Direct Laminate Veneer Research Articles

Direct composite veneers -restoring esthetics by procuring patient demand: a case report

Re-establishing a patient’s lost dental esthetic appearance is one of the most important topics for contemporary dentistry. New treatment materials and methods have been coming on the scene, day by day, in order to achieve such an aim. Most dentists prefer more conservative and aesthetic approaches, such as direct and indirect laminate veneer restorations, instead of full-ceramic crowns for anteriors where aesthetics is really important. Laminate veneers are restorations which are envisioned to correct existing abnormalities, esthetic deficiencies and discolorations. Laminate veneer restorations may be processed in two different ways: direct or indirect. Direct laminate veneers have no need to be prepared in the laboratory and are based on the principle of application of a composite material directly to the prepared tooth surface in the dental clinic. Indirect laminate veneers may be produced from composite materials or ceramics, which are cemented to the tooth with an adhesive resin. In this case report, direct composite laminate veneer technique used for patients with esthetic problems is described and six-month follow-up are discussed. As a conclusion, direct laminate veneer restorations may be a treatment option for patients with the esthetic problems of anterior teeth in case similar to those reported here.

Providing Aesthetic by Direct Laminate Veneer Restorations of Three Patients with Enamel Defects at Anterior Region

One of the most important aspects of modern dentistry is the restoration of the lost dental aesthetic of the patient Over the years new treatment materials and methods for this purpose have emerged Dentists generally prefer more conservative approaches such as laminate veneers instead of full ceramic crowns in anterior restorations where aesthetic is important Laminate veneers applied by two different methods direct and indirect are used to correct existing abnormalities colorations and aesthetic defects Direct composite laminate veneers based on the direct application of the composite resin in the clinic which do not require a laboratory stage are preferred due to their convenient cost and single seance finish

Direct Conservative Esthetic Restoration - A Case Report

Rehabilitation of lost dental aesthetic is one of the most important concerns for contemporary dentistry. Conservative treatment modality along with aesthetic approaches, such as direct and indirect laminate veneer restorations were the treatment of choice. Laminate veneers are restorations to correct aesthetic deficiencies and discolorations. Direct laminate veneers involve the application of a composite material directly to the prepared tooth surface. This case report discusses the composite mirroring using direct composite laminate veneer technique application to the re-established the aesthetic problems related to discolorations in anterior region.

The Effect of Dental Adhesive on Final Color Match of Direct Laminate Veneer (DLV): In Vitro Study.

To evaluate the influence of dental adhesive on the color match of direct laminate veneer. Specimens were prepared in the form of discs. B1 nano-filled composite Filtek Z-350 XT (3M-ESPE) and single-bond universal adhesive were used. Twenty discs of each test group with a diameter of 10 ± 0.1 mm and thickness of 0.7 ± 0.1 mm were prepared. The specimens were divided into three groups: control group that has composite material only (C), a group that has adhesive with composite material (AC), and a group that has adhesive with composite and re-bonding technique (ACR). The samples were placed in viewing port for color measurement. Spectrophotometer was used in this study. Descriptive statistical analysis was performed for the CIE L*, a*, and b* values. Statistical software IBM SPSS 16.0 was used for analyzing the data, with a significance level of 0.05 (p < 0.05). In this study, both groups where bonding agent was applied had significant change in color of the samples (p < 0.05). AC and ACR showed a change along the "a" coordinate and the "b" coordinate with using adhesive and re-bonding technique. There were significant differences when comparing the values of a* and b* of the control group C with AC group and ACR on using adhesive and re-bonding technique. ACR specimens presented the lowest "L" value. Within the limitations of this study, despite the fact that the change of color is not extensive, the dental adhesive changes the color of direct composite restoration in a way that may warrant caution. Additional studies are essential to substantiate the findings of this study. Dental adhesive play an important role in changing the color of direct composite restoration.

Direct composite laminate veneers: three case reports.

Re-establishing a patient’s lost dental esthetic appearance is one of the most important topics for contemporary dentistry. New treatment materials and methods have been coming on the scene, day by day, in order to achieve such an aim. Most dentists prefer more conservative and aesthetic approaches, such as direct and indirect laminate veneer restorations, instead of full-ceramic crowns for anteriors where aesthetics is really important. Laminate veneers are restorations which are envisioned to correct existing abnormalities, esthetic deficiencies and discolo-rations. Laminate veneer restorations may be processed in two different ways: direct or indirect. Direct laminate veneers have no need to be prepared in the laboratory and are based on the principle of application of a composite material directly to the prepared tooth surface in the dental clinic. Indirect laminate veneers may be produced from composite materials or ceramics, which are cemented to the tooth with an adhesive resin. In this case report, direct composite laminate veneer technique used for three patients with esthetic problems related to fractures, discolorations and an old prolapsed restoration, is described and six-month follow-ups are discussed. As a conclusion, direct laminate veneer restorations may be a treatment option for patients with the esthetic problems of anterior teeth in cases similar to those reported here.

