Relation between bone quality values from ultrasound transmission velocity and implant stability parameters - an ex vivo study

Kumar, Vijaya; Sagheb, Keyvan; Klein, Martine; Al‐Nawas, Bilal; Kann, Peter Herbert; Kämmerer, Peer W.

doi:10.1111/j.1600-0501.2011.02250.x

Cited by 22 publications

(20 citation statements)

References 33 publications

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“…This shows the influence that the type of material into which an implant is placed may have on results, being, in this study, more prevalent than the influence of the presence of surface treatment and corroborating the systematic review by Marquezan et al 26 , who observed positive correlation between primary stability -assessed by several methods, including resonance frequency -and bone mineral density. This also corroborates the study by Kumar et al 11 who found that, in ex vivo bone samples with lower values of ultrasound transmission speed, a method used to assess bone quality, lower primary stability values were observed.…”

Section: Discussionsupporting

confidence: 81%

“…Bone structure is a parameter for primary stability and implant success 10 . Many studies claim that implants inserted in the mandible have higher success rates than those inserted in the maxilla [10][11] and high implant failure rates are observed when there is poor bone mineralization or limited bone resistance in terms of perceived tactile sensitivity during drilling [3][4] . As mechanical behavior is vital for obtaining osseointegration, several classifications have been suggested for bone quality 5 , however they are neither very objective nor reproducible 4 .…”

Section: Discussionmentioning

confidence: 99%

“…Resonance frequency is compared to bone density 11,14 and to other methods used to analyze primary stability, with the aim of observing proper correlation 6,14,24 . Studies show diminished primary stability in implants placed in low density bone tissue 25 and therefore strong correlation between bone density and ISQ values [4][5]13,[25][26] .…”

Section: Discussionmentioning

confidence: 99%

“…To achieve osseointegration, it is crucial that during surgery the implant is stabilized in the receiving bone site 6 , attaining primary stability 2,[6][7][8][9][10] . This initial fixation depends on surgical technique, implant design and on patient-related factors such as bone density 1,[10][11] .…”

Section: Introductionmentioning

confidence: 99%

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Surface treatment of implants: primary stability

Oliscovicz

Silva

Lepri

et al. 2014

RGO, Rev. Gaúch. Odontol.

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Objective The aim of this study was to analyze the primary stability of dental implants with and without surface treatment, by means of resonance frequency, using different materials as substitutes for human bone substrates for insertion. Methods Sixteen external hexagon, cylindrical RESUMO ObjetivoAnalisar a estabilidade primária de implantes odontológicos com tratamento e sem tratamento de superfície, por meio da frequência de ressonância, utilizando diferentes materiais como substratos substitutos do osso humano para sua inserção. MétodosForam utilizados 16 implantes de titânio Conexão ® , cilíndricos, hexágono externo, com 11,5 mm de comprimento e 3,75 mm de largura, sendo: 8 Master Porous, com tratamento de superfície; e 8 Master Screw, usinados. A instalação de implantes foi realizada nos seguintes substratos: osso de costela suína, madeira, osso artificial de poliuretana da marca Nacional ® (40, 20 e 15 PCF) e da marca Synbone ® . Foi avaliada a estabilidade primária através da frequência de ressonância utilizando o aparelho Osstell™ Mentor. Os dados obtidos foram submetidos a tratamento estatístico ANOVA e Teste de Tukey, com nível de significância a 5%. ResultadosFoi constatado que, apesar de Master Porous apresentar maior valor que Master Screw em todos os substratos, estes não apresentaram diferença estatística entre si (p>0,05), com exceção da poliuretana Nacional ® de 20 PCF. Quando inseridos no substrato madeira e na poliuretana Nacional ® 40 PCF, Master Porous e Master Screw tiveram maiores valores. Master Porous, quando inserido no osso suíno também foram iguais estatisticamente a estas interações. ConclusãoApesar de inovações nas características das superfícies de implantes serem desenvolvidas constantemente para contribuir no desempenho de implantes osseointegrados, e nosso estudo encontrar que não houve influência do tratamento de superfície na estabilidade primária aferida por frequência de ressonância; ainda há pouco conhecimento científico sobre esses efeitos.Termos de indexação: Densidade óssea. Implantação dentária. Frequencia.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Surface treatment of implants: primary stability

Oliscovicz

Silva

Lepri

et al. 2014

RGO, Rev. Gaúch. Odontol.

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“…Although the volume and density of bone in the free fibula flap are ideal for implant rehabilitation, the quality of the peri-implant soft tissues is often not optimal [8]. Previous studies have shown that the quality and quantity of the fibula flap used for reconstruction of the mandible is favourable for the placement of osseointegrated dental implants [9]. However, the quality of the overlying soft tissues that form the denture bearing area of prospective dental rehabilitation is often not optimal [8].…”

Section: Introductionmentioning

confidence: 95%

Sub-Periosteal Dissection with Denture-Guided Epithelial Regeneration: A Novel Method for Peri-Implant Soft Tissue Management in Reconstructed Mandibles

Kumar

Jacob

Kuriakose

2015

J. Maxillofac. Oral Surg.

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Background In patients with reconstructed mandibles using free fibula flaps, management of soft tissues around implants supporting dental rehabilitation, is often a clinical problem. Aim The aim of this paper is to describe a new technique, namely ''Sub-periosteal dissection and denture-guided epithelial regeneration (SD-DGER)'', as a method of periimplant soft tissue management in these patients. Materials and methodsThe technique consists of performing a subperiosteal dissection with creation of buccal and lingual flaps. These flaps form the buccal and lingual vestibule. Implants are placed and an interim denture is immediately loaded onto the implants to guide the regenerated epithelium. A keratinized mucosal layer is formed on the bare fibula bone in six months time. Results This technique was successful in producing fixed keratinized epithelial tissue around implants in patients with mandibles reconstructed using the free fibula flap in patients who did not undergo radiotherapy. ConclusionThe sub-periosteal dissection with denture guided epithelial regeneration is a predictable form of periimplant soft tissue management in selected patients with reconstructed jaws.

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Preoperative evaluation of bone quality for dental implantation using an ultrasound axial transmission device in an ex vivo model

Okada

Kawano

Oue

et al. 2017

Clinical & Exp Dental Res

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This study investigated the clinical utility of an ultrasound axial transmission device in preoperative evaluation of bone quality for dental implantation, by clarifying the relationship between cortical bone speed of sound (cSOS), insertion torque values (ITV), and implant stability quotient (ISQ) in porcine femur bone. Eleven fresh porcine femurs, without soft tissue, were prepared. The cSOS of these bones were measured using the axial transmission device. Bone mineral density (BMD) and porosity (Po) were measured in cortical bone samples obtained from the region of ultrasound measurements by X‐ray microcomputed tomography. Thirty‐three implants were inserted into these samples (three implants per bone sample), and ITV and ISQ were measured for all implants. Then, cortical bone thickness (CbTh) of the area for implantation was measured for all implants using a micrometer. The mean cSOS was 3962 m/s; mean BMD and Po were 0.822 g/cm2 and 0.185%, respectively. cSOS and BMD values were positively correlated, and cSOS values and Po values were negatively correlated. Mean ITV, ISQ, and CbTh were 37.95 Ncm, 71.172, and 2.869 mm, respectively. There was a positive correlation between cSOS values and ISQ values. The cSOS of each bone did not correlate with ITV for all of the bone samples. However, when the CbTh ranges from 3.0 to 3.5 mm, ITV are correlated with cSOS. These findings suggest that cSOS, which reflects the cortical bone quality, may be clinical utility as a preoperative diagnosis of the implant.

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Relation between bone quality values from ultrasound transmission velocity and implant stability parameters - an ex vivo study

Cited by 22 publications

References 33 publications

Surface treatment of implants: primary stability

Surface treatment of implants: primary stability

Sub-Periosteal Dissection with Denture-Guided Epithelial Regeneration: A Novel Method for Peri-Implant Soft Tissue Management in Reconstructed Mandibles

Preoperative evaluation of bone quality for dental implantation using an ultrasound axial transmission device in an ex vivo model

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