Effect of internal hexagonal index on removal torque and tensile removal force of different Morse taper connection abutments

Silva, Thalisson Saymo de Oliveira; Alencar, Suyá Moura Mendes; Valente, Valdimar da Silva; Moura, Carmem Dolores Vilarinho Soares de

doi:10.1016/j.prosdent.2016.07.024

Cited by 23 publications

(32 citation statements)

References 24 publications

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“…Various methods, such as insertion torque, removal torque, histomorphometric analysis, Periotest, percussion test, and resonance frequency analysis (RFA) have been used to assess implant stability . However, standardized methods to evaluate and monitor implant stability are yet to be determined.…”

Section: Introductionmentioning

confidence: 99%

“…3 Various methods, such as insertion torque, removal torque, histomorphometric analysis, Periotest, percussion test, and resonance frequency analysis (RFA) have been used to assess implant stability. [13][14][15][16][17][18] However, standardized methods to evaluate and monitor implant stability are yet to be determined. The OSSTELL (Osstell, Gothenburg, Sweden) was developed nearly two decades ago in which, a transducer is attached to the implant, that is, excited by an electric or magnetic impulse generated by the device.…”

Section: Introductionmentioning

confidence: 99%

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In vitro comparison of resonance frequency analysis devices to evaluate implant stability of narrow diameter implants at varying drilling speeds in dense artificial bone blocks

Romanos

Bastardi

Kakar

et al. 2019

Clin Implant Dent Rel Res

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Background There are no studies that have assessed the implant stability quotient (ISQ) values of narrow diameter implants placed in artificial dense bone blocks at varying drilling speeds (DSs). Purpose The aim of the present in vitro experiment was to compare the performance of OSSTELL and Penguin devices to evaluate implant stability at DSs of 800 and 2000 rpm. Materials and Methods A total of 360 osteotomies were created in dense artificial bone blocks at DSs of 800 and 2000 rpm. Dental implants from three manufacturers (group‐1: NobelActive implants, Nobel Biocare, Yorba Linda, California; group‐2: Zimmer, Eztetic‐Zimmer implants, Zimmer Biomet Dental, Palm Beach Gardens, Florida; and group‐3: Astra Tech implant system, Dentsply Sirona, York, Pennsylvania) were randomly placed in these osteotomies using an insertion torque of 15 Ncm (60 implants/group). Implant stability in all bone blocks immediately following implant placement was evaluated using the OSSTELL and Penguin devices. ISQ values were presented as means ± SD. Statistical significance was set at P < .05. Results There was no significant difference in the ISQ values obtained from the OSSTELL and Penguin devices for implants in groups 1, 2, and 3. There was no significant difference when ISQ values obtained from the OSSTELL device were compared with the Penguin device for narrow diameter dental implants placed in dense bone blocks with osteotomies performed at 800 and 2000 rpm. ISQ values showed statistically significant higher values for OSSTELL compared to Penguin device. Conclusion The OSSTELL and Penguin devices are reliable for the assessment of implant stability in dense artificial bone. Implant design and site‐DS does not seem to have a significant impact of implant stability in artificial dense bone blocks.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In vitro comparison of resonance frequency analysis devices to evaluate implant stability of narrow diameter implants at varying drilling speeds in dense artificial bone blocks

Romanos

Bastardi

Kakar

et al. 2019

Clin Implant Dent Rel Res

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“…Furthermore, dental implants with Morse taper connection or internal hex connection showed similar failure rate 10 . Since these two types of connection designs have their own advantages and disadvantages, recently, manufacturers combined these two types of connection designs and came up with internal hex combined with Morse taper design 11 , 12 . Hopefully, this new design can combine the benefits of internal hex and Morse taper designs.…”

Section: Discussionmentioning

confidence: 99%

The compressive strength of implant-abutment complex with different connection designs

Huang

Pan

2019

Journal of Dental Sciences

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Background/purposeImplant-abutment connection is the component responsible for the transmitting of occlusal force from the crown down to the implant fixture. Different connection geometric structure will lead to different mechanical performance. The purpose of this study was to compare the stability of internal hex Implant -abutment connection with internal hex with Morse taper implant-abutment connection by testing their compressive strength.Materials and methodsThis was an in vitro study. The test group and the control group had 8 specimens separately. The test group was internal hex combined with Morse taper implant connection design, and the control group was internal hex connection design. Static force was applied to the specimens at a 30° angle until failure. The testing protocol was designed according to ISO14801 regulations. We compared the compressive strength of both groups.ResultsThe control group showed significantly higher compressive strength than the test group (p < 0.0001).ConclusionsFor the compressive strength of implant abutment complex, incorporating Morse taper design into internal hex connection failed to enhance its mechanical performance. According to this study, internal hex connection has higher compressive strength than internal hex connection combined with Morse taper design.

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“…Apesar da alta taxa de sucesso dos implantes osseointegráveis, ainda nos deparamos no dia a dia clínico com casos de insucesso, principalmente devidos a complicações biológicas, sobrecarga oclusal, número inadequado de implantes, ausência de passividade, micromovimentação, presença de microgaps, escolha inadequada do componente protético, fratura do implante ou componente, pré-carga e afrouxamento do parafuso de retenção (Branemark et al, 1977;Misch et al, 2005;Heitz-Mayfield, 2008;Shin et al, 2014;Lee et al, 2016;De Oliveira Silva et al, 2017;Elsayed et al, 2018).…”

Section: Perda De Torqueunclassified

“…A pré-carga é influenciada pelas propriedades físicas dos parafusos de retenção, como design e dimensões, atrito entre as superfícies, torque de inserção adequado e ciclos de aperto/afrouxamento (De Oliveira Silva et al, 2017;Xia et al, 2014;Bernardes et al, 2014).…”

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Avaliação de diferentes pilares para implantes dentários com conexão interna do tipo Tri-channel

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Effect of internal hexagonal index on removal torque and tensile removal force of different Morse taper connection abutments

Cited by 23 publications

References 24 publications

In vitro comparison of resonance frequency analysis devices to evaluate implant stability of narrow diameter implants at varying drilling speeds in dense artificial bone blocks

In vitro comparison of resonance frequency analysis devices to evaluate implant stability of narrow diameter implants at varying drilling speeds in dense artificial bone blocks

The compressive strength of implant-abutment complex with different connection designs

Avaliação de diferentes pilares para implantes dentários com conexão interna do tipo Tri-channel

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