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This article is about molar coverings used in dentistry. For other uses, see Veneer (disambiguation).

Porcelain Veneers
Comparison between a porcelain-metal dental crown, an all-porcelain dental crown and a porcelain veneer laminate
MeSH	D003801
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In dentistry, a veneer is a layer of material placed over a tooth. Veneers tin improve the aesthetics of a smiling and protect the tooth's surface from impairment.

There are two main types of material used to fabricate a veneer: blended and dental porcelain. A composite veneer may exist directly placed (built-upwardly in the oral fissure), or indirectly fabricated by a dental technician in a dental lab, and later bonded to the molar, typically using a resin cement. They are typically used for treatment of adolescent patients who will require a more permanent design once they are fully grown. The lifespan of a composite veneer is approximately iv years.^[1] In contrast, a porcelain veneer may only be indirectly fabricated. A full veneer crown is described as "a restoration that covers all the coronal molar surfaces (Mesial, Distal, Facial, Lingual and Occlusal)"^{[ citation needed ]}. Laminate veneer, on the other hand, is a thin layer that covers only the surface of the molar and is more often than not used for aesthetic purposes. These typically take better performance and aesthetics and are less plaque retentive.^[1]

Medical uses [edit]

Veneers are a prosthetic device, past prescription simply, used by the cosmetic dentist. A dentist may apply ane veneer to restore a single tooth or veneer with high quality that may take been fractured or discolored, or in near cases multiple teeth on the upper arch to create a big bright "Hollywood" blazon of smiling makeover. Many people have small-scale teeth resulting in spaces that may not be easily airtight by orthodontics. Some people have worn away the edges of their teeth resulting in a prematurely aged appearance, while others may take malpositioned molar/teeth that appear crooked. Multiple veneers can close these spaces, lengthen teeth that have been shortened past wearable, fill the blackness triangles between teeth caused by gum recession, provide a uniform color, shape, and symmetry, and make the teeth appear straight.^[2] Dentists also recommend using sparse porcelain veneers to strengthen worn teeth.^[three] It is also applied to yellow teeth that won't whiten. Thin veneers are an effective selection for aging patients with worn dentition. In many cases, minimal to no tooth preparation is needed when using porcelain veneers.

When preparing, in between prep and fit appointments of the veneer, you tin can make temporaries, usually out of blended. These are not commonly indicated but can be used if the patient is lament of sensitivity or aesthetics.^[1] According to a leading Beverly Hills Corrective Dentist,^{[ who? ]} temporaries are actually important to blueprint and finalize the aesthetics of the concluding veneers. Temporaries help patients and the dentist determine on the right color, length and shape of the veneers.^[4]

Indications [edit]

Discoloured teeth, malformed teeth, enamel hypoplasia (not enough enamel), enamel hypocalcification (enamel not fully mineralised), fluorosis, tetracycline staining, non-vital tooth discolouration, malposition, enamel fractures, enamel loss by erosion, change shape of tooth.^[v]

Contraindications [edit]

In a controversial opinion, Dr. Michael Zuk, a Canadian DDS, profiles in his opinion and bug of overuse of porcelain veneers by certain cosmetic dentists in 'Confessions of a One-time Corrective Dentist'. He suggests that the utilise of veneers for 'instant orthodontics' or simulated straightening of the teeth tin can be harmful, especially for younger people with healthy teeth. Leading dentists^[six] caution that pocket-sized superficial damage or normal vesture to the teeth is not justification for porcelain or ceramic veneers. This is because the preparation needed to utilise a veneer may in some cases destroy 3–xxx% ^[1] of the molar'due south surface if performed past an inexperienced dentist. It has been found that afterward 10 years, 50% of veneers are either displaced, demand re-treatment, or are no longer in satisfactory condition.^[7]

Some cosmetic dentists may push unnecessarily for prosthodontic treatment in adolescents or immature to eye-aged adults who take otherwise healthy teeth that only necessitate whitening or more routine cleaning. As preparation for veneers requires shaving downward the tooth in some cases, sensitivity and disuse will be a trouble even if the procedure is properly performed. In improver, a veneer's maintenance cost tin also be prohibitive for many individuals. Veneer placement should be limited to individuals with significant aesthetic issues, such as desperately cracked or broken teeth, that do non meet the requirements for a crown or full replacement.

