Fixed Prosthesis

Author(s):  
Chuan-shi Du ◽  
Zhi-tong Wei
Keyword(s):  
Author(s):  
Vaishnavi Rajaraman

The personality of an individual is often judged by his looks. A beautiful smile brings immense pleasure, not only to the viewer but also to the wearer of the smile. Time and again in dentistry, esthetics has been the prime area of focus. Prosthodontic rehabilitation also involves esthetics as its key factor, which is challenging especially in patients with congenital diseases or syndromes. Ectodermal dysplasia is one such hereditary condition associated with failure of the development of ectoderm in the embryonic stage and can cause multiple abnormalities. The ectodermal structures like skin, nails, hair, sweat glands, and teeth are particularly affected. The management of ectodermal dysplasia is quite complex and multidisciplinary owing to the abnormal morphology in craniofacial structures, a wide array of dentofacial defects, and age of the affected individuals, as most of them are very young when they report for or are evaluated for treatment. The deciduous as well as the permanent dentition in these patients may present with anodontia, hypodontia or oligodontia or combination of these. Hypodontia is one of the most common intraoral finding among these scenarios. Therefore, the affected patients obviously require absolute attention towards prosthodontic treatments throughout their developmental years till their adulthood. This report presents a case of an adult diagnosed with having ectodermal dysplasia with hypodontia. By appropriate modification and customization, the prosthodontic management was meticulously planned for the young patient which involved a full mouth rehabilitation with tooth supported fixed prosthesis in the maxillary and mandibular arch. The devised treatment plan had a key impact on the psychological, the masticatory function, speech and facial esthetics of the patient.


2018 ◽  
Vol 56 (4) ◽  
pp. 338
Author(s):  
Byung-Suk Jung ◽  
Young-Chan Jeon ◽  
Chang-Mo Jeong ◽  
Mi-Jung Yun ◽  
So-Hyoun Lee ◽  
...  

2010 ◽  
Vol 36 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Guillaume Odin ◽  
Thierry Balaguer ◽  
Charles Savoldelli ◽  
Gérard Scortecci

Abstract The authors describe a case of squamous cell carcinoma of the oral cavity managed by ablative surgery, mandibular reconstruction with a fibula free flap, and implant placement during the same session. Immediate functional implant loading, respecting the principles of basal implantology, was performed 48 hours later using a highly rigid, screw-secured fixed prosthesis that served as an external fixator for the implants and grafted bone. Implant loading before external beam radiotherapy improves flap stability, bone consolidation, and quality of life. Functional and esthetic outcomes were evaluated 2 years after radiotherapy was completed.


2012 ◽  
Vol 38 (S1) ◽  
pp. 461-466 ◽  
Author(s):  
Eugenia Candel ◽  
David Peñarrocha ◽  
Maria Peñarrocha

The purpose of this article is to review the literature published and to assess the success of treatment of patients with atrophic posterior maxilla with pterygoid implants. Studies from 1992 to 2009 on patients with atrophic posterior maxilla rehabilitated with pterygoid implants were reviewed. Those reporting clinical series of at least 5 patients with atrophic posterior maxilla (Class IV and V of Cawood and Howell), rehabilitated with pterygoid implants and fixed prosthesis, and with 12 months minimum follow-up were included. In each study the following were assessed: number of patients, number of implants, surgical technique, prosthetic rehabilitation, success rate, bone loss, complications and patient satisfaction. Thirteen articles were included, reporting a total of 1053 pterygoid implants in 676 patients. The weighted average success of pterygoid implants was 90.7%; bone loss evaluated radiographically ranged between 0 and 4.5 mm. No additional complications compared with conventional implants were found, and patient satisfaction level with the prosthesis was high. Pterygoid implants have high success rates, similar bone loss levels to those of conventional implants, minimal complications and good acceptance by patients, being therefore an alternative to treat patients with atrophic posterior maxilla. Two anatomical locations in which implants are placed in the retromolar area can be distinguished: the pterygoid process and the pterygomaxillary region. Implant lengths and angulations vary between these two techniques.


Author(s):  
Mohammed Abusaad Siddiqui ◽  
Sudheer N ◽  
Dulala Vikram Raj ◽  
Aditi Chintamani Sabnis ◽  
Alluru Amrutesh ◽  
...  

The treatment modality for completely edentulous arches has shifted from complete dentures to dental implants during the last 15-20 years. Tilting of implants has reduced the concern of resorbed posterior ridges in completely edentulous patients with “All-on-four” and “All-on-six” concept of dental implants. The purpose of this study is to compare the biomechanical behaviour of the “All-on-four”, “All-on-six” models with tilted distal implants at different angulations of 30 and 45 ° with four parallel placed implant-supported fixed prosthesis, and six parallel placed implant-supported fixed prosthesis models as controls using three-dimensional finite element analysis. The results showed that in all the models, in cancellous bone, cortical bone, implant and prosthesis – “All-on-four” model with distal implants tilted at an angulation of 30° showed stress values less than or equivalent to all the other models except on the implant in the presence of cantilever and on prosthesis during full mouth biting load where maximum stresses were observed. The study shows that All-on-four concept with tilted distal implants at an angulation of 30° showed stress values favourable for the rehabilitation of completely edentulous maxilla, but the presence of cantilever remains an area of concern.


1961 ◽  
Vol 11 (4) ◽  
pp. 735-742 ◽  
Author(s):  
Anthony La Forgia
Keyword(s):  

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