Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 5 de 5
Filter
Add filters








Type of study
Year range
1.
J. appl. oral sci ; 32: e20230172, 2024. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1550474

ABSTRACT

Abstract Objective the aim of this study was to analyze the influence of ozone therapy (OZN) on peri-implant bone repair in critical bones by installing osseointegrated implants in the tibia of ovariectomized rats. Methodology ovariectomy was performed on 30 Wistar rats, aged six months (Rattus novergicus), and, after 90 days, osseointegrated implants were installed in each tibial metaphysis. The study groups were divided into the animals that received intraperitoneal ozone at a concentration of 700 mcg/kg — OZ Group (n=15) — and a control group that received an intraperitoneal saline solution and, for this reason, was named the SAL group (n=15). The applications for both groups occurred during the immediate post-operative period on the 2nd, 4th, 6th, 8th, 10th, and 12th day post-surgery. At various stages (14, 42, and 60 days), the animals were euthanized, and tests were performed on their tibiae. These tests include histomorphometric and immunohistochemical analyses, computerized microtomography, sampling in light-cured resin for calcified sections, and confocal microscopy. The obtained data were then analyzed using One-way ANOVA and the Shapiro-Wilk, Kruskal-Wallis, and student t-tests (P<0.05). Results our findings indicate that the OZ group (3.26±0.20 mm) showed better cellular organization and bone neoformation at 14 days (SAL group, 0.90±1.42 mm) (P=0.001). Immunohistochemistry revealed that osteocalcin labeling was moderate in the OZ group and mild in the SAL group at 14 and 42 days post-surgery. The data from the analysis of calcified tissues (microtomography, histometric, and bone dynamism analysis) at 60 days showed no statistically significant differences between the groups (P=0.32). Conclusion it was concluded that ozone therapy anticipated the initial phases of the peri-implant bone repair process.

2.
Araçatuba; s.n; 2021. 48 p. ilus, graf.
Thesis in Portuguese | LILACS, BBO | ID: biblio-1438573

ABSTRACT

O objetivo deste estudo foi analisar o potencial do Bio-oss® otimizado pelo processamento ultrassônico e associação com o raloxifeno no reparo ósseo em aumento de seio maxilar de coelhos. A associação dos materiais pesquisados foi realizada pelo processamento ultrassônico com 80% de Bio-oss e 20% de Raloxifeno. Para tanto, 8 coelhos (Oryctolagus cunilicus), machos, 6 meses de idade foram submetidos ao levantamento de membrana do seio maxilar bilateralmente, em seguida os seios maxilares foram preenchidos pelos biomateriais, de acordo com o grupo experimetal, sendo 4 animais (8 seios) por grupo: grupo 1 (BS) foi realizada a aplicação do Bio-oss submetido ao processamento ultrassônico sem raloxifeno, nos dois seios. O grupo 2 (BR) foi realizada a aplicação do Bio-oss com processamento ultrassônico juntamente ao raloxifeno, nos dois seios. Foi realizada eutanásia de 2 animais de cada grupo após 2 semanas da enxertia, para análise histométrica de osso neoformado, tecido conjuntivo e material remanescente, e para as reações de imunoistoquímica através do anticorpo primário contra Runx2. Já com 6 semanas, os outros 2 animais de cada grupo foram submetidos a eutanásia para avaliação de parâmetros histométricos (HE) e imunohistoquímicos para OCN, OPG, RANKK-L e TRAP. Os resultados obtidos mostraram superioridade para o grupo BS, que apresentou mais organização tecidual no período de 14 dias, além de maior quantidade de tecido ósseo neoformado aos 14 e 42 dias (p< 0,05). A avaliação imunoistoquímica revelou similaridade entre os escores para ambos os grupos, independente do tempo e proteína analisada. Conclui-se que a adição do raloxifeno, pelo processamento ultrassônico, aumentou reduzindo a quantidade de osso neoformado(AU)


