Biomaterial properties of titanium in dentistry

Prasad, Soni; Ehrensberger, Mark T.; Gibson, Monica Prasad; Kim, Hyeong-Il; Monaco, Edward A.

doi:10.1016/j.job.2015.08.001

Cited by 113 publications

(95 citation statements)

References 78 publications

(137 reference statements)

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“…Suas propriedades e características fazem com que este elemento químico, classificado como metal de transição leve, seja bastante empregado em muitas áreas (Mc CRAKEN et al, 1999;PRASAD et al, 2015).…”

Section: Titânio (Ti)unclassified

“…Com o avanço das pesquisas envolvendo o titânio e suas ligas, seu uso na fabricação de implantes ortopédicos e odontológicos teve um aumento exponencial devido à presença da excelente biocompatibilidade, alta resistência à corrosão, alta resistência mecânica e a baixa densidade (KIRMANIDOU et al, 2016;SHAH et al, 2016;TEKER et al, 2015;SOUZA et al, 2015;MANERA et al, 2009 CRAKEN et al, 1999;MISCH, 2008;MANERA et al, 2009 (PRASAD et al, 2015;Mc CRACKEN et al, 1999).…”

Section: Titânio (Ti)unclassified

“…Os elementos de liga são classificados em α e β estabilizadores conforme a variação das temperaturas, abaixo e acima de 883º C, de transformação alotrópica do titânio, respectivamente, caracterizando as diferenças dos graus de titânio (SHAH et al, 2016;Mc CRACKEN et al, 1999 (SHAH et al, 2016;FARIA et al, 2014;PRASAD et al, 2015;Mc CRACKEN et al, 1999). Na figura 2, há a estrutura cristalina do Ti e os tipos de fase em que se encontram o Ti abaixo ou acima de 882º C. de elementos α e β estabilizadores; por conseguinte, a formação de fases α e β é levado para a temperatura ambiente (CASAVOLA et al, 2011).…”

Section: Titânio (Ti)unclassified

“…Quando entra em contato com algumas substâncias como ácidos, fluoretos e saliva, a proteção contra o óxido é extinta e o processo de biocorrosão pode ser iniciado. Dessa forma, processos eletroquímicos se iniciam e estão mais propensos a quebras e liberam íons de partículas no meio (SHAH et al, 2016;KIRMANIDOU et al, 2016;SOUZA et al, 2015;PRASAD et al, 2015;DOS SANTOS et al, 2014;MIRANDA, 2013;BARÃO et al, 2012;HUANG, 2003).…”

Section: Revisão De Literatura 45unclassified

“…O titânio comercialmente puro (TiCp), amplamente utilizado como biomaterial, constitui quatro graus distintos (grau I, II, III e IV), dentre esses tipos, o TiCp grau IV possui maior resistência mecânica e tem teores de até 98% de pureza. No entanto, quando se trata de uma liga de titânio, a liga titânio-alumínio-vanádio (Ti6Al4V), mais utilizada na área médica, é menos presente na odontologia por ser menos estudada, é nomeada como titânio grau V, possui boas propriedades mecânicas, resistência à corrosão e biocompatibilidade (SHAH et al, 2016;FARIA et al, 2014;PRASAD et al, 2015;DEGIDI et al, 2008;Mc CRACKEN et al,1999). Quanto aos estudos, Stenport et al, 2008, Han et al,1998, e Johansson et al,1993 (ZWEERS et al, 2015;SOHRABI et al,2012;AL-NAWAS et al,2012;FERRARIS et al, 2011;DEGIDE et al, 2008).…”

Section: Introductionunclassified

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Avaliação histológica e histomorfométrica da energia superficial e molhabilidade em implantes de titânio grau IV e grau V: estudo experimental em coelhos

Miranda¹

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Section: Titânio (Ti)unclassified