Randomized controlled split-mouth clinical trial of direct laminate veneers with two micro-hybrid resin composites

ObjectivesThis randomized, split-mouth clinical study evaluated the survival rate of direct laminate veneers made of two resin-composite materials. MethodsA total of 23 patients (mean age: 52.4 years old) received 96 direct composite laminate veneers using two micro-hybrid composites in combination with two adhesive resins (Ena-Bond-Enamel HFO: n=48, Clearfil SE Bond-Miris2: n=48). Enamel was selectively etched with 38% H3PO4 for 30s, rinsed 30s and the corresponding adhesive resin was applied accordingly. Existing resin composite restorations in good conditions (small or big) were not removed but conditioned using silica coating (CoJet) and silanized (ESPE-Sil). Restorations were evaluated at baseline and thereafter every 6 months. Additional qualitative analysis was performed using modified USPHS criteria. ResultsMean observation period was 41.3 months. Altogether, 12 absolute failures were observed [survival rate: 87.5%] (Kaplan–Meier). The survival rates with the two resin composites did not show significant differences [Enamel HFO: 81.2%, Miris2: 93.8%] (p>0.05). The presence of existing composite restorations on the prepared teeth did not affect the survival rate significantly (intact teeth: 100%, small restorations: 90.6%, big restorations: 82.7%) (p>0.05). Surface roughness and marginal discolouration were the main qualitative deteriorations observed until the final recall. Secondary caries and endodontic complications did not occur in any of the teeth. ConclusionEarly findings of this clinical study with the two micro-hybrid composite laminate veneers showed similar survival rate and their clinical performance was not significantly influenced when bonded onto intact teeth or onto teeth with existing restorations with the protocol applied.

Direct Laminate Veneers with Resin Composites: Two Case Reports with Five-Year Follow-ups

The aim of this report is to present five-year follow-ups of two different applications for the use of direct laminate resin-based composite veneers to improve esthetics. Defects in the maxillary anterior teeth, such as enamel hypoplasia and peg lateral, can present esthetic challenges. Furthermore, a treatment plan that can be completed in a single appointment is highly desirable. This case report presents two different clinical cases involving the use of direct laminate resin-based composite veneers with five-year follow-ups. Case 1: A 17-year-old female patient was referred for treatment of her anterior teeth, which were unesthetically altered due to enamel hypoplasia and dental caries. A treatment plan was developed that included restoring the affected teeth with direct resin-based composite laminate veneers to improve the patient's appearance. The six maxillary anterior teeth were prepared for and restored with direct resin-based composite laminate veneers. At the five-year follow-up, the patient was satisfied with the restorations both esthetically and functionally. Case 2: A 15-year-old female patient also was referred for treatment to improve the appearance of her maxillary anterior teeth. A treatment plan was developed with two objectives: (1) to restore the undersized supernumerary crown in the area of the maxillary right lateral incisor and (2) to close the anterior diastemas. The facial surfaces were conservatively prepared and resin-based composite was applied with the aid of transparent crown forms. After completion of the treatment, the patient was recalled at six-month intervals. At the five-year follow-up appointment, the restorations were intact, no adverse effects were noted, and the resultant appearance was highly satisfactory for the patient. The use of direct resin-based composite laminate veneers and adhesive bonding systems has been shown to provide an esthetic alternative to metal-ceramic or all-ceramic crowns for the rehabilitation of anterior teeth. This treatment option offers another advantage, namely a lower cost compared to an indirect technique. Other more complex and costly treatment options in the future are not ruled out. In the present two cases, the initial and five-year follow-up results support the use of direct resin-based composite laminate veneers with minimal altering of healthy tooth structure. Such results should encourage clinicians to seek a cost-effective technique such as direct resin restorations to improve a patient's esthetic appearance in a single appointment.

Fracture strength of direct versus indirect laminates with and without fiber application at the cementation interface

Objectives This study compared the fracture strength of direct and indirect resin composite laminate veneers and evaluated the effect of a bidirectional E-glass woven fiber application at different locations at the cementation interface. Methods Standard preparations on canines ( N = 50, 10 per group) were made using a depth cutting bur (0.7 mm depth) designed for laminate veneer restorations. Forty indirect laminates using a highly filled polymeric material (Estenia) and 10 direct laminates (Quadrant Anterior Shine) were prepared according to the manufacturer's instructions. Bidirectional E-glass woven-fiber sheet (0.06 mm) (Everstick) was applied at different locations at the cementation interface. The control group received no fibers. The specimens were stored in water at 37 °C for 1 month prior to fracture testing performed in a universal testing machine where the load was applied from the incisal direction at 137° (1 mm/min). Results No significant differences were found between the five groups ( P > 0.01) (one-way ANOVA). While indirect laminate veneers showed mean fracture strength of 247 ± 47 N, direct laminate veneers revealed 239 ± 104 N. The use of E-glass fibers at the cementation interface at different locations did not increase the fracture strength significantly (286–313 N) ( P > 0.01). Failure analysis showed mainly cohesive fracture of the veneer restoration (20/50) and adhesive failure between the cementation interface and the laminate with fiber exposure (19/50) covering more than half of the restorations. Significance Direct and indirect resin composite laminate veneers showed comparable mean fracture strengths. The use of E-glass woven-fiber sheet at the cementation interface did not increase the fracture strength of the polymeric laminate veneers.

Application of Direct Laminate Veneer for Enamel Protection during Orthodontic Treatment: An In Vivo Evaluation

The aims of this study were to examine the enamel protective effect of a direct laminate veneer against acidic conditions, measure the amount of fluoride released from the veneer and which was taken up by the enamel, as well as evaluate the usefulness of the veneer for orthodontic treatment. First, a veneer was applied to rabbit incisors. Then, apart from using profile measurement microscope and electron probe microanalyzer to measure the roughness and fluoride concentration in the enamel of veneer-covered tooth surface, those of the uncovered adjacent tooth surface were measured too. It was found that the veneer protected the enamel surface from acidic conditions. Furthermore, fluoride ions were taken up by both the uncovered adjacent enamel area as well as by the covered area. These findings suggested that covering the enamel surface with a direct laminate veneer before bracket bonding might be a valuable means of tooth protection and caries prevention.