Influence of an Alternative Implant Design and Surgical Protocol on Primary Stability

Valente, Mariana Lima da Costa; Castro, Denise Tornavoi de; Shimano, Antonio Carlos; Reis, Andréa Cândido dos

doi:10.1590/0103-6440201902324

Cited by 12 publications

(9 citation statements)

References 24 publications

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“…Secure primary stability is positively associated with successful long-term implant integration to ensure a successful clinical outcome. Initial implant stability is defined as biomechanical stability upon insertion, which is influenced by factors such as bone quantity and quality, geometry of the implant, surgical technique, and insertion torque (IT) [1][2][3][4]. New bone develops around the surface of the implant and subsequently undergoes biological fixation (secondary implant stability or osseointegration).…”

Section: Introductionmentioning

confidence: 99%

Effects of implant thread design on primary stability—a comparison between single- and double-threaded implants in an artificial bone model

et al. 2020

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Background: Primary implant stability is essential for osseointegration. To increase stability without changing the implant size, the thread length must be extended by reducing pitch, using a double-threaded implant, or reducing pitch/lead and lead angle to half that of a single-threaded implant. Materials and methods: We tested the stabilities of these configurations using artificial bone. A 1.2-mm pitch, single-threaded implant (12S) was the control. We tested a 0.6-mm pitch/1.2-mm-lead double-threaded implant (06D) and a 0.6-mm pitch/lead single-threaded implant (06S). We compared stabilities by measuring insertion torque, removal torque, and the implant stability quotient (ISQ). Damage to bone tissue caused by the implants was evaluated using microscopy and morphometric analysis. Results: We show that 06D and 06S significantly improved stability compared with the 12S reference. The stability of 06S was significantly greater compared with that of 06D, except for ISQ. The three implants were associated with bone tissue damage characterized by debris and voids surrounding the implant/bone interface. The 06D caused the most tissue damage, followed by 06S and then 12S. Conclusion: These findings indicate that primary stability was significantly improved by changing the implant size, extending the thread length with reduced pitch/lead, and reducing the lead angle to half that of a single-threaded implant compared with a double-threaded implant.

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Section: Introductionmentioning

confidence: 99%

Effects of implant thread design on primary stability—a comparison between single- and double-threaded implants in an artificial bone model

et al. 2020

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“…Para análise das propriedades mecânicas, foram utilizados o torque de inserção (TI) e ensaio de arrancamento (ASTM F543), método empregado em análises laboratoriais 5,18,19 , capaz de avaliar a resistência dos implantes (dentais ou ortopédicos; metálicos ou não) ao deslocamento vertical (força máxima), em associação às características do design e do material de inserção.…”

Section: Análise Das Propriedades Mecânicasunclassified

Influência da topografia de superfície nanométrica na estabilidade primária de mini-implantes dentários

Tardelli

Valente

Reis

2019

Rev. odontol. UNESP

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Resumo Introdução A modificação físico-química da superfície de mini-implantes utilizados no suporte de overdentures pode influenciar o desempenho mecânico dos mesmos. Objetivo Avaliar a influência de um tratamento de superfície do tipo nanométrico no desempenho mecânico de novos designs de mini-implantes. Material e método Foram utilizados 40 mini-implantes (Ti-6Al-4V), com Ø 2 mm × 10 mm de comprimento e dois designs diferentes, rosqueado e helicoidal, divididos em quatro grupos (n=10), de acordo com o modelo e a presença ou a ausência de tratamento superficial. O desempenho mecânico foi avaliado por meio de torque de inserção e ensaio de arrancamento em cilindros ósseos suínos. Análise de variância ANOVA e teste de Tukey, com significância de 5%, foram utilizados para análise estatística dos dados. Resultado Foi observada diferença estatisticamente significante entre os grupos com e sem tratamento para torque de inserção (p<0,001), e ensaio de arrancamento (p=0,006), sendo a maior média para o grupo com tratamento, independentemente do design. Na comparação entre os designs, o rosqueado apresentou média significativamente maior (p<0,001) que o helicoidal. Conclusão: O tratamento de superfície nanométrico viabilizou melhor desempenho mecânico dos mini-implantes avaliados. Com relação aos novos designs testados, o rosqueado apresentou resultados superiores ao helicoidal.

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“…Titanium alloys like Ti‐6Al‐4 V have been used for this purpose due to their superior biocompatibility, corrosion resistance, and low inflammatory potential 1,2 . However, in certain situations, such as, extremely resorbed ridges and low bone density, the use of commercial implants with predetermined geometries and surfaces is limited 3 . In such cases, custom‐made implants are an effective alternative, providing treatment solutions in a short time 4 …”

Section: Introductionmentioning

confidence: 99%

“…1,2 However, in certain situations, such as, extremely resorbed ridges and low bone density, the use of commercial implants with predetermined geometries and surfaces is limited. 3 In such cases, custom-made implants are an effective alternative, providing treatment solutions in a short time. 4 The manipulation of the chemical and physical parameters of titanium surfaces alters their biological response and allows controlling roughness and topographic characteristics to obtain structures that closely resemble the natural structure and mechanical properties of bone tissue.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the mechanical and physicochemical properties of Ti‐6Al‐4 V discs obtained by selective laser melting and subtractive manufacturing method

et al. 2020

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The surface properties of titanium and its alloys are commonly modified by different techniques, including additive manufacturing (AM), to improve the osseointegration of dental implants. The aim of this study was to evaluate and compare the wettability, topography, chemistry, and structure of titanium‐aluminum‐vanadium (Ti‐6Al‐4 V) discs fabricated by selective laser melting (SLM) and subtractive manufacturing (conventional machining). Three different groups were evaluated: selective laser melting (SLM); conventional machining with H3PO4 + NaOH surface treatment (CM + ST); and conventional machining without surface treatment (CM), including analysis of wettability and roughness, morphological and chemical analyses by scanning electron microscopy (SEM) and energy dispersive X‐ray spectroscopy (EDX), and structural characterization analysis by computed tomography (micro‐CT), and X‐ray diffraction (XRD). The results showed that SLM surface had higher roughness (9.09 ± 1.94 Ra; 51.93 ± 11.59 Rz; 11.03 ± 1.95 Sa) and lower wettability (103.23° ± 13) than CM (0.06 ± 0.01 Ra; 0.42 ± 0.078 Rz; 0.07 ± 0.01 Sa) (76.95° ± 4.18) and CM + ST (0.17 ± 0.38 Ra; 0.88 ± 0.15 Rz; 0.18 ± 0.04 Sa) (18.55° ± 6.47) (p < 0.05). SEM images also proved the higher roughness of SLM surface, and CM + ST discs showed a topography resembling a sponge, characteristic of the nanometric treatment applied. EDX and XRD found no differences between the different surfaces, and micro‐CT demonstrated the solid characteristic of the SLM disc. Compared with conventional machining, the SLM technique resulted in higher roughness and lower wettability. Meanwhile, the chemical properties and structure of the titanium alloy was not altered by the technique.

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Influence of an Alternative Implant Design and Surgical Protocol on Primary Stability

Cited by 12 publications

References 24 publications

Effects of implant thread design on primary stability—a comparison between single- and double-threaded implants in an artificial bone model

Effects of implant thread design on primary stability—a comparison between single- and double-threaded implants in an artificial bone model

Influência da topografia de superfície nanométrica na estabilidade primária de mini-implantes dentários

Analysis of the mechanical and physicochemical properties of Ti‐6Al‐4 V discs obtained by selective laser melting and subtractive manufacturing method

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