Immediate Implant With Provisionalization and Soft Tissue Grafting After 4-Year Follow-Up.

INTRODUCTION: This paper presents a case report of immediate implant placement (IIP) with a provisionalization technique to restore function and esthetics with follow-up after 4 years. CASE PRESENTATION: Minimally traumatic extraction was performed with IIP, soft-tissue grafting, and immediate provisional crown. Six months after optimal healing, the patient was submitted to an esthetic restorative work through veneers in lithium disilicate. Fourteen-month and 4-year follow-up visits revealed stability of the peri-implant soft-tissues with peri-implant health status, with the evaluation of the pink and white esthetic score, yielding to mean scores, respectively, in 14 months of 11.62 ± 2.07 (pink esthetic score [PES]) and 18.25 ± 1.46 (PES/white esthetic score [WES]) and in 4 years of 11.0 ± 1.32 (PES) and 17.62 ± 0.65 (PES/WES). Intraoral digital radiographs showed minimal crestal bone level changes throughout the follow-up period. Thus, IIP is a sensitive technique procedure, and a 3D implant position is crucial for success. CONCLUSION: Immediate implant with grafting to fill the gap and soft tissue augmentation led to less horizontal changes and stable mucosal margin, and immediate provisionalization helped to maintain soft tissue architecture, and proper case selection is key for clinical success.

Comparação do número máximo de repetições em séries múltiplas entre indivíduos com diferentes tempos de experiência no treinamento de força / Comparison of the maximum number of repetitions in multiple series between individuals with different times of experience in resistance training

O treinamento de força (TF) proporciona adaptações centrais e morfológicas que influenciam no processo de produção de força. Em função destas adaptações é esperado que ocorram diferenças no desempenho de força entre homens com diferentes tempos de experiência no TF quanto testados em séries múltiplas. Assim, este estudo teve como objetivo comparar o número máximo de repetições (NMR) realizadas em 3 séries entre indivíduos com diferentes tempos de experiência no TF. Para isso, vinte e dois homens foram divididos em dois grupos de acordo com o tempo de experiência no TF. O Grupo Muito Experiente (GME) foi representado por homens com mais de 5 anos no TF. O Grupo Pouco Experiente (GPE) foi composto por homens com 1 a 6 meses de experiência no TF. Os grupos foram submetidos à realização do maior número de repetições em três séries a 80% de 1RM no exercício supino reto. Além disso, a duração média da repetição (DMR) foi registrada e comparada em cada série intra e inter grupos. Para as comparações foram utilizadas duas ANOVAs com única variável (NMR ou DMR) e dois fatores (fator 1 = experiência, fator 2 = série). Na análise do NMR foi detectada uma interação entre os fatores, sendo que o número máximo de repetições realizado pelo GME foi maior do que o GPE apenas na primeira série (p = 0,017). Quanto à DMR, não foram encontradas diferenças entre os grupos (p = 0,80) e séries (p= 0,06). Conclui-se que o tempo de experiência no TF interferiu na realização do número máximo de repetições apenas na primeira série... (AU)

Strength training (TF) provides central and morphological adaptations that influence the process of force production. Due to these adaptations, it is expected that differences in force performance occurred between men with different times of experience in the TF when tested in multiple series. Thus, this study had as objective to compare the maximum number of repetitions (NMR) performed in 3 sets between individuals with different times of experience in the TF. For this, twenty-two men were split into two groups according to the time of experience in the TF. The Very Experienced Group (GME) was represented by men older with at least 5 years in TF. The Little Experienced Group (GPE) was composed of men with 1 to 6 months of experience in TF. The groups were submitted to perform the highest number of repetitions in three sets at 80% of 1RM in the bench press exercise. In addition, mean repetition duration (DMR) was recorded and compared in each set and group. For the comparison, two ANOVAs with a single variable (NMR or DMR) and two factors (factor 1 = experience, factor 2 = set) were used. In the NMR analysis, an interaction between the factors was detected, and the NMR performed by the GME was higher than the GPE only at the first set (p = 0.017). Regarding DMR, no differences were found between groups (p = 0.80) and sets (p = 0,06). It is concluded that the time of experience in the TF interfered in the Performance of the maximum number of repetitions only at the first set...(AU)

