Maxillary Single-tooth Replacement Utilizing a Novel Ceramic Restorative System: Results to 30 Months

10.1563/805.1 ◽  
2006 ◽  
Vol 32 (4) ◽  
pp. 190-199 ◽  
Author(s):  
Zeev Ormianer ◽  
Guido Schiroli
Keyword(s):  
Soft Tissue ◽  
Zirconia Ceramic ◽  
Tooth Replacement ◽  
Screw Loosening ◽  
Single Tooth ◽  
Patient Reported ◽  
Ceramic Restorations ◽  
Abutment Screw

Abstract This study reports on the first longitudinal results of an alumina (70%)-zirconia (30%) ceramic restorative system for implant-supported, single-tooth replacement in the anterior maxillary jaw. Eighteen patients (9 men, 9 women, mean age = 42.4 years) were treated with 22 implants placed into 19 extraction sockets and 3 residual ridges. Eight implants were immediately loaded with nonoccluding provisional prostheses. All implants were definitively loaded with fully occluding ceramic restorations after osseointegration and soft tissue maturation. Patients were monitored from 7 to 30 months (mean = 18.1 months) after loading. All implants osseointegrated and were successfully restored. One case of abutment screw loosening occurred because of patient parafunction (bruxing), and another patient reported chewing pain attributed to malocclusion. Both problems were successfully resolved without further incidence. Within the context of this study, single-tooth replacement in the anterior maxillary jaw was successfully achieved with alumina-zirconia ceramic single-tooth restorations with up to 30 months of clinical function.

scholarly journals Single-Tooth Implant Restorations in the Esthetic Zone With PureForm Ceramic Crowns: 3 Case Reports

2004 ◽  
Vol 30 (6) ◽  
pp. 358-363 ◽  
Author(s):  
Guido Schiroli
Keyword(s):  
Soft Tissue ◽  
Case Reports ◽  
Facial Appearance ◽  
Clinical Use ◽  
Implant Placement ◽  
Single Tooth ◽  
All Ceramic ◽  
Ceramic Crowns ◽  
Ceramic Restorations ◽  
Single Tooth Implant

Abstract The anterior maxillary jaw is frequently called the “esthetic zone” because of its high visibility and influence on facial appearance. Implant placement and single-tooth restoration in this region can present some esthetic challenges for the clinician. The underlying titanium abutment, for example, can diminish porcelain translucency and result in a darkened prosthesis. Subsequent changes in soft-tissue margins can also result in the visibility of titanium at the gingival crevice. In recent years, all-ceramic restorations have gained popularity in response to increasing patient demands for improved esthetics. This article describes the clinical use of a new, tooth-shaped, ceramic coping system in the restoration of single teeth in the esthetic zones of 3 patients. Four tapered screw implants were placed in the locations of the central incisors (n = 3) and bicuspid (n = 1). Conventional ceramic protocols were used to fabricate all-ceramic crowns that were cemented onto small core abutments attached to the implants. All prostheses restored the biomechanical needs of the patients and achieved excellent esthetic results.

Immediate functional loading of implants in single tooth replacement: a prospective clinical multicenter study

2008 ◽  
Vol 19 (8) ◽  
pp. 740-748 ◽  
Author(s):  
Mauro Donati ◽  
Vincenzo La Scala ◽  
Mauro Billi ◽  
Biagio Di Dino ◽  
Paolo Torrisi ◽  
...  
Keyword(s):  
Multicenter Study ◽  
Tooth Replacement ◽  
Single Tooth ◽  
Functional Loading

scholarly journals Single-tooth replacement: factors affecting different prosthetic treatment modalities

2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Firas A Al-Quran ◽  
Raed F Al-Ghalayini ◽  
Bashar N Al-Zu'bi
Keyword(s):  
Treatment Modalities ◽  
Tooth Replacement ◽  
Factors Affecting ◽  
Single Tooth

A Prospective Randomised Control Trial Comparing Functional with Mechanical Axis Alignment in Total Knee Arthroplasty: study protocol for an investigator initiated trial

2021 ◽  
Author(s):  
Richard Steer ◽  
Beth Tippett ◽  
R Nazim Khan ◽  
Dermot Collopy ◽  
Gavin Clark
Keyword(s):  
Total Knee Arthroplasty ◽  
Soft Tissue ◽  
Knee Arthroplasty ◽  
Functional Outcomes ◽  
Medical Information ◽  
Randomised Control Trial ◽  
Computer Assisted ◽  
Patient Reported ◽  
Total Knee ◽  
Alternative Alignment

Abstract Background: A drive to improve functional outcomes for patients undergoing total knee arthroplasty (TKA) has led to alternative alignment being used. Functional alignment (FA) uses intraoperative soft tissue tension to determine the optimal position of the prosthesis within the patients soft tissue envelope. Angular limits for bone resections are followed to prevent long term prosthesis failure. This study will use the aid of robotic assistance to plan and implement the final prosthesis position. This method has yet to be compared to the traditional mechanically aligned (MA) knee in a randomised trial. Methods: A blinded randomised control trial with 100 patients will be undertaken via Perth Hip and Knee clinic. Fifty patients will undergo a MA TKA and fifty will undergo a FA TKA. Both alignment techniques will be balanced via computer assisted navigation to assess prosthetic gaps, being achieved via the initial bony resection and further soft tissue releases as required to achieve satisfactory balance. The primary outcome will be the forgotten joint score (FJS) two years after surgery, with secondary outcomes being other patient reported outcome measures, clinical functional assessment, radiographic position and complications. Other data that will be collected will be patient demography (Sex, Age, level of activity) and medical information (grade of knee injury, any other relevant medical information). The linear statistical model will be fitted to the response (FJS), including all the other variables as covariates. Discussion: Many surgeons are utilising alternative alignment techniques with a goal of achieving better functional outcomes for their patients. Currently MA TKA remains the gold standard with good outcomes and excellent longevity. There is no published RCTs comparing FA to MA yet and only two registered studies are planned or currently in progress. This study utilizes a FA technique which differs from the two studies. This study will help determine if FA TKA has superior functional results for patients.Trial registration: This trial has been registered with the Australian New Zealand Clinical Trials Registry (ANZCTR) http://www.anzctr.org.au: U1111-1257-2291, registered 25th Jan 2021. It is also listed on www.clinicaltrials.gov: NCT04748510

Production of a Piece of Custom-Made Abutment Screwdriver: Technique and Case Report

2019 ◽  
Vol 45 (2) ◽  
pp. 133-138
Author(s):  
Hasan Kocaağaoğlu ◽  
Haydar Albayrak ◽  
Zekeriya Taşdemir ◽  
Sezgi Cinel Sahin ◽  
Mustafa Zortuk
Keyword(s):  
Case Report ◽  
Production Method ◽  
Clinical Report ◽  
Screw Loosening ◽  
Custom Made ◽  
Abutment Screw

Crown fractures, framework fractures, and abutment screw loosening or screw fracture are examples of mechanical implant failures. Abutment screw loosening is a serious problem that can result in abutment screw fractures. This clinical report describes the production method of a custom-made abutment screwdriver piece for a patient with abutment screw loosening.

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