cementation

..We therefore analyzed implant survival of cemented and uncemented THA, and whether the modes of failure differ between the two methods of fixation...

..The lower the preoperative BMD, the higher was the postoperative bone loss. We found that after the phase of acute bone loss, further loss was minimal, reflecting merely the normal ageing of bone after uncomplicated THA...

..We have found no other large published series of THRs investigating operating time and revision...

..indirect restorations made of ceramics or indirect composite resins depends on their successful treatment and cementation. The cementation technique is determined by the type of restorative material-ceramics or indirect composite ..

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..It is expected that differences in the ability of cements to form thin films will affect the seating of cemented restorations...

..With respect to aseptic loosening of the femoral component, our data only suggest that short-term (3 months-3 years) loosening cannot be predicted by immediate postoperative radiographic evaluation of cement mantle...

..CONCLUSION: After a minimum of ten years of follow-up, cementless acetabular fixation in revision hip arthroplasty had produced durable results that were markedly better than those reported for acetabular fixation with cement...

..These indications include elderly patients with minimal bone loss or large femoral canals and the cement-within-cement technique where a new femoral component is cemented into an intact cement mantle...

..The use of a proximal stem centraliser may improve the cement-bone interdigitation and shear strength at the cement-bone interface, particularly in the region of the proximal femur...

..Patients preferred cemented unipolar Thompson hemiarthroplasty over the uncemented unipolar Austin-Moore hemiarthroplasty. A larger randomised prospective trial is needed to confirm this finding...

..003), walking ability ( P=0.002), use of walking aids ( P=0.003) and activities of daily living ( P=0.009) in the uncemented group. Our findings support the use of cemented hemiarthroplasty in the elderly...

..We evaluated the population-based survival of uncemented THA for primary osteoarthritis (OA) in patients under 55 years of age and the factors affecting survival...

..There have been no in vivo studies showing that this distance is either achieved in clinical practice or needed for clinically satisfying results. Thus, we assessed the femoral stem-bone anchorage of the MP prosthesis using CT...

..Contemporary bearing surfaces in association with such stems may provide long-lasting total hip arthroplasties, even in young, active patients...

..The incidence of embolism and change in shunting are reduced with a modified cementing technique that limits increases in intramedullary pressure...

..Level of Evidence: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence...

..We investigated whether design-related factors play any role in the risk of non-aseptic revision of the 3 most frequently used primary cemented stem designs in the Swedish Hip Arthroplasty Register...

..of this study was to evaluate the microleakage around Class V ceramic inlay restoration using three different cementation techniques. Class V preparations were made on the buccal surfaces of 45 freshly extracted premolar teeth...

..We studied long-term outcome based on data in the Norwegian Arthroplasty Register...

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..In conclusion, an accurate and careful preoperative templating can result in a balanced hip reconstruction by correcting the leg length differences and restoring the offsets...

..The choice of optimal implant fixation in total hip replacement (THR)--fixation with or without cement--has been the subject of much debate...

b>Cementation of inlay restoration is critical. Because of its high organic content, dentin is a less favorable substrate for bonding than enamel. Therefore it is important to improve dentin adhesion when placing ceramic inlay restorations.

..05). Accordingly, a tendency toward improved cement penetration into cancellous bone was found using the Exeter pressurizer (P >.05)...

..05), and the stiffer SPII CoCr stems (Link) had a larger bone loss than the SPII Titanium stems (Link). However, no overall relationship was found between the BMD changes and stem migration or stem stiffness...

..05). Load-induced micro-crack length-density was significantly dependent on axial position, increasing proximally (p<0.001). Micro-motions were small, all stems rotated internally. Cement damage did not correlate with micro-motion...

..The beneficial effect is more marked in the area that is most likely to show deficiency in the cement-bone interface on postoperative radiographs...

..36). There were significantly more lytic lesions and radiolucent lines at five years (p = 0.0061) with technique 1. We conclude that technique 2 is not worse and may produce better long-term results than current teaching suggests...

..by 3 cementing systems: the Howmedica Mark 1 (Stryker Howmedica, Limerick, Ireland) and DePuy Cemvac retrograde cementation systems (DePuy CMW, Blackpool, UK), and a novel antegrade system consisting of a 60-mL catheter-tipped syringe ..

..Stability and ingrowth may be jeopardized by immediate loading of the implant while functional recovery may be promoted and periprosthetic demineralization reduced...

During total hip arthroplasty, the intraoperative cementation pressure was measured inside one of the acetabular anchorage holes...

The cementation of a total hip prosthesis may cause bone necrosis, either by direct toxicity or by generation of heat during the polymerization process. This necrotic bone may create conditions that encourage the growth of bacteria...

..LEVEL OF EVIDENCE: Therapeutic Level IV. See Instructions to Authors for a complete description of levels of evidence...

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..6 at latest followup. Cemented endoprosthesis is a reliable procedure after resection of the distal femur for tumors. LEVEL OF EVIDENCE: Therapeutic study, level IV (case series)...

..In vitro studies ideally recommend concentric placement of the acetabular component. This appears difficult to achieve consistently in vivo in most patients using the components in this study...

..Pore fractions greater than 30% resulted in large increases in stem internal rotation, suggesting that attempts to maintain surface porosity at or below this level may be desirable to minimize the risk of clinical loosening...

..Only one of 23 hips with a cemented Elite component (4%) was revised for loosening and osteolysis. Our findings show that the Exeter Universal stem implanted outside the originating centre has excellent medium-term results...

..The purpose of this retrospective study was to evaluate the results of a consecutive series of Metasul total hip arthroplasties with a cemented socket...

..We discuss the likely causes for the corrosion. The combination of a titanium stem and cement appears to facilitate crevice corrosion...

..2%. There were no revisions for aseptic loosening. In the present series, the Elite Plus hip arthroplasty has produced clinical and radiological results, which are comparable with the Charnley hip at five years...

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This study compared the fracture strength of direct and indirect resin composite laminate veneers and evaluated the effect of a bidirectional E-glass woven fiber application at different locations at the cementation interface.

..Fixation with a conventional cementing technique was also evaluated as a control...

..Proximal bone loss due to stress-shielding is a matter of concern after uncemented femoral hip revision. We have used short, proximally hydroxyapatite-coated prostheses in revision since 1989, and we now report the results...

..01). Inadequate cementation (Barrack C and D grades) was the most significant feature, with an estimated odds ratio of 9...

..Standard post-operative radiographs were reviewed blindly to assess the penetration of cement into the iliac wing. Penetration was significantly greater in the group with aspiration of the iliac wing...

..Uncemented femoral fixation with this component design in rheumatoid patients appears to be a promising treatment...

..86% (95% CI 93.1 to 98.9) and that with any reoperation as the endpoint 91.74% (95% CI 87.7 to 95.8). No adverse features have emerged as a consequence of the modular connection between the head and neck of the implant...

..Patients with avascular necrosis had a higher failure rate than patients with other diagnoses (P =.001). An area of cement mantle that was <2 mm thick affected adversely the survival rate of the acetabular components (P =.04)...

..However, for younger and more active patients, perfection of the cementation technique is crucial, particularly in modern implant systems such as resurfacing...

..This subsidence and the rotational instability imply a substantial risk of abrasive wear and increased stresses in the cement mantle...

..We investigated the association between early changes in periprosthetic bone mineral density (BMD) and patient-related factors...

..We believe that joint registries should include radiological surveillance in order to provide reliable information about medium-term outcomes for hip prostheses...

..When Charnley-Kerboul stems are cemented line-to-line, good clinical results are observed because cement-deficient areas are limited and are frequently supported by cortical bone...

..Hip resurfacing for femoral head necrosis should be performed with caution...

..High pressures around implants can cause bone lysis and loosening. We investigated how pressures are generated around cemented femoral stems...

..This approach to treating the patient with a fixed cementless shell and a worn polyethylene liner can provide a durable construct with minimal morbidity...

..The pump mechanism was shown to occur at the interface of a newly implanted polished double-tapered stem and emphasizes the importance of a complete mantle to protect the femoral bone from the raised fluid pressures...

..Interfacial defects could have a major effect on the stability and survival of the implant...

..enamel-ceramic specimens (Group NTc) were maintained in deionized water at room temperature for 1 week after cementation, and the other 40 specimens (Group Tc) were subjected to thermal cycling treatment (2500 cycles, 5 degrees C to ..

..To evaluate the outcome of different types of polyethylene, bone cements and one design of uncemented fixation with porous and ceramic coating using radiostereometry, bone densitometry, conventional radiography and clinical parameters...

..In addition, a possible influence of the preparation form (molars or premolars) and the cementation material (glas-ionomer or composite) was analyzed...

..Problems inherent with acrylic bone cement, however, have encouraged other surgeons to use alternative surfaces to allow biologic fixation...

..The authors conducted a study to characterize the in vitro retention, fracture and light transmission behavior of four different fiber-reinforced resin-based composite root canal posts...

..This study evaluated the strength and fracture pattern of monolithic posterior CAD/CAM crowns hypothesizing that zinc-phosphate cemented lithium disilicate crowns might show the same fracture strength as adhesively cemented crowns...

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Prosthetic restorations that fit poorly may affect periodontal health and occlusion. Studies that have evaluated the accuracy of fit of ceramic restorations before and after cementation assessed primarily intracoronal restorations.

..Purpose This study investigated the influence of different luting agents and cyclic loading under wet conditions on the fracture load of CAD-CAM and pressable all-ceramic crowns...

..The Norwegian Arthroplasty Register reported that CMW3 cement performed poorly for femoral stem fixation...

..The purpose of this study was to evaluate the clinical performance of Procera AllCeram crowns placed over a 5-year period at three different private dental practices...

..There is no consensus as to whether uncemented or cemented femoral stems should be used in younger patients. We compared the uncemented Cone stem to the cemented Bimetric stem in young patients with osteoarthritis...

..Treatment was completed with the cementation of full-ceramic crowns on teeth 11 and 21. Informed consent was obtained from the patient...

..The objectives of this retrospective study were to determine whether retention of a well-fixed acetabular component at the time of isolated femoral revision was compatible with long-term socket survival...

..The current study investigated the effect of different luting agents on the fracture resistance of Procera AllCeram copings...

..Overall, modern uncemented femoral stems performed well. Moderate differences in survival between well-performing stems should be interpreted with caution since the differences may be caused by factors other than the stem itself...

..The aim of this study was to compare fracture strength and fatigue resistance of new zirconium-oxide and feldspathic all-ceramic crowns made with computer-aided design/computer-aided manufacturing (CAD/CAM)...

..To evaluate preparation designs of compromised cusps and whether or not they influence masticatory fatigue, fracture resistance, and marginal discrepancy of ceramic partial-coverage restorations (PCRs) luted on mandibular molars...

..Restoration dimensions for reduced coping thicknesses or less invasive finish line preparations are required...

..Cement-within-cement technique is indicated for well-fixed cemented femoral components that require revision for instability, improved acetabular exposure, equalization of leg lengths, or damage to a monoblock femoral head...

..Zinc phosphate, Panavia 21 and VarioLink II were used for cementation. Pull out tests were done in an Instron universal testing machine with a speed of 0...

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..The aim of this study was to investigate the influence of a fiber post on the fracture mechanics of zirconia crowns inserted over endodontically treated teeth with different extent of coronal damage...

..an adhesive core material placed under artificial crowns without pins or posts and to assess the effect of different preparation designs and cementation techniques (glass ionomer compared with adhesive cementation) used for the crowns.

..The luting agent used significantly affected the recorded fracture loads...

..The aim of this prospective study was to evaluate the clinical performance of anterior and posterior fixed partial dentures (FPDs) with frameworks made using DC-Zirkon after a mean observation time of 3 years...

To compare in vitro the influence of 3 cementation techniques on leakage and fracture strength of alumina all-ceramic crowns after cyclic loading in an artificial chewing simulator.

..1). Overall, Panavia F 2.0 showed the least microleakage, followed by RelyX Unicem and Multilink, respectively...

