scholarly journals Techniques for Evaluating the Fit of Removable and Fixed Prosthesis

2011 ◽  
Vol 2011 ◽  
pp. 1-4 ◽  
Author(s):  
Mallika S. Shetty ◽  
K. Kamalakanth Shenoy

The importance of an accurately fitting fixed prosthesis or a removable prosthesis is essential for the success of the restoration. Ill-fitting prosthesis may cause mechanical failures of the prosthesis, implant systems, or biologic complications of the surrounding tissue. There are several causes related to improper seating of the prosthesis. Some of which can be corrected and the others need to be repeated. Hence the clinician must carefully evaluate the adaptation of the prosthesis using the clinical techniques and combination of the available materials and evaluation methods to optimize the fit of prosthesis. This article reviews the various clinical methods that have been suggested for evaluating the fit of the fixed and removable prosthesis.

2013 ◽  
Vol 12 (1) ◽  
pp. 44
Author(s):  
Poedji Rahajoeningsih ◽  
Rosida Manurung

Dental implants, or completely said as dental implant bodies, function as analogues of tooth roots, achieving aunion directly with jawbone following their insertion into a prepared socket in the bone. Implant system have threebasic components, namely the dental implant body that is lying in the jawbone, abutment that lies on the jawboneand the prosthesis. Dental implants may stabilize a removable prosthesis, complete or partial overdentures, and orsupport and stabilize a fixed prosthesis. In designing implant-supported removable prostheses, there are three formsof anchorage frequently used, namely bar/sleeve (clip) joints which links two or more implants, ball/cap anchoragesapplied individually to two or more isolated implants, and magnets/magnetic keepers. Implant-supported fixedprosthesis is either screwed to or cemented on to the abutment.


2016 ◽  
Vol 17 (9) ◽  
pp. 780-782
Author(s):  
Prajna P Shetty ◽  
Makam Gangaiah

ABSTRACT Introduction Every patient needs a comprehensive treatment planning. Dentists must consider the advantages and disadvantages of the available implant prosthetic options and match them to patient's expectations. Hybrid denture prosthesis is one, i.e., fabricated and retained by screw threaded into implant abutments, most of the time on four implants. Sometimes due to failure of an implant, the prosthesis needs to be replaced with a newer casting to accommodate the existing implants. Clinical consideration This article presents a novel technique, wherein the existing framework of the fixed prosthesis can be used to convert the fixed prosthesis to removable prosthesis on the existing implants, without recasting. Clinical significance The implant is economical and easily convertible from a fixed-fixed to a fixed-removable prosthesis. Hence, there is reduced morbidity, reduced cost, and an increased psychological comfort for the patient. How to cite this article Shetty PP, Gangaiah M, Chowdhary R. Hidden Overdenture Bar in Fixed Implant-retained Hybrid Prosthesis: Report of a Novel Technique. J Contemp Dent Pract 2016;17(9):780-782.


10.12737/3302 ◽  
2014 ◽  
Vol 21 (1) ◽  
pp. 18-21
Author(s):  
Гришилова ◽  
E. Grishilova ◽  
Кашников ◽  
P. Kashnikov ◽  
Гаража ◽  
...  

The use of fixed prosthesis without preventive measures to improve the resistance of the prepared teeth is unjustified from the biological point of view. The success of prosthetic treatment of the patients with non-removable prosthesis is largely determined by a therapeutic effect on the fabric of the prepared teeth and high-quality prosthetic fixation. One of the most promising ways to solve this problem is the use of laser radiation. Investigation of laser radiation effect on the permeability of dentin and pulp of the functional state of the prepared teeth consisted of experimental and clinical stages. Experiments were carried out on 16 vital teeth of two mongrel dogs. In the experiment the influence of DO on the permeability of the dentin the prepared teeth was studied by means of the microscope. The materials for the clinical study were the results of the orthopedic treatment of 105 patients aged 21 to 60 years (55 men and 50 women). To assess the state of reactivity of the teeth and the impact of treatment measures the authors used a study of temperature, tactile sensitivity, electro-odontometry by means of the device Digitest. The study demonstrated that the use of laser radiation significantly reduces the permeability of dentin prepared teeth. The use of laser radiation reduces the permeability of 40.9% compared with the control, significantly reduced the incidence of adverse results of applying non-removable dentures.


2020 ◽  
Vol 13 (8) ◽  
pp. e233744
Author(s):  
Ritu Saneja ◽  
Atul Bhatnagar ◽  
Nancy Raj ◽  
Pavan Dubey

Oral rehabilitation of partially edentulous arches requires careful treatment planning before any prosthodontic intervention. The connection of the metal framework of fixed (fixed dental prosthesis (FPD)) and removable partial denture using adhesive attachments is a good alternative prosthetic option when solely fixed prosthesis (FPD or implant) cannot be used due to anatomical limitation. Attachments are the tiny interlocking devices that act as a hybrid link to join removable prosthesis to the abutment and direct the masticatory forces along the long axis of the abutment. This joint acts as a non-rigid stress breaker, which helps in distributing the occlusal load. Precision and semiprecision attachment have always been bordered by an aura of mystery due to technique sensitive procedure and lack of knowledge. The following case describes a combined contemporary and conventional approach and treatment sequence with the use of attachments for the rehabilitation of partially edentulous arches.


