-se níveis de score 1 na avaliação parâmetro adaptação marginal em 96.7%, 90.3%, 45.2%, 50% e 16.7% dos casos para os G1, G2, G3, G4 e G5, respetivamente, ficando as restantes restaurações classificadas entre os scores 2 e 3, com maior prevalência para o primeiro. Aos 12M verificaram-se diferenças estatisticamente significativas na adaptação marginal dos grupos. Ambos os G1 e G2 apresentaram resultados estatisticamente superiores a qualquer um dos outros grupos enquadrados nos sistemas autocondicionantes (p<0.01). Destes últimos, os G3 e G4 revelaram um comportamento muito semelhante e superior ao G5. O XV+ foi o sistema adesivo que registou scores mais elevados ao nível da adaptação marginal, o que condicionou as diferenças estatisticamente significativas com todos os grupos no final do primeiro ano de avaliação clínica. A comparação dos resultados do método de avaliação fotográfico com a avaliação clínica direta determinou concordância máxima aos 0M. Contudo, aos 6M e 12M houve um decréscimo natural dos índices de concordância associado à fratura da restauração e adaptação marginal. Apesar de não terem sido considerados quaisquer insucessos clínicos globais pelo facto de a frequência de scores 4 e 5 ter sido nula, o risco relativo de ocorrência de desadaptação marginal em restaurações efetuadas com os sistemas autocondicionantes estudados demonstrou ser 2.5 vezes superior em relação aos sistemas do tipo condicionar e lavar. No estudo laboratorial, a análise dos resultados decorrentes dos ensaios de microtração demonstraram não existir diferenças estatisticamente significativas nas forças de adesão entre os G1 (26.86 ± 7.71 MPa), G2 (27.10 ± 7.17 MPa), G4 (25.14 ± 7.11 MPa) e G5 (22.65 ± 8.58 MPa). Para a avaliação dos sistemas adesivos autocondicionantes em função do modo de aplicação verificou-se que, apenas para o sistema adesivo CSEB, a aplicação ativa produziu valores significativamente superiores (G4: 25.14 ± 7.11 MPa) comparativamente ao modo de aplicação passivo (G3: 15.63±6.51)(p<0.01). Para os G5 e G6 não foram detetadas diferenças nos valores de adesão obtidos. O XV+ originou valores de adesão próximos de 0 MPa, independentemente do seu modo de utilização e revelou um comportamento negativo muito significativo quando comparado com qualquer outro grupo no que concerne à resistência adesiva (p<0.01). No que concerne à distribuição dos padrões de fratura, para os sistemas adesivos do tipo condicionar e lavar (G1 e G2) foi encontrado um comportamento similar detetando-se uma distribuição dispersa entre falhas mistas, adesivas, coesivas no esmalte. Para o XIII e CSEB foram maioritariamente detetadas falhas adesivas ou mistas, independentemente do modo de aplicação empregue. O XV+ foi o único a condicionar falhas pré-teste (FPT; 14/G7 e 22/G8) e padrões de fratura exclusivamente adesivos. A avaliação qualitativa da micromorfologia superficial e das interfaces adesivas por MEV e MC demonstrou existir um diferencial importante no padrão de interação com o esmalte produzido pelos diferentes grupos. Conclusões Independentemente dos sistemas adesivos estudados, não se registaram insucessos ao final de um ano avaliação clínica das restaurações efetuadas. Todas as restaurações foram consideradas no mínimo satisfatórias sendo que o parâmetro adaptação marginal demonstrou ser o mais relevante na diferenciação do comportamento dos diferentes sistemas adesivos estudados. Ao final de um ano de avaliação clínica, o OBFL e o PBNT não apresentaram diferenças entre si, mas demonstraram um desempenho superior em relação a todos os sistemas adesivos autocondicionantes (CSEB, XIII e XV+). De entre estes últimos, o CSEB e o XIII demonstraram um comportamento similar mas superior ao XV+ que apresentou o pior comportamento de entre todos os grupos acompanhado por um maior índice de desadaptação marginal. O registo documental e a avaliação das restaurações através de macrofotografias digitais uniformizadas revelou ser um método válido e útil na avaliação das restaurações. O sistema adesivo e/ou o respetivo modo de aplicação exerceram um efeito significativo nas forças de adesão ao esmalte preparado com broca. Os sistemas adesivos do tipo condicionar e lavar OBFL e PBNT conjuntamente com os sistemas autocondicionantes CSEB aplicado de forma ativa e o XIII aplicado de forma passiva registaram os valores de adesão mais elevados e estatisticamente semelhantes entre si. O sistema adesivo XV+ demonstrou forças de adesão significativamente inferiores a todos os outros materiais, independentemente do modo de aplicação. Relativamente ao modo de aplicação, apenas o CSEB demonstrou uma influência significativa e positiva nos resultados das forças de adesão quando foi aplicado de forma ativa.
Introduction The implementation of direct adhesive restorations with composite resins has become the procedure of choice for the treatment of posterior teeth. Nevertheless, the long-term durability of direct adhesive restorations is hampered mainly due to progressive loss of the integrity of the adhesive interfaces. In fact, no adhesive strategy is free from technique sensitivity. The specificities and proportions of the different constitutive molecules and the possibilities of interaction between them and with substrates can differ greatly from one class of adhesive systems to another, affecting the bond quality provided. Protocol simplification has been an inevitable trend that catapulted the self-etching systems to an important position in the field of adhesive dentistry. However, it is most evident the lack of randomized clinical trials proving the effectiveness of self-etching systems, particularly in the restoration of posterior teeth. This work embraces two lines of research: the first research line aims at the determination of the efficiency after one year of function of five adhesive systems used in the restoration of occlusal cavities and is based on a randomized clinical trial; the second research line focuses on the laboratorial comparison of bond strengths of the same adhesive systems to bur prepared human enamel. In both cases, the five adhesive systems comprise two etch and rinse systems and three self-etching systems. The laboratorial research considered the active and passive application of the self-etching systems. Superficial micromorphology and adhesive interfacial ultramorphology were also evaluated in this study. Materials and Methods After the aproval by the CHUC and FMUC ethical commitees, a randomized clinical trial on the performance of self-etching and etch-and-rinse adhesive systems on occlusal posterior cavities was carried out according to the CONSORT statement. The bonding protocol considered one of 5 different adhesive systems (OptiBondTM FL (G1-OBFL) , Kerr; Prime & Bond® NTTM (G2- PBNT), Dentsply DeTrey; ClearfilTM SE Bond (G3-CSEB), Kuraray; Xeno® III (G4-XIII), Dentsply DeTrey e Xeno® V+ (G5-XV+), Dentsply DeTrey) and was randomly allocated. All cavities were incrementally filled with composite resin (Esthet•X® HD A2; Dentsply DeTrey). The restorations were scored based on the esthetic, functional and biological properties using the FDI approved evaluation scores in chronological periods after the restorative treatment of 3 to 7 days (0M); 6 months (6M) and 12 months (12M). Later, a new evaluation of the restorations was conducted based on digital macrophotographs. Statistical analysis was performed with Friedman-test for paired samples followed by pairwise comparison with the Wilcoxon-test. Inter-group analysis was performed with Kruskal-Wallis test followed by pairwise comparison with Mann-Whitney test. Intraclass correlation coeficient determined the level of agreement between direct clinical evaluation and photographic registration methods. Marginal adaptation was chosen as the primary outcome in this study thus considered the selected criteria for the clinical performance analysis and for the determination of the relative risk. Significance level was set to α=0.05 for all analyses. For the in vitro study, 96 buccal and lingual/palatal surfaces of third human molars were prepared with a diamond bur of medium grit in order to expose enamel surfaces. The surfaces were randomly allocated to an adhesive system and application method, with self-etching adhesives either applied actively (AT) or passively (PS), making a total of 8 groups (G1: OptiBondTM FL; G2: Prime & Bond® NTTM, G3: ClearfilTM SE Bond/PS; G4: ClearfilTM SE Bond/AT; G5: Xeno® III/PS; G6: Xeno® III/AT; G7: Xeno® V+/PS; G8: Xeno® V+/AT). After polymerization, blocks of composite resin were build up using an incremental stratification technique. The blocks were then stored in distilled water for 24h at 37ºC. Afterwards the blocks were sectioned using an automatic precision water-cooled diamond saw to obtain uniform sticks (1mm2) that were then submitted to microtensile test (μTBS) at 0.5 mm/min speed. The surfaces were examined with optical microscopy to determine the fracture patterns. Both the superficial micromorphology induced by the acid conditioning and the corresponding adhesive interfaces of each group were observed with confocal and scanning electron microscopy. One-Way ANOVA was used to compare the colected data of the microtensile tests, considering Games-Howel correction for post hoc tests (α=0.05). Weibull probabilistic distribution was considered for the determination of the fracture risk. Results For the clinical trial, 51 