Analysis of Marginal Adaptation of Porcelain Laminate Veneers Produced by Computer-Aided Design/Computer-Assisted Manufacturing Technology: A Preliminary In Vitro Study

Pereira, Duziene Denardini; Marquezan, Mariana; Grossi, Márcio Lima; Oshima, Hugo Mitsuo Silva

doi:10.11607/ijp.5693

Cited by 8 publications

(21 citation statements)

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“…Our results were similar to other authors who found that the CAD/C/AM veneers with butt joint incisal reduction produced the most accurate margins with gap ˂ 100µm in the cervical, middle, and incisal thirds. While the least favorable combination was the pressable ceramic veneers with overlapped incisal reduction [16]. In addition, resin cement used might be effectively reduced the micro-leakage [17].…”

Section: Marginal Adaptationmentioning

confidence: 99%

One-year clinical evaluation of e.max CAD and LavaTM ultimate laminate veneers with butt joint preparation (Randomized controlled clinical trial)

Elgendi¹,

Rabie²,

Zaki³

2019

Med Res Innov

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The aim of this clinical study was to evaluate ceramic laminate veneers constructed from Lithium disilicate (IPS e.max CAD), and resin nano-ceramic (Lava Ultimate TM CAD/CAM) according to the modified United States of Public Health Service (USPHS) criteria over 12 months. Materials and methods: Twenty-eight ceramic laminate veneers (fourteen for each group) were placed in the Fixed Prosthodontics Department clinics, Faculty of Dentistry, Cairo University by one operator. The restorations were made using CEREC premium 4.4 CAD/CAM software with IPS e.max CAD and Lava Ultimate TM CAD/CAM blocks. Modified USPHS criteria were used to evaluate the clinical performance of the restorations. Patient satisfaction were assessed using visual analogue scale. Fisher's Exact test was used to compare between the two groups. Friedman's test was used to study the changes by time in each group. Patient satisfaction scores (VAS scores) were presented as median and range values.Results: Regrading marginal adaptation, retention, and fracture, through the whole study period; all restorations in the two groups showed (Alpha) scores. While for marginal discoloration, all surfaces of restorations in the two groups showed (Alpha) scores till 6 months. While after 8, 10 and 12 months; the palatal surface of Lava Ultimate group showed (Bravo) scores. However, there was no statistically significant difference between the two groups after 12 months (P-value = 0.481). The overall satisfaction of restorations was very satisfied by 85.7% and satisfied by 14.3%. Conclusion:Both IPS e.max CAD and Lava Ultimate laminate veneers revealed high successful clinical performance over a period of 12 months follow up.

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Section: Marginal Adaptationmentioning

confidence: 99%

One-year clinical evaluation of e.max CAD and LavaTM ultimate laminate veneers with butt joint preparation (Randomized controlled clinical trial)

Elgendi¹,

Rabie²,

Zaki³

2019

Med Res Innov

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“…One of the limitations is not considering possible differences in marginal and cervical regions of the veneer, since all scanned segments were located in the middle portion of a tooth. A small percentage of veneers show immaculate margin adaptation [63]; and, although veneer manufacturing techniques have evolved, in recent studies it is shown that cervical portion can still be more challenging in terms of adaptation [64]. It also has to be noted that polishing instruments work well on flat, easily accessible surfaces.…”

Section: Discussionmentioning

confidence: 99%

Resin Cement Residue Removal Techniques: In Vitro Analysis of Marginal Defects and Discoloration Intensity Using Micro-CT and Stereomicroscopy

