Simple term that
definitions the dental restorations is any artificial structure that
is used to replace part of a tooth, or whole tooth, aiming at preserving
the function, appearance, and life of your natural teeth.
Dental restorations are an important and often overlooked part of
dentistry. The phrase "nothing lasts forever" is especially
true for dental restorations. When teeth are damaged through dental
caries (decay or cavities), periodontal (gum) disease, trauma (injury),
or simply breakage from internal weakening, restorations can give
you a reason to smile.
If you have restorations in mouth, it is important to have routine
checkups at recommended intervals. While many restorations like amalgams
or that of gold can last 10, 20, or more years, even so, they must
be replaced occasionally to best protect your teeth. Only the good
oral hygiene helps maintain restorations and achieve the longest possible
use from them. This assures protecting the underlying teeth as needed.
In many cases, you will not feel any symptoms of leakage under a restoration.
But if you experience dull or sharp pain when chewing, it is times
go calling to your dentist. Early identification and treatment of
caries beneath restorations can save your teeth.
With the increased attention towards aesthetics is just another good
reason to replace your old restorations. Some times it is blessing
in disguise that while replacing the restorations it is found that
the cement had started loosing grip that would have caused the crown
to loosen up to also develop bite problems.
Different Types of Dental Restorations:
Different types of dental restorations are designed to do specific
jobs; here is a breakdown of the most common:
Sealants: A tooth coloured white filling materials
used to fill the decay prone grooves of the back teeth (usually
children 6-18 years), as a preventative procedure, to cover stain
and to rebuild or change a tooth's shape.
Fillings: