Establishing a classification system and criteria for veneer preparations.

The concept of no- or minimal-preparation veneers is more than 25 years old, yet there is no classification system categorizing the extent of preparation for different veneer treatments. The lack of veneer preparation classifications creates misunderstanding and miscommunication with patients and within the dental profession. Such a system could be indicated in various clinical scenarios and would benefit dentists and patients, providing a guide for conservatively preparing and placing veneers. A classification system is proposed to divide preparation and veneering into reduction--referred to as space requirement, working thickness, or material room--volume of enamel remaining, and percentage of dentin exposed. Using this type of metric provides an accurate measurement system to quantify tooth structure removal, with preferably no reduction, on a case-by-case basis, dissolve uncertainty, and aid with multiple aspects of treatment planning and communication.

Minimum thickness anterior porcelain restorations.

Porcelain laminate veneers (PLVs) provide the dentist and the patient with an opportunity to enhance the patient's smile in a minimally to virtually noninvasive manner. Today's PLV demonstrates excellent clinical performance and as materials and techniques have evolved, the PLV has become one of the most predictable, most esthetic, and least invasive modalities of treatment. This article explores the latest porcelain materials and their use in minimum thickness restoration.

Ferulización con carillas de composite en pacientes con periodontitis moderada y avanzada: estética y función. Casos clínicos 2ª parte / Splinting with composite veneers in patients with moderate and advanced periodontal disease: aesthetic and function. Cases report. 2nd part

La ferulización en dientes periodontales es el tratamiento de elección en los casos en los que se pretende mejorar la estética y el conforta la masticación ocasionado por la movilidad dentaria, eliminando poco tejido, sin generar mayor sensibilidad y a un “coste muy razonable”. La ferulización con carillas de composite reúne todas estas características (AU)

The splinting in periodontal teeth is the treatment of choice in the cases where the aesthetics and comfort in chewing is intended to be improved by the dental mobility, eliminating little tissue, without generating greater sensitivity at a “very reasonable cost”. The splinting with composite veneers has all these characteristics (AU)

Choice of ceramic for use in treatments with porcelain laminate veneers.

Porcelain laminate veneers (PLVs) have been used for over two decades to treat esthetic and/or functional problems, particularly in the anterior sector. A range of dental ceramic materials are presently available on the market for these treatments, though with very different characteristics in terms of the composition, optic properties and manufacturing processes involved. As a result, selection of the material best suited for the management of each individual patient may prove complicated. The present study proposes a simple system for selecting the most appropriate ceramic material, based on the two variables that most influence the esthetic outcome: the intrinsic characteristics of the substrate tooth, and the characteristics of the ceramic material in terms of resistance and optic properties.

Selección de la ceramica a utilizar en tratamientos mediante frentes laminados de porcelana / Choice of ceramic for use in treatments with porcelain laminate veneers

El tratamiento mediante Frentes Laminados de Porcelana (FLP) se utiliza desde hace más de dos décadas para el tratamiento de problemas estéticos y/o funcionales, particularmente en el grupo anterior de las arcadas dentarias (1,2,3). La actual oferta en el mercado de cerámicas dentales aptas para este tipo de tratamiento, pero muy distintas en cuanto a composición, características ópticas y sistema de elaboración, hace complicada la selección del material más adecuado a cada paciente en particular. Proponemos un sistema sencillo de elección de la cerámica teniendo en cuenta las dos variables que más influirán en el resultado estético final: de un lado las características propias del diente (sustrato en el que nos apoyamos), y de otro las características propias del material cerámico en cuanto a resistencia y propiedades ópticas

Porcelain laminate veneers (PLVs) have been used for over two decades to treat esthetic and/or functional problems, particularly in the anterior sector (1-3). A range of dental ceramic materials are presently available on the market for these treatments, though with very different characteristics in terms of the composition, optic properties and manufacturing processes involved. As a result, selection of the material best suited for the management of each individual patient may prove complicated. The present study proposes a simple system for selecting the most appropriate ceramic material, based on the two variables that most influence the esthetic outcome: the intrinsic characteristics of the substrate tooth, and the characteristics of the ceramic material in terms of resistance and optic properties

Crowns and other extra-coronal restorations: preparations for full veneer crowns.

