Fatigue Failure Load of Lithium Disilicate Restorations Cemented on a Chairside Titanium-Base

Peerapat Kaweewongprasert, Kamolphob Phasuk, John A. Levon, George J. Eckert, Sabrina Feitosa, Luiz F. Valandro, Marco C. Bottino, Dean Morton

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Purpose: To evaluate the fatigue failure load of distinct lithium disilicate restoration designs cemented on a chairside titanium base for maxillary anterior implant-supported restorations. Materials and Methods: A left-maxillary incisor restoration was virtually designed and sorted into 3 groups: (n = 10/group; CTD: lithium disilicate crowns cemented on custom-milled titanium abutments; VMLD: monolithic full-contour lithium disilicate crowns cemented on a chairside titanium-base; VCLD: lithium disilicate crowns bonded to lithium disilicate customized anatomic structures and then cemented onto a chairside titanium base). The chairside titanium base was air-abraded with aluminum oxide particles. Subsequently, the titanium base was steam-cleaned and air-dried. Then a thin coat of a silane agent was applied. The intaglio surface of the ceramic components was treated with 5% hydrofluoric acid (HF) etching gel, followed by silanization, and bonded with a resin cement. The specimens were fatigued at 20 Hz, starting with a 100 N load (5000× load pulses), followed by stepwise loading from 400 N up to 1400 N (200 N increments) at a maximum of 30,000 cycles each. The failure loads, number of cycles, and fracture analysis were recorded. The data were statistically analyzed using one-way ANOVA, followed by pairwise comparisons (p < 0.05). Kaplan-Meier survival plots and Weibull survival analyses were reported. Results: For catastrophic fatigue failure load and the total number of cycles for failure, VMLD (1260 N, 175,231 cycles) was significantly higher than VCLD (1080 N, 139,965 cycles) and CDT (1000 N, 133,185 cycles). VMLD had a higher Weibull modulus demonstrating greater structural reliability. Conclusion: VMLD had the best fatigue failure resistance when compared with the other two groups.

Original languageEnglish (US)
JournalJournal of Prosthodontics
DOIs
StateAccepted/In press - Jan 1 2018
Externally publishedYes

Fingerprint

Titanium
Fatigue
Crowns
Air
Resin Cements
Hydrofluoric Acid
Silanes
Aluminum Oxide
Steam
Ceramics
Incisor
Survival Analysis
lithia disilicate
Analysis of Variance
Gels

Keywords

  • Abutment fatigue
  • CAD/CAM
  • Implant
  • Lithium disilicate
  • Stepwise
  • Titanium

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Kaweewongprasert, P., Phasuk, K., Levon, J. A., Eckert, G. J., Feitosa, S., Valandro, L. F., ... Morton, D. (Accepted/In press). Fatigue Failure Load of Lithium Disilicate Restorations Cemented on a Chairside Titanium-Base. Journal of Prosthodontics. https://doi.org/10.1111/jopr.12911

Fatigue Failure Load of Lithium Disilicate Restorations Cemented on a Chairside Titanium-Base. / Kaweewongprasert, Peerapat; Phasuk, Kamolphob; Levon, John A.; Eckert, George J.; Feitosa, Sabrina; Valandro, Luiz F.; Bottino, Marco C.; Morton, Dean.

In: Journal of Prosthodontics, 01.01.2018.

Research output: Contribution to journalArticle

Kaweewongprasert, Peerapat ; Phasuk, Kamolphob ; Levon, John A. ; Eckert, George J. ; Feitosa, Sabrina ; Valandro, Luiz F. ; Bottino, Marco C. ; Morton, Dean. / Fatigue Failure Load of Lithium Disilicate Restorations Cemented on a Chairside Titanium-Base. In: Journal of Prosthodontics. 2018.
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abstract = "Purpose: To evaluate the fatigue failure load of distinct lithium disilicate restoration designs cemented on a chairside titanium base for maxillary anterior implant-supported restorations. Materials and Methods: A left-maxillary incisor restoration was virtually designed and sorted into 3 groups: (n = 10/group; CTD: lithium disilicate crowns cemented on custom-milled titanium abutments; VMLD: monolithic full-contour lithium disilicate crowns cemented on a chairside titanium-base; VCLD: lithium disilicate crowns bonded to lithium disilicate customized anatomic structures and then cemented onto a chairside titanium base). The chairside titanium base was air-abraded with aluminum oxide particles. Subsequently, the titanium base was steam-cleaned and air-dried. Then a thin coat of a silane agent was applied. The intaglio surface of the ceramic components was treated with 5{\%} hydrofluoric acid (HF) etching gel, followed by silanization, and bonded with a resin cement. The specimens were fatigued at 20 Hz, starting with a 100 N load (5000× load pulses), followed by stepwise loading from 400 N up to 1400 N (200 N increments) at a maximum of 30,000 cycles each. The failure loads, number of cycles, and fracture analysis were recorded. The data were statistically analyzed using one-way ANOVA, followed by pairwise comparisons (p < 0.05). Kaplan-Meier survival plots and Weibull survival analyses were reported. Results: For catastrophic fatigue failure load and the total number of cycles for failure, VMLD (1260 N, 175,231 cycles) was significantly higher than VCLD (1080 N, 139,965 cycles) and CDT (1000 N, 133,185 cycles). VMLD had a higher Weibull modulus demonstrating greater structural reliability. Conclusion: VMLD had the best fatigue failure resistance when compared with the other two groups.",
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AU - Kaweewongprasert, Peerapat

AU - Phasuk, Kamolphob

AU - Levon, John A.

AU - Eckert, George J.

AU - Feitosa, Sabrina

AU - Valandro, Luiz F.

AU - Bottino, Marco C.

AU - Morton, Dean

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N2 - Purpose: To evaluate the fatigue failure load of distinct lithium disilicate restoration designs cemented on a chairside titanium base for maxillary anterior implant-supported restorations. Materials and Methods: A left-maxillary incisor restoration was virtually designed and sorted into 3 groups: (n = 10/group; CTD: lithium disilicate crowns cemented on custom-milled titanium abutments; VMLD: monolithic full-contour lithium disilicate crowns cemented on a chairside titanium-base; VCLD: lithium disilicate crowns bonded to lithium disilicate customized anatomic structures and then cemented onto a chairside titanium base). The chairside titanium base was air-abraded with aluminum oxide particles. Subsequently, the titanium base was steam-cleaned and air-dried. Then a thin coat of a silane agent was applied. The intaglio surface of the ceramic components was treated with 5% hydrofluoric acid (HF) etching gel, followed by silanization, and bonded with a resin cement. The specimens were fatigued at 20 Hz, starting with a 100 N load (5000× load pulses), followed by stepwise loading from 400 N up to 1400 N (200 N increments) at a maximum of 30,000 cycles each. The failure loads, number of cycles, and fracture analysis were recorded. The data were statistically analyzed using one-way ANOVA, followed by pairwise comparisons (p < 0.05). Kaplan-Meier survival plots and Weibull survival analyses were reported. Results: For catastrophic fatigue failure load and the total number of cycles for failure, VMLD (1260 N, 175,231 cycles) was significantly higher than VCLD (1080 N, 139,965 cycles) and CDT (1000 N, 133,185 cycles). VMLD had a higher Weibull modulus demonstrating greater structural reliability. Conclusion: VMLD had the best fatigue failure resistance when compared with the other two groups.

AB - Purpose: To evaluate the fatigue failure load of distinct lithium disilicate restoration designs cemented on a chairside titanium base for maxillary anterior implant-supported restorations. Materials and Methods: A left-maxillary incisor restoration was virtually designed and sorted into 3 groups: (n = 10/group; CTD: lithium disilicate crowns cemented on custom-milled titanium abutments; VMLD: monolithic full-contour lithium disilicate crowns cemented on a chairside titanium-base; VCLD: lithium disilicate crowns bonded to lithium disilicate customized anatomic structures and then cemented onto a chairside titanium base). The chairside titanium base was air-abraded with aluminum oxide particles. Subsequently, the titanium base was steam-cleaned and air-dried. Then a thin coat of a silane agent was applied. The intaglio surface of the ceramic components was treated with 5% hydrofluoric acid (HF) etching gel, followed by silanization, and bonded with a resin cement. The specimens were fatigued at 20 Hz, starting with a 100 N load (5000× load pulses), followed by stepwise loading from 400 N up to 1400 N (200 N increments) at a maximum of 30,000 cycles each. The failure loads, number of cycles, and fracture analysis were recorded. The data were statistically analyzed using one-way ANOVA, followed by pairwise comparisons (p < 0.05). Kaplan-Meier survival plots and Weibull survival analyses were reported. Results: For catastrophic fatigue failure load and the total number of cycles for failure, VMLD (1260 N, 175,231 cycles) was significantly higher than VCLD (1080 N, 139,965 cycles) and CDT (1000 N, 133,185 cycles). VMLD had a higher Weibull modulus demonstrating greater structural reliability. Conclusion: VMLD had the best fatigue failure resistance when compared with the other two groups.

KW - Abutment fatigue

KW - CAD/CAM

KW - Implant

KW - Lithium disilicate

KW - Stepwise

KW - Titanium

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