Fiber-Reinforced Resin Fixed Prostheses on 4 Short Implants in Severely Atrophic Maxillas: 1-Year Results of a Prospective Cohort Study

Wagner, Florian; Seemann, Rudolf; Marincola, Mauro; Ewers, Rolf

doi:10.1016/j.joms.2018.02.001

Cited by 16 publications

(10 citation statements)

References 26 publications

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“…For severely atrophic maxilla, a few preliminary and pilot studies showed that the short-term performance of short implants was similar to that of conventional implants placed in the bone augmentation area, but the prognosis of short implants for full maxillary rehabilitation needs to be confirmed by larger trials with longer follow-ups. [31][32][33] From preoperative assessment, in most enrolled cases, especially for patients suffering from congenital tooth loss, the bone width beneath the junction was not sufficient to virtually place a regular size (diameter) implant. The implant could only have palatal anchorage, and no buccal bone wall was shown around the implant in the digital planning.…”

Section: Discussionmentioning

confidence: 99%

A single‐arm clinical trial investigating the feasibility of the zygomatic implant quad approach for Cawood and Howell Class 4 edentulous maxilla: An option for immediate loading

Wang

Tao

Shen

et al. 2021

Clin Implant Dent Rel Res

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Introduction:The traditional way to treat maxillary edentulous Cawood and Howell Class 4 (CH4) patients who exhibit the knife-edge ridge form of edentulous jaws that are adequate in height and inadequate in width is extensive autologous bone grafting for conventional implant placement.Purpose: To evaluate the feasibility of the zygomatic implant (ZI) quad approach in edentulous CH4 patients who presented a knife-edge ridge form in the anterior maxilla for immediate loading.Material and methods: Eligible patients with maxillary CH4 edentulism treated with the ZI quad approach were enrolled. Bone reduction and implant placement were performed under the guidance of a navigation system according to preoperative planning. The outcome variable was the implant survival rate, and additional variables were the ratio of immediate loading, complications and the relationship of the zygomatic implant path to the sinus wall. Statistical analysis was performed with the SAS statistical package.Results: Fifteen patients (3 men, 12 women; age range, 19-71 years; average age 47.2 years) eligible for the study received the ZI quad approach from January 2017 through January 2020. All ZIs achieved osseointegration, with no implant loss after early healing and a mean follow-up of 17.2 ± 6.2 months. Thirteen of 15 patients (86.7%) received immediate loading. No critical anatomic structure injuries occurred during surgery. Most mesially placed implants (23/30, 76.6%) presented ZAGA 2 and 3, and most distally placed implants were distributed in ZAGA 0 (20/30, 66.7%).Discussion: In terms of realizing immediate loading in CH4 patients with a knife-edge ridge form in the anterior maxilla, quad approaches have advantages over other

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Section: Discussionmentioning

confidence: 99%

A single‐arm clinical trial investigating the feasibility of the zygomatic implant quad approach for Cawood and Howell Class 4 edentulous maxilla: An option for immediate loading

Wang

Tao

Shen

et al. 2021

Clin Implant Dent Rel Res

View full text Add to dashboard Cite

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“…39 Fiber-reinforced resin fixed prostheses on 4 short implants in severely atrophic maxillas: 1-year results of a prospective cohort study. 40 May 2018, Vol. 76, Issue 5 39 2 (5.12%)…”

Section: Resultsmentioning

confidence: 99%

February’s 2020 Full Issue PDF

2020

J. Diagn. Treat. Oral Maxillofac. Pathol.

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This is a monthly peer-reviewed oral and maxillofacial surgery journal focused on: Microvascular and jaw reconstructive surgery, dental implants, salivary gland tumors/diseases, TMJ lesions, virtual surgical planning, implementation of ultrasonography into the practice of oral and maxillofacial surgeons. Editorial Board (EB) CompositionEB shows significant geographic diversity representing 24 opinion leaders from 13 countries: Brazil,

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“…This is completely in accordance with the present study which showed an improvement in the mechanical response with the use of silica-nylon mesh reinforcement for this prosthesis modality. In a prospective cohort study, a previous paper evaluated 18 patients restored with implant-supported fiber-reinforced resin prostheses (23). The authors did not find prosthetic failure, chipping or fracture within the first year of loading.…”

Section: Discussionmentioning

confidence: 99%

Stress distribution of complete-arch implant-supported prostheses reinforced with silica-nylon mesh

et al. 2019

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Background: This study evaluated the presence of a silica-nylon mesh and two cantilever lengths on the biomechanical behavior of complete-arch implant-supported prostheses. Material and Methods: Twenty-four (24) complete mandibular arch implant-supported prostheses were divided into 4 groups according to the presence of reinforcing mesh (with or without) and the cantilever length (molar -15 mm or premolar -5 mm). The specimens were submitted to strain gauge analysis (30-kgf, 10 s) at different points (molar and premolar). Three-dimensional models were created based on the in vitro specimens, and the results in the bone (microstrain), prostheses (tensile stress), implants and prosthetic screws (von-Mises stress) were evaluated using the finite element method (FEM). All materials were considered homogeneous, isotropic and linear. Strain gauge data were submitted to 3-way analysis of variance and the Tukey test (α=.05). FEM results were qualitatively analyzed using colorimetric graphs. Results: The microstrain magnitude for the prostheses with reinforcement was 519.91±359 and 583.33±661 without reinforcement (p=.001). The microstrain values for loading on the molar was 867.49±784 and on the premolar was 235.75±145. FEM corroborated with the in vitro findings for the bone behavior. The load application in the premolar showed reduced stress concentration, and a significant difference was observed between the presence or absence of the reinforcement for the prostheses.

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Fiber-Reinforced Resin Fixed Prostheses on 4 Short Implants in Severely Atrophic Maxillas: 1-Year Results of a Prospective Cohort Study

Cited by 16 publications

References 26 publications

A single‐arm clinical trial investigating the feasibility of the zygomatic implant quad approach for Cawood and Howell Class 4 edentulous maxilla: An option for immediate loading

A single‐arm clinical trial investigating the feasibility of the zygomatic implant quad approach for Cawood and Howell Class 4 edentulous maxilla: An option for immediate loading

February’s 2020 Full Issue PDF

Stress distribution of complete-arch implant-supported prostheses reinforced with silica-nylon mesh

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