A noninvasive esthetic treatment of isolated microdontia using new high-translucent cubic-phase zirconia (5Y-PSZ) laminate veneers: A case report

Abstract

Current trends in restorative dentistry focus on improving the esthetics and keeping the sound dental tissues as long as possible. The aims of this case report were to describe the successful outcome of cubic-phase zirconia laminate veneers for a patient with isolated microdontia by using a digital workflow, and to describe their clinical implications. A 15-year-old female who had isolated microdontia in combination with spacing visited Ajou University Dental Hospital for esthetic treatment. In this case, 6 maxillary anterior teeth were restored with cubic-phase zirconia laminate veneers without tooth structure removal by using a digital impression, computer-aided design (CAD) software, and computer-aided manufacturing (CAM) procedures. At 6-month follow-up, no distinct mechanical and biological complications were detected and the prostheses exhibited satisfactory esthetics and functions. Due to its favorable tissue responses and enhanced translucency, cubic-phase zirconia can be a suitable strategy for a noninva-

A 3‐year controlled clinical trial comparing high‐translucency zirconia (cubic zirconia) with lithium disilicate glass ceramic (e.max)

“…This agrees with Ozel and Aykor's study, in which it was found that there was no marginal discoloration of lithium disilicate crystal (e.max) veneers (Nejatidanesh et al, 2018 ). In addition, it agrees with Ahn et al ( 2019 ) who observed six anterior veneers for 6 months, and no deboning or staining was observed (Ahn et al, 2019 ). Contrastively, this study disagreed with Aslan's long‐term study, which traced 11.7% of marginal discoloration in lithium disilicate glass‐ceramic veneers (Aslan et al, 2019 ).…”

“…(2019) who observed six anterior veneers for 6 months, and no deboning or staining was observed (Ahn et al, 2019). Contrastively, this study disagreed with Aslan's long-term study, which traced 11.7% of marginal discoloration in lithium disilicate glass-ceramic veneers (Aslan et al, 2019).…”

Esthetic rehabilitation of dental fluorosis with CAD-CAM generated yttria-stabilized zirconia and glass-ceramic laminate veneers

“…38 The 5 mol% cubic phase zirconia is found to be more resistant to aging behavior than 3 mol% yttria-stabilized tetragonal zirconia (3Y-TZP). 44,45 5Y-PSZ can offers ultra-translucency that is similar or even higher than that of (LS2) ceramic. 44,46,47 Other studies have reported that lithium disilicate has higher levels of translucency than that of cubic-phase zirconia.…”

“…44,45 5Y-PSZ can offers ultra-translucency that is similar or even higher than that of (LS2) ceramic. 44,46,47 Other studies have reported that lithium disilicate has higher levels of translucency than that of cubic-phase zirconia. 44 Unfortunately, 5Y-PSZ lost a part of its toughening mechanism when acquiring translucency.…”

“…[39][40][41][42] Over time, monolithic full contour designs of zirconia have gained popularity over porcelain-veneered zirconia as they preserve more dental tissue allowing reduced prosthetic space. 43,44 The increasing of the yttria content (up to 5 mol%) and the replacement of certain tetragonal zirconia grains with cubic ones has led to diminish the light scattering and the birefringence at grain boundaries. 38 The 5 mol% cubic phase zirconia is found to be more resistant to aging behavior than 3 mol% yttria-stabilized tetragonal zirconia (3Y-TZP).…”