..was to evaluate the effect of variations in tooth preparation design on the marginal accuracy before and after cementation and on the fracture strength of the ceromer/fiber reinforced composite crown...

..Further follow-up is required to assess the long-term results in the light of in vitro studies which have questioned the quality of the cement-in-cement bond...

..This in vitro study investigated the marginal adaptation and fracture resistance of heat-pressed glass-ceramic and fiber-reinforced composite molar crowns luted with resin, resin-modified glass-ionomer, or zinc-oxide-eugenol-free cements...

..Dental cements may be used in practice with a wide range of mixing ratios. Accordingly, the impact of cement type and mixing on the strength of alumina reinforcing porcelain was investigated...

..It was concluded that, despite the higher cement stresses with debonded stems, polished prostheses do not provoke the damage accumulation failure scenario...

..In vitro inducible micromotion and permanent migration measurements, together with cement-stem interface fretting damage and cement fatigue damage, can help predicting the clinical performance of cemented stems...

..These include an inadequate thickness of polyethylene sterilized by gamma irradiation in air, a lack of mechanical bonding between the liner and its metal shell, and the high wear rate from the use of a 32-mm titanium femoral head...

..Concerns recently arose concerning the long-term endurance of such implants in active patients. In fact, it was suspected that cyclic loads applied by demanding patients could lead to fixation failure...

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..Should these aims be met, the proposed model will be of great use in pre-clinical testing of novel cemented stem designs. ..

..As a result, patient pain, suffering and morbidity will be minimized. ..

..Implant body diameter, prosthesis cementation method, and implant-abutment connection design have all been reported to significantly affect abutment screw ..

..orthopaedic and dental implants, as well as nearly all restorative dental procedures that relay on bonding or cementation. the central hypothesis is that the DEJ can be used as a biomimetic model for construction of new synthetic- ..

..Implant body diameter, prosthesis cementation method, and implant-abutment connection design have all been reported to significantly affect abutment screw ..

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..When combined, the experimental and computational approaches will provide design guidelines that could significantly reduce revision rates of cemented hip replacements due to implant loosening. ..

..glass- ceramic crowns and veneered alumina crowns are vulnerable to both near-contact occlusal damages and cementation internal surfaces radial fractures, while the veneered Y-TZP crowns are prone to veneer fracture owing to the ..

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..glass- ceramic crowns and veneered alumina crowns are vulnerable to both near-contact occlusal damages and cementation internal surfaces radial fractures, while the veneered Y-TZP crowns are prone to veneer fracture owing to the ..

..Hypothesis: Element mercury released in DWW is converted to Hg(lI) and then in more limited amounts to methyl-mercury by specific biofilm bacterial species in the Dental sewage pipes. ..

..This research will elucidate important mechanisms of particle-induced, chemokine-directed cell trafficking and suggest new treatment strategies. ..

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..This research will elucidate important mechanisms of particle-induced, chemokine-directed cell trafficking and suggest new treatment strategies. ..

..This application represents an important step in this ongoing research initiative. ..

..The MSKCC Therapeutics faculty believes that the ALS, if successful in this model, has promise as an adjunct for limb salvage procedures and in the treatment of many unresectable or disfiguring tumors. ..

..This application represents an important step in this ongoing research initiative. ..

..Results have implications for the workforce crisis in long-term care, and can benefit all individuals who live in, work in, and care about those living and working in, nursing homes and residential care/assisted living facilities. ..

..This project will constitute a significant advance in the data available to maximize the end-of-life experience of millions of elderly who die in LTC settings. ..

..The primary comparison between these prosthesis designs will be the incidence of Outcomes Requiring Intervention (failure of prosthesis or non-failures requiring intervention) observed over three years of recall examination. ..

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..This application represents an important step in this ongoing research initiative. ..

..Standardized hard and soft tissue data will be collected preextraction as baseline, and then prospectively for at least two years in this trial, to compare and contrast the methods. ..

..Type I microcracks directly contribute to the loosening of a femur stem constructs. Type II microcracks function as energy absorbers and thereby retard the loosening process. ..

..Overall, the principal investigator's ultimate objective is to improve the quality of LTC for our nation's elderly. ..

..abstract_text> ..