Survival of Hybrid Laminate Veneers using two different tooth preparation techniques: Randomized Clinical Trial

Abstract

The aim of this study was to evaluate the survival of laminate veneers constructed using a recent polymer-infiltrated ceramic network material following the aesthetic pre-evaluative temporary (APT) technique of tooth preparation in comparison to traditional technique. Six patients received 54 laminate veneers. They were divided into two equal groups (n=27) according to the technique of tooth preparation: group T: traditional technique and group A: aesthetic pre-evaluative temporary technique. VITA ENAMIC material was used for CAD/CAM construction of laminate veneers. Cementation was performed using a light cured resin cement. The laminate veneers were evaluated at baseline, after 3, 6 and 12 months according to the modified United States Public Health Service (USPHS) criteriea. The data was collected, tabulated and statistically analyzed. Secondary caries, endodontic complications, cracks and loss of retention were not noted in any laminate veneer. Extensive fractures were not detected in both study groups through the study period. There was a statistically significant decrease of color match criteria between the two groups at the 6 and 12 months recalls. Based on this study, both preparation techniques resulted in successful clinical performance. After 12 months, all the veneers in both groups showed no post-operative sensitivity and all patients were highly satisfied regarding their veneers. However, there was a deterioration in color match criteria through the study period in both study groups.

Two‐year evaluation of porcelain laminate veneers using FDI criteria

“…Peumans et al 13 reported a 10% incidence of secondary caries in lamina restorations at a 10‐year follow‐up study if the margin of the restoration was located on the composite filling instead of the tooth. Smielak et al 5 reported a 1% incidence of secondary caries and 2% endodontic problems at a 9‐year study and Karagözoğlu et al 16 did not detect secondary caries during the 24‐month follow‐up period. Similarly, in this clinical follow‐up study, no secondary caries, tooth fractures, or enamel cracks were observed in any restoration within a 2‐year period.…”

“…In addition, PLVs resist abrasion, can imitate the optical properties of enamel, and retain color stability. It has also been revealed in previous studies that PLVs have a high survival rate, with the most common reported complications being ceramic fracture, cracking, and marginal discoloration 5,12–16 …”

“…It has also been revealed in previous studies that PLVs have a high survival rate, with the most common reported complications being ceramic fracture, cracking, and marginal discoloration. 5,[12][13][14][15][16] Feldspathic porcelain and glass-ceramics are both indicated as being suitable for PLVs. 6 Feldspathic ceramic contains noncrystalline silica-based glass and potassium or sodium feldspar.…”

“…The new Fédération Dentaire Internationale (FDI) World Dental Federation clinical criteria were approved in 2007 for the clinical evaluation of fixed dental restorations and cover all details of successful restoration. 16,17 These criteria consist of three main sections (esthetics, functional, and biological properties) and each section has several items. Evaluation scores range from 1 to 5 with the first two indicating replacement or needing repair whereas the remaining three express that the restoration is acceptable.…”

Clinical survival of No-prep indirect composite laminate veneers: a 7-year prospective case series study

“…In this study, a halogen curing unit was used for luting the resin cement. Although there are studies using a halogen curing unit in the luting of resin cements [ 30 ], LEDs are more commonly used for luting veneers considering up-to-date clinical luting approaches [ 17 , 36 ]. Although low marginal adaptation scores were observed, the low bond strength of resin cements due to the use of halogen may be considered as a factor affecting marginal adaptation and as a reason for this result.…”