The effect of static bone strain on implant stability and bone remodeling

Halldin, Anders; Jimbo, Ryo; Johansson, Carina B.; Wennerberg, Ann; Jacobsson, Maritha; Albrektsson, Tomas; Hansson, Stig

doi:10.1016/j.bone.2011.07.003

Cited by 66 publications

(69 citation statements)

References 31 publications

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“…This mechanical interlocking is variably influenced by the implant geometry and surface micrometer level topography, as well as the implant osteotomy site dimensions, and regulate the distribution of strain applied to the hard tissue in proximity with the implant [21,27,28]. Strain is directly related to bone-implant interfacial stress and frictional force, and is clinically expressed as insertion torque [20,25,29].…”

Section: The Interfacial Remodeling (Tight Fit) Healing Pathwaymentioning

confidence: 99%

“…the majority of implant systems available in the market) as they are placed in the osteotomy in intimate contact between the implant and bone throughout the device's threaded bulk. Such intimate interplay between device and osteotomy dimensions renders the system initial or primary stability where no biologic interplay yet exists [25,26]. This mechanical interlocking is variably influenced by the implant geometry and surface micrometer level topography, as well as the implant osteotomy site dimensions, and regulate the distribution of strain applied to the hard tissue in proximity with the implant [21,27,28].…”

Section: The Interfacial Remodeling (Tight Fit) Healing Pathwaymentioning

confidence: 99%

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Osseointegration: Hierarchical designing encompassing the macrometer, micrometer, and nanometer length scales

et al. 2015

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Section: The Interfacial Remodeling (Tight Fit) Healing Pathwaymentioning

confidence: 99%

Section: The Interfacial Remodeling (Tight Fit) Healing Pathwaymentioning

confidence: 99%

Osseointegration: Hierarchical designing encompassing the macrometer, micrometer, and nanometer length scales

et al. 2015

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“…22,23 Bu faktörlerden özel-likle kullanılan implantın makro dizaynı, primer stabilizasyonun sağlanmasında klinisyenin başarısını etkilemektedir. 24 Çalışmalarda konik ve agresif özellikli yivlere sahip implantların düşük kemik yoğunluğunda ve miktarında, silindir ve silik yivlere sahip implantlara göre yerleştirme torklarının daha yüksek olduğu belirtilmektedir. [25][26][27][28][29][30][31] Yerleştirilen implantın iyileşme süresince stabilizasyonunun korunması, osseointegrasyonun sağlanması ve yükleme sonrasında korunmasında en önemli başarı faktörü olarak görülmektedir.…”

Section: Discussionunclassified

Evaluation of survival of implants placed simultaneously with sinus floor elevation operation at different residual bone height

