Insertion and Loading Characteristics of Three Different Bone-Level Implants

Steiner, Constanze; Karl, Matthias; Grobecker‐Karl, Tanja

doi:10.11607/jomi.7770

Cited by 5 publications

(9 citation statements)

References 6 publications

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“…Steiner et al [ 9 ] compared the IT features of three implant types; for the V3 implant, they described a steady increase of the IT followed by a relative decrease when the most coronal part of the neck passed the cortical layer. Indeed, the inexperienced surgeons that have been placing the C1 [ 2 ] and the V3 implants noticed a difference in the torque conduct close to the final seating [ 2 ].…”

Section: Discussionmentioning

confidence: 99%

“…Micro- and macro-features of implant design include a large range of variables; among them are the geometry and surface of the implant body and its neck [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 ]. Several papers have documented the implant neck as a critical factor involved in preservation of the marginal peri-implant bone [ 1 , 3 , 4 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

“…One was to reduce the stresses and strains that are exerted at the cortical bone during implant seating [ 12 ]; the second was to offer added room at the implant neck for thickening the buccal cortical bone lamella [ 4 , 5 , 6 ] under the motto less titanium, more bone, and third to speed-up the neoformation of the crestal bone [ 13 ]. When the implant is seated, the triangular neck design provides a space between the implant collar and the surrounding bone to be filled with blood; it eventually forms a blood clot, which later turns into bone [ 2 , 3 , 4 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Covariates Relating to Implant Failure and Marginal Bone Loss of a Novel Triangular Neck-Implant Placed by Post-Graduate Students: A 1-Year Prospective Cohort Study

et al. 2022

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(1) Background: Most of the clinical literature dealing with dental implants has been issued by experienced teams working either in university settings or in private practice. The purpose of this study was to identify contributing covariates to implant failure and marginal bone loss (MBL) at the 1-year follow-up of a novel triangular-neck implant design when placed by inexperienced post-graduate students. (2) Methods: A prospective cohort study was conducted on study participants eligible for implant placement at the UIC (International University of Catalonia), Barcelona, Spain. Implant failure rate and contributors to implant failure and MBL were investigated among 24 implant and patient variables. (3) Results: One hundred and twenty implants (V3, MIS) were placed and rehabilitated by the students. The mean insertion torque was 37.1 Ncm. Survival and success rates were 97.5% and 96.7%, respectively. Implants placed in patients with smoking habits displayed a tendency of higher failure risk (OR = 5.31, p = 0.17) when compared to non-smokers. The mean (SD) MBL was 0.51 (0.44) mm. Gender significantly affected the MBL (p = 0.020). Bleeding on probing (BoP) on the buccal sites proved to be a good predictor of proximal MBL (p = 0.030). (4) Conclusions: The survival and success rates of the V3 triangular-neck implant placed by inexperienced post-graduate students at the 1-year follow-up were high and similar to the ones published in the literature by experienced teams on other implants.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Covariates Relating to Implant Failure and Marginal Bone Loss of a Novel Triangular Neck-Implant Placed by Post-Graduate Students: A 1-Year Prospective Cohort Study

et al. 2022

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“…The placement of dental implants at the bone level requires high frictional forces at the neck of the dental implant with the cortical bone, which gives a state of compression that allows the mechanical fixation of the implant [ 5 , 18 ]. These frictional forces between the cortical bone and the rough surface of the dental implant cause particles to be released during placement [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…The relationship between peri-implant diseases and bacterial biofilms has been demonstrated in different research [ 15 , 16 , 17 , 18 , 19 ]. According to the classification of periodontal and peri-implant diseases and factors, there are several conditions that require further investigations to show their effect on the development of peri-implant diseases [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

The Characterization of Titanium Particles Released from Bone-Level Titanium Dental Implants: Effect of the Size of Particles on the Ion Release and Cytotoxicity Behaviour

et al. 2022

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Many studies are being carried out on the particles released during the implantoplasty process in the machining of dental implants to remove bacterial biofilms. However, there are no studies on the release of particles produced by the insertion of bone-level dental implants due to the high compressive frictional loads between the rough titanium implant and the bone tissue. This paper aims to characterize the released particles and determine the release of titanium ions into the physiological environment and their cytocompatibility. For this purpose, 90 dental implants with a neck diameter of 4 mm and a torque of 22 Ncm were placed in 7 fresh cow ribs. The placement was carried out according to the established protocols. The implants had a roughness Ra of 1.92 μm. The arrangement of the particles in the bone tissue was studied by micro-CT, and no particle clusters were observed. The different granulometries of 5, 15, and 30 μm were obtained; the specific surface area was determined by laser diffraction; the topography was determined by scanning electron microcopy; and the particles were chemically analysed by X-ray energy microanalysis. The residual stresses of the particles were obtained by X-ray diffraction using the Bragg-Bentano configuration. The release of titanium ions to the physiological medium was performed using ICP-MS at 1, 3, 7, 14, and 21 days. The cytocompatibility of the particles with HFF-1 fibroblast and SAOS-2 osteoblast cultures was characterized. The results showed that the lowest specific surface area (0.2109 m2/g) corresponds to the particles larger than 30 μm being higher than 0.4969 and 0.4802 m2/g of those that are 5 and 15 μm, respectively, observing in all cases that the particles have irregular morphologies without contamination of the drills used in the surgery. The highest residual stresses were found for the small particles, −395 MPa for the 5 μm particles, and −369 for the 15 μm particles, and the lowest residual stresses were found for the 30 μm particles with values of −267 MPa. In all cases, the residual stresses were compressive. The lowest ion release was for the 30 μm samples, as they have the lowest specific surface area. Cytocompatibility studies showed that the particles are cytocompatible, but it is the smallest ones that are lower and very close to the 70% survival limit in both fibroblasts and osteoblasts.

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Wedge Shaped vs Round Implants: Bone Strain During the Insertion Process

Steiner

Karl

Grobecker‐Karl

2022

Journal of Oral Implantology

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A novel implant system resembling the shape of a wedge and employing piezosurgery for implant bed preparation has been introduced with the aim of solving the problem of horizontal bone deficiency. This in vitro study compared emerging bone strain during insertion of a conventionally round implant vs. the wedge implant . Adhering to the manufacturers’ protocols, implant surgery was performed in polyurethane foam blocks equipped with strain gauges attached to the buccal and occlusal surfaces. Five implants per group were placed while strain development during insertion was recorded. Primary implant stability was determined using resonance frequency analysis (RFA). Statistical analysis was based on Welch two sample tests (α=0.05). In general, greater strain development was found on the buccal aspect of bone as compared to the occlusal aspect with an overall range between -724µm/m and 9,132µm/m. A stepwise increase in strain development was seen in the wedge implants while in the round implants a continuous increase in strain development was recorded. Absolute strain development on the buccal aspect of bone was significantly greater in wedge implants (p=0.0137) while on the occlusal aspect significantly lower strain development was seen for wedge implants (p=0.0012). Primary stability of wedge implants was significantly lower as compared to round implants (p=0.0005). Wedge implants differ from round implants with respect to the insertion process characterized by a stepwise increase in bone deformation. High strain development in buccal bone may constitute a risk factor for bone resorption and should be avoided by reducing the degree of underpreparation of the implant site.

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Insertion and Loading Characteristics of Three Different Bone-Level Implants

Cited by 5 publications

References 6 publications

Covariates Relating to Implant Failure and Marginal Bone Loss of a Novel Triangular Neck-Implant Placed by Post-Graduate Students: A 1-Year Prospective Cohort Study

Covariates Relating to Implant Failure and Marginal Bone Loss of a Novel Triangular Neck-Implant Placed by Post-Graduate Students: A 1-Year Prospective Cohort Study

The Characterization of Titanium Particles Released from Bone-Level Titanium Dental Implants: Effect of the Size of Particles on the Ion Release and Cytotoxicity Behaviour

Wedge Shaped vs Round Implants: Bone Strain During the Insertion Process

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