Biomechanical Behavior of Implants with a Sloped Marginal Configuration

Karasan, Duygu; Güncü, Mustafa Barış; Ersu, Bahadır; Canay, Şenay

doi:10.11607/ijp.5882

Cited by 2 publications

(6 citation statements)

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“…The number of nodes and elements used in FEA studies is directly related to the sensitivity of those studies. In the present case, the number of nodes and elements was sufficient to maximize sensitivity, in agreement with previous studies [22,24,30,31]. The functional and parafunctional loads produced by mastication are transferred to implants and surrounding tissues through the prosthetic components in implantsupported restorations.…”

Section: Discussionsupporting

confidence: 90%

“…The maximum loading resistance value of coldworked grade IV titanium implants has been reported as 680 MPa [22,27,39]. Herein, the von Mises stress values of the grade IV titanium implants in both groups were within acceptable limits, with better results for the sloped implants than for the conventional implants.…”

Section: Discussionmentioning

confidence: 64%

“…The horizontal dimensions of the alveolar crest generally decrease, especially in the first 3 months. The presence of defects or insufficient bone volume in the area where the implant treatment will be performed may require bone trimming or augmentation of the ridge with different graft materials to achieve adequate bone morphology for the implant operation [22,[23][24][25]. Implants with a specially designed neck area can be used in crests that have different bone levels, and they can show similar biomechanical behaviors to those of conventional flat neck implants [12,15,22,25].…”

Section: Discussionmentioning

confidence: 99%

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Does a sloped neck implant design facilitate All-on-4 surgeries? A three-dimensional finite element analysis

Toprak

2023

J Med Dent Invest

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Aim: In the treatment of edentulous resorbed mandibles using All-on-4 concept, the distal part of posteriorly tilted implants with a conventional flat neck design is usually embedded in the bone, which may lead to improper installation or positioning of angled multiunit abutments. Bone trimming from the distal area, where the implant neck is embedded in the bone, is typically necessary to avoid this complication. This study aimed to evaluate the biomechanical behavior of a sloped marginal neck configuration of implant posteriorly tilted at 30° in edentulous mandibles using a three-dimensional finite element analysis (FEA). Methodology: The sloped neck implants were posteriorly tilted at 30° without any further operation in the edentulous mandibular model designed using the FEA. The tilted conventional flat neck implants were placed at the same length, diameter, and angle, and 2 mm2 of bone was trimmed from the distal area. Similar multiunit abutments, two conventional flat neck implants axially placed on the anterior side, titanium frameworks, and acrylic resin prosthetic dentures were created for both models. The biomechanical behaviors of the models were evaluated by applying a foodstuff force of 50 N to the incisors, 100 N to the premolars, and 150 N to the molar cantilever. Results: The von Mises stress value of the sloped neck implants (158.489 MPa) was lower than that of the conventional flat neck implants (177.208 MPa). Both the maximum and minimum principal stress values in the surrounding cortical and cancellous bones were within the acceptable physiological limits. Conclusion: Sloped neck implants can be placed easily and are less invasive than conventional flat neck implants; thus, they can be a treatment alternative that can facilitate the All-on-4 concept. How to cite this article: Toprak ME. Does a sloped neck implant design facilitate All-on-4 surgeries? A three-dimensional finite element analysis. J Med Dent Invest 2023;4:e230310. https://doi.org/10.5577/jomdi.e230310 Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 64%

Section: Discussionmentioning

confidence: 99%

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Does a sloped neck implant design facilitate All-on-4 surgeries? A three-dimensional finite element analysis

Toprak

2023

J Med Dent Invest

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“…Therefore, it is important to examine different and complex designs of implants and the surrounding bone using FEA. Different marginal configuration designs of the implant illustrated similar biomechanical behavior with conventional flat marginal configuration dental implant while presence of different buccal and lingual bone levels (14).…”

Section: Introductionmentioning

confidence: 84%

“…Numerous clinical studies have been carried out to evaluate the biomechanical aspects of dental implant design (1,10,14,21,22). The quality and strength of osseointegration, and the bone-implant connection are crucial to acquire the long-term success of implant treatment in edentulous jaws.…”

Section: Discussionmentioning

confidence: 99%

Sloped marginal configuration design of implants as an alternative innovation to the grafting operations: a three-dimensional finite element analysis

Toprak

2023

Journal of Health Sciences and Medicine

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Aim: Dental implant operations often require bone grafting due to bone resorption in the buccal area, which make the treatment more complicated, increase the risk of complications, and results in extra costs and prolongation of treatment. This study aimed to evaluate the biomechanical behavior of the implants with a sloped marginal configuration design in the alveolar ridge with a level difference between the buccal and lingual bone levels using three-dimensional finite element analysis (FEA) method. Material and Method: Two implant models with different marginal configuration designs were used in this study. Implants were placed in the posterior edentulous mandible models in which the buccal region had a 2 mm more resorption according to lingual region which were created by imitating natural bone resorption with FEA. Bone grafting was performed on the exposed buccal surface in the conventional flat marginal configuration implant model (Model 1). In contrast, the sloped marginal configuration implants were compatible with the difference in bone level and placed directly without any additional surgical procedures (Model 2). Than three unit fixed partial dentures were designed. The design of cortical and cancellous bones, prosthetic components, implants, abutment screws and abutments covering those in the edentulous mandible models were transferred to digital three-dimensional models that were created to mimicking the real structures. The models were fixed below and behind of the mandible with zero movement. Load transfer characteristics of both models under these essential limitations were evaluated under 200N foodstuff force. Results: The highest von Mises stress value was observed as 69.300 MPa in Model 1 and 126.870 MPa in Model 2. The maximum principal stress values were 28.236 N/mm2 and 63.449 N/mm2; the minimum principal stress values were 38.346 N/mm2 and 43.643 N/mm2 in Model 1 and Model 2, respectively. The highest von Mises stress value, maximum principal stress and minimum principal stress values were found higher in Model 2 which was created with sloped marginal configuration design of implants but all values were observed within acceptable physiological limits. Conclusion: The sloped marginal configuration design of implants can be a non-invasive and more economical treatment alternative modality compared to conventional flat marginal configuration implants with advanced surgeries during implant placement.

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Biomechanical Behavior of Implants with a Sloped Marginal Configuration

Cited by 2 publications

References 0 publications

Does a sloped neck implant design facilitate All-on-4 surgeries? A three-dimensional finite element analysis

Does a sloped neck implant design facilitate All-on-4 surgeries? A three-dimensional finite element analysis

Sloped marginal configuration design of implants as an alternative innovation to the grafting operations: a three-dimensional finite element analysis

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