What is the Best Available Luting Agent for Implant Prosthesis?

Almehmadi, Nehal; Kutkut, Ahmad; Al‐Sabbagh, Mohanad

doi:10.1016/j.cden.2019.02.014

Cited by 15 publications

(20 citation statements)

References 64 publications

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“…Also, the combination of SB and self-adhesive cement increased the pullout retention of Y-TZP crowns to the same level of conventional adhesive cement, without surface pretreatment. Therefore, grit-blasting the Ti-base surface has effectively maximized the retention of the resin cement, mainly for conventional resin cement, and the combination of protocols may be clinically important to provide durable adhesive bonds, and, eventually improve implant-supported success rates through fewer reports of technical complications, such as retention loss [20][21][22]34].…”

Section: Discussionmentioning

confidence: 99%

“…Cementation is a critical procedure for implant-supported reconstructions as titanium and Y-TZP are commonly used interfaces that challenge conventional adhesive bonding due to the high opacity and inadequate photopolymerization, as well as, the inefficiency of common surface pretreatments on polycrystalline surfaces involving silica coating (up to 5% retention loss after 5 years) [1][2][3][4][5][20][21][22][23]. The bond strength of implant-supported prostheses has previously shown to be influenced by abutment material, height and convergence angle, prostheses adaptation, surface pretreatment, cement type, and cement degradation rate [23][24][25][26][27][28][29][30][31]; however, there is limited scientific evidence concerning the bonding behavior of different luting systems to hybrid Ti-base reconstructions [16,17,31].…”

Section: Introductionmentioning

confidence: 99%

“…Other possibilities to reasonably enhance adhesive bond strength of metal and Y-TZP consist of chemical and micromechanical surface pretreatments, including air particle abrasion and functional monomers coating (i.e. 10-methacryloyloxydecyl dihydrogen phosphate-MDP) [20][21][22][23]34].…”

Section: Introductionmentioning

confidence: 99%

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Retention of zirconia crowns to Ti-base abutments: effect of luting protocol, abutment treatment and autoclave sterilization.

et al. 2021

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Purpose: To evaluate the influence of resin cement type, surface pretreatment and autoclave sterilization on the retention of Y-TZP crowns to Ti-base abutments. Methods: Y-TZP crowns were designed and milled to fit Ti-base abutments. Crowns were cemented using either a conventional resin cement (conventional) with a universal adhesive or a self-adhesive resin cement (self-adhesive), both following no surface pretreatment (No) or Ti-base abutment sandblasting (SB) (n=20/group). Half of the cemented samples were subjected to in-office autoclave sterilization. Pullout testing was performed in a universal testing machine at a speed of 1 mm/min until crown displacement. Data were statistically evaluated through a linear mixed model following post hoc comparisons by LSD test. Results: Pullout data as a function of cement type demonstrated higher retention for conventional relative to self-adhesive cement (p<0.001). Tibase sandblasting (SB) favored crown retentiveness over No pretreatment (p<0.001). Sterilized crowns exhibited higher pullout values than nonsterile (p=0.036). All the two-and three-factor interaction analyses corroborated with the superior adhesive strength of conventional compared to self-adhesive cement (all, p<0.011), as well as, SB relative to No pretreatment (all, p<0.024). While autoclave sterilization maximized bond strength when self-adhesive cement (data collapsed over surface pretreatment, p<0.050) and No pretreatment were evaluated (data collapsed over surface pretreatment, p<0.013), no significant difference was observed for conventional resin cement (p=0.280) and SB (p=0.878) groups. Conclusions: Conventional resin cement and/or Ti-base sandblasting increased Y-TZP crown retentiveness, with no significant influence of autoclave sterilization. Autoclaving increased retentiveness when self-adhesive cement and/or no Ti-base pretreatment were used.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Retention of zirconia crowns to Ti-base abutments: effect of luting protocol, abutment treatment and autoclave sterilization.

et al. 2021

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“…Numerous physicochemical surface treatments and different cement types have always been attempted to acquire a successful long-term durable bond between zirconia and resin cements. [71][72][73][74] Regarding zirconia all-ceramic abutments, the retentive values of Zr CAD group (group I) showed statistically significant lower values than E.max CAD group (group III), but no statistically significant difference between Zr CAD group (group I) and PEEK CAD group (group IV) was found. Therefore, the second null hypothesis was partially accepted.…”

Section: Discussionmentioning

confidence: 99%

Effect of different fabrication materials and techniques on the retention of implant meso-structures to Ti-base abutments