Bedeloğlu¹,

Gültekin²

2018

Yeditepe J Dent

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ÖZET Amaç: Dişlerin kaybedilmesi sonrası alveolar kemikte rezorpsiyon meydana gelmektedir. Posterior maksillada yetersiz kemik yüksekliği durumunda, implant yerleştirilmesi için sinüs tabanı operasyonu uzun yıllardır başarılı bir şekilde uygulanmaktadır. Bu çalışmanın amacı posterior maksillada sinüs tabanı altında kemik yüksekliğinin implant yerleştirilmesi için yetersiz olduğu durumlarda, sinüs tabanı yükseltme operasyonu ile eşzamanlı yerleştirilen implantların başarısını değer-lendirmektir. Gereç ve Yöntem: Bu retrospektif planlanan çalışmaya sistemik olarak sağlıklı ve posterior maksillada dental implant ihtiyacı olan hastalar dahil edilmiştir. Hastalar dental volumetrik tomografi kullanılarak sinüs tabanı altında mevcut kemik yük-sekliği ölçülerek ≥5 mm (Kontrol grubu) ve < 5 mm (Test grubu) olmak üzere iki gruba ayrılmıştır. Yerleştirilen implantların takip süresince sağkalım oranları değerlendirilmiştir. Bulgular: Çalışmada toplam 31 hastaya yerleştirilen 62 implant (Kontrol: 35, Test: 27) değerlendirilmiştir. Çalışmaya dahil edilen her iki grup kıyaslandığında sağkalım oranları açısın-dan istatistiksel olarak anlamlı bir fark olmadığı gözlemlenmiş-tir. Sonuçlar: Çalışmada rezidüel kemik yüksekliğinin, sinüs tabanı yükseltme operasyonu ile aynı seansta yerleştirilen dental implantların sağkalımını etkilemediği sonucuna varılmıştır.Anahtar kelimeler: Dental implant, sağkalım oranı, tek aşama sinüs tabanı yükseltme SUMMARY Aim: Resorption occurs after teeth loss in alveolar ridge. In case of insufficient bone height in posterior maxilla, sinus floor operation for implant placement has been successfully applied for many years. The purpose of this study is to assess the success of implants placed simultaneously with sinus floor elevation operation, in cases where bone height under the sinus floor in the posterior maxilla is insufficient for implant placement. Materials and Methods:In this retrospective study design, patients who were systemically healthy and required dental implant in posterior maxilla were included. Patients were divided into two groups; ≥5 mm (control group) and <5 mm (test group) by measuring the bone height under sinus floor using dental volumetric tomography. Survival rates of implants were evaluated during follow-up. Results: In this study, 62 implants placed in 31 patients (Control: 35, Test: 27) were evaluated. When the two groups included in the study were compared, it was observed that there was no statistically significant difference in survival rates. Conclusions:The study concluded that the residual bone height did not affect the survival rate of dental implants placed simultaneously with the sinus floor elevation operation. Keywords: Dental implant, survival rate, one stage sinus floor elevation ÖZGÜN ARAŞTIRMA 62 7tepeklinik GİRİŞ Modern diş hekimliğinde diş eksikliğinin rehabilitasyonunda dental implantlar en çok kullanılan yöntemlerden biridir. Dental implantların yerleştirilebilmesi için yeterli hacimde kemik dokusuna ihtiyaç vardır. Konvansiyonel tedavi protokolünde denta...

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“…In a rabbit experiment, Halldin and colleagues designed the interference fit between the support bone and implants [49] and investigated the effect of predetermined static loading on bone remodeling. They found that bone resorption did not occur although the initial bone strain exceeded its yield strain and even the bone ultimate strain.…”

Section: Discussionmentioning

confidence: 99%

A histological and biomechanical study of bone stress and bone remodeling around immediately loaded implants

Han

Hou

Zhou

et al. 2014

Sci. China Life Sci.

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Immediate loading (IL) increases the risk of marginal bone loss. The present study investigated the biomechanical response of peri-implant bone in rabbits after IL, aiming at optimizing load management. Ninety-six implants were installed bilaterally into femurs of 48 rabbits. Test implants on the left side created the maximal initial stress of 6.9 and 13.4 MPa in peri-implant bone and unloaded implants on the contralateral side were controls. Bone morphology and bone-implant interface strength were measured with histological examination and push-out testing during a 12-week observation period. Additionally, the animal data were incorporated into finite element (FE) models to calculate the bone stress distribution at different levels of osseointegration. Results showed that the stress was concentrated in the bone margin and the bone stress gradually decreased as osseointegration proceeded. A stress of about 2.0 MPa in peri-implant bone had a positive effect on new bone formation, osseointegration and bone-implant interface strength. Bone loss was observed in some specimens with stress exceeding 4.0 MPa. Data indicate that IL significantly increases bone stress during the early postoperative period, but the load-bearing capacity of peri-implant bone increases rapidly with an increase of bone-implant contact. Favorable bone responses may be continually promoted when the stress in peri-implant bone is maintained at a definite level. Accordingly, the progressive loading mode is recommended for IL implants. implant, osseointegration, bone remodeling, immediate loading, finite element analysis Citation:Han JY, Hou JX, Zhou G, Wang C, Fan YB. A histological and biomechanical study of bone stress and bone remodeling around immediately loaded implants.

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The effect of static bone strain on implant stability and bone remodeling

Cited by 66 publications

References 31 publications

Osseointegration: Hierarchical designing encompassing the macrometer, micrometer, and nanometer length scales

Osseointegration: Hierarchical designing encompassing the macrometer, micrometer, and nanometer length scales

Evaluation of survival of implants placed simultaneously with sinus floor elevation operation at different residual bone height

A histological and biomechanical study of bone stress and bone remodeling around immediately loaded implants

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