Preparations for full veneer crowns is the eighth in the series on crowns and other extra-coronal restorations. Whilst handpiece skills are important, many other factors combine to ensure provision of a satisfactory full veneer crown (also termed 'full coverage crown'). Our aim in writing this article is to consider the principles which influence crown preparation, seasoned with clinical advice our undergraduate and postgraduate students have found useful.

Direct restoration of anterior teeth: review of the clinical technique and case presentation.

Direct composite resin bonding procedures are growing in popularity as conservative and predictable restorative treatment alternatives. An understanding of the fundamental layering, contouring, and polishing principles is paramount to the success of any direct composite restoration; this awareness can be subsequently applied to indirect restorations and significantly enhance laboratory/clinician communication. This article presents a clinical technique that describes the incremental placement of direct resin veneers on a typodont and demonstrates the application of these procedures on an actual clinical case.

Coronas de ceramica pura o vitroceramicas / Crowns of dental ceramics pure or glassceramic

Cuando el odontologo realiza una restauracion, cualquiera sea su tipo, siempre se persigue el mismo fin: que esta sea resistente, duradera, funcional y estetica. Cuando se trata de elementos anteriores, la estetica adquiere un plano preponderante, pues sera seguramente la primera inquietud o exigencia que nos expresara el paciente. Frecuentemente, los profesionales nos familiarizamos con un determinado sistema para la confeccion de nuestras restauraciones coronarias, pero este no siempre es el indicado o el adecuado para determinadas situaciones clinicas. Es por ello que el profesional debe conocer y aplicar las diferentes alternativas de tratamiento para adecuarlas e implementarlas en las distintas exigencias clinicas. Este articulo es una recopilacion y descripcion de los sistemas para la confeccion de restauraciones coronarias totalmente ceramicas.

Coronas de ceramica pura o vitroceramicas / Crowns of dental ceramics pure or glassceramic

Cuando el odontologo realiza una restauracion, cualquiera sea su tipo, siempre se persigue el mismo fin: que esta sea resistente, duradera, funcional y estetica. Cuando se trata de elementos anteriores, la estetica adquiere un plano preponderante, pues sera seguramente la primera inquietud o exigencia que nos expresara el paciente. Frecuentemente, los profesionales nos familiarizamos con un determinado sistema para la confeccion de nuestras restauraciones coronarias, pero este no siempre es el indicado o el adecuado para determinadas situaciones clinicas. Es por ello que el profesional debe conocer y aplicar las diferentes alternativas de tratamiento para adecuarlas e implementarlas en las distintas exigencias clinicas. Este articulo es una recopilacion y descripcion de los sistemas para la confeccion de restauraciones coronarias totalmente ceramicas. (AU)

Survival of three types of veneer restorations in a clinical trial: a 2.5-year interim evaluation.

OBJECTIVES: In this clinical trial, 180 veneer restorations (VRs) were evaluated. The purpose of the study was to collect survival data and to find possible relations between survival and (1) 'type of VR', (2) 'preparation design', (3) 'operator' and (4) the patient-related variables 'tooth-type' and 'vitality of the tooth'. METHODS: The restorations were provided by seven dentists in 1 12 patients on central and lateral maxillary incisors. Experimental variables were: 'type of VR' (either direct resin composite (DC), indirect resin composite (IC) or porcelain (P)), 'preparation design' (with and without incisal overlap) and 'operator'. Failures were recorded at two levels: absolute failure (need for new restoration) and relative failure (need for repair). Survival was defined at three levels: (1) survival of original restoration (Sr, endpoints: 'absolute' failures), (2) functional survival (Sf, endpoints: 'relative' failures) and (3) overall survival (SO, endpoints: both 'absolute-' and 'relative failures'). RESULTS: The variable 'type of VR' showed significant influence on Sf and So but not on Sr. Sf and So rates of P, IC and DC were, respectively: Sf-P, 94%; So-P, 94%; Sf-IC, 94%; So-IC, 90%; Sf-DC, 80%; So-DC, 74%. VRs on vital teeth showed a significantly better survival than VRs on non-vital teeth at all survival levels. CONCLUSIONS: Preparation of the incisal edge for incisal coverage is considered to be unnecessary to assure or improve the strength of VRs. Veneers on non-vital teeth showed higher risk to fail than veneers placed on vital teeth. Porcelain veneers showed the best overall survival.