Radiopacity of resin cements: in vitro study / Radiopacidade de cimentos resinosos: estudo in vitro

Objective: To evaluate the radiopacity of seven different resin cements, noting whether they are in accordance with the requirements of ANSI/ADA no. 27/1993 and ISO no. 4049/2000, comparing the conventional radiographic system with digital (phosphor plate). Methods: For each material, five samples were prepared that were irradiated and tested in both systems; the optical density of the cement and each step-wedge of the penetrometer were measured. From the resulting values, the equivalent for each mm of aluminum material was obtained.Results: We found the lowest values in AllCem-FGM, Joinville, Brazil (2.06 and 4.63 Eq mmAl), and the highest values in the Fill Magic Dual Cement-Vigodent, Rio de Janeiro, Brazil (4.03 and 9.20 mmAl eq). Through the F-test (ANOVA) with two factors, a significant difference was confirmed between the two system types (p <0.05) and between cements (p <0.05). On the other hand, the interaction between type of system and cement was not significant (p> 0.05). Through the Tukey test, a significant difference was found between the cement Fill Magic Dual Cement (Vigodent, Rio de Janeiro, Brazil) and each of the other cements: AllCem (FGM, Joinville, Brazil), Cement Post (Angelus, Londrina, Brazil), RelyX Unicem (3M ESPE, St. Paul, MN, USA), SET (SDI, Victoria, Australia), regardless of the system. Conclusion: All cements fell within the standards, where the AllCem (FGM, Joinville, Brazil) had the lowest value of radiopacity and Fill Magic Dual Cement (Vigodent, Rio de Janeiro, Brazil) the highest, irrespective of the type of system.

Objetivo: Avaliar a radiopacidade de sete cimentos resinosos diferentes, observando se os mesmos encontram-se de acordo com as normas da ANSI / ADA n. 27/1993 e ISO n. 4049/2000, comparando-se o sistema radiográfico convencional com o digital (placa de fósforo). Métodos: Para cada material confeccionaram-se cinco amostras, que foram irradiadas, e analisadas em ambos os sistemas, mediram-se a densidade óptica dos cimentos e de cada degrau do penetrômetro. A partir dos valores encontrados obteve-se o equivalente em milímetros de alumínio para cada material. Resultados: Constatou-se menores valores no AllCem-FGM, Joinville, Brasil (2,06 e 4,63 Eq mmAl), e maiores no Fill Magic Dual Cement-Vigodent, Rio de Janeiro, Brasil (4,03 e 9,20 Eq mmAl) . Através do teste F (ANOVA) com dois fatores se comprovou diferença significativa entre os dois tipos de sistema (p < 0,05) e entre os cimentos (p < 0,05). Por outro lado, a interação do tipo de sistema e cimento não se mostrou significativa (p > 0,05). Através do teste de Tukey se evidenciou diferença significativa entre o cimento Fill Magic Dual Cement (Vigodent, Rio de Janeiro, Brasil) com cada um dos cimentos: AllCem (FGM, Joinville, Brasil), Cement Post (Angelus, Londrina, Brasil), RelyX Unicem (3M ESPE, Saint Paul, EUA), seT (SDI, Victória, Austrália), independente do tipo de sistema.Conclusão: Todos os cimentos estavam dentro das normas, onde o AllCem (FGM, Joinville, Brasil) apresentou menores valores de radiopacidade e o Fill Magic Dual Cement (Vigodent, Rio de Janeiro, Brasil) os maiores, independente do tipo de sistema.

The influence of composite resin restorations and lining on radiographic diagnosis and decision-making: an in vitro investigation.

The objective of this study was to evaluate the influence of resin-based restorations on the interpretation of digital and conventional radiographic images and to correlate the proposed diagnosis with decision-making. Class II cavities were prepared in one of the proximal surfaces of extracted human molars. Teeth were divided into five groups (n = 10) according to the restoratives used: Natural Flow (NF) and Filtek Supreme (FS); Filtek Flow (FF) and FS; Tetric Flow (TF) and FS; Protect Liner F (PLF) and FS; and FS alone. Bitewing radiographs were taken using conventional and digital systems. Subjective analysis was performed for each surface: no restoration; restored teeth; or restored teeth with gap. Based on the given diagnosis, clinical conduct was then indicated. Material radiopacity was determined according to ISO 4049. A Fisher exact test evaluated the influence of the restoratives on the diagnosis. Means were compared using ANOVA and the Games-Howell test. A Friedman test was used to analyze the influence of the systems on the diagnosis, and a binomial test was used to analyze the association between the presence of gaps and the decision to replace the restoration (P = 0.05). For each system, TF+FS was significantly associated with a high percentage of correct diagnoses. The opposite was the case for PLF+FS, which differed from all other groups. Radiographic systems presented similar behaviors, except for NF+FS. Apart from PLF, adequate radiopacity was observed. Diagnosis was influenced by restorative materials, regardless of the radiographic system used. The low radiopacity of PLF led to a greater number of erroneous diagnoses. Moreover, the decision-making process was influenced strongly by the given diagnosis.

Influence of materials radiopacity in the radiographic diagnosis of secondary caries: evaluation in film and two digital systems.

OBJECTIVES: The aim of this study was to evaluate the influence of restorative materials on false-positive diagnoses of secondary caries using three imaging systems. METHODS: Class II preparations were made on the occlusal and mesial or distal faces of extracted healthy third molar teeth. The teeth were divided into five groups and, with the exception of Group 5, they received a flow resin base. Groups 1, 2, 3 and 4 received a layer of Natural Flow (DFL, Rio de Janeiro, Brazil), Filtek Flow (3M-ESPE, St. Paul, MN), Tetric Flow (Ivoclar/Vivadent, Liechtenstein, Germany) and Protect Liner F (Kuraray, Okayama, Japan) resins, respectively, and were restored with Filtek Supreme resin (3M-ESPE). Group 5 was restored with Filtek Supreme resin. The images on film and on the Digora Optime® (Helsinki, Finland) and charge coupled device (CCD) IOX (IOX, Monninkylä, Finland) digital systems were evaluated by five examiners and the data were analysed using the Fisher's exact and Friedman tests at a 5% level of significance. RESULTS: Group 3 showed the highest rate of correct answers (restored tooth) and the lowest proportion of secondary caries diagnosis (P ≤ 0.05). Group 4 showed the highest rate of secondary caries diagnosis and the lowest proportion of correct answers (P ≤ 0.05). The systems for obtaining images presented were similar for each material. CONCLUSIONS: The restorative material was found to have an influence on the diagnosis of secondary caries lesions by imaging. The imaging system had no influence. Materials with greater radiopacity, higher than that of enamel, were favourable for a true-negative diagnosis.

Radiopacidade de pinos de fibra de vidro e cimentos resinosos auto-adesivos: avaliação no filme e sistemas digitais / Radiopacity of pins and fiberglass self-adhesive resin cements: evaluation in the film and digital systems

Wste trabalho teve por objetivos avaliar a radiopacidade de cimentos resinosos e pinos de fibra de vidro no filme e sistemas digitais, e a influência destes materiais quando inseridos no canal radicular...

The aim of this study was to evaluate the radiopacity of the resinous cements and glass fiber dowels on film and digital systems and evaluate the influence of these materials when inserted into the root canal...

Comparative analysis of the radiopacity of MTA and Portland cement in conventional and digital radiographic systems / Análise Comparativa da Radiopacidade do MTA e Cimento Portland nos Sistemas Radiográficos Digitais e Convencionais

