Dental bonding

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Dental bonding
MeSH D001840

Adhesive dentistry is a branch of dentistry which deals with adhesion or bonding to the natural substance of teeth, enamel and dentin. It studies the nature and strength of adhesion to dental hard tissues, properties of adhesive materials, causes and mechanisms of failure of the bonds, clinical techniques for bonding and newer applications for bonding such as bonding to the soft tissue. [1] There is also direct composite bonding which uses tooth-colored direct dental composites to repair various tooth damages such as cracks or gaps.

Contents

Dental bonding is a dental procedure in which a dentist applies a tooth-colored resin material (a durable plastic material) and cures it with visible, blue light. This ultimately "bonds" the material to the tooth and improves the overall appearance of teeth. [2] Tooth bonding techniques have various clinical applications including operative dentistry and preventive dentistry as well as cosmetic and pediatric dentistry, prosthodontics, and orthodontics.

History

Adhesive dentistry began in 1955 with a paper by Dr. Michael Buonocore on the benefits of acid etching.[ citation needed ] Technologies have changed multiple times since then, with generally recognized generations established in the literature.[ citation needed ] Dental bonding agents have evolved from no-etch to total-etch (4th- and 5th-generation) to self-etch (6th- and 7th-generation) systems. [3] improved convenience and reduced sensitivity to operator errors. However, the best bonding and longevity was achieved with 4th generation agents (having separate etch, prime, and bond steps). [4]

All in one self-etch adhesive and a single component universal adhesive by Kerr, both used in the adhesion of direct and indirect dental restorations Dental bonding agents.jpg
All in one self-etch adhesive and a single component universal adhesive by Kerr, both used in the adhesion of direct and indirect dental restorations

Irwin Smigel founder and current president of the American Society for Dental Aesthetics and diplomate of the American Board of Aesthetic Dentistry, was one of the first to broaden the usage of bonding by using it to close gaps between teeth, lengthen teeth as well as to re-contour the entire mouth rather than using crowns. Having done more extensive work on the process than any other dentist, Dr. Smigel lectures worldwide on aesthetic dentistry. In 1979 he published a guide to aesthetic dentistry entitled “Dental Health/Dental Beauty.” [5]

In 2012, new dental universal adhesives are commercialized. The universal adhesives bond to all dental substrates, which include enamel, dentin, metal, porcelain, ceramic and zirconia, with a single application. The term “universal” adhesive is not new. In fact, many early bonding agents were named or described as “universal” adhesives, such as XP Bond-Universal Total-etch Adhesive (Dentsply), One-Step-Universal Dental Adhesive (Bisco). However, there is still not a definition of dental “universal adhesive”. It is highly confusing what the term “universal” means. In 2012, the term “universal adhesive” has several definitions which may include: [6]

  1. a) Can be used in total-etch, self-etch, and selective etch techniques;
  2. b) Can be used with light-cure, self-cure, and dual-cure materials (without the separate activators);
  3. c) Can be used for both direct and indirect substrates;
  4. d) Can bond to all dental substrates, such as dentin, enamel, metal, ceramic, porcelain, and zirconia.

In orthodontic treatments

Bonding of orthodontic brackets to teeth is crucial to enable effective treatment with fixed appliances. There is no clear evidence on which to make a clinical decision of the type of orthodontic adhesive to use. [7] [8]

Dental adhesive

See also

Related Research Articles

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Cosmetic dentistry is generally used to refer to any dental work that improves the appearance of teeth, gums and/or bite. It primarily focuses on improvement in dental aesthetics in color, position, shape, size, alignment and overall smile appearance. Many dentists refer to themselves as "cosmetic dentists" regardless of their specific education, specialty, training, and experience in this field. This has been considered unethical with a predominant objective of marketing to patients. The American Dental Association does not recognize cosmetic dentistry as a formal specialty area of dentistry. However, there are still dentists that promote themselves as cosmetic dentists.

<span class="mw-page-title-main">Bridge (dentistry)</span> Dental restoration for missing teeth

A bridge is a fixed dental restoration used to replace one or more missing teeth by joining an artificial tooth definitively to adjacent teeth or dental implants.

