Orthodontic treatment with arch wires has got inevitable features of wires that has to be remembered and some of these features are given below:-
- Spring Back:It is the measure of how far a wire can be deflected without causing permanent deformation.It is also called elastic deflection.
- Stiffness:The presence of a low stiffness provides the ability to apply lower forces and a more constant force over time.
- Formability:The arch wire has to exhibit high formability so as to bend into desired configuration such as coils,loops etc without fracturing the wire.
- Resilience:It is the amount of force the wire can withstand before permanent deformation.
- Biocompatibility and Environmental stability:Orthodontic arch wires should exhibit resistance to tarnish and corrosion and should be non-toxic.The material should maintain its desirable properties for extended periods of time after manufacture.
- Joinability:The wire should be amenable to soldering and welding
- Friction:The Arch wire should provide least friction at the wire-bracket interface.
Brackets act as handlers to transmit the force from the active components to the teeth.Brackets have one or more slots that accept the arch wire.Brackets can be available in different designs and can be classified in a number of ways.
- Edge type of bracket:Brackets used in the Edgewise and Straight Wire technique have a horizontal slot facing labially.These brackets with rectangular slots are so called because they accept wires of rectangular cross-section with the larger dimension being horizontal.These brackets provide greater control over tooth movement and do not permit tipping of teeth
- Ribbon Arch Brackets:They are brackets which possess a vertical slot facing the occlusal or gingival direction.This kind of bracket is used with round wires to bring about tipping of teeth in labio-lingual as well as mesio-distal direction.These are used in Begg fixed appliance.
- Weldable and Bondable brackets:Weldable brackets can be welded on to bands which in turn are cemented around the teeth and Bondable brackets can be bonded directly over the enamel.The under surface of bondable brackets has a mesh or grooves to help in interlocking with the adhesive while weldable brackets have a metal flange that can be welded to the band.
- Metallic Brckets:Steel brackets are most commonly used of this type.The advantages are:-
- They can be recycled and sterilized
- They resist deformation and fracture
- They exhibit the least friction at the wire bracket interface
- Ceramic Brackets:They are made up of aluminium oxides or Zirconium oxides.They are dimensionally stable,durable and resist staining in the oral environment but they are brittle and to compensate,their size is increased which tends to increase their bulk and also exhibit greater friction at the wire bracket compared to metallic brackets.
- Plastic Brackets:They are mostly made up of Poly carbonates which are mainly meant to increase the esthetic value and they are available both in coloured or transparent forms.The main disadvantage is the friction between plastic brackets and metal arch wire is very high.
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Oral hygiene is important to maintain the integrity of the client’s teeth, gum, mucous membrane, and lips. The oral cavity or buccal cavity is comprised of the teeth, tongue and the oral mucosa. This cavity is bounded by the lips in the front, the cheeks on the sides, the mandibles at the floor of the mouth, the palatine bones at the roof and the pharynx at the back. The mouth contains the tongue, the teeth, the gums and the opening of the salivary glands. Read more
Thorough tooth cleaning is needed prior to the treatment of Gingivectomy or Gingivoplasty. This cleaning helps to remove the microbes and calculus from the gaps around the teeth. A periodontist also gives some dental care tips that help you to take care of your teeth after the surgery. Read more
Most of the dental associations and dentists strongly recommend the teeth brushing technique known as the “Bass Method”. Read more
Gingivectomy is the surgical removal of gum tissue or gingiva and Gingivoplasty is a type of gum surgery used to reshape healthy gum tissue around teeth. Both these surgical treatments are done by periodontists. Periodontists are dentists specialized in treating gums and the other structures that support teeth Read more
When most people think of braces, they commonly associate them with pimply, preteen or teenage kids with a hunk of metal in their mouth. Braces are often seen as just another element to this painfully awkward stage in life, somewhat of a necessity to growing up. What if you are older and still haven’t had them, though? Maybe your parents couldn’t afford them or you just refused to add to the horrors of high school. Whatever the reason, your teeth are crooked and you aren’t a big fan of them. Is it too late to get those braces you avoided in your teenage years? Never. Here’s why. Read more