Gum disease is due to microorganisms and this infection becomes very much easier to infect if the immune system is worsened, and the immune system is damaged generally when there are any cancerous infections.
Around 14% of gum disease patients were known to have cancer of any one of the organs.

Some of these dental excavation instruments are the enamel chisels, gingival margin trimmers, and dental excavators like the enamel hatchet and spoon excavators.

Enamel hatchets:
Enamel Hatchets are dental hand instruments that are designed to cleave tooth enamel along the margins of the enamel rods. They are used in preparation of the cavity walls and the accessible margins of the dental cavity preparation. They are recognized by their numbers.

Dental hatchets:
The dental hatchets are used for widening the entrance of the tooth cavity. After the carious dentine is removed, this dental hand instrument is used to slice away the thin carious enamel.

Spoon Excavators:
Spoon excavators are extensively used in the removal of the tooth debris and decayed dentin from the tooth cavities. Usually, the paired instruments are used for the purpose of excavation of the tooth. These are also identified with numbers.

Spoon excavators are further categorized by their sizes. They are small, medium, and large spoon excavators.
1. The small spoon excavator has an approximate diameter of 1 mm. This instrument is chiefly used in smaller tooth cavities and for the cleaning the enamel or dentine junction. As this is a fragile instrument, a low force is used while excavating to prevent it from damage.
2. The diameter of the medium spoon excavator is about 1.5 mm. This is used chiefly for removing soft caries from larger cavities. Mixed restorative material can be pushed in the cavity using the rounded surface of this excavator.
3. The large spoon excavator is about 2 mm in diameter. This hand dental instrument is used for tooth excavating and restoration procedures, and to remove excessive glass-ionomer material.

The various other instruments used for the tooth excavation procedures are the mixing pad and spatula, mouth mirror, explorer, pair of tweezers, and applier and carver. A special sharpening stone, the ‘Arkansas’ stone, is used for sharpening the spoon excavator, hatchet and the carver.

The various types of burnishers based on the shape of their end parts are:

• Flat plastic burnisher
• Ball burnisher
• Beavertail burnisher
• Cone burnisher
• T-ball burnisher
• Rotary burnisher

Different types of burnishers have different specialized purposes, and are available in peculiar shapes, and sizes. For example, the rotary dental burnisher contains a shank portion that tapers down and connects to a fluted burnishing head. The rotary burnishing head are polished, rounded, and elongated, and has ridges on the surface. The T-ball burnisher has a T-shape at its one end, and one of the ends of the T-shape is shaped like a ball. The ball-end dental burnisher is usually used as a probe to find specific orodontal margins.

Burnishers are precision dental hand instruments and these delicate instruments need careful handling and maintenance to preserve their quality and promote longer life of the instrument. Dental burnishers are multipurpose precision hand instruments and are also used in the operative procedures of eye, ear, nose, and throat.

The dentist uses the dental probe to measure the periodontal sulcus’ depth. When a person has gingivitis, the periodontal probe shows higher depth because the gums are swollen and are enlarged due to the inflammation of the gum tissues. On probing, there is bleeding from the gums. When a person has periodontal disease, the periodontal gums give even higher readings, because along with the swelling of the gums, there is also a loss of surrounding bone material.

Bleeding on probing, also known as BOP, is a sure sign of an inflammation present, and indicates some pathology in the lining of the gingival sulcus. A periodontal chart, a sort of topographical mapping of the patient’s gum tissues, is created with the help of the periodontal probe and it can measure the extent of the disorder present in the tissues surrounding the teeth. This chart can also be used to note the progress made along the treatment. A probing with the help of the periodontal probe indicates the state of health of the periodontium.

In 1868, American dentist George F. Green innovated a pedal-powered drill that operated with the help of pneumatic bellows. In 1871, James B. Morrison innovated pedal-powered burr drill. Dr. Green patented the electric dental drill using the electromagnetic motor in the year 1871, which revolutionized dentistry. This was later modernized by replacing the electromagnetic motor with normal plug-in type electric-powered dental drill.

The dental drill usually uses small tungsten carbide or steel burs. The bur can also have a coating of diamond. The dental drill is carefully sterilized every time before any dental procedure. The dental drill is used to remove the decayed area of the tooth. Depending upon the affected area, the use of a dental drill, or an air abrasion device, or a laser ablation system can be used in the dental procedure.

Advanced robotic dental drills are being developed to assist the doctor and the patient to make the dental procedures more economical and less painful. In this procedure, a frame is used with very thin needles that are pierced in the gums to determine the location of the underlying bone. The findings are wirelessly transmitted to the personal computer. This data is combined with the CT scans, which then configures the guidelines for the specialized dental drilling procedure. The dentist then activates the drill to start drilling at precise spots that were predetermined by the computer.

During the process of dental anesthetization, different anesthetic agents are used to block the inferior alveolar nerve’s sensory transmission to the central nervous system. Topical anesthetics like Eugenol, benzocaine are applied to the oral tissues with a sterile swab to relieve buccal surfaces’ pain. Nitrous oxide, the anti-anxiety agent, relaxes the patient during the dental procedures. Anti-anxiety agents are used for moderate sedation purpose. Lidocaine, xylocaine, septocaine or marcaine, or any other suitable anesthetic agent, depending on the procedural requirement, induces local anesthesia. Deeper sedation or general anesthesia under ketamine or fentanyl may be required in certain dental cases.

The dentist uses specialized dental syringe containing a breech-loading syringe that has an anesthetic solution packed in a hermetically sealed cartridge. The syringe tip is detachable from the syringe body. This dental syringe containing the anesthesia is inserted towards the root apex of the tooth until the bone is contacted. The dental carpule contains the anesthetic agent of xylocaine with epinephrine. The dental syringe may also contain an additional tool to supply water or air to remove debris while conducting the dental procedure. A 3-way dental syringe is used which can supply pressurized air, water, and a mist of water and air through separate channels to assist the dental procedure.

