Manoel Sant'Ana Filho
Pontifícia Universidade Católica do Rio Grande do Sul
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Publication
Featured researches published by Manoel Sant'Ana Filho.
Lasers in Medical Science | 2008
Elaine Duarte Artuso de Mello; Rogério Miranda Pagnoncelli; Egberto Munin; Manoel Sant'Ana Filho; Guilherme Paulo Scarpel de Mello; Emilia Angela Loschiavo Arisawa; Marília Gerhardt de Oliveira
This study compares the bone repair process after ostectomies performed either with the erbium:yttrium-aluminum-garnet (Er:YAG) laser or with the low-speed bur drilling. Eighteen rats were used for this study. In the control group, the ostectomy was performed with a low-speed bur drilling. In the experimental group, the ostectomy was made with an Er:YAG laser (500xa0mJ, 10xa0Hz). At 7 and 14xa0days after surgery, the experimental group presented earlier bone repair in comparison to the control group. The experimental group presented an altered layer of approximately 24-μm thickness, whereas the control group did not present any altered layer in the margins of the ostectomies. At 21xa0days, the histological features of the two groups were very similar, although the altered layer could still be seen. The Er:YAG laser successfully promoted the ablation of the bone tissue, but caused some thermal damage at the margins of the ostectomies.
Acta Cirurgica Brasileira | 2007
Arlei Cerqueira; Roger Lanes Silveira; Marília Gerhardt de Oliveira; Manoel Sant'Ana Filho; Cláiton Heitz
PURPOSEnTo analyze the microscopic characteristics of the effect of Gallium-Aluminum Arsenid diode laser (GaAlAs - 830etam) applied during the activation and consolidation period to ovine mandibles submitted to distraction osteogenesis.nnnMETHODSnEighteen sheep underwent surgery in order to have bone distractors implanted in the left side of the jaw area. They were divided into three groups: 1 - Control; 2 - Laser irradiation during the activation period; 3 - Laser irradiation during the fixation period. The irradiation was carried out in five sessions, on every other day, with 4,0J/cm(2) doses applied to four pre-established areas, totaling 16J per session. After four days of latency under post-operative care, ten days of distractor activation (at 1mm/day) and twenty-one days of fixation the animals were sacrificed and the devices removed for microscopic analysis.nnnRESULTSnThe groups that received laser irradiation (GaAlAs) presented a greater amount of mineralized bone trabeculae when compared to the Control Group. Despite that, cartilaginous tissues were also found in Group 2.nnnCONCLUSIONnThe laser has been more favorable when used in the consolidation period, after bone elongation.
International Journal of Pediatric Otorhinolaryngology | 2008
Hedelson Odenir Iecher Borges; Rosilene Andrea Machado; Michele Vidor; Rodrigo Gomes Beltrão; Cláiton Heitz; Manoel Sant'Ana Filho
This paper reports four cases of central giant cell granuloma (CGCG) treated with calcitonin, attesting the efficacy and safety of its use as the chosen therapy for large CGCG. Four patients presenting CGCG treated with calcitonin were included in this study. Salmon calcitonin was administered for 6-28 months. It was observed determination of clear lesion limits for surgery, reduction and limitation of lesions. In aggressive cases, the calcitonin therapy was an excellent option, since it does not harm the patient, and a far less aggressive, complementary surgery may be performed in certain cases, avoiding life-long sequelae.
Materials Research-ibero-american Journal of Materials | 2011
Gisela Grandi; Cláiton Heitz; Luiz Alberto dos Santos; Miguel Luciano Silva; Manoel Sant'Ana Filho; Rogerio Miranda Pagnocelli; Daniela Nascimento Silva
This study compared the effect of two bioceramics on the process of bone repair: α-tricalcium phosphate (α-TCP) cement and β-tricalcium phosphate hydroxyapatite particles (β-TCP/HA). Calvarial defects were created in 50 rats, divided into two groups (α and β/HA). Software was used at 7, 21, 60, 90 and 120 days to assess bone formation. Mean new bone formation rates were as follows: α group, 1.6% at 7 days, 5.24% at 21 days, 24% at 60 days, 30.21% at 90 days and 50.59% at 120 days; β/HA group, 1.94% at 7 days, 2.53% at 21 days, 12.47% at 60 days, 26.84% at 90 days and 38.82% at 120 days; control group, 0.15% at 7 days, 10.12% at 21 days, 15.10% at 60 days, 18.94% at 90 days, 48.50% at 120 days. Both materials are osteoconductive and biocompatible. Perhaps the larger rate of new bone formation observed in the α-TCP group, it also occurs in the β-TCP/HA group within a longer time period.
Rev. bras. odontol | 2005
Gisela Grandi; Renata P Cançado; Manoel Sant'Ana Filho
Revista da Faculdade de Odontologia de Porto Alegre | 2004
Alexey Gaspar Martins Ferreira; Renata Sesti Diefenbach; Cláiton Heitz; Manoel Sant'Ana Filho
balkan conference in informatics | 2001
Arlei Cerqueira; Manoel Sant'Ana Filho
Revista de Cirurgia e Traumatologia Buco-maxilo-facial | 2010
Leonardo Costa de Almeida Paiva; Marconni Eduardo Souza Maciel Santos; Daniela Nascimento Silva; Cláiton Heitz; Manoel Sant'Ana Filho
Rev. Fac. Odontol. Porto Alegre | 2002
Arlei Cerqueira; Adriane Subtil de Oliveira; Manoel Sant'Ana Filho; Elaine Bauer Veeck
Rev. Fac. Odontol. Porto Alegre | 1994
Rogério Miranda Pagnoncelli; Manoel Sant'Ana Filho