The aim of this study was to analyze the potential of Bio-oss® optimized by the ultrasonic process and association with raloxifene in bone repair in rabbit maxillary sinus augmentation. The association of the researched materials was carried out by the ultrasonic process with 80% Bio-oss and 20% Raloxifene. Eight male rabbits (Oryctolagus cunilicus), six-months of age were subjected to a bilateral maxillary sinus lifting and, they were filled with biomaterials according to two groups, with four animals (eight maxillary sinus) per group: group 1 (BS) Biooss was subjected to ultrasonic process without raloxifene in both sinuses. Group 2 (BR) performed the application of the Bio-osssubjected to ultrasonic process together with raloxifene in both sinuses. The euthanasia of two animals for each group was performed two weeks after grafting, for histometric analysis of newly formed bone, connective tissue, and remaining material, and for immunohistochemical reactions using the primary antibody against Runx2. At 6 weeks, the other two animals for each group were euthanized to evaluate histomorphometric (HE), and immunohistochemical parameters for OCN, OPG, RANK -L, and TRAP. The results obtained showed superiority for the BS group, which presented more tissue organization in the period of 14 days, in addition to a greater amount of new bone tissue at 14-, and 42- days (P< 0.05). The immunohistochemical evaluation revealed a similarity between the scores for both groups, regardless of the time and protein analyzed. It is concluded that the addition of raloxifene, through the ultrasonic process, increases the inflammatory process in the initial period, reducing bone repair(AU)


Subject(s)
Animals , Rabbits , Bone Regeneration , Sinus Floor Augmentation , Bone Transplantation , Maxillary Sinus/surgery
3.
Rev. cir. traumatol. buco-maxilo-fac ; 19(4): 38-41, out.-dez. 2019. ilus
Article in Portuguese | LILACS, BBO | ID: biblio-1253645

ABSTRACT

Introdução: O Tumor de células granulares é uma lesão, que foi descrita pela primeira vez em 1926, por Abrikosoff, ocorrendo geralmente entre a segunda e a quinta década de vida, predominantemente em mulheres negras, sendo raro o acometimento em crianças. A característica clínica é de uma lesão séssil, não sangrante, coloração da mucosa, indolor, tamanho aproximado de 1,0 cm, firme à palpação. Relato de caso: Este trabalho tem por objetivo apresentar um relato de caso de um tumor de células granulares localizado no dorso da língua de uma criança. Foi realizado excisão cirúrgica. O paciente segue em acompanhamento de 3 anos, sem recidiva. Consideracões finais: É importante relatar que o TCG é uma lesão incomum em crianças. Apresenta-se como um tumor benigno, sendo raro o aparecimento da variante maligna. Recidiva é incomum. A remoção cirúrgica é o tratamento indicado... (AU)


Introduction: Granular cell tumor is an injury that was described for the first time in 1926 by Abrikosoff, a histologically similar tumor with skeletal muscle fibers. It is suggested that this lesion originates from the skeletal muscles, this type of lesion usually occurs between the second and fifth decade of life, occurs predominantly in women and blacks, and is uncommon in children, presents as a sessile, non-bleeding, painless mucosal color lesion, approximately 1.0 cm in size, firm the palpation and the skin covering the lesion remain intact without ulcerations. Case report: Thus, this work aims to present a case report of a surgical excision of a granular cell tumor located on the back of a child's tongue after incisional biopsy and with the histopathological result confirming that it was a granular cell tumor. Surgical excision was performed under general anesthesia, where it goes through 3 years of follow-up without relapse. Final considerations: It is important to report that GCT is an uncommon injury in children. It presents as a benign tumor, being rare the appearance of the malignant variant. Relapse is uncommon. Surgical removal is the indicated treatment... (AU)


Subject(s)
Humans , Female , Child , Surgery, Oral , Tongue , Tongue/surgery , Granular Cell Tumor , Neoplasms , Biopsy , Anesthesia, General , Mucous Membrane
4.
Rev. cir. traumatol. buco-maxilo-fac ; 19(1): 30-32, jan.-mar. 2019. ilus
Article in Portuguese | BBO, LILACS | ID: biblio-1254111