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<span class="mw-page-title-main">Crown (dental restoration)</span> Dental prosthetic that recreates the visible portion of a tooth

In dentistry, a crown or a dental cap is a type of dental restoration that completely caps or encircles a tooth or dental implant. A crown may be needed when a large dental cavity threatens the health of a tooth. Some dentists will also finish root canal treatment by covering the exposed tooth with a crown. A crown is typically bonded to the tooth by dental cement. They can be made from various materials, which are usually fabricated using indirect methods. Crowns are used to improve the strength or appearance of teeth and to halt deterioration. While beneficial to dental health, the procedure and materials can be costly.

<span class="mw-page-title-main">Dental composite</span> Substance used to fill cavities in teeth

Dental composite resins are dental cements made of synthetic resins. Synthetic resins evolved as restorative materials since they were insoluble, of good tooth-like appearance, insensitive to dehydration, easy to manipulate and inexpensive. Composite resins are most commonly composed of Bis-GMA and other dimethacrylate monomers, a filler material such as silica and in most applications, a photoinitiator. Dimethylglyoxime is also commonly added to achieve certain physical properties such as flow-ability. Further tailoring of physical properties is achieved by formulating unique concentrations of each constituent.

<span class="mw-page-title-main">Dental abrasion</span> Medical condition

Abrasion is the non-carious, mechanical wear of tooth from interaction with objects other than tooth-tooth contact. It most commonly affects the premolars and canines, usually along the cervical margins. Based on clinical surveys, studies have shown that abrasion is the most common but not the sole aetiological factor for development of non-carious cervical lesions (NCCL) and is most frequently caused by incorrect toothbrushing technique.

<span class="mw-page-title-main">Inlays and onlays</span> Restoration procedure in dentistry

In dentistry, inlays and onlays are used to fill cavities, and then cemented in place in the tooth. This is an alternative to a direct restoration, made out of composite, amalgam or glass ionomer, that is built up within the mouth.

<span class="mw-page-title-main">Dentine bonding agents</span>

Also known as a "bonderizer" bonding agents are resin materials used to make a dental composite filling material adhere to both dentin and enamel.

<span class="mw-page-title-main">Veneer (dentistry)</span> Layer of material placed over a tooth

In dentistry, a veneer is a layer of material placed over a tooth. Veneers can improve the aesthetics and function of a smile and protect the tooth's surface from damage.

<span class="mw-page-title-main">Glass ionomer cement</span> Material used in dentistry as a filling material and luting cement

A glass ionomer cement (GIC) is a dental restorative material used in dentistry as a filling material and luting cement, including for orthodontic bracket attachment. Glass-ionomer cements are based on the reaction of silicate glass-powder and polyacrylic acid, an ionomer. Occasionally water is used instead of an acid, altering the properties of the material and its uses. This reaction produces a powdered cement of glass particles surrounded by matrix of fluoride elements and is known chemically as glass polyalkenoate. There are other forms of similar reactions which can take place, for example, when using an aqueous solution of acrylic/itaconic copolymer with tartaric acid, this results in a glass-ionomer in liquid form. An aqueous solution of maleic acid polymer or maleic/acrylic copolymer with tartaric acid can also be used to form a glass-ionomer in liquid form. Tartaric acid plays a significant part in controlling the setting characteristics of the material. Glass-ionomer based hybrids incorporate another dental material, for example resin-modified glass ionomer cements (RMGIC) and compomers.

<span class="mw-page-title-main">Luting agent</span>

A luting agent is a dental cement connecting the underlying tooth structure to a fixed prosthesis. To lute means to glue two different structures together. There are two major purposes of luting agents in dentistry – to secure a cast restoration in fixed prosthodontics, and to keep orthodontic bands and appliances in situ.

