Dynamometric assessment of the mechanical resistance of porcelain veneers related to tooth preparation: A comparison between two techniques

Zarone, Fernando; Epifania, Ettore; Leone, G.; Sorrentino, Roberto; Ferrari, Marco

doi:10.1016/j.prosdent.2006.03.003

Cited by 33 publications

(39 citation statements)

References 35 publications

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“…In the present study, highly filled epoxy resin teeth were used as replicas of natural teeth since they have a modulus of elasticity similar to that of human dentin (14.7 GPa) [24] . Other studies used human teeth, bovine, or animal teeth [18,19] . The human teeth are affected by variables caused by differences in the surface characteristics (cracks, attrition, wear), age of the extracted teeth and the storage after extraction (distilled water, saline, dry storage) [29] .…”

Section: Discussionmentioning

confidence: 99%

“…Seating of the veneers using a standardized technique was adopted. Other studies used finger pressure technique which does not ensure standardization [18] .…”

Section: Discussionmentioning

confidence: 99%

“…Long-term stability is influenced by the oral cavity conditions (such as temperature and pH changes, humidity) and the ability of the veneer material to withstand these conditions [18,19] .…”

Section: Introductionmentioning

confidence: 99%

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Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Hamza¹,

Al-Baili²,

Abdel‐Aziz³

2018

SDS

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Aim: The purpose of the study was to evaluate the effect of artificially accelerated aging on marginal fit and color stability of three CAD/CAM materials used to fabricate laminate veneers. Methods:A typodont maxillary central incisor tooth was prepared to receive a ceramic veneer, then duplicated to create 15 epoxy resin teeth equally divided into three groups according to the ceramic used to fabricate laminate veneers. Three groups were established: Group (N) nano-hybrid ceramic (Lava™ Ultimate; 3M ESPE); Group (L) CAD/CAM lithium disilicate glass ceramic block (IPS e.max ® CAD; Ivoclar Vivadent); and Group (F) leucite-reinforced glass ceramic block (IPS Empress ® CAD; Ivoclar Vivadent). All of the specimens were subjected to artificial aging using a weathering process in a Weather-O-meter for 300 h. Margin fit and color measurements were carried out before and after artificial aging of the laminates. Results:The results for the marginal fit revealed that there was no statistically significant difference between the mean marginal gap distance of the aged and non-aged specimens in the nano-hybrid ceramic. However, lithium disilicate glass ceramic and leucite-reinforced glass ceramic blocks showed a statistically significant change in the marginal gap. For color measurement, Lava™ Ultimate demonstrated a significant decrease in (a*) value while the (L*) and (b*) values did not show a statistically significant change. Conclusion:Within the limitation of this study, it can be concluded that aging the nano-hybrid ceramic had a superior marginal fit and inferior color stability.

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Section: Discussionmentioning

confidence: 99%

“…Seating of the veneers using a standardized technique was adopted. Other studies used finger pressure technique which does not ensure standardization [18] .…”

Section: Discussionmentioning

confidence: 99%

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Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Hamza¹,

Al-Baili²,

Abdel‐Aziz³

2018

SDS

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“…The preparation design was standardized as follows: 0.5-mm facial reduction, 2-mm incisal margin reduction, 0.5-to 1-mm interproximal reduction, and a cervical margin placed 1 mm incisal to the CEJ. Finishing procedures were performed with stones (Dura-White Arkansas Stones; Shofu Dental Corp, San Marcos, CA) and hand chisels (HuFriedy, Chicago, IL) (15,19).…”

Section: Methodsmentioning

confidence: 99%

Fracture Resistance and Deflection of Pulpless Anterior Teeth Restored with Composite or Porcelain Veneers

D’Arcangelo

Angelis

Vadini

et al. 2010

Journal of Endodontics

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“…[1][2][3][4] The ceramic materials evolution, as well as advances in techniques for adhesive cementation, contributed to a plethora of aesthetic treatments with metal-free prostheses, which simulate natural teeth and have good resistance, besides enabling more and more conservative preparations. [4][5][6][7][8] Currently, the use of contact lenses, which are nothing more than thin ceramic fragments, is an extremely aesthetic solution for presenting excellent optical properties, and considered one of the most conservative treatments for oral rehabilitation, with little or no tooth preparation, which happens to be one of its greatest advantages.…”

Section: Introductionmentioning

confidence: 99%

Minimally invasive preparations: Contact lenses

Nóbrega¹,

Signoreli²,

Mazzaro³

et al. 2015

JCRI

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Conservative aesthetic dental treatment methods have been increasingly requested in clinical practice, especially when the anterior region presents aesthetics problems, such pigmentations, malpositioning, and problems of proportion and size of the teeth. Thus, this work aims to conduct a brief literature review on esthetic restorations with minimally invasive preparations and describe step by step, by reporting a case, the clinical protocol to be followed by the professional for making dental contact lenses. Currently, what is more conservative in aesthetic treatments are ceramic fragments, usually made of lithium disilicate ceramics, which are 0.2-0.5 mm thick and, therefore, require minimal tooth preparation. Such treatment was selected for a male patient aged 17-year-old who was admitted in the Aracatuba Dental School, Universidade Estadual Paulista, complaining of unsatisfactory aesthetics due to dental problems of size and proportion. The achieved result was very satisfactory for both the patient and professional. We conclude that the contact lenses are currently the best treatment option for elective aesthetic cases, once it is an extremely conservative rehabilitation that faithfully mimics the dental structure and shape, besides being a very predictable treatment.

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Dynamometric assessment of the mechanical resistance of porcelain veneers related to tooth preparation: A comparison between two techniques

Cited by 33 publications

References 35 publications

Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Effect of artificially accelerated aging on margin fit and color stability of laminate veneers

Fracture Resistance and Deflection of Pulpless Anterior Teeth Restored with Composite or Porcelain Veneers

Minimally invasive preparations: Contact lenses

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