ABSTRACT

A sialoadenite esclerosante crônica, também conhecida como tumor de Kutner, é uma condição, que acomete, predominantemente, glândulas salivares maiores. Clinicamente, apresenta-se como um nódulo, móvel, assintomático e de consistência endurecida. Seu diagnóstico definitivo só é conseguido através da análise histopatológica onde estão presentes: intenso infiltrado inflamatório linfocítico, atrofia acinar, fibrose do parênquima glandular e graus variáveis de esclerose. Neste artigo, é relatado um caso clínico raro de sialoadenite esclerosante crônica, localizada em glândula salivar menor... (AU)


Chronic sclerosing sialoadenitis, also known as Kutner's tumor, is a condition that predominantly affects major salivary glands. Clinically it presents as a nodule, mobile, asymptomatic, and of hardened consistency. Its definitive diagnosis is only achieved through the histopathological analysis where they are present: intense lymphocytic inflammatory infiltrate, acinar atrophy, fibrosis of the glandular parenchyma and variable degrees of sclerosis. In this article we report a rare clinical case of chronic sclerosing sialoadenitis located in the minor salivary gland... (AU)


Subject(s)
Humans , Male , Aged , Salivary Glands , Salivary Glands, Minor , Sialadenitis , Adenoma, Pleomorphic , Neoplasms
5.
Odonto (Säo Bernardo do Campo) ; 21(41/42): 9-17, jan.-dez.2013. tab
Article in Portuguese | LILACS | ID: lil-790505

ABSTRACT

Analisar as propriedades físico-químicas de sucos de fruta industrializados com formulações em pó e prontos para consumo. Método: A amostra constituída de quatorze sucos industrializados com sabores variados, sete em pó da Tang® e sete prontos para consumo da Del valle® e Kapo®, foi analisada pelos seguintes parâmetros: pH, Acidez Total Titulável (ATT) e teor de Sólidos Solúveis Totais (SST). Todos os testes foram realizados em triplicata. Os dados foram coletados por um único examinador e analisados de forma descritiva e inferencial com o teste Kruskal-Wallis e Mann-Whitney (α=0,05) no SPSS® (Statistical Package for the Social Sciences), versão 17. Resultados: Todos os sucos estudados apresentaram pH abaixo do crítico para o esmalte, todavia os sucos em pó foram mais ácidos que os sucos prontos para consumo (p< 0,05). A mediana dos valores de ATT dos sucos prontos para consumo (0,33%) foi superior a dos sucos em pó (0,05%), sem diferenças significativas entre as amostras. Na avaliação do teor de SST, os sucos prontos para consumo apresentaram-se mais concentrados que os sucos em pó com diferença significativa estatisticamente (p< 0,05). Conclusão: Os sucos de fruta industrializados analisados apresentaram valores baixo de pH e elevado teor de SST. No entanto, estas características físico-químicas foram diferenciadas de acordo com a forma de preparação e comercialização dos sucos...


To analyze the physicochemical properties of powdered and ready-to-drink industrialized fruit juices. Method: The sample consisted of fourteen industrialized juices with different flavors – seven powdered of the Tang® brand and seven ready-to-drink of the brands Del Valle® and Kapo®. The following parameters were analyzed: pH, Total Titratable Acidity (TTA) and Total Soluble Solids Contents (TSSC). All tests were performed in triplicate. Data were collected by a single examiner and analyzed by means of descriptive statistics and Kruskal-Wallis and Mann-Whitney tests (α = 0.05) on SPSS® (Statistical Package for the Social Sciences) version 17. Results: All the juices studied were below the critical pH for enamel, but the powdered juices were more acidic than were those ready-to-drink (p<0.05). The median of TTA values regarding the ready-to-drink juices (0.33%) was higher than that of the powdered ones (0.05%), with no significant differences between samples. With regard to TSSC values, the ready-to-drink juices were more concentrated than the powdered ones with a statistically significant difference (p<0.05). Conclusion: The industrialized fruit juices analyzed herein showed low pH and high TSSC. However, these physicochemical characteristics differed according to the form of preparation and commercial presentation of the juices...


Subject(s)
Humans , Industrialized Foods , Fruit and Vegetable Juices/analysis , Hydrogen-Ion Concentration , Chemical Phenomena , Reference Values , Statistics, Nonparametric
SELECTION OF CITATIONS
SEARCH DETAIL