Biomechanical behavior of mandibular overdenture retained by two standard implants or 2 mini implants: A 3-dimensional finite element analysis

Patil, Pravinkumar G.; Seow, Liang Lin; Uddanwadikar, Rashmi; Ukey, Piyush D.

doi:10.1016/j.prosdent.2020.09.015

Cited by 13 publications

(18 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In both models, a higher significant difference was found in the loaded side compared to the unloaded side in all measured sides of the implants as it is well known that the implants which are in close proximity to the loading point show higher stresses than other implants farther from it (28) .…”

Section: Discussionmentioning

confidence: 81%

See 1 more Smart Citation

Tilted versus Short Implants Supporting Mandibular Fixed Detachable Prosthesis (In vitro study)

Kothayer

2021

ADJ-for Girls

View full text Add to dashboard Cite

Purpose: This study aimed to evaluate strain induced in implants supporting fixed detachable prosthesis with different implant protocols using strain gauge analysis. Material and methods: This stress analysis study used two 3D models simulating a completely edentulous lower arch to support and retain fixed detachable prostheses.In the first model four implant beds were considered; two anterior implants oriented axially and two posterior implants placed at the premolar region tilted 30 degrees. In the second model implant beds were designed with two anterior implants oriented axially and two short posterior implants 8 mm length placed in the first molar region oriented axially. Standardized static load was applied unilaterally by using a loading device (universal-testing machine). Strain gauge was used to measure strains induced in each implant. Results: Regarding the loaded side: Strain induced in the anterior implant and in the lingual and distal aspect of the posterior implant in the first model has shown higher strains compared to the second model. This difference was statistically insignificant in the anterior implant and in the lingual aspect of the posterior implant, while strains induced in the distal aspect of the posterior implant was statistically significant higher in the first model compared to the second model. Conclusion: With the limitation of this in vitro study, it can be concluded that short implants induce less stresses distally than tilted implants.

show abstract

Section: Discussionmentioning

confidence: 81%

“…The result of another study has shown that implant diameter was more important for improved stress distribution than implant length. This may explain the lower strain found in the short implants compared to the tilted ones (28,31) .…”

Section: Discussionmentioning

confidence: 98%

Tilted versus Short Implants Supporting Mandibular Fixed Detachable Prosthesis (In vitro study)

Kothayer

2021

ADJ-for Girls

View full text Add to dashboard Cite

show abstract

“…The material properties, including the Young modulus and Poisson ratio, were allocated for the individual components (Table 1). 10 A unilateral (Fig. 1D) and bilateral (Fig.…”

Section: Discussionmentioning

confidence: 93%

Stress and strain patterns of 2-implant mandibular overdentures with different positions and angulations of implants: A 3D finite element analysis study

Patil

Seow

Uddanwadikar

et al. 2023

The Journal of Prosthetic Dentistry

Self Cite

View full text Add to dashboard Cite

“…MIs were especially susceptible to the stress due to the reduced contact area. 39 For this reason, the magnet may be the most appropriate attachment system for the purpose of reducing the stress generated in the peri-implant bone 37 and would match the MI exceedingly well as attachments for overdentures, especially when MBR has occurred.…”

Section: Discussionmentioning

confidence: 99%

Influence of marginal bone resorption on two mini implant-retained mandibular overdenture: An in vitro study

et al. 2021

View full text Add to dashboard Cite

PURPOSE To investigate the biomechanical effect of marginal bone resorption (MBR) on the mandibular mini implant (MI)-retained overdenture (MI-OD) on the edentulous model. MATERIALS AND METHODS The experimental mandibular edentulous model was modified from a commercial model with 2 mm thick artificial soft tissue under denture base. Two MIs (Φ2.6 mm × 10 mm) were bilaterally placed between the lateral incisor and the canine area and attached with magnetic attachments. Three groups were set up as follows: 1) alveolar bone around the MI without MBR (normal group), 2) with MBR to 1/2 the length of the implant (resorption group), and 3) complete denture (CD) without MI (CD group). Strain around the MI, pressure near the first molar area, and displacement of denture were simultaneously measured, loading up to 50 N under bilateral/unilateral loading. Statistical analysis was performed using independent-samples t test and one-way ANOVA (α=.05). RESULTS The strain around the MI with MBR was approximately 1.5 times higher than that without MBR. The pressure in CD was higher than in MI-ODs ( P <.05), while there was no statistical difference between the normal and resorption group ( P >.05). Similarly, the CD demonstrated a greater displacement of the denture base than did the MI-ODs during bilateral and unilateral loadings ( P <.05). CONCLUSION The strain around the MI with MBR was approximately 1.5 times higher than that without MBR. The pressure on posterior alveolar ridge and denture displacement of MI-ODs significantly decreased compared to CDs, even when MBR occurs. Bilateral balanced occlusion was recommended for MI-ODs, especially when MBR occurred.

show abstract

Biomechanical behavior of mandibular overdenture retained by two standard implants or 2 mini implants: A 3-dimensional finite element analysis

Cited by 13 publications

References 10 publications

Tilted versus Short Implants Supporting Mandibular Fixed Detachable Prosthesis (In vitro study)

Tilted versus Short Implants Supporting Mandibular Fixed Detachable Prosthesis (In vitro study)

Stress and strain patterns of 2-implant mandibular overdentures with different positions and angulations of implants: A 3D finite element analysis study

Influence of marginal bone resorption on two mini implant-retained mandibular overdenture: An in vitro study

Contact Info

Product

Resources

About