Fatigue and Fluoride Corrosion on Streptococcus mutans Adherence to Titanium-Based Implant/Component Surfaces

Autor(es)

Correa, Cassia Bellotto ^[1] ; Pires, Juliana Rico ^[2] ; Fernandes-Filho, Romeu Belon ^[2] ; Sartori, Rafael ^[2] ; Vaz, Luis Geraldo ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, Dept Dent Mat & Prosthodont, UNESP, BR-14800000 Araraquara, SP - Brazil

^[2] Sao Paulo State Univ, Dept Periodontol, UNESP, BR-14800000 Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY; v. 18, n. 5, p. 382-387, JUL 2009.
• Citações Web of Science: 28

Resumo

Purpose: The influence of fatigue and the fluoride ion corrosion process on Streptococcus mutans adherence to commercially pure Titanium (Cp Ti) implant/component set surfaces were studied. Materials and Methods: Thirty Nobel implants and 30 Neodent implants were used. Each commercial brand was divided into three groups. Group A: control, Group B: sets submitted to fatigue (105 cycles, 15 Hz, 150 N), and Group C: sets submitted to fluoride (1500 ppm, pH 5.5) and fatigue, simulating a mean use of 5 years in the oral medium. Afterward, the sets were contaminated with standard strains of S. mutans (NTCC 1023) and analyzed by scanning electronic microscopy (SEM) and colony-forming unit counts (CFU/mL). Results: By SEM, bacterial adherence was verified only in group C in both brands. By CFU/mL counts, S. mutans was statistically higher in both brands in group C than in groups A and B (p < 0.05, ANOVA). Conclusion: The process of corrosion by fluoride ions on Cp Ti implant/component sets allowed greater S. mutans adherence than in the absence of corrosion and with the fatigue process in isolation. (AU)

• Processo FAPESP: 04/09621-9 - Analise de corrosao e fratura de implantes/componentes proteicos de titanio c.p., apos serem submetidos a ciclos de fadiga em um meio fluoretado com diferentes ph.
• Beneficiário: Luis Geraldo Vaz
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 05/03166-0 - Influência do processo de fadiga e corrosão no acúmulo de microorganismos na superfície dos conjuntos implante/componente à base titânio comercialmente puro
• Beneficiário: Cássia Bellotto Corrêa
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica