Effects of the Implant Design on Peri‐Implant Bone Stress and Abutment Micromovement: Three‐Dimensional Finite Element Analysis of Original Computer‐Aided Design Models

Yamanishi, Yasufumi; Yamaguchi, Satoshi; Imazato, Satoshi; Nakano, Tamaki; Yatani, Hirofumi

doi:10.1902/jop.2014.140107

Cited by 39 publications

(72 citation statements)

References 26 publications

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“…Implant design affects peri-implant bone stress in the anterior maxilla 18. Implant designs with platform switching cause lower osseous stresses and strains than other implant designs 19.…”

Section: Discussionmentioning

confidence: 99%

Bite force and dental implant treatment: a short review

Flanagan¹

2017

MDER

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Dental implants are placed endosseously, and the bone is the ultimate bearer of the occlusal load. Patients are not uniform in the maximum bite force they can generate. The occlusal biting load in the posterior jaw is usually about three times of that found in the anterior. It is possible for supporting implants to be overloaded by the patients’ biting force, resulting in bone loss and failure of the fixture. Bite force measurement may be an important parameter when planning dental implant treatment. Some patients can generate extreme biting loads that may cause a luxation of the fixture and subsequent loss of osseointegration. A patient with low biting force may be able to have a successful long-term outcome even with poor anatomical bone qualities. Patients with a high bite force capability may have an increased risk for late component fracture or implant failure. There is no correlation of any bite force value that would indicate any overload of a given implant in a given osseous site. Nonetheless, after bite force measurement, a qualitative judgement may be made by the clinician for the selection of an implant diameter and length and prosthetic design.

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“…Implant design affects peri-implant bone stress in the anterior maxilla 18. Implant designs with platform switching cause lower osseous stresses and strains than other implant designs 19.…”

Section: Discussionmentioning

confidence: 99%

Bite force and dental implant treatment: a short review

Flanagan¹

2017

MDER

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“…This could have contributed for the heterogeneity in results and prevented the achievement of statistically significant differences in MBL changes over time in favour of the back‐tapered implants, therefore not confirming the premise (mean difference at 1 year was 0.06 mm, p = 0.80). Finite element analyses also do not show any type of advantage in terms of peri‐implant tensions (Bozkaya, Muftu, & Muftu, ; Yamanishi, Yamaguchi, Imazato, Nakano, & Yatani, ).…”

Section: Discussionmentioning

confidence: 99%

Titanium dental implants with different collar design and surface modifications: A systematic review on survival rates and marginal bone levels

Messias

Nicolau

Guerra

2018

Clinical Oral Implants Res

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Aim The aim of this study was to compare clinical and radiographic outcomes of dental implants with different neck characteristics. Methods A protocol‐oriented search aimed at the question: “In patients subjected to tooth replacement with screw‐type dental implants does the modification of the implant neck macro‐ or microgeometry contribute to the improvement of survival rates and maintenance of the peri‐implant marginal bone levels?” Primary outcomes were survival and marginal bone level (MBL) changes evaluated on randomized controlled trials with >10 participants and follow‐up >1 year. Risk of bias was evaluated using the Cochrane Collaboration's tool. The review follows the PRISMA statement. Results Forty‐three studies compared: (a) One‐ versus two‐piece implants (N = 7); (b) Two‐piece implants with different neck characteristics (machined and rough collars, microthreads, LASER microtexturing) (N = 21); (c) Two‐piece implants with macrogeometry modifications (tapering, back‐tapering, and scalloping) (N = 6). One‐ and two‐piece implants showed similar survival (RR = 0.45, 95% CI: [0.12, 1.66], p = 0.23) and MBL changes (WMD = 0.09 mm, 95% CI: [−0.27, 0.45], p = 0.64) at 1‐year post‐loading. Machined collar implants have higher risk of early failure than rough collar implants (RR = 3.96, 95% CI: [1.12, 13.93], p = 0.03) and 0.43 mm higher bone resorption (95% CI: [0.0, 0.86], p = 0.05). Microthreads (WMD = 0.07 mm, 95% CI: [−0.01, 0.15], p = 0.10) and LASER microtexturing (WMD = 0.15 mm, 95% CI: [−0.35, 0.65], p = 0.56) do not reduce bone resorption. Scalloped implants have 1.26 mm higher resorption (95% CI: [0.72, 2.00], p < 0.001). Conclusions One‐ and two‐piece implants have similar survival and MBL changes. Rough collar implants have lower MBL changes than machined collar implants. Additional modifications to rough collars are irrelevant.

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“…For simulations of three-point bending test, a 'contact' condition 25) , which accepts possible sliding, was set at the interfaces between the three rods and the specimen. Two rods were fixed, and a static load was applied to the third rod in a downward direction at the center of the specimen, until failure criteria (maximum principal (MP) stress, MP strain, XZ shear stress, and von Mises stress) reached given thresholds.…”

Section: D-feamentioning

confidence: 99%

<i>In vitro</i>/<i>in silico</i> investigation of failure criteria to predict flexural strength of composite resins

et al. 2018

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The aim of this study was to investigate a failure criterion to predict flexural strengths of composite resins (CR) by three-dimensional finite element analysis (3D-FEA). Models of flexural strength for test specimens of CR and rods comprising a three-point loading were designed. Calculation of Young's moduli and Poisson's ratios of CR were conducted using a modified McGee-McCullough model. Using the experimental CR, flexural strengths were measured by three-point bending tests with crosshead speed 1.0 mm/min and compared with the values determined by in silico analysis. The flexural strengths of experimental CR calculated using the maximum principal strain significantly correlated with those obtained in silico amongst the four types of failure criteria applied. The in silico analytical model established in this study was found to be effective to predict the flexural strengths of CR incorporating various silica filler contents by maximum principal strain.

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Effects of the Implant Design on Peri‐Implant Bone Stress and Abutment Micromovement: Three‐Dimensional Finite Element Analysis of Original Computer‐Aided Design Models

Abstract: This study reveals the effects of the design of specific components on peri-implant bone stress and abutment displacement after implant-supported single restoration in the anterior maxilla.

Cited by 39 publications

References 26 publications

Bite force and dental implant treatment: a short review

Bite force and dental implant treatment: a short review

Titanium dental implants with different collar design and surface modifications: A systematic review on survival rates and marginal bone levels

<i>In vitro</i>/<i>in silico</i> investigation of failure criteria to predict flexural strength of composite resins

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