Influence of autoclave sterilization on bond strength between zirconia frameworks and Ti-base abutments using different resin cements

Lang, Reinhold W.; Hiller, Karl‐Anton; Kienböck, Lena; Friedl, Karl‐Heinz

doi:10.1016/j.prosdent.2022.01.028

Cited by 10 publications

(9 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…titanium or titanium nitride) can be safely autoclaved without compromising their material properties, 15 sterilization of monotype ceramic or hybrid abutments under moist heat and pressure may lead to permanent damage to the crystal-ceramic framework (degradation) or to the adhesive bond of hybrid abutments and is therefore controversially discussed. 16 17 18 19 In addition, it should be noted that the physical process of sterilization by autoclaving using a combination of appropriate heat and pressure is able to kill all viable forms of microbiota, but it cannot effectively remove particulate debris from CAD-CAM abutments. The reprocessing of implant abutments by steam cleaning in the laboratory (vaporization), although frequently employed, is an ineffective method and fails to achieve the normatively required efficacy of disinfection (DIN EN 14885:2018).…”

Section: Introductionmentioning

confidence: 99%

Microbiological cleaning and disinfection efficacy of a three-stage ultrasonic processing protocol for CAD-CAM implant abutments

Gehrke

Riebe²,

Fischer³

et al. 2022

J Adv Prosthodont

View full text Add to dashboard Cite

PURPOSE Computer-aided design and manufacturing (CAD-CAM) of implant abutments has been shown to result in surface contamination from site-specific milling and fabrication processes. If not removed, these contaminants can have a potentially adverse effect and may trigger inflammatory responses of the peri-implant tissues. The aim of the present study was to evaluate the bacterial disinfection and cleaning efficacy of ultrasonic reprocessing in approved disinfectants to reduce the microbial load of CAD-CAM abutments. MATERIALS AND METHODS Four different types of custom implant abutments (total N = 32) with eight specimens in each test group (type I to IV) were CAD-CAM manufactured. In two separate contamination experiments, specimens were contaminated with heparinized sheep blood alone and with heparinized sheep blood and the test bacterium Enterococcus faecium. Abutments in the test group were processed according to a three-stage ultrasonic protocol and assessed qualitatively and quantitatively by determination of residual protein. Ultrasonicated specimens contaminated with sheep blood and E. faecium were additionally eluted and the dilutions were incubated on agar plates for seven days. The determined bacterial counts were expressed as colony-forming units (CFU). RESULTS Ultrasonic reprocessing resulted in a substantial decrease in residual bacterial protein to less than 80 µg and a reduction in microbiota of more than 7 log levels of CFU for all abutment types, exceeding the effect required for disinfection. CONCLUSION A three-stage ultrasonic cleaning and disinfection protocol results in effective bacterial decontamination. The procedure is reproducible and complies with the standardized reprocessing and disinfection specifications for one- or two-piece CAD-CAM implant abutments.

show abstract

Section: Introductionmentioning

confidence: 99%

Microbiological cleaning and disinfection efficacy of a three-stage ultrasonic processing protocol for CAD-CAM implant abutments

Gehrke

Riebe²,

Fischer³

et al. 2022

J Adv Prosthodont

View full text Add to dashboard Cite

show abstract

“…Considering that a standardized cementation procedure was followed for all patients in the present study, the authors believe that patient‐ or prosthesis‐related biomechanical factors may have contributed to decementation complication seen with these patients. Even though a commonly used dual‐polymerizing composite resin cement was utilized in the present study, a recent in vitro study emphasized that an autopolymerizing composite resin cement should be considered as the first option for extraoral cementation of zirconia frameworks to ti‐base abutments as its use resulted in the highest bond strength values after autoclaving, thermocycling, and standardized bond strength testing 45 . Different cements may reveal different clinical outcomes.…”

Section: Discussionmentioning

confidence: 99%

Prosthetic complications with monolithic or micro‐veneered implant‐supported zirconia single‐unit, multiple‐unit, and complete‐arch prostheses on titanium base abutments: A single center retrospective study with mean follow‐up period of 72.35 months

