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Comparison of Stress and Strain Distribution Around Splinted and Nonsplinted 6-mm Short Implants in Posterior Mandible: A Finite Element Analysis Study
- Source :
- Implant dentistry. 27(1)
- Publication Year :
- 2018
-
Abstract
- Purpose This study was designed to compare the biomechanical performance of splinted and nonsplinted short implants, in the posterior mandible, using finite element analysis. Materials and methods Three-dimensional models of short implants with 2 different diameters (4 × 6 mm or 5 × 6 mm) were scanned, and CATIA (R21) was used to simulate the model of an edentulous lower jaw. Experimental groups were designed as follows: (1) D4L6-splinted (three 4 × 6-mm splinted implants), (2) D4L6-nonsplinted, (3) D5L6-splinted, and (4) D5L6-nonsplinted. A 100 N load was applied, and stress and strain values in surrounding bone were analyzed in specific nodes using ANSYS software (16.1). Results The maximum stress values under axial load were found in D5L6-splinted model, and under oblique load, D5L6-nonsplinted model had the maximum stress values. Under axial load, D4L6-splinted model showed maximum strain values, but when oblique load was applied, D4L6-nonsplinted model had the maximum strain values. Conclusion Splinting adjacent short implants may provide less bone strain and stress, especially at the presence of lateral forces. Increasing the implant diameter may be effective in strain reduction, but does not seem to reduce the bone stress, regardless of the direction of the load applied.
- Subjects :
- Orthodontics
Dental Stress Analysis
Posterior mandible
Materials science
Strain (chemistry)
medicine.medical_treatment
0206 medical engineering
Stress–strain curve
Finite Element Analysis
030206 dentistry
02 engineering and technology
Mandible
020601 biomedical engineering
Finite element method
Stress (mechanics)
03 medical and health sciences
0302 clinical medicine
Distribution (mathematics)
medicine
Humans
Periodontal Splints
Implant
Dental Restoration Failure
Oral Surgery
Reduction (orthopedic surgery)
Subjects
Details
- ISSN :
- 15382982
- Volume :
- 27
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Implant dentistry
- Accession number :
- edsair.doi.dedup.....14150ca8f76a78871e9d8bcff559fe7d