Masking ability of lithium disilicate and high-translucent zirconia with liner on colored substrates

Journal Title: IP Annals of Prosthodontics and Restorative Dentistry - Year 2017, Vol 3, Issue 3

Abstract

Introduction: Aim of this study was to examine the influence of material type, thickness, and substrate color on the masking ability of two ceramics over different substrates. Materials and Method: In total, 36 disc-shaped specimens (15 mm in diameter × 0.5- and 1.0-mm thicknesses) were fabricated from lithium disilicate glass ceramic (IPS e.max Press, n = 6), high-translucent zirconia (Lava Plus, n = 6), and high-translucent zirconia with liner material (Lava Plus/Liner, n = 6). Contrast ratios were measured over white and black substrates. Color differences were measured over different substrates: white, black, metal, and resin composite shades A2, A3, and C4. White and A2 substrates were used as reference groups. Contrast ratio and color difference values were analyzed with linear regression (P<0.05). Result: Contrast ratios in the IPS e.max Press group at 0.5 and 1.0 mm showed the highest values (0.73 ± 0.04 and 0.87 ± 0.01) when compared with those in the Lava Plus and Lava Plus/Liner groups. IPS e.max Press at both thicknesses showed the highest masking ability over various substrates. Higher contrast ratio and masking ability were significantly related to thicker material. Material type, thickness, and substrate were significantly related to masking ability. Conclusion: Ceramic type, thickness, and substrate color are strongly associated with contrast ratio and masking ability, both of which increase as thickness increases. Increased ceramic thickness could benefit masking ability. For improved masking ability, IPS e.max Press is recommended over Lava Plus and Lava Plus/Liner for the masking of dark substrates.

Authors and Affiliations

Chalermpol Leevailoj, Porak Sethakamnerd

Keywords

Related Articles

Prosthesis for mandibular guidance therapy – A case series

This article shows the importance of an intraoral guiding flange prosthesis in patients who have undergone resection of mandible due to an underlying pathology The case series show how the use of a guidance prosthesis ca...

Conservative Rehabilitation of an Aesthetic Problem: Loop Connector

Rehabilitation of a patient with a missing anterior tooth is a challenging task. There are various treatment options which are available to restore the edentulous span, which includes removable partial denture, fixed par...

Silicone toe prosthesis using silicone rings as a mode of retention- A case report

Silicone cosmetic restorations allow people with toe amputations to wear a passive prosthesis that looks almost identical to their real toe These restorations appear so realistic that they are virtually unnoticed by othe...

Customized gunning splint for para sagittal palatal split with right alveolar fracture- A case report

Road accidents, industrial accidents and engaging in sporting activities are responsible for most fractures of the midface. A careful history, oral and facial examination and radiographs are imperative whenever any fract...

Oral rehabilitation of a parkinson disease patient: A case report

Parkinsonrsquos disease is a progressive neurologic disorder Compromised voluntary and involuntary control of the orofacialpharyngeal musculature of patients with Parkinsonrsquos disease may lead to difficulty in mastica...

Download PDF file
  • EP ID EP310517
  • DOI 10.18231/2455-8486.2017.0022
  • Views 70
  • Downloads 0

How To Cite

Chalermpol Leevailoj, Porak Sethakamnerd (2017). Masking ability of lithium disilicate and high-translucent zirconia with liner on colored substrates. IP Annals of Prosthodontics and Restorative Dentistry, 3(3), 94-100. https://europub.co.uk/articles/-A-310517