et al. 2022

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The objective was to compare marginal defects and evaluate discoloration for adhesively cemented veneers in vitro when using two cement removal techniques. Twenty premolars were prepared with chamfer and borders in enamel. IPS e.max CAD veneers were cemented using Panavia V5 and divided in two groups (n = 10): cement excess removed with a probe after tack-curing for 3–5 s, or cement excess removed with a brush, then completely polymerized. All teeth were stored in alginate gel until micro-CT examination. Scanning was performed twice: directly after cementation and after thermocycling (5000 cycles, between 5 and 55 °C). To analyze discoloration, teeth were colored using 0.5% basic fuchsine and examined under a stereomicroscope. Depth of dye infiltration was scored 0 (no discoloration) to 5 (discoloration along the entire margin). Statistically significant differences of cement defects before thermocycling were reported, where brushing showed more defects than probing (p = 0.0161). After thermocycling, the defects increased for both groups. Extensive discoloration was the most common (55.56%) when removing excess by probing; by brushing, 90% of the specimens exhibited slight discoloration (p = 0.008). Regression analysis showed no relationship between type of defect and degree of discoloration. Removing cement with a brush causes more marginal defects, however less discoloration after thermocycling.

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“…Los nuevos avances en materiales dentales permiten fortalecer las cerámicas, que se caracterizan por ser materiales de restauración indirecta policristalinos que poseen cantidades considerables de feldespato, es decir, cerámicas feldespáticas; compuestas por sílice, litio, aluminio, sodio y potasio como el disilicato de litio, cuyos elementos protésicos se obtienen mediante termo prensado, tecnología CAD/CAM, estratificación o cut-back (4) . Obteniendo una gama de cerámicas dentales reforzadas estructuralmente o cerámicas vitrificadas que a su vez es nuestra elección por su porcentaje de supervivencia a 10 años y éxito en estética logrado en el sector anterior, imitando la naturalidad dental, debido a la similitud en sus propiedades ópticas (5) .…”

Section: Introductionunclassified

Rehabilitación mínimamente invasiva con carillas de porcelana: reporte de caso

Boada¹,

Tatés²,

Vega³

et al. 2019

Kiru

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RESUMENEl presente documento expone la rehabilitación estética dental en el sector anterior maxilar, recuperando las características de los dientes naturales color y forma, a través de, carillas y coronas cerámicas, consiguiendo mejorar la sonrisa en el rostro de la paciente. La intervención mediante procedimientos mínimamente invasivos como las carillas, recupera de forma rápida y con un mínimo margen de error la estética del paciente, sin embargo, un diagnóstico adecuado, planificación de los procesos a seguir, escuchar las necesidades del paciente y priorizarlas, constituye la clave del éxito alcanzado.Palabras clave: Atención odontológica integral; coronas con frente estético; estética dental; porcelana dental; tratamiento conservador. (Fuente: DeCS BIREME) ABSTRACTThe present document exposes the aesthetic dental rehabilitation in the anterior dental sector, recovering the characteristics of natural teeth as color and shape, through ceramic veneers and crowns, getting improve the smile in the face of patient. The intervention by minimally invasive procedures as veneers, recover quickly and with minimum error margin the patient's aesthetics, however, an adequate diagnosis, planning processes, listen the patient's needs and prioritize them, constitute the key to success achieved.

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Analysis of Marginal Adaptation of Porcelain Laminate Veneers Produced by Computer-Aided Design/Computer-Assisted Manufacturing Technology: A Preliminary In Vitro Study

Abstract: All CAD/CAM laminate veneers except for Empress and Suprinity in the middle and incisal thirds showed good results (ie, gaps < 120 μm in the cervical, middle, and incisal thirds).

Cited by 8 publications

References 0 publications

One-year clinical evaluation of e.max CAD and LavaTM ultimate laminate veneers with butt joint preparation (Randomized controlled clinical trial)

One-year clinical evaluation of e.max CAD and LavaTM ultimate laminate veneers with butt joint preparation (Randomized controlled clinical trial)

Resin Cement Residue Removal Techniques: In Vitro Analysis of Marginal Defects and Discoloration Intensity Using Micro-CT and Stereomicroscopy

Rehabilitación mínimamente invasiva con carillas de porcelana: reporte de caso

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