Banca de DEFESA: Valdor Araújo Naves Neto

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : Valdor Araújo Naves Neto
DATE: 31/10/2023
TIME: 14:30
LOCAL: Faculdade de Ciências da Saúde - Sala de Reuniões 4
TITLE:

Evaluation of the water contact angle with the smooth and treated surfaces of titanium discs subjected to contact with ozone

KEY WORDS:

Dental implant, Ozone, Wettability

PAGES: 100
BIG AREA: Ciências da Saúde
AREA: Odontologia
SUMMARY:

An important parameter for the clinical success of dental implants is the formation of direct contact between the implant surface and the surrounding bone. A key determinant in the construction of this interface during osseointegration is the influence of the implant surface composition. Implants with surface treatments such as sandblasting, macroparticles and acid etching have been extensively studied both in vitro and in vivo. The present work aims to evaluate, using oca25® contact angle optical microscopy (DataPhysics Intruments GmbH, Filderstadt, Germany), the wettability of titanium discs with treated surface and smooth surface subjected to contact with ozone. The samples consisted of 30 titanium discs, 15 with a smooth surface (Implacil, São Paulo, Brazil) and 15 with a Maestro® treated surface (Implacil, São Paulo, Brazil). From each group, 14 discs were exposed to ozone for different exposure times. The wettability of each disc was evaluated through the contact angle of the water with the respective surfaces. The discs were exposed to ozone for periods of 8, 10, 12 and 24 hours. The results showed a significant increase in the wettability of all titanium discs that came into contact with ozone, especially those with a treated surface. The period of exposure to ozone in the present research seemed to have a greater influence on the smooth surface, where the difference between 08 and 24 hours proved to be more statistically significant. Based on the results obtained, it is pertinent to conclude that contact with ozone had a strong influence on the wettability potential of titanium discs on both smooth and treated surfaces.

COMMITTEE MEMBERS:
Externo à Instituição - DANIEL REY DE CARVALHO - SÍRIO
Interna - 1796944 - FLAVIANA SOARES ROCHA
Externo à Instituição - JOAO GERALDO BUGARIN JUNIOR - UNIP
Externo à Instituição - MARCELO SOUSA GOMES - UNIEURO
Presidente - 1762709 - SERGIO BRUZADELLI MACEDO