Teeth Splinting


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About Teeth Splinting

Splinting teeth to each other allows weakened teeth to gain support from neighbouring ones. When used to connect periodontally compromised teeth, splinting can increase patient comfort during chewing. Connecting multiple teeth also increases support when the teeth are used as abutments for a precision attached partial denture. However, splinting makes oral hygiene procedures difficult. Therefore, to ensure the longevity of the connected teeth, special attention must be given to instructing the patient about enhanced measures for oral hygiene after placement of the prosthesis.

Several methods, both extracoronal and intracoronal, are available to splint teeth together.


Extracoronal Splinting

The simplest way to connect teeth to each other is the classic bonding method. The enamel surface of the tooth is etched, most commonly with a 37% solution of phosphoric acid. Composite resin can then be bonded to the etched surface and used to rigidly connect the teeth to each other. The composite-resin splint can be strengthened by adding fibres to the splint or by using a fibre meshwork (e.g., Ribbond, Ribbond Inc., Seattle, WA) to reinforce the material.

Extracoronal resin-bonded retainers, which can be fabricated in the dental laboratory, serve to strengthen the overall bonded situation. The splints are usually cast from metals, usually non- noble alloys that can be electrolytically or chemically etched. Recent innovations in materials allow these frameworks to be air abraded and then cemented in place with an adhesive resin cement, such as Metabond C&B (Parkell Inc., Farmingdale, NY), Panavia (J. Morita USA Inc., Irvine, CA) or All Bond (Bisco Inc., Schaumburg, IL). This type of splint has greater inherent strength than a composite-resin splint created intraorally. Extra features such as grooves, pins and parallel preparations increase the retentive capacity of these splints.

Newly developed laboratory-cured composite resins such as DiamondCrown (Biodent Inc., Mont-Saint-Hilaire, QC) claim improved diametric tensile strength and bonding capabilities. These materials may be considered for use in extracoronal applications. No long-term clinical data are available for these materials; however, they seem promising at this time.


Intracoronal Splinting

Intracoronal methods are also available. Composite-resin restorations can be placed in adjoining teeth and cured to eliminate any interproximal separation. These restorations can be further reinforced with metal wires, glass-reinforced fibres or pins. If restoration of the mouth includes crowns, the crowns can be splinted to each other by solder joints or precision attachments. The use of attachments affords the practitioner the ease of preparing nonparallel abutments yet achieves a splinted result.

As Seen in Press About Healthcare Travel and Zentist:

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