A Comparison of Four Implant Abutment Connection Designs on the Stress Distribution Pattern using 3D Finite Element Analysis
[Year:2015] [Month:January-April] [Volume:6] [Number:1] [Pages:8] [Pages No:1 - 8]
DOI: 10.5005/jp-journals-10012-1128 | Open Access | How to cite |
The aim of this study was to evaluate the influence of four diffe rent implant abutment connection designs on the amount of stress dissipated on the implant, abutment screw, implant abut ment interface and the bone when subjected to various loading conditions Computer aided design models of four different implant abut ment connections, were constructed using Pro-Engineer 05. The 3D models were meshed using Hymermesh 11. Static load vertical loads 100 N were applied along the long axis of the implant at the central fossa and on the tip of buccal cusp. An oblique load was applied on the tip of the buccal cusp. This mesh was imported into ANSYS 13 to perform the numerical simulation. The result showed that vertical loads closer to the implant long axis produced much lower Von Mises stresses than when loads applied away to the long axis of implant. The two types of conical connections dissipated the least amount of stress to the surrounding bone and most of the stresses were recorded at the implant abutment interface of these connections. The parallel hex connection showed a great amount of stress being dissipated to the abutment screw on vertical loading and most of these stresses were located at the 1st thread of the implant. Conclusion: All the four implant abutment designs studied showed the least amount of stress on the various areas of the assembly and the surrounding bone, when the loads applied were close to the long axis of the implant. Both the conical connections proved to be the most favorable connections, and the parallel hex connection was the least favorable design. The tri-channel cylindrical connection design was stable on loads applied along and closer to the implant axis, but produced high amount of stress on the bone on oblique loads applied at a distance from the long axis of the impla
An Insight into Different Innovative Techniques to Retrieve Cement-retained Implant Supported Prosthesis
[Year:2015] [Month:January-April] [Volume:6] [Number:1] [Pages:8] [Pages No:9 - 16]
DOI: 10.5005/jp-journals-10012-1129 | Open Access | How to cite |
Cement-retained restorations are the most commonly used restorations, though they can compensate for minor discre pancies in the fit of the prosthesis using cement and cement space but the major drawback is retrievability of such prosthesis. The increasing practice of permanently cementing the implant supported prosthesis is more likely to have biologic and technical failures This article describes various methods that simplify the retrievability of cement retained prosthesis. As the retrievability of the implant supported prosthesis is a basic consideration while delivering quality patient based treatment outcomes
[Year:2015] [Month:January-April] [Volume:6] [Number:1] [Pages:3] [Pages No:17 - 19]
DOI: 10.5005/jp-journals-10012-1130 | Open Access | How to cite |
In the orthodontic process, gentle, constant pressure is applied to the teeth that need to be moved against the other teeth which serve as the anchoring unit. The anchoring teeth must be completely stable. Since ages orthodontist have fought for absolute anchorage. Introduction of implants to orthodontic field have made this a possibility. Orthodontic implants also known as mini-implants have widened the horizon of orthodontic field. Available in various forms, sizes, surface texture and material, they have become an essential armamentarium of an orthodontist. This article will deal with various aspects of orthodontic implants—their indications, contraindications, placement sites and complications.
Implant Uncovery and Soft-tissue Modification Utilizing a Diode Laser
[Year:2015] [Month:January-April] [Volume:6] [Number:1] [Pages:6] [Pages No:20 - 25]
DOI: 10.5005/jp-journals-10012-1131 | Open Access | How to cite |
Diode lasers have become more widely used in dental clinical practice and have demonstrated a safe effective method for treatment in and around implants that require soft-tissue modification to either expose the implant for the restorative phase or reshape the gingival margins for esthetics. The article will discuss the methods that have been employed for soft-tissue modi fication around implants traditionally and compare these to use of the diode laser.
Endosseous Implant/Crown Survival in a Companion Animal: A Case Study
[Year:2015] [Month:January-April] [Volume:6] [Number:1] [Pages:9] [Pages No:26 - 34]
DOI: 10.5005/jp-journals-10012-1132 | Open Access | How to cite |
It has long been accepted, although with some limitations, that the discipline of veterinary dentistry has tended to follow the trends and advancements in the human dental field. This is the case for the area of dental implantology. As for any procedure performed on a patient, the patient (in human dentistry) or the pet owner (in veterinary dentistry) need to be able to make an informed decision based on the available evidence, given to them by their clinician. The concept of informed consent is paramount in the relationship between clinician and patient/ pet owner. This case report describes the replacement of four mandibular incisor teeth with two cantilevered implant bridges in a dog. Treatment included selective extractions with bone grafting and dental implants to replace the 4 mandibular incisors.