Boosted contraindications include but are non express to the following: poor oral hygiene, uncontrolled gingival disease, high cavities rate, parafunction, no enamel, unreasonable patient expectations, large existing restorations.^[i]

Classification [edit]

Several nomenclature systems are possible for veneers. One system suggested in 2012 is called Nankali Veneer Classification and divides the veneers as follows:

• Labial Surface Coverage

a) No incisal involvement

b) Feathered incisal edge

c) Incisal overlap

• Interproximal preparations

a) No contact bespeak involvement

b) Contact point level

c) Passed contact point

• Methods of production

a) Indirect veneers

b) Direct veneers

• Materials

a) Ceramic

b) Lithium disilicate (very thin and relatively very stiff porcelain)

c) Da Vinci (Very thin porcelain)

d) Mac (High resistance to stains and relatively strong)

e) Acrylic (No longer in use for quality work)

f) Composite

g) Nano Ceramic

Types of veneer preparations [edit]

There are four bones preparation designs for porcelain laminate veneers:^[eight] window, feather, bevel, and incisal overlap.

Recent technological advances have been made which allow the construction of ultra-thin porcelain laminate veneers. These veneers require simply very small, or in some instances, no reduction of the tooth structure. These are ofttimes referred to every bit "non-prep" veneers.

Alternatives [edit]

In the by, the merely way to right dental imperfections was to cover the tooth with a crown. Today, in most cases, there are several possibilities from which to pick: crown, composite resin bonding, cosmetic contouring or orthodontics.

Non-permanent dental veneers, which are molded to existing teeth, are a feasible selection too. These dental veneers are removable and reusable, and are made from a flexible resin cloth. Do-it-yourself kits are bachelor for the impression-taking process, and then the actual veneers are made in a lab and sent to the wearer through the mail.^{[ citation needed ]}

History [edit]

Veneers were invented by California dentist Charles Pincus in 1928 to be used for a flick shoot for temporarily changing the advent of actors' teeth.^[9] Later, in 1937 he made acrylic veneers to be retained by denture adhesive, which were merely cemented temporarily considering there was very little adhesion. The introduction of etching in 1959 by Dr. Michael Buonocore aimed to follow a line of investigation of bonding porcelain veneers to etched enamel. Research in 1982 past Simonsen and Calamia^[ten] revealed that porcelain could be etched with hydrofluoric acid, and bail strengths could be achieved between composite resins and porcelain that were predicted to be able to hold porcelain veneers on to the surface of a tooth permanently. This was confirmed past Calamia^[11] in an article describing a technique for fabrication, and placement of Etched Bonded Porcelain Veneers using a refractory model technique and Horn^[12] describing a platinum foil technique for veneer fabrication. Additional manufactures have proven the long-term reliability of this technique.^{[xiii] [xiv] [15] [16] [17] [18] [19] [xx] [21]}

Today, with improved cements and bonding agents, they typically terminal x–30 years. They may accept to be replaced in this time due to cracking, leaking, chipping, discoloration, disuse, shrinkage of the gum line and damage from injury or tooth grinding. The price of veneers can vary depending on the experience and location of the dentist. In the U.s., costs range anywhere from $1000 a tooth upwards to $3000 a tooth every bit of 2011. Porcelain veneers are more durable and less likely to stain than veneers made of blended.^[22]

See also [edit]

• Corrective dentistry
• Crown (dentistry)
• Dental restoration
• CAD/CAM Dentistry
• Prosthetic dentistry
• Light activated resin

References [edit]

