Optical Properties of Light Cured Luting Agent on Laminate Veneer

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2015-03-31

Study Completion Date

2018-03-31

Brief Summary

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The aim of this randomized clinical trial is to evaluate the influence of luting agent, thickness and color of laminate veneers (LVs) and color of dental substrate on the optical properties of LVs.

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Detailed Description

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The following date will be collected (i) the color of dental substrate obtained before and after dental preparation, (ii) the thickness and color of the LVs obtained before of the cementation procedures on white and black value background, (iii) and the final color of the LVs bonded to dental substrates obtained after cementation. For LVs cementation two cements will be used, the light-cured resin cement and the flowable composite, which will be randomly divided into two groups (n=31). The color of LVs will be performed with visual evaluation based on Vita and 3D Master scales and with a spectrophotometer Vita Easyshade (Vita Zahnfabrik / Bad Saeckingen, Germany) based on CIEL\*a\* b system. Data collected will be evaluated for translucency parameter (TP) and color variation (ΔE) according to luting agent, thickness and color of the LVs as well as color of dental substrate. Additionally, the color obtained with visual evaluation and with spectrophotometer will be compared to evaluate the level of agreement between the color observed by the operator and the color named by the spectrophotometer.

Conditions

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Optical Properties of Laminate Veneers

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Light-cured resin cement

Laminate veneers luted using light-cured resin cement

Group Type ACTIVE_COMPARATOR

Laminate veneers luted with light-cured resin cement

Intervention Type PROCEDURE

After the use of light-cured luting agent the color of laminate venners will be performed with visual evaluation based on Vita and 3D Master scales and with a spectrophotometer Vita Easyshade (Vita Zahnfabrik / Bad Saeckingen, Germany) based on CIEL\*a\* b system. Data collected will be evaluated for translucency parameter (TP) and color variation (ΔE) according to luting agent, thickness and color of the LVs as well as color of dental substrate. Additionally, the color obtained with visual evaluation and with spectrophotometer will be compared to evaluate the level of agreement between the color observed by the operator and the color named by the spectrophotometer.

Light-cured flowable composite

Laminate veneers luted using light-cured flowable composite

Group Type ACTIVE_COMPARATOR

Laminate veneers luted with light-cured flowable composite

Intervention Type PROCEDURE

After the use of light-cured luting agent the color of laminate veneers will be performed with visual evaluation based on Vita and 3D Master scales and with a spectrophotometer Vita Easyshade (Vita Zahnfabrik / Bad Saeckingen, Germany) based on CIEL\*a\* b system. Data collected will be evaluated for translucency parameter (TP) and color variation (ΔE) according to luting agent, thickness and color of the LVs as well as color of dental substrate. Additionally, the color obtained with visual evaluation and with spectrophotometer will be compared to evaluate the level of agreement between the color observed by the operator and the color named by the spectrophotometer.

Interventions

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Laminate veneers luted with light-cured resin cement

After the use of light-cured luting agent the color of laminate venners will be performed with visual evaluation based on Vita and 3D Master scales and with a spectrophotometer Vita Easyshade (Vita Zahnfabrik / Bad Saeckingen, Germany) based on CIEL\*a\* b system. Data collected will be evaluated for translucency parameter (TP) and color variation (ΔE) according to luting agent, thickness and color of the LVs as well as color of dental substrate. Additionally, the color obtained with visual evaluation and with spectrophotometer will be compared to evaluate the level of agreement between the color observed by the operator and the color named by the spectrophotometer.

Intervention Type PROCEDURE

Laminate veneers luted with light-cured flowable composite

After the use of light-cured luting agent the color of laminate veneers will be performed with visual evaluation based on Vita and 3D Master scales and with a spectrophotometer Vita Easyshade (Vita Zahnfabrik / Bad Saeckingen, Germany) based on CIEL\*a\* b system. Data collected will be evaluated for translucency parameter (TP) and color variation (ΔE) according to luting agent, thickness and color of the LVs as well as color of dental substrate. Additionally, the color obtained with visual evaluation and with spectrophotometer will be compared to evaluate the level of agreement between the color observed by the operator and the color named by the spectrophotometer.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Minimum 18 years of age
* Patients with diastema
* Conoid teeth
* Misaligned anterior teeth
* Discolored teeth and/or teeth with erosion/abrasion
* Posterior occlusal stability
* Individuals who are willing to attend the clinics on predetermined days, to agree to sign the consent form and clarified, after receiving information about the study objectives, risks and benefits associated with the procedures.

Exclusion Criteria

* Patients with extensive loss of tooth structure
* Subjects suffering from temporomandibular disorders, neurological and oral mucosa diseases
* Inadequate oral hygiene or periodontal problems
* Smokers

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes