Effect of non-axial implant loading on maxillary anterior region with different bone density. A 3-dimensional finite element analysis.
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 1
Abstract
Background: Biochemical factors play a substantial role in implant success or failure. Application of occlusal forces induces stresses and strain within the implant prosthesis complex and affects the bone remodelling process around the implant. Off axis force which is common during normal mastication would appear to induce more stress than does axial force. In case where aesthetics require tooth overlap in the anterior region, off axis loading of implant is usually unavoidable. Objectives: the purpose of this study is to evaluate the influences of stress and strain distribution in bone around anterior maxillary implant using 2 type of bone and 3 different loading angle Materials and methods: A 3 D finite element model was made of the anterior maxilla using the details from a CT scan, using computer software (ANSYS 11). A simulated 13 x 4.2 mm implant was placed in the centre of the bone and it suprerstructure were created. Six different testing conditions incorporating 2 type of cancellous bone( high and low density ) under 3 different loading angles( 0, 30 , 60 degree) relative to long axis of the implant were applied.. The stress and strain generated in the cortical and cancellous bone around the implant was recorded and evaluated with the help of ANSYS. Results: The maximum equivalent stress/strain increased linearly with the increase of loading angle. In addition to loading angle, bone quality also influenced resultant stress distribution. For low density bone model a substantial strain in the cancellous bone was found. Conclusion: to achieve a favorable prognosis under off axis loading of an anterior maxillary implant, careful case selection for appropriate bone quality and precise occlusal adjustment should be attempted to optimally direct occlusal force toward the long axis of the implant.
Authors and Affiliations
Dr. Vivek Lath
Keywords
Related Articles
- EP ID EP494916
- DOI -
- Views 138
- Downloads 0
Ambulatory Rehabilitation of a case of Bilateral Tibial Hemimelia and Right Proximal Focal Femoral Deficiency-A Case Report
Congenital Limb deficiency with Bilateral Tibial Hemimelia results in deformity and disability of the person not only to the physical body but also psychologic...
Cutaneous and oral manifestations in Systemic sclerosis: A case series and review
Systemic sclerosis (SS) is a rare autoimmune disorder characterized by connective tissue and vascular abnormalities, resulting in induration and thickening of skin and fibrosis of i...
Comparison of outcome of scleral buckling(SB) versus pars plana vitrectomy(PPV) in cases of single break primary retinal detachment at a large tertiary centre of India
Objective :The aim of our study is to compare the outcome of scleral buckling versus pars plana vitrectomy in cases of single break RDD patients and also study the common side effects post operatively. Mterial and method...
Study of the Cases of Blunt Trauma Abdomen Either Isolated or In Combination with Other Associated Injuries by Different Causes Attended Admitted To Department of Surgery in a Tertiary Centre.
Background: Trauma has been defined as damage to the body caused by an exchange with environmental energy that is beyond the body resilience (William Hadden)1. Thorax and abdomen are subjected to every type of injury tak...
Use of Nasolabial Flap in Oral Cancer Surgery: Our Experience in 96 Patients.
Surgical defects of oral cavity and orofacial region are challenging because of the aesthetic and functional demands and dynamic nature of the area. Reconstruction of defects following oral cancer surgery can be done wit...