Vertical Misfit of Single-Implant Abutments Made from Different Materials Under Cyclic Loading

Butignon, Luís Eduardo; Basílio, Mariana de Almeida; Santo, Julia Sgavioli; Filho, João Neudenir Arioli

doi:10.11607/jomi.4477

Cited by 8 publications

(11 citation statements)

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“… 2 , 8 , 9 The use of trans-sinus implants has also previously been reported by other authors; however, other authors have used conventional implants up to 15-mm long. 6 , 7 , 12 , 13 The particularity of the present technique lies in the use of extra-long trans-sinus implants up to 24 mm, described in 2017. 8 However, biomechanical analyses of these rehabilitations are still inadequate in the literature, a factor that prompted the present study.…”

Section: Discussionmentioning

confidence: 99%

“…The anchoring technique with trans-sinus implants consists of crossing the implant through the maxillary sinus after elevating the sinus membrane and stabilizing it in the anterior wall of the maxillary sinus or the wall of the nasal fossa. 6 , 7 Therefore, the implants need to be longer, i.e., 18‒24 mm in length. 8 The present study aimed to compare the biomechanical performance of total edentulous rehabilitation, the all-on-four concept with tilted implants, and rehabilitation with the use of long trans-sinus implants, subjected to immediate loading in atrophic maxillae, using the finite element analysis (FEA).…”

Section: Introductionmentioning

confidence: 99%

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Biomechanical behavior of atrophic maxillary restorations using the all-on-four concept and long trans-sinus implants: A finite element analysis

Carvalho

Francischone

et al. 2021

J Dent Res Dent Clin Dent Prospects

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Background. Maxillary bone atrophy with a considerable amount of pneumatization and anterior expansion of the maxillary sinus might be a situation limiting oral rehabilitation with osseointegrated implants. Therefore, the present study aimed to biomechanically evaluate two rehabilitation techniques for maxillary bone atrophy: all-on-four and long trans-sinus implants. Methods. Two three-dimensional models consisting of atrophic maxilla with four implants were simulated. In the M1 model, two axially inserted anterior implants and two tilted implants, 15 mm in length, placed tangential to the maxillary sinus’s anterior wall were used. In the M2 model, two axially inserted anterior implants and two trans-sinus tilted implants, 24 mm in length, were used. For the finite element analysis (FEA), an axial load of 100 N was applied on the entire extension of the prosthesis, simulating a rehabilitation with immediate loading. The peri-implant bone and the infrastructure were analyzed according to the Mohr-Coulomb and Rankine criteria, respectively. Results. The results were similar when the stresses on peri-implant bone were compared: 0.139 and 0.149 for models 1 and 2, respectively. The tension values were lower in the model with trans-sinus implants (27.99 MPa). Conclusion. It was concluded that the two techniques exhibited similar biomechanical behavior, suggesting that the use of long trans-sinus implants could be a new option for atrophic maxilla rehabilitation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biomechanical behavior of atrophic maxillary restorations using the all-on-four concept and long trans-sinus implants: A finite element analysis

Carvalho

Francischone

et al. 2021

J Dent Res Dent Clin Dent Prospects

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“…In this experiment, we measured the reverse torque value which can be used to indirectly investigate screw loosening 17,27) . In recent years, it was also reported that abutment screws using titanium abutments is easy to loose compared to zirconia abutments 12) .…”

Section: Reverse Torque Valuementioning

confidence: 99%

“…Methods using optical microscopes other than SEM have been used to measure marginal gaps 17,28) . However, light is reflected when observing metallic materials using an optical microscope and SEM generally yields more accurate results 17) . Therefore, the marginal gap was measured using SEM in this experiment.…”

Section: Marginal Gapmentioning

confidence: 99%

“…There are many reports on the effects of cyclic loading on implant components using the external joint system with zirconia abutments 6,7,[14][15][16][17][18] ; however, a very few studies used the internal joint system [19][20][21] . The paper that observed the inner surface of the implant body evaluated implant components with titanium and zirconia abutments only under an eccentric load 19) .…”

Section: Introductionmentioning

confidence: 99%

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Influence of eccentric cyclic loading on implant components: Comparison between titanium and zirconia abutments

et al. 2021

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The objective of this study was to investigate the effects of eccentric cyclic loading on implant components using the internal joint system with titanium and zirconia abutments. Abutments were made of either pure titanium (Ti group) or zirconia (TZP group). Cyclic loading test was conducted according to the specifications of ISO 14801. Loading condition was at 2 points assuming axial load and eccentric load. The reverse torque value reduced after the eccentric load and reduced more in the TZP group than the Ti group. Marginal gap changed after eccentric loading, and was greater in the TZP group. In the TZP group, changes in configuration were observed in the implant body, and Ti was detected on the abutment surface. From the above, the eccentric load may have worse effects than axial loads. It was suggested that the TZP group was clinically disadvantageous compared to the Ti group.

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Wear particle release at the interface of dental implant components: Effects of different material combinations. An in vitro study

et al. 2022

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Vertical Misfit of Single-Implant Abutments Made from Different Materials Under Cyclic Loading

Cited by 8 publications

References 0 publications

Biomechanical behavior of atrophic maxillary restorations using the all-on-four concept and long trans-sinus implants: A finite element analysis

Biomechanical behavior of atrophic maxillary restorations using the all-on-four concept and long trans-sinus implants: A finite element analysis

Influence of eccentric cyclic loading on implant components: Comparison between titanium and zirconia abutments

Wear particle release at the interface of dental implant components: Effects of different material combinations. An in vitro study

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