Section: Revisão De Literatura 45unclassified

Section: Introductionunclassified

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Avaliação histológica e histomorfométrica da energia superficial e molhabilidade em implantes de titânio grau IV e grau V: estudo experimental em coelhos

Miranda¹

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On the influence of Streptococcus salivarius on the wear response of dental implants: An in vitro study

et al. 2018

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This study aims to understand microorganisms' effect and relevance of aseptic conditions on wear performance of dental materials. Tribocouple zirconia/titanium was submitted to tribological tests in the presence of Streptococcus salivarius biofilm, the most abundant bacteria in the oral cavity. Reciprocating ball‐on‐plate tests were carried out at 37°C, pH 7, 2 N, and 1 Hz, during 2 h, using Ti6Al4V balls as pins and Y‐TZP plates. Simultaneous OCP readings assessed corrosion tendency. Tested lubricants were artificial saliva, artificial saliva plus glucose, and artificial saliva plus glucose and S. salivarius. Wear volume and worn surfaces were analyzed after test. S. salivarius proliferation was enhanced in artificial saliva plus glucose. When a highly populated biofilm was present at the zirconia/titanium interface, titanium wear decreased by ~60% compared to artificial saliva and artificial saliva plus with glucose, respectively, with 0.0060 and 0.0053 mm3 loss. Wear was not observed in zirconia under any tested condition. Presence of S. salivarius also decreased corrosion activity during wear. Lowest free OCP value reached during sliding was −260 mV in artificial saliva, −246 mV in artificial saliva plus glucose, and −196 mV in artificial saliva plus glucose and bacteria. This decreased to −147 mV when a highly‐populated S. salivarius biofilm was present at the interface. Overall, obtained results show that the presence of S. salivarius clearly changes the corrosion‐wear performance of the tested dental materials, confirming that it must be recognized, and that asepsis level and conditions during wear test of dental materials must be clearly established and controlled to ensure reproducible results and supported conclusions. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1393–1399, 2019.

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Enhancement of the biocompatibility by surface nitriding of a low‐modulus titanium alloy for dental implant applications

et al. 2018

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To enhance their longevity dental implants must be highly biocompatible and must have a low elastic modulus close to that of the bone. They must also possess a high superficial hardness and a high corrosion resistance. For these reasons a recently developed low modulus Ti-27Nb alloy with non-toxic elements was treated by gas nitriding at high temperature in this study. A very thin nitrided layer of 0.5µm in thickness followed by an enriched nitrogen zone was observed. Consequently, a very high hardness evaluated at about 1800 HV was obtained in surface, which represents an increase of 4-5 times the hardness of the non nitrided alloy. This superficial hardness was experimentally observed to decrease up to 800 nm in depth from the surface to the core. The low modulus of Ti-27Nb (evaluated at 55 GPa, which is twice lower than the commercially pure titanium) was not affected by the surface nitriding treatment. A better corrosion resistance was observed as well as a significant decrease in ion release rates for the nitrided alloy (ion release of 1.41 ng/cm 2 compared to the 163.58 ng/cm 2 obtained for the commercially pure titanium at pH=7.48 in artificial Carter-Brugirard saliva). The cytocompatibility was not compromised and the cell viability performed on human osteoblasts, fibroblastic cells and epithelial cells was enhanced on the nitrided surface in comparison with the non-nitrided surface. These combined properties make the nitrided Ti-27Nb alloy a good candidate for dental implant applications.

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Biomaterial properties of titanium in dentistry

Cited by 113 publications

References 78 publications

Avaliação histológica e histomorfométrica da energia superficial e molhabilidade em implantes de titânio grau IV e grau V: estudo experimental em coelhos

Avaliação histológica e histomorfométrica da energia superficial e molhabilidade em implantes de titânio grau IV e grau V: estudo experimental em coelhos

On the influence of Streptococcus salivarius on the wear response of dental implants: An in vitro study

Enhancement of the biocompatibility by surface nitriding of a low‐modulus titanium alloy for dental implant applications

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