The dental tweezers are available as:

• The college serrated type with stainless steel body, angled beak, and serrated handles,
• The college non-serrated type with stainless steel body and angled beak
• The locking type
• the plastic disposable type
• Various other specialized types and sizes.

The beak of the tweezers is a delicate structure, and the tweezers should be handled with care. These beaks can distort easily if they are used carelessly or incorrectly.
The tweezers are sterilized carefully and are used during any oral or dental procedures to avoid contamination of any tissue or specimen while handling. The pair of tweezers, or the college tweezers as they are popularly known, is used to transfer an item from one place to another.

For example, it is used for holding and transferring the cotton wool pellets, cotton wool rolls, wedges and articulation paper from the tray to the oral cavity and back. For example, this hand dental instrument is used to apply the dentine conditioner with the help of cotton wool pellets. To stop the bleeding, the pair of tweezers is used with the cotton wool pellets, which is pressed on the wound till the bleeding is stopped, or to place medicated cotton wool inside the cavity.

These arch wire applications shift the teeth into the pre determined and defined particular direction. This results in a ‘stress’ that is created within the periodontal ligament within the tooth. The resultant modification or change within the periodontal blood supply in turn causes a natural biological response to the action. This leads to effective remodeling of the bone structure within the mouth. The bone structure is created by the osteoblast cells, while it is resorbed by the osteoclast cells.

There are two different kinds of bone resorption processes possible when considering how orthodontic braces work. The direct resorption begins from within the cell lining of the alveolar. The indirect resorption is taken care of when the osteoclasts commence the desired activity in the adjacent bone marrow. The indirect resorption process basically unfolds when the periodontal ligament becomes acellular. This process is also referred to as necrosis or hyalinization and it is only initiated in the presence of the desired amount of stress on the enamel within the suggested duration of compression. The quantity of bone resorbed is usually more than that of the newly formed bone. This is also referred to by dentists as “negative balance.”

When inquiring ‘How do braces work?’ it is important to understand that the desired bone resorption essentially takes place within the compressed periodontal ligament. It is also important to understand the phenomenon called bone deposition. This phenomenon is associated with tooth movement and occurs within the periodontal ligament. This important development is essential for the teeth to stay firm. If this is not used the resultant voids hamper the direction of tooth movement.

A tooth is observed to shift approximately a millimeter each month, which is carefully monitored by the orthodontists. However, the individual variability in this shift is relatively high. The tools and numerous orthodontic mechanics and techniques vary in efficiency. This is the prime reason for the wide range of response to orthodontic treatment observed all over the world. It is imperative to understand the working of the dental treatment prior to setting any preconceived goals for yourself.

You can take up teeth whitening procedure by going to the dentist and having it done there by the dentist or you can bring home take a kit from the dentist and follow their instruction by doing it at home. Some people take to home recipes for teeth whitening instead of going by a dentist’s recommendations. However, teeth whitening can cause side effects. Here is a look at some of the risks you need to be aware of, before you decide to take up teeth whitening:

* If you were to opt for home remedies, many of them suggest using fruits which that strong acidic properties. Such food actually breaks away the teeth enamel and the result is sensitive teeth and teeth prone to decay.

* Dentist use a bleaching process to whiten teeth. The beach solution contain Hydrogen Peroxide and when done often can irritate the teeth and gums.

* People using at home kits need to use the right quantity of bleaching solution on their teeth. If you do not pay attention to what is the right concentration and quantity of bleaching solution that you need to use when doing teeth whitening at home, the result can be painful and discomforting instead of being helpful.

* Teeth whitening are also seen to cause gum irritation. Sometime patients are seen to experience sensations such as nausea, vomiting or a burning feeling as a result of ingesting tenth whitening solutions.

* Recently, research done by Georgetown University has brought out that hydrogen peroxide which is the man ingredient in teeth whitening solution may cause tongue cancer. Though the research based this only on 19 study cases, it is an alarming fact to be brought out.

Teeth whitening should be resorted to only if teeth are significantly discolored and it should not be used often. Preventing discoloration is better and this can be done by regular brushing and flossing.

Though there are many methods used, it is best to take advice and treatment from a dentist. Home recipes for teeth whitening can break the teeth enamel and make teeth sensitive.

When you go to a dentist for a teeth whitening procedure, the dentists will inform you on the bleaching procedures they will implement to whiten your teeth can be whitened. Two of these procedures must be done in the dentist’s clinic while one procedure can be done by you at home: Here is a look into each of these procedures:

* Bleaching work done by the dentist begins by first placing a protective material over your gums and lips. This will protect then while the process of bleaching begins. Bleaching solution containing hydrogen peroxide is applied on the teeth and laser light is directed to the teeth to activate the bleaching agent. This treatment process goes on for about 45 minutes. This process is the best for discolored teeth. In the case of a teeth that has been subject to root canal treatment, bleaching solution is placed on the front as well as in the inside of the tooth.

* It is also possible for teeth whitening to be done at home, through bleaching solution provided by the dentist. The dentist will direct you on how to apply the bleach. A perfect impression of your teeth is taken to make a mouthpiece. You will apply bleach to your teeth with the mouthpiece fitted on to prevent your mouth from being affected by contact with bleaching chemicals. The bleaching solution provided by dentists for at-home belching is not as strong as the one used in the dentist clinic and there is also no need for a laser to active the bleaching agent in the solution. Results can take about two to three weeks.

The decision to take up teeth whitening with the dentist or doing it at home using a kit provided by the dentist depends on your choice. When you take up teeth whitening in case you feel discomfort, be sure to consult your dentist, so that you can get some alternatives on it.