Biomechanical simulation of various surface roughnesses and geometric designs on an immediately loaded dental implant

Huang, Heng‐Li; Hsu, Jui‐Ting; Fuh, Lih‐Jyh; Lin, Dao‐Hong; Chen, Michael Y.C.

doi:10.1016/j.compbiomed.2010.03.008

Cited by 42 publications

(40 citation statements)

References 19 publications

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“…23 Moreover, the tapered apex decreases the surface area available to dissipate the stress, explaining the high stress and strain in the apical region and highlighting the importance of macrodesign on stress distribution around immediately loaded implants. 17 This may not be critical because the resistance to fatigue failure in the cortical bone is greater during compression than during tension. 24 Deposition and resorption of the bone matrix can be regulated by the mechanical environment; 25 therefore, possible remodeling of the cortical bone around the implant apex should be assessed in future in vivo studies or clinical trials.…”

Section: Discussionmentioning

confidence: 99%

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Biomechanical evaluation of subcrestal dental implants with different bone anchorages

et al. 2014

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This study evaluated the biomechanical influence of apical bone anchorage on a single subcrestal dental implant using three-dimensional finite element analysis (FEA). Four different bone anchorage designs were simulated on a posterior maxillary segment using one implant with platform switching and internal Morse taper connection as follows: 2 mm subcrestal placement with (SW) or without (SO) the implant apex engaged into the cortical bone or position at bone level with anchorage only in the crestal cortical (BO) bone or with bicortical fixation (BW). Each implant received a premolar crown, and all models were loaded with 200 N to simulate centric and eccentric occlusion. The peak tensile and compressive stress and strain were calculated at the crestal cortical, trabecular, and apical cortical bone. The vertical and horizontal implant displacements were measured at the platform level. FEA indicated that subcrestal placement (SW and SO) created lower stress and strain in the crestal cortical bone compared with crestal placement (BO and BW models). The SW model exhibited lesser vertical and horizontal implant micromovement compared with the SO and BO models under eccentric loading; however, stress and strain were higher in the apical cortical bone. The BW model exhibited the lowest implant displacement. These results indicate that subcrestal placement decreases the stress in the crestal cortical bone of dental implants, regardless of apical anchorage; however, apical cortical anchorage can be effective in limiting implant displacement. Further studies are required to evaluate the effects of possible remodeling around the apex on the success of subcrestal implants.

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Section: Discussionmentioning

confidence: 99%

“…A frictional contact coefficient between bone and implant surfaces of 0.3 was used, while all other contacts were considered perfectly bonded. 17 The models were constrained in all directions at nodes on the mesial and distal borders.…”

mentioning

confidence: 99%

Biomechanical evaluation of subcrestal dental implants with different bone anchorages

et al. 2014

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“…Young's Modulus and Poisson's Ratio of cortical and cancellous bone are determined in respect to previous FEA studies [3][4][5].…”

Section: Materials Propertiesmentioning

confidence: 99%

Patient specific root-analogue dental implants – additive manufacturing and finite element analysis

Gattinger

Bullemer

Harrysson

2016

Current Directions in Biomedical Engineering

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Aim of this study was to prove the possibility of manufacturing patient specific root analogue twopart (implant and abutment) implants by direct metal laser sintering. The two-part implant design enables covered healing of the implant. Therefore, CT-scans of three patients are used for reverse engineering of the implants, abutments and crowns. Patient specific implants are manufactured and measured concerning dimensional accuracy and surface roughness. Impacts of occlusal forces are simulated via FEA and compared to those of standard implants.

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“…There are numerous works focused on implant osseointegration performance to prevent implant failures. The following reports investigated effective factors for osseointegration performance by various authors: implant surface modification [4][5][6][7][8], implant materials [9,10], implant geometry [11,13], dental drills [12,14] and surgical technique [15,16]. All of these factors influence loosening of dental implant-bone interface, consequently osseointegration performance.…”

Section: Introductionmentioning

confidence: 99%

Measurement of temperature change during the implant site preparation to determine influence of tool characteristics

2016

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Biomechanical simulation of various surface roughnesses and geometric designs on an immediately loaded dental implant

Cited by 42 publications

References 19 publications

Biomechanical evaluation of subcrestal dental implants with different bone anchorages

Biomechanical evaluation of subcrestal dental implants with different bone anchorages

Patient specific root-analogue dental implants – additive manufacturing and finite element analysis

Measurement of temperature change during the implant site preparation to determine influence of tool characteristics

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