Comparison of Stress Distribution and Deformation of Four Prosthetic Materials in Full-mouth Rehabilitation with Implants: A Three-dimensional Finite Element Study

Chand, Yemineni Bhavan; Mahendra, Jaideep; Jigeesh, Nasina; Mahendra, Little; Shivasubramanian, Lakshmi; Perika, Shareen Babu

doi:10.5005/jp-journals-10024-2959

Cited by 9 publications

(3 citation statements)

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“…Earlier studies have suggested that the type of surgical preparation and stress acting on bone during implant placement is directly proportional to bone loss [8][9][10]. According to Wolff's theory, the bone's response to resorption is directly proportional to the stress generated within the bone [11,12]. The literature reveals that the surgical preparation technique influences the forces during implant insertion and impacts the biomechanical, clinical, and biological effects seen after implant insertion [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Stress Distribution during Insertion of Tapered Dental Implants in Various Osteotomy Techniques: Three-Dimensional Finite Element Study

Mahendra

Chand²,

Mahendra

et al. 2021

Materials

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Conventional osteotomy techniques can, in some cases, induce higher stress on bone during implant insertion as a result of higher torque. The aim of the present study was to evaluate and compare the stress exerted on the underlying osseous tissues during the insertion of a tapered implant using different osteotomy techniques through a dynamic finite element analysis which has been widely applied to study biomedical problems through computer-aided software. In three different types of osteotomy techniques, namely conventional (B1), bone tap (B2), and countersink (B3), five models and implants designed per technique were prepared, implant insertion was simulated, and stress exerted by the implant during each was evaluated. Comparison of stress scores on the cortical and cancellous bone at different time points and time intervals from initiation of insertion to the final placement of the implant was made. There was a highly statistically significant difference between B1 and B2 (p = 0.0001) and B2 and B3 (p = 0.0001) groups. In contrast, there was no statistically significant difference in the stress scores between B1 and B3 (p = 0.3080) groups at all time points of implant placement. Overall, a highly significant difference was observed between the stresses exerted in each technique. Within the limitations of our study, bone tap significantly exerted lesser stresses on the entire bone than conventional and countersink type of osteotomy procedures. Considering the stress distribution at the crestal region, the countersink showed lower values in comparison to others.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Stress Distribution during Insertion of Tapered Dental Implants in Various Osteotomy Techniques: Three-Dimensional Finite Element Study

Mahendra

Chand²,

Mahendra

et al. 2021

Materials

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“…According to the results, the null hypothesis was rejected. The comparison conducted between Trinia and BioHPP as both are polymer based materials that reduce impact force on implants more than dental ceramics [36]. Different reinforcement types for the two materials make them have different mechanical properties as TRINIA is glass fiber reinforced polymer while BioHPP is ceramic particles reinforced polymer.…”

Section: Discussionmentioning

confidence: 99%

“…During function, dental implants are subjected to loads with different magnitudes and directions. Considering the load direction, Eric et al [35] and Chang et al [36] reported that oblique loads caused higher stress concentration than axial loads in the implant surrounding bone. This is harmonious with the current results showing that the microstrain values recorded during oblique load application were significantly higher than those recorded during axial load application for both groups (TRINIA and BioHPP) at both buccal and palatal areas.…”

Section: Discussionmentioning

confidence: 99%

Strain Developed Around Dental Implants Loaded With Two Cad-Cam Reinforced Polymeric Superstructure Materials: An in-Vitro Comparative Study

Kandeel,

Abdelhamed,

Neena

2023

Alexandria Dental Journal

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INTRODUCTION:Evaluation of strain developed around implants is playing an important role in the success of osseointegration of implants. Among the factors that affect the strain development, we can include the superstructure material. OBJECTIVE: The present study used strain gauge to perform an in-vitro evaluation of strain development around dental implants after using two different CAD-CAM reinforced polymers as superstructure materials. MTERIALS AND METHODS: Sixteen polyurethane test blocks were divided into two groups according to the superstructure material, biocompatible high-performance polymer (BioHPP) and reinforced nano-hybrid polymer with multi-layered glass fiber (TRINIA). Superstructures were fabricated with the same design using computerized aiding design then milling from CAD-CAM blocks. Strain gauges measured microstrain values. A universal testing machine was used to apply static load from 0 to 100 N in axial and 45-degree oblique directions on the superstructure. Then, the microstrain values were measured using a strain meter. Comparisons between the two groups were done using t-test, while comparisons between the buccal and palatal areas around the implant were done using paired t-test. Three-way ANOVA was performed to assess factors affecting strain development around implants (P=.05). RESULTS:The microstrain developed around TRINIA was significantly lower than BioHPP (p <.001).The oblique load leads to higher strain development compared to the axial load. Regarding the oblique load, the strain values were higher in buccal area than the palatal one. CONCLUSION: Strain development around dental implants is influenced by the superstructure material. The oblique occlusal load caused higher microstrain than the axial occlusal load.

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Effect of Process Parameters on the Quality of Additively Manufactured PETG-Silk Composite

Vijayasankar

Pati²

2022

Appl Compos Mater

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Comparison of Stress Distribution and Deformation of Four Prosthetic Materials in Full-mouth Rehabilitation with Implants: A Three-dimensional Finite Element Study

Cited by 9 publications

References 0 publications

Evaluation of Stress Distribution during Insertion of Tapered Dental Implants in Various Osteotomy Techniques: Three-Dimensional Finite Element Study

Evaluation of Stress Distribution during Insertion of Tapered Dental Implants in Various Osteotomy Techniques: Three-Dimensional Finite Element Study

Strain Developed Around Dental Implants Loaded With Two Cad-Cam Reinforced Polymeric Superstructure Materials: An in-Vitro Comparative Study

Effect of Process Parameters on the Quality of Additively Manufactured PETG-Silk Composite

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