Stress distribution of implant retained obturators using different types of attachments: A three dimensional finite element analysis

Amer, M.M.; Rashad, Hoda A.; Abdallah, S.

doi:10.1016/j.tdj.2015.09.001

Cited by 9 publications

(8 citation statements)

References 37 publications

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“…9 In the present study, data were obtained from the abutment, dental implant, and bone tissue, while Takashi et al provided data only from dental implants. Amer et al 28 compared ball and magnet attachments in dental implant-retained obturators and reported higher stresses in magnet attachments in a way to support findings of the present study.…”

Section: A B C D E F G Hsupporting

confidence: 89%

Effects of overdenture attachment systems with different working principles on stress transmission: A three-dimensional finite element study

Türker

Buyukkaplan

2020

J Adv Prosthodont

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Section: A B C D E F G Hsupporting

confidence: 89%

Effects of overdenture attachment systems with different working principles on stress transmission: A three-dimensional finite element study

Türker

Buyukkaplan

2020

J Adv Prosthodont

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“…Milled bar attachment significantly increases prosthesis retention [ 5 ]. Amer et al [ 23 ] evaluated the stress distribution in implant-supported obturators with different attachment designs. They concluded that the best stress distribution was observed in ball and socket and magnet attachments, followed by bar and clip attachments, respectively.…”

Section: Discussionmentioning

confidence: 99%

Severe Maxillectomy Defect Rehabilitation with an Implant-Retained Obturator Prosthesis: A Case Report

Niakan,

Asgari,

Rafeie

et al. 2024

fid

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Conventional obturator prostheses might cause dissatisfaction in patients with hard or soft palate defects due to inadequate retention and function during speech, mastication, and swallowing. Thus, surgical reconstruction and implant-supported obturators are considered as alternative treatments for these patients. This case-report study describes the prosthetic reconstruction of an 88-year-old patient suffering from a hard palate defect after surgical resection of verrucous carcinoma in the left side of the hard palate. Fifteen months after radiotherapy, two implants were placed in the right side of the remaining ridge, in the second and third molar region. After the implant healing period, the implant-supported obturator prosthesis was fabricated. The patient was satisfied with the esthetics and function of the obturator at the 12-month recall visit and radiographs showed normal healing and no bone loss around the implants.

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“…The implant was established using UGNX10.0 software and was assembled with bone tissue in the model using Boolean subtraction 18 . The interface between the implant and the bone tissue was defined as "tie-constraint "to simulate bone formation for osseointegration 19,20 . Moreover, it was also very difficult to reconstruct trabecular microstructure.…”

Section: Discussionmentioning

confidence: 99%

“…The material parameters used for cortical bone and cancellous bone are presented in Supplementary Table 1. The interface between bone and implant was defined as "tie-constraint" to simulate good osseointegration 19,20 (Fig. 3C).…”

Section: Numerical Simulation Model Of the Implant And Surrounding Bomentioning

confidence: 99%

Simulation analysis of impact damage to the bone tissue surrounding a dental implant

Diao¹,

Li²,

Xin³

et al. 2020

Sci Rep

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Dental implant may suffer transient external impacts. To simulate the effect of impact forces on bone damage is very important for evaluation of damage and guiding treatment in clinics. In this study, an animal model was established by inserting an implant into the femoral condyle of New Zealand rabbit. Implant with good osseointegration was loaded with impact force. A three-dimensional finite element model was established based on the data of the animal model. Damage process to bone tissue was simulated with Abaqus 6.13 software combining dynamic mechanical properties of the femur. The characteristics of bone damage were analyzed by comparing the results of animal testing with numerical simulation data. After impact, cortical bone around the implant and trabecular at the bottom of the implant were prone to damage. The degree of damage correlated with the direction of loading and the magnitude of the impact. Lateral loading was most likely performed to damage cancellous bone. The stress wave formed by the impact force can damage the implant-bone interface and periimplant trabeculae. The data from numerical simulations were consistent with data from animal experiments, highlighting the importance of a thorough examination and evaluation based on the patient's medical history.

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Stress distribution of implant retained obturators using different types of attachments: A three dimensional finite element analysis

Cited by 9 publications

References 37 publications

Effects of overdenture attachment systems with different working principles on stress transmission: A three-dimensional finite element study

Effects of overdenture attachment systems with different working principles on stress transmission: A three-dimensional finite element study

Severe Maxillectomy Defect Rehabilitation with an Implant-Retained Obturator Prosthesis: A Case Report

Simulation analysis of impact damage to the bone tissue surrounding a dental implant

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