1. ^ ^{a b c d e} Mitchell, David and Laura (2016). Oxford Handbook of Clinical Dentistry. OXFORD. ISBN978-0-nineteen-879581-0.
2. ^ ELHAMID A., AAZZAB B. Les facettes en céramique : de l'indication à fifty'utilisation Le courrier du dentiste
3. ^ "The Awesome History and Future of Dental Veneers". Oakville Place Dental Role. 2016-04-20. Retrieved 2019-ten-31 .
4. ^ "Understanding the procedure of veneers". Smilesbydrp. 2019-05-08.
5. ^ University of Manchester (four March 2019). "Veneers" (PDF) . Retrieved 4 March 2019.
6. ^ "Veneers". Columbia River Dentistry . Retrieved 2019-01-06 .
7. ^ Leading dentists^[ who? ] question widespread use of porcelain crowns and veneers Very few experienced cosmetic dentists question widespread utilize of porcelain crowns and veneers
8. ^ Walls, A. W. Chiliad.; Steele, J. Yard.; Wassell, R. Due west. (2002-07-27). "Crowns and other extra-coronal restorations: porcelain laminate veneers". British Dental Journal. 193 (two): 73–76, 79–82. doi:10.1038/sj.bdj.4801489. ISSN 0007-0610. PMID 12199127.
9. ^ Pincus CL."Building oral fissure personality" A paper presented at: California State Dental Clan;1937:San Jose, California
10. ^ Simonsen R.J. and Calamia John R. "Tensile Bond Strengths of Etched Porcelain", Journal of Dental Research, Vol. 62, March 1983, Abstract #1099.
11. ^ Calamia John R. "Etched Porcelain Facial Veneers: A New Treatment Modality Based on Scientific and Clinical Bear witness", New York Periodical of Dentistry, Vol. 53, #6, Sept./October. 1983, pp.255-259.
12. ^ Horn HR. "A new lamination, porcelain bonded to enamel". NY St Dent J 1983;49(half dozen):401-403
13. ^ Calamia John R. and Simonsen R.J. "Upshot of Coupling Agents on Bond Forcefulness of Etched Porcelain", Periodical of Dental Research, Vol. 63, March 1984, Abstruse #79.
14. ^ Calamia John R. "Etched Porcelain Veneers: The Current Country of the Art", Quintessence International,Vol. 16 #ane, January 1985.
15. ^ Quinn F Mc Connell RJ "Porcelain Laminates: A review", Br Dental J. 1986:161(ii):61-65
16. ^ Calamia John R. "Clinical evaluation of etched porcelain veneers" Am J Dent 1989:2:ix-xv
17. ^ Nathanson D, Strassler HE. Clinical evaluation of etched porcelain veneers over a period of 18 to 42 months J Esthet Paring 1989:1(ane):21-28
18. ^ Strassler HE, Weiner South "Long-term clinical evaluation of etched porcelain veneers" J Dental Res 77 (Special Result A):233 Abstract 1017,1998
19. ^ Friedman, MJ "A fifteen-yr review of porcelain veneer failure- a clinicians' observations. Compend Contin Educ Dent. 1998:xix (vi):625-636.
20. ^ Calamia John R. "Etched Porcelain Laminate Restorations: A 20-year Retrospective- Part one" AACD Monograph Vol II 2005:137-145 Montage Media Publishing
21. ^ Barghi, N , Overton JD "Preserving Principles of Successful Porcelain Veneers" Gimmicky Esthetics 2007:11(i)48-51
22. ^ Calamia John R.,Calamia Christine Due south. Porcelain Laminate Veneers: Reasons for 25 Years of Success, Successful Esthetic and Cosmetic Dentistry for the Mod Dental Practice, Dental Clinics of North America. Apr 2007 Vol 51 No. 2 Calamia, Wolff, Simonsen Saunders/Elsevier, Inc., Veneers by Calamia, Enamelique.com [i] Since 2018 dental tourism has get increasingly pop. Dental treatments in European countries such as turkey have get an affordable option for many customers from the USA and Britain. The costs of dental treatment in turkey are upwardly to 70% cheaper. The nearly popular treatments are cosmetic Hollywood grinning makeovers. The cost of these treatments in European countries ranges from $5,049- $7,056, this style treatment would typically include twenty teeth.

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Source: https://en.wikipedia.org/wiki/Veneer_(dentistry)

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