El-Sayed

Elbanna

2021

Egyptian Dental Journal

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Objectives:The aim of this in-vitro study was to evaluate the effect of the material and the manufacturing technique on the retention of the meso-structure to the Ti-base after artificial thermocycling aging. Materials and Methods:Forty implant analogs compatible with the Noble Biocare Replace CC regular platform implant system (Dess, Spain) were used in this study to simulate the replacement of an upper second premolar. Implant analogues were placed in epoxy resin moulds. Ti-bases were screwed to the implant analogues. Ti-bases of different groups were scanned using CAD/ CAM scanner and the design of implant abutments was performed using CAD/CAM software. The abutment had two holes with 1 mm diameter in the mesial and distal surfaces to engage a stainlesssteel wire to facilitate the pull-out testing. The samples were divided into 5 equal groups (n=8) according to the material and technique of construction of the meso-structure as follows: Group I (Zr CAD): CAD/CAM milled zirconia abutments, Group II (E.max Press): Pressable lithium disilicate abutments with 3D printed resin pattern, Group III (E.max CAD): CAD/CAM milled lithium disilicate abutments, Group IV (PEEK CAD):CAD/CAM milled PEEK abutments, Group V (PEEK Press): 3D-printed resin pattern were fabricated and PEEK (BioHPP, Bredent, Germany) was directly pressed on the Ti-base using a thermal moulding machine (For 2 Press, Bredent, Germany) to fabricate the abutments. The samples of each group were surface treated and cemented to the respective Ti-bases according to the manufacturer's instructions of each material. All the samples were subjected to a total of 10,000 thermal cycles between 5°C and 55°C to simulate thermal fluctuations intraorally. All samples were subjected to pull-out retention test after thermal aging to separate the abutments from the Ti-base. After pull-out testing, the surfaces of the Tibases and the internal surfaces of the abutments were photographed under high magnification using digital camera to analyze the mode of failure.

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“…Therefore, we are interested in the analysis of fracture patterns and the fractography of these chairside CAD/CAM materials. In general, there is a difference that adhesion is used for teeth and cementation is used for titanium abutments [ 23 , 24 ]. However, few studies have compared this difference.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Mechanical Properties of Chairside CAD/CAM Restorations Fabricated Using a Standardization Method

et al. 2021

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The aim of this in vitro study was to investigate the fracture resistance, fracture failure pattern, and fractography of four types of chairside computer-aided design/computer-aided manufacturing (CAD/CAM) restoration materials in teeth and titanium abutments fabricated using a standardization method. An artificial mandibular left first premolar prepared for all-ceramic crown restoration was scanned. Forty extracted mandibular molars and cylindrical titanium specimens were milled into a standardized shape. A total of eighty CAD/CAM restoration blocks were milled into a crown and twenty pieces of each lithium disilicate (LS), polymer-infiltrated-ceramic-network (PICN), resin nano ceramic (RNC), and zirconia-reinforced lithium silicate (ZLS) materials were used. Crowns were bonded to abutments, and all specimens underwent thermal cycling treatment for 10,000 cycles. Fracture resistance was measured using a universal testing machine and fracture failure patterns were analyzed using optical microscopy and scanning electron microscopy. Statistical differences were analyzed using appropriate ANOVA, Tukey HSD post hoc tests, and independent sample t-tests (α = 0.05). The results indicated that, in both teeth abutments and titanium abutments, the fracture resistances showed significantly the highest values in LS and the second highest in ZLS (p < 0.05). The fracture resistances based on teeth abutments and titanium abutments were significantly different in all the CAD/CAM restoration materials (p < 0.05). There are statistically significant correlations between the types of materials and the types of abutments (p < 0.05). Each of the different materials showed different fracture failure patterns, and there was no noticeable difference in fractographic analysis. Lithium disilicates and zirconia-reinforced lithium silicates exhibited statistically high fracture resistance, indicating their suitability as restoration materials for natural teeth or implant abutments. There were no distinct differences in the fracture pattern based on the restoration and abutment materials showed that the fracture initiated at the groove where the ball indenter was toughed and propagated toward the axial wall.

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What is the Best Available Luting Agent for Implant Prosthesis?

Cited by 15 publications

References 64 publications

Retention of zirconia crowns to Ti-base abutments: effect of luting protocol, abutment treatment and autoclave sterilization.

Retention of zirconia crowns to Ti-base abutments: effect of luting protocol, abutment treatment and autoclave sterilization.

Effect of different fabrication materials and techniques on the retention of implant meso-structures to Ti-base abutments

Comparison of Mechanical Properties of Chairside CAD/CAM Restorations Fabricated Using a Standardization Method

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