Saponaro

Karasan

Dönmez

et al. 2022

Clin Implant Dent Rel Res

View full text Add to dashboard Cite

Background:The influence of prosthetic design on prosthetic complications when monolithic or micro-veneered zirconia prostheses are supported with titanium base (ti-base) abutments is not well-known.Purpose: The purpose of this single center, retrospective study was to assess the prevalence of prosthetic complications with monolithic or micro-veneered singleunit, multi-unit, and complete-arch zirconia prostheses supported with ti-base abutments (implant level or multi-unit abutment level).Material and Methods: This study retrospectively evaluated the electronic health record (EHR) of participants who received either monolithic or micro-veneered implant-supported single-unit, multi-unit, and/or complete-arch prostheses supported by ti-base or zirconia-ti-base hybrid abutments delivered between the years 2010 and 2021. Data were analyzed by using logistic regression and Exact Mantel-Haenszel chi-square test (α = 0.05) to assess the clinical performance of prostheses and complications including crown decementation, feldspathic porcelain chipping, prosthesis fracture, zirconia-ti-base hybrid abutment decementation, abutment screw loosening, screw fracture, abutment fracture, implant loss, and prosthesis remake. Results:The study included 94 participants (50 female, 44 male) with a mean age of 59.5 years (range: 24-101 years of age). The retrospective EHR evaluation yielded 82 single-unit, 51 multi-unit, and 20 complete-arch prostheses on 325 implants. Among 153 prostheses delivered, 108 were micro-veneered (47 single-unit, 41 multiunit, and 20 complete-arch prostheses) and 45 were monolithic. The average duration was 72.35 months (6.02 years) with a follow-up period of 5-132 months. From the time of insertion to the time of EHR review, of 153 prostheses, 78.43% did not exhibit any prosthetic complication. However, 33 prostheses (21.57%) from 29 participants (30.85%) had at least one prosthetic complication. Only four patients (4.25%) experienced two or more prosthetic complications. Prosthetic design affected the

show abstract

“…Several studies have investigated the effect of surface pretreatments, cleaning procedures, and sterilization protocols, on the bonding interface and retention force of the bond between zirconia implant crowns and Ti‐base abutments (Bergamo et al., 2021; Behr et al., 2020; Fadanelli et al., 2017; Lang et al., 2022; Mayinger et al., 2019; Pils et al., 2019; Türker et al., 2020). However, evidence is still lacking regarding the effect of these procedures on the bond strength of other ceramic implant crown materials, such as lithium disilicate (LD) or hybrid ceramics like the polymer‐infiltrated ceramic‐network material (PICN) bonded to Ti‐base abutments with different resin composite cements.…”

Section: Introductionmentioning

confidence: 99%

Influence of sterilization on the retention forces of lithium disilicate and polymer‐infiltrated ceramic‐network crowns bonded to titanium base abutments: An in‐vitro study

Laforì,

Sailer,

Fehmer

et al. 2024

Clinical Oral Implants Res

View full text Add to dashboard Cite

ObjectivesThe aim of this study was to evaluate the effect of sterilization on the retention forces of lithium disilicate (LD) and polymer‐infiltrated ceramic network (PICN) crowns bonded to titanium base (Ti‐base) abutments.Materials and methodsForty LD and 40 PICN crowns were milled and then bonded to 80 Ti‐bases with two resin composite cements: Multilink Hybrid Abutment (mh) and Panavia V5 (pv) for a total of 8 groups (n = 10). Half of the specimens (test) underwent an autoclaving protocol (pressure 1.1 bar, 121°C, 20.5 min) and the other half not (control). Restorations were screw‐retained to implants, and retention forces (N) were measured with a pull‐off testing machine. The surfaces of the Ti‐bases and the crowns were inspected for the analysis of the integrity of the marginal bonding interface and failure mode. Student's t‐test, chi‐square test, and univariate linear regression model were performed to analyze the data (α = 0.05).ResultsThe mean pull‐off retention forces ranged from 487.7 ± 73.4 N to 742.2 ± 150.3 N. Sterilized groups showed statistically significant overall higher maximum retention forces (p < .05), except for one combination (LD + mh). Sterilization led to an increased presence of marginal gaps and deformities compared to no‐sterilization (p < .001), while no statistically significant relationship was found between failure mode and sterilization (p > .05).ConclusionsSterilization may have a beneficial effect on the retention forces of LD and PICN crowns bonded to titanium base abutments, although it may negatively influence the integrity of the marginal bonding interface.

show abstract

Influence of autoclave sterilization on bond strength between zirconia frameworks and Ti-base abutments using different resin cements

Cited by 10 publications

References 37 publications

Microbiological cleaning and disinfection efficacy of a three-stage ultrasonic processing protocol for CAD-CAM implant abutments

Microbiological cleaning and disinfection efficacy of a three-stage ultrasonic processing protocol for CAD-CAM implant abutments

Prosthetic complications with monolithic or micro‐veneered implant‐supported zirconia single‐unit, multiple‐unit, and complete‐arch prostheses on titanium base abutments: A single center retrospective study with mean follow‐up period of 72.35 months

Influence of sterilization on the retention forces of lithium disilicate and polymer‐infiltrated ceramic‐network crowns bonded to titanium base abutments: An in‐vitro study

Contact Info

Product

Resources

About