Objetivo: O presente estudo teve como objetivo avaliar a radiopacidade do Agregado de trióxido mineral (MTA) e Cimento Portland (PC) em imagens radiográficas convencionais e digitais a fim de verificar se estão em conformidade com a especificação ANSI / ADA. Materiais e Métodos: Cinco corpos de prova para cada material com 10mm de diâmetro, 1mm de espessura e um penetrômetro foram expostos a 70kVp, 8mA a uma distância foco-filme de 30cm. Os tempos de exposição foram 0,4 e 0,2 s para o filme Insight Kodak e sistema digital CR Kodak 7400, respectivamente. A densidade óptica foi medida na radiografia através de um fotodensitômetro e o valor de pixel foi obtido para as imagens digitais. Um gráfico dos valores obtidos versus mmAl foi elaborado a fim de gerar uma curva de radiopacidade dos degraus do penetrômetro, obtendo a correspondência em equivalência de mmAl dos materiais estudadosUm gráfico foi feito para os valores medidos em comparação mmAl, a fim de gerar uma curva de radiopacidade dos passos penetrômetro, obtendo-se a correspondência de equivalência de mmAl dos materiais estudados. Resultados: O teste estatístico de Mann-Whitney mostrou diferença estatística significativa na radiopacidade entre MTA e PC, tanto no sistema convencional (valor p = 0,009) e digital(valor p = 0,009). O mesmo teste também mostrou diferença estatística significativa entre os sistemas convencionais e digitais em ambos os materiais (p = 0,016 valueMTA-e p-valuecp = 0,009).Conclusões: MTA e CP não apresentaram radiopacidade dentro dos padrões exigidos pela especificação N ○ 57 do American National Standards / American Dental Association.

Objective: The present study aimed to evaluate the radiopacity of Mineral Trioxide Aggregate (MTA) and Portland Cement (PC) in conventional and digital radiographic images in order to verify if they are in accordance with ANSI/ADA specification. Materials and Methods: For each material five test specimens with 10mm of diameter, 1mm of thickness and a stepwedge were exposed at 70kVp, 8mA and focal distance of 30cm. Exposure times were 0,4 and 0,2s for Kodak Insight film and Kodak CR 7400 digital system, respectively. The optic density was measured in the radiograph using a photo-densitometer and the value of pixel was obtained for digital images. A graph was made for measured values versus mmAl in order to generate a radiopacity curve of the stepwedge steps, obtaining the correspondence in equivalence of mmAl of the studied materials. Results: The statistical Mann-Whitney test showed statistical significant difference in the radiopacity between MTA and PC in both conventional (p value = 0,009) and digital (p value = 0,009) systems. The same test also showed statistical significant difference between conventional and digital systems in both materials (p-valueMTA=0,016 and p-valuecp = 0,009). Conclusions: MTA and CP did not show radiopacity inside of the standards demanded by specification N○ 57 of the American National Standards/ American Dental Association.

Restauração indireta em cerômero - cristobal: relato de caso clínico / Ceromer indirect restoration - cristobal: clinical report

A constante evolução dos materiais odontológicos e o desenvolvimento de novos materiais restauradores indiretos do tipo metal-free,dentre os quais destacam-se os cerômeros, vem trazendo uma nova perspectiva para a Odontologia estética. Este trabalho revisa a literatura sobre os cerômeros, abordando suas vantagens, desvantagens e emprego clínico.

Influência de materiais restauradores na interpretação radiográfica / Restorative material influence on radiographic interpretation

O objetivo deste trabalho foi avaliar a influência de materiais restauradores na interpretação radiográfica de imagens compatíveis com cáries proximais recorrentes. Foram utilizados vinte dentes humanos posteriores que exibiam cárie proximal ou ocluso-proximal sem comprometimento pulpar, além de dez dentes hígidos, que foram selecionados por meio de exame clínico e radiográfico interproximal. Os dentes que possuíam cárie foram preparados, removendo-se o tecido cariado, e restaurados, de modo que cada dente possuísse apenas uma restauração, a qual poderia ser ocluso-mesial ou ocluso-distal. Das vinte restaurações, dez receberam a resina tipo flow (Natural Flow®, DFL) como base, e as demais, apenas a resina composta (TPH Spectrum®, Dentisply). Os dentes restaurados fora, radiografados pela técnica interproximal, e as imagens, avaliadas subjetivamente pos seis examinadores. Para avaliação da concordância interexaminadores, foi realizado o teste de Kappa, sendo utilizadp o teste qui-quadrado para verificar a influência dos materias na interpretação das radiografias. O valor de Kappa foi igual a 0,18, indicando uma concordância fraca entre os examinadores, e o valor de p foi igual a 0,3991, o que indicou não existir diferença significativa entre os grupos. Conclui-se que os materiais testados não interferiram na interpretação de imaens radiográficas de cáries secundárias em restaurações classe II.