patients met the inclusion criteria, received a total of 153 restorations and were examined throughout a one-year period. Among the esthetic properties, only the marginal and superficial pigmentation showed statistical significant alterations from 0M to 12M in all groups, except for PBNT. Regarding the biological evaluation, no significant alterations could be found for any group. However, for the functional properties between the periods of 0M and 12M, a statistically significant decrease in the number of restorations with marginal adaptation classified as excellent (score 1) occurred for the self-etch adhesives (p<0.01). After one year of function, G1, G2, G3, G4 e G5 presented 96.7%, 90.3%, 45.2%, 50% and 16.7% cases with score 1 in the evaluation of the marginal adaptation, respectively. The remaining restorations were classified with scores 2 and 3, being score 2 the most common. At 12M, statistically significant differences were detected among groups. Both, G1 and G2 presented statistically better results than any other of the self-etch systems (p<0.01). G3 and G4 had similar performance and were superior to G5. XV+ obtained the highest scores in marginal adaptation, which led to statistical significant differences between this group and all the other groups after one year of function. Comparing the results of the photographic and the direct clinical evaluation methods, maximum agreement was determined for 0M. However, at 6M and 12M, restoration fracture and marginal adaptation presented a natural decrease in the levels of agreement. Despite the fact that no global clinical failure were registered due to the absence of scores 4 or 5, the relative risk of marginal desadaptation in restorations performed with self-etching adhesive systems proved to be 2.5 times higher when compared to the etch-and-rinse systems. In the in vitro study, the microtensile results showed no statistically significant differences in bond strengths of the groups G1 (26.86 ± 7.71 MPa), G2 (27.10 ± 7.17 MPa), G4 (25.14 ± 7.11 MPa) and G5 (22.65 ± 8.58 MPa). Comparing the active and passive applications of the self-etching adhesive systems, only CSEB produced significantly higher values when applied actively (G4: 25.14 ± 7.11 MPa) versus the passive application (G3:15.63±6.51) (p<0.01). No significant differences could be found between G5 e G6. XV+ obtained bond strength values close to 0 MPa, regardless of the application mode and revealed a significantly inferior bonding resistance when compared to any other group (p<0.01). Concerning the fracture patterns, the etch-and-rinse adhesive systems (G1 and G2) presented a similar distribution, including adhesive, cohesive or mixed failures in enamel. Irrespective of the application mode, XIII and CSEB presented mainly adhesive or mixed failures. XV+ was the only system to show pre-test failures (FPT; 14/G7 and 22/G8) and exclusively adhesive fracture patterns. Qualitative evaluation of the micromorphology of representative specimens by SEM and CM revealed substantial differences between the groups in the adhesive interfaces and enamel conditioning patterns. Conclusions Clinically, regardless of the adhesive system used, no global clinical failures were registered at the one-year evaluation of the restorations. All cases were considered no less than satisfactory. Marginal adaptation was the most influent parameter on the distinctive performance of the different adhesive systems. After one year of clinical evaluation, OBFL and PBNT revealed no significant differences and had superior performance compared to any of the self-etch adhesive systems (CSEB, XIII e XV+). Within the last, CSEB and XIII showed similar behaviours, higher than XV+, which exhibited the worst performance among all groups, accompanied by higher degrees of marginal deterioration. Standardized digital microphotography revealed to be a valid and useful evaluation method. In vitro, both the adhesive system and the application method triggered a significant effect on the bond strengths to bur-prepared enamel. Etch-and-rinse adhesive systems OBFL and PBNT together with CSEB used actively and XIII used passively recorded the highest bond strength results, statistically similar. XV+ showed significantly lower bond strengths compared to all other materials, regardless of the application mode. In respect to application mode, active application demonstrated a significant and positive influence on CSEB bond strength results.
Rudolf, Katrin. « Policies and Management Practices for Sustainable Oil Palm - Evidence from Indonesia ». Doctoral thesis, 2020. http://hdl.handle.net/21.11130/00-1735-0000-0005-1425-B.
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