<span class="mw-page-title-main">Dental attrition</span>

Dental attrition is a type of tooth wear caused by tooth-to-tooth contact, resulting in loss of tooth tissue, usually starting at the incisal or occlusal surfaces. Tooth wear is a physiological process and is commonly seen as a normal part of aging. Advanced and excessive wear and tooth surface loss can be defined as pathological in nature, requiring intervention by a dental practitioner. The pathological wear of the tooth surface can be caused by bruxism, which is clenching and grinding of the teeth. If the attrition is severe, the enamel can be completely worn away leaving underlying dentin exposed, resulting in an increased risk of dental caries and dentin hypersensitivity. It is best to identify pathological attrition at an early stage to prevent unnecessary loss of tooth structure as enamel does not regenerate.

Dental pertains to the teeth, including dentistry. Topics related to the dentistry, the human mouth and teeth include:

Dental cements have a wide range of dental and orthodontic applications. Common uses include temporary restoration of teeth, cavity linings to provide pulpal protection, sedation or insulation and cementing fixed prosthodontic appliances. Recent uses of dental cement also include two-photon calcium imaging of neuronal activity in brains of animal models in basic experimental neuroscience.

<span class="mw-page-title-main">Pulp capping</span> Dental restoration technique

Pulp capping is a technique used in dental restorations to protect the dental pulp, after it has been exposed, or nearly exposed during a cavity preparation, from a traumatic injury, or by a deep cavity that reaches the center of the tooth, causing the pulp to die. Exposure of the pulp causes pulpitis. The ultimate goal of pulp capping or stepwise caries removal is to protect a healthy dental pulp, and avoid the need for root canal therapy.

10-Methacryloyloxydecyl dihydrogen phosphate is a chemical compound used in dental adhesive materials. This organophosphate monomer was developed in 1981 by the Japanese company Kuraray for the preparation of dental adhesion polymers

<span class="mw-page-title-main">Molar incisor hypomineralisation</span> Medical condition

Molar incisor hypomineralisation (MIH) is a type of enamel defect affecting, as the name suggests, the first molars and incisors in the permanent dentition. MIH is considered a worldwide problem with a global prevalence of 12.9% and is usually identified in children under 10 years old. This developmental condition is caused by the lack of mineralisation of enamel during its maturation phase, due to interruption to the function of ameloblasts. Peri- and post-natal factors including premature birth, certain medical conditions, fever and antibiotic use have been found to be associated with development of MIH. Recent studies have suggested the role of genetics and/or epigenetic changes to be contributors of MIH development. However, further studies on the aetiology of MIH are required because it is believed to be multifactorial.

Anterior teeth are some of the most scrutinized teeth, as the size, shape and color of the anterior upper teeth plays an important role in dental aesthetics and smile aesthetics. A few aesthetic anterior problems, such as dental caries, tooth fracture, enamel defects and diastemas, can be solved with composite restorations. Composite restorations can also improve dental aesthetics by changing the shape, color, length and alignment of teeth.

References

  1. The Journal of Adhesive Dentistry: Online Introduction
  2. Bella Smiles. "Dental Bonding Facts" . Retrieved 29 Jan 2021.
  3. De Munck J, Van Landuyt KL, Peumans M, Poitevin A, Lambrechts P, Braem M, Van Meerbeek B. A critical review of the durability of adhesion to tooth tissue: methods and results. J Dent Res 2005;84:118-132.
  4. Ernest CP, Holzmeier M, Willershausen B (Winter 2004). "In vitro shear bond strength of self-etching adhesives in comparison to 4th and 5th generation adhesives". The Journal of Adhesive Dentistry. 6 (4): 293–9. doi:10.3290/j.jad.a9727. PMID   15779314.
  5. Smigel, Irwin (1979). Dental Health/Dental Beauty. M. Evans. ISBN   978-0-87131-284-6.
  6. Christensen G. New universal adhesives (part I): are they better? Clinicians Report 2012;5(3): 1-4.
  7. Mandall, Nicky A.; Hickman, Joy; Macfarlane, Tatiana V.; Mattick, Rye C.R.; Millett, Declan T.; Worthington, Helen V. (2018-04-09). "Adhesives for fixed orthodontic brackets". Cochrane Database of Systematic Reviews. 4 (5): CD002282. doi:10.1002/14651858.cd002282.pub2. PMC   6494429 . PMID   29630138.
  8. Dental Fixing