Operative Dentistry is one of the branches of dentistry that deals with the art and science of the diagnosis, prevention, treatment, and prognosis of diseases or trauma to teeth. Operative Dentistry is indicated primarily for dental caries, malformed, discolored or fractured teeth and replacement or repair of existing restorations. Treatment should restore proper tooth morphology, function, esthetics and harmonious relationship with the surrounding tissues.
Air flowing or Air abrasion machine is the instrument used for air abrasion has the semblance of a small sandblaster. Using this instrument, a mixture of extremely fine particles of baking soda, aluminum oxide, and silica are sprayed on to the surface of the tooth. These are sprayed with force, using compressed air or gas, through the hand-piece of the instrument.
Air flowing is the ideal equipment for hygienists. By using a jet formed by air, powder and water, the removes dental plaque, soft deposits and surface stains from pits, grooves, interproximal spaces and smooth surfaces of the teeth.
* Duration of treatment : 1 Visit in 30-45 minutes
Dental Inalys and Onlays are indirect restorations (out of the mouth) used to repair premolars or molars teeth that have a mild to moderate amount of damage. Inlays and onlays are usually made from porcelain, composite resin, and sometimes even from metal.
Dental inlays are used to restore teeth that have decay or damage lying within their indented top surfaces.
Sometimes, a tooth is treatment planned to be restored with an intracoronal restoration, but the decay or fracture is so extensive that a direct restoration, such as amalgam or composite, would compromise the structural integrity of the restored tooth by possibly undermining the remaining tooth structure or providing substandard opposition to occlusal (i.e. biting) forces. The superiority of an inlay as a restoration in terms of resistance to occlusal forces, protection against recurrent decay, precision of fabrication, marginal integrity, proper contouring for gingival (tissue) health, ease of cleansing and many other aspects of restorative quality offers an excellent alternative to the direct restoration. For this reason, some patients request inlay restorations so they can benefit from its wide range of advantages even when an amalgam or composite will suffice. The only true disadvantage of an inlay is the higher cost.
Dental Onlay are used to restore teeth that have decay or damage extends to one or more of the cusps.
Additionally, when decay or fracture incorporate areas of a tooth that make amalgam or composite restorations essentially inadequate, such as cuspal fracture or remaining tooth structure that undermines perimeter walls of a tooth, an "onlay" might be indicated. Similar to an inlay, an onlay is an indirect restoration which incorporates a cusp or cusps by covering or onlaying the missing cusps. All of the benefits of an inlay are present in the onlay restoration. The onlay allows for conservation of tooth structure when the only other alternative is to totally eliminate cusps and perimeter walls for restoration with a crown. Just as inlays, onlays are fabricated outside of the mouth and are typically made out of composite resin, porcelain or metals.
* Working time in the lab for a permanent Inlay/Onlay
Tooth colored fillings have long been the standard when working on the front or anterior teeth. More recently, there are several reasons for the shift toward posterior fillings that are tooth colored. The most obvious reason is that they look esthetically better than silver fillings.
The quality of these tooth colored materials used for fillings has become increasingly better each year with many scientific advances that maintain the color, resist fracture, and give natural translucent appearance.
A major drawback to amalgam fillings is that preparation for the filling requires back cutting the tooth much like a pyramid so that when the metal hardens it will have good retention. This retention back cutting is required, because the metal does not actually bond to the tooth structure–it simply fills the cavity space and sits next to the normal tooth structure. The back cut areas of the tooth are thin, weak areas, which fracture easily. Amalgam filled teeth are highly susceptible to having cusps that fracture off. Posterior teeth with fractured cups require the placement of Onlay or Crown to preserve normal architecture and function.
Composite resin tooth colored fillings look natural with a translucent tooth-like appearance and can be mixed to match any color of the tooth by your dentist.
Since back-cutting is not required, less of the natural tooth structure needs to be drilled away and removed by your Dentist, which maintains more of the strength and integrity of the natural tooth.
Composite resin strengthens the tooth that is filled because the composite resin actually bonds within the tooth structure.
Composite resin fillings rarely have areas of the tooth that are thin or weak, so that cusps rarely fracture off.
Composite resin fillings do not conduct heat and therefore do not expand and contract with heat and cold in your mouth, which helps facilitate tooth fractures near metal fillings.
Without back-cut areas or temperature movement, there is not any stress put upon weak areas of the composite filled tooth as occurs with metal fillings.
Composite fillings do not have any unbounded area between tooth and filling to allow moisture and bacteria to enter and cause decay and aide fractures.