Artigo internacional
Management of Zygomatic Fixture Complication Case Using Extra-Short Implants
Authors
Guilherme Bertolotti Benatto, Cleuber Rodrigo de Souza Bueno, Victor Prado Curvêllo, Filho Nary
P
Journal of Craniofacial Surgery
Description
The oral rehabilitation of a patient with atrophic maxilla is one of the main challenges in implant-supported rehabilitations. The implant placement in the posterior region of the maxilla is limited by a deficiency of bone quantity and quality, besides the anatomic restriction of the maxillary sinus. The use of zygoma fixtures, anchoraged in the zygomatic bone, is a useful technique to enable the full arch rehabilitation. However, complications related to this procedure bring a lot of difficulty in solving. This study presents the use of extra-short implants as a strategy to treat a patient in whom the zygoma fixture and the fixed prosthesis failed, associated with sinusitis and alveolar bone loss.
ARTIGO INTERNACIONAL
Comparative study between standard and inside-out vein graft techniques on sciatic nerve repair of rats. Muscular and functional analysis
Authors
Cleuber Rodrigo de Souza Bueno, Mizael Pereira, Idvaldo Aparecido Favaretto-Júnior, Rogerio Leone Buchaim, Jesus Carlos Andreo, Antônio de Castro Rodrigues, Geraldo Marco Rosa-Júnior
Acta cirurgica brasileira
Description
Purpose: To compare the functional result of standart vein grafts and inside-out vein graft technique on sciatic nerve repair. Methods: We used 24 male Wistar rats divided into 4 groups: control group (CG), standard vein graft group (SVG), Inside-out vein graft group (IOVG) and denervated Group (DG). SVG, IOVG and DG underwent total section of the sciatic nerve, SVG and IOVG however underwent nerve repair surgery using a graft with normal jugular vein and inside-out jugular vein, respectively. Histological analysis of the soleus and Extensor Digitorum Longus (EDL), and Sciatic Functional Index were used to compare the results after 6 weeks. Results: Both grafts acted favorably in muscle recovery and improved functionality; They were similar in all parameters, however, in more points SVG achieved similar to the CG, in the other hand IOVG more times was similar to DG. Fact that makes the graft with normal vein the most viable option between the two options. Conclusion: Both types of grafts acted beneficially wherein the graft normal vein has proved to be the best option
ARTIGO INTERNACIONAL
Analysis of vertical marginal discrepancy in feldspathic porcelain crowns manufactured with different CAD/CAM systems: Closed and open
Authors
Fabio Kricheldorf, Cleuber Rodrigo de Souza Bueno, Wilson da Silva Amaral, Joel Ferreira Santiago Junior, Hugo Nary Filho
European journal of dentistry
Description
Objective:
The objective of this study is to compare the marginal adaptation of feldspathic porcelain crowns using two computer-aided design/computer-aided manufacturing systems, one of them is open and the other is closed.
Materials and Methods: Twenty identical titanium abutments were divided into two groups: open system (OS), where ceramic crowns were created using varied equipment and software, and closed system (CS), where ceramic crowns were created using the CEREC system. Through optical microscopy analysis, we assess the marginal adaptation of the prosthetic interfaces. The data were subjected to the distribution of normality and variance. The i-test was used for the analysis of the comparison factor between the groups, and the one-way ANOVA was used to compare the variance of crown analysis regions within the group. A significance level of 5% was considered for the analyses
ARTIGO INTERNACIONAL
Authors
Jéssica Barbosa de Oliveira Gonçalves, Daniela Vieira Buchaim, Cleuber Rodrigo de Souza Bueno, Karina Torres Pomini, Benedito Barraviera, Rui Seabra Ferreira Júnior, Jesus Carlos Andreo, Antonio de Castro Rodrigues, Tania Mary Cestari, Rogério Leone Buchaim
Journal of Photochemistry and Photobiology B: Biology
Autogenous bone grafts are used to repair bone defects, and the stabilization is needed for bone regeneration. Laser photobiomodulation is a modality of treatment in clinical practice for tissue regeneration, and it has therapeutic effects as an anti-inflammatory, analgesic and modulating cellular activity. The aim of the present study was to evaluate the effects of low-level laser therapy (LLLT) on an autogenous bone graft integration process stabilized with a new heterologous fibrin sealant. Forty rats were divided into two groups: Autogenous Fibrin Graft (AFG, n = 20), in which a 5 mm dome osteotomy was conducted in the right parietal bone and the graft was adhered to the left side using fibrin sealant; and Autogenous Fibrin Graft Laser (AFGL, n = 20), which was subjected to the same procedures as AFG with the addition of LLLT. The treatment was performed immediately following surgery and then three times a week until euthanasia, using an 830 nm laser (30 mW, 6 J/cm2, 0.116 cm2, 258.6 mW/cm2, 2.9 J). Five animals from each group were euthanized at 10, 20, 30 and 40 days postoperative, and the samples were submitted to histomorphological and histomorphometric analysis. Partial bone regeneration occurred, with new bone tissue integrating the graft to the recipient bed and small areas of connective tissue. Comparative analysis of the groups at the same intervals revealed minor interfaces in group AFGL, with statistically significant differences (p < 0.05) at all of the analyzed intervals (10 days p = 0.0087, 20 days p = 0.0012, 30 days p < 0.0001, 40 days p = 0.0142). In conclusion, low-level laser therapy stimulated bone regeneration and accelerated the process of integration of autogenous bone grafts.