Author(s):  
Iyad ABOU_RABII ◽  

A 74-year-old woman presented in our dental practice with severe loss of alveolar bone and soft tissue without any apparent systemic pathology contributing to her dental conditions. She had a complete removable prosthesis supported with a four locaters system. Unfortunately, two of the four supporting implants were failed. The patient wanted a fixed prosthesis. The treatment plan was to use the remaining implant with an additional axial implant and two cortical plates (Victory ®) followed by implant placement. The implants and plates were immediately loaded with a screw-retained prosthesis made with Znatex frame (Victory Implants ®) and resine.


2012 ◽  
Vol 11 (1) ◽  
pp. 57
Author(s):  
Muslich Mahmud ◽  
Jeffrey Jeffrey

Do literary study of the role and function of the prosthesis in overcoming or restoring function stomatognathicsystem cannot function optimally. There is a variety of lost body parts due to illness or accident requiringabnormalities restoration or rehabilitation with artificial materials. To overcome this thing, there are a variety ofprosthesis, the dental prosthesis, maxillofacial prosthesis, and supporting prosthesis (ancillary prosthesis). Theanalysis focused on overcoming tooth loss causes shortening jaw arch and various maxillofacial abnormalitiesusing compatible materials, a variety of complications and their consequences. Data showed that the loss of thesystem's structure can disrupt stomatognathic masticatory function, esthetics, phonetics, swallowing and breathing.Installation of a removable prosthesis, partial or full will improve the efficiency of mastication and chewing ability,a greater increase in fixed prostheses and implants. Esthetic and satisfaction very disturbed due to missing fronttooth with a large variation of subjectivity for the age group, social, cultural, regional and state. Generally, patientsare less affected by the phonetic compared to mastication. Although not fully, function prosthesis can replacemissing teeth and the surrounding tissue, and keep tissue health of the stomatognathic system. It was concluded thatprosthesis can help, restore and maintain function of stomatognathic system, namely the mastication, esthetics,phonetics, swallowing and breathing.


Author(s):  
Kaoru Sakurai ◽  
Tomofumi Takano

ABSTRACT Zirconia has recently been clinically applied as an ideal tooth color material which acquires superior mechanical properties with high stability without water absorption and dissolution with the progression of the CAD/CAM technique. Dental prosthetic materials have recently evolved to those for metal-free restoration because of the strength, esthetics and environmental protection concerning rare metals. In addition, the increase in demands for metal-free restoration is not limited to fixed prosthesis and dental implants, and it is also directed to application for removable prosthesis. The load-bearing ability of zirconia has been shown to be comparable to that of Co-Cr alloy. Ce-TZP/Al2O3 nanocomposite (NANOZR) with strength, toughness, and thermal stability comparable or superior to those of previously used yttria-stabilized zirconia (Y-TZP) has been clinically applied, suggesting its applicability as a denture base material substituting for metal. How to cite this article Takano T, Sakurai K. Overview of Zirconia: Application as Denture Base Material Substituting for Metal. Int J Prosthodont Restor Dent 2013;3(4):153-156.


Author(s):  
Adrian F. van Dellen

The morphologic pathologist may require information on the ultrastructure of a non-specific lesion seen under the light microscope before he can make a specific determination. Such lesions, when caused by infectious disease agents, may be sparsely distributed in any organ system. Tissue culture systems, too, may only have widely dispersed foci suitable for ultrastructural study. In these situations, when only a few, small foci in large tissue areas are useful for electron microscopy, it is advantageous to employ a methodology which rapidly selects a single tissue focus that is expected to yield beneficial ultrastructural data from amongst the surrounding tissue. This is in essence what "LIFTING" accomplishes. We have developed LIFTING to a high degree of accuracy and repeatability utilizing the Microlift (Fig 1), and have successfully applied it to tissue culture monolayers, histologic paraffin sections, and tissue blocks with large surface areas that had been initially fixed for either light or electron microscopy.


Author(s):  
Fred E. Hossler

Preparation of replicas of the complex arrangement of blood vessels in various organs and tissues has been accomplished by infusing low viscosity resins into the vasculature. Subsequent removal of the surrounding tissue by maceration leaves a model of the intricate three-dimensional anatomy of the blood vessels of the tissue not obtainable by any other procedure. When applied with care, the vascular corrosion casting technique can reveal fine details of the microvasculature including endothelial nuclear orientation and distribution (Fig. 1), locations of arteriolar sphincters (Fig. 2), venous valve anatomy (Fig. 3), and vessel size, density, and branching patterns. Because casts faithfully replicate tissue vasculature, they can be used for quantitative measurements of that vasculature. The purpose of this report is to summarize and highlight some quantitative applications of vascular corrosion casting. In each example, casts were prepared by infusing Mercox, a methyl-methacrylate resin, and macerating the tissue with 20% KOH. Casts were either mounted for conventional scanning electron microscopy, or sliced for viewing with a confocal laser microscope.


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