Avaliação qualitativa e quantitativa do reparo ósseo por imagens processadas pelos programas ImageJ e ODR

Pós-graduação em Ciência Animal - FMVA

Expressão dos fatores de crescimento obtidos do plasma rico em plaquetas, no tratamento de fraturas experimentais do radio de cães

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação histológica e histomorfométrica do reparo ósseo em tíbias osteotomizadas de ratos (Rattus novergicus albinus) frente à ausência de carga e tratamento com ultrassom

Pós-graduação em Ciência Animal - FMVA

Cicatrização óssea de defeitos de tamanho crítico tratados com Aspirado de Medula Óssea, Laser em Baixa Intensidade ou a associação de ambas as terapias: estudo histológico e histométrico em calvárias de ratos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Reparo ósseo de defeitos de tamanho crítico tratados com plasma rico em plaquetas derivado do sangue periférico ou do aspirado de medula óssea associado ou não ao enxerto de osso autógeno: estudo histológico e histométrico em calvárias de ratos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Influência do plasma rico em plaquetas no reparo ósseo de defeitos de tamanho crítico em calvárias de ratos: estudo histológico e histométrico

Pós-graduação em Odontologia - FOA

Avaliação do processo de reparo periimplantar utilizando matriz óssea heterógena desmineralizada ou osso autógeno: análise histológica e histométrica em tíbias de coelhos

Pós-graduação em Odontologia - FOA

Avaliação do reparo ósseo de defeitos de tamanho crítico tratados com plasma rico em plaquetas ou com fibrina rica em plaquetas: estudo histomorfométrico e imunoistoquímico em calvárias de ratos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Influência da associação do plasma rico em plaquetas ao enxerto de osso autógeno no reparo ósseo de defeitos de tamanho crítico em calvárias de coelhos: estudo histológico e histométrico

Pós-graduação em Odontologia - FOA

Osseointegration at implants placed into delayed reimplanted roots: An experimental study in dogs

AimTo evaluate peri-implant bone repair of implants placed into the roots of delayed reimplanted teeth, in a process of ankylosis and external replacement resorption.Material and methodsThe third and fourth mandibular premolars of four (4) beagle dogs were used as experimental sites. The study was divided into three stages: stage 1 - endodontic and extraction/reimplantation session, stage 2 - decrowning session and stage 3 - implant placement. Two groups were identified: (I) immediate implants, including implants installed in fresh extraction sockets of the distal roots, and (II) experimental implants, including implants installed into the retained ankylotic mesial roots. In each group, 16 implants were planned to be inserted, but only 9 immediate implants and 12 experimental implants were used for analyses. Implants were intended to heal in a submerged mode. After 4 months of healing, the animals were sacrificed and ground sections were obtained for histomorphometric evaluation.ResultsEleven of the twelve implants in the experimental group were found successful regarding clinical and radiographic aspects. For immediate implants, a lower BIC% was found at the coronal portion (BIC% 1=42.2%) compared with the three most coronal threads portion (BIC% 2=55.1). Also, experimental implants presented a lower BIC% at the coronal portion (BIC% 1=36.9%) compared with the three most coronal threads portion (BIC% 2=45.3).ConclusionComparison between groups showed a higher degree of BIC% and mineralization in immediate group compared with experimental group. The differences, however, did not yield statistical significance.

Resveratrol improves bone repair by modulation of bone morphogenetic proteins and osteopontin gene expression in rats

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Filling of extraction sockets of feline maxillary canine teeth with autogenous bone or bioactive glass

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito de três sistemas de osteotomia - ultrassom cirúrgico, laser Er, Cr: YSGG e sistema rotatório - sobre o processo de osseointegração e reparo de defeitos ósseos em tíbia de ratos: estudo histomorfométrico, imuno-histoquímico e biomecânico

Pós-graduação em Odontologia - FOAR

Cellular behavior as a dynamic field for exploring bone bioengineering: A closer look at cell-biomaterial interface

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The edentulous ridge expansion (ERE) technique an experimental study in the dog

Objective: To compare the healing and bony crest resorption at implants installed conventionally or applying an edentulous ridge expansion (ERE) technique in the maxilla.Material and methods: In six Labrador dogs, the first and second maxillary incisors were extracted bilaterally. In the left side of the maxilla (Test), the flaps were elevated and the buccal plate of the alveoli and septa was removed. After 3 months of healing, partial-thickness (split) flaps were dissected and the residual alveolar bone was exposed. In the right side of the maxilla, an implant was installed conventionally (Type IV; Control) while, in the left side, the ERE technique was adopted. Hence, an expansion of the buccal bony crest was obtained, and the implant was subsequently installed (Test). After 3 months of healing, biopsies were obtained and ground sections were prepared for histological analyses.Results: A buccal vertical resorption of the bony crest of 2.2 +/- 1.2 mm and 1.6 +/- 0.7 mm was found at the test and control sites, respectively. The difference, however, did not reach statistical significance. The coronal level of osseointegration at the buccal aspect was located at 3.1 +/- 1.0 mm and 2.2 +/- 0.7 mm from the implant shoulder at the test and control sites, respectively, the difference being statistically significant. The mean values of the mineralized bone-to-implant contact (MBIC%) ranged from 43% to 48% at the buccal and lingual sites. No differences reached statistical significance.Conclusions: Implants installed by applying an ERE technique may osseointegrate similarly to conventional implant installation. However, vertical and horizontal resorption of the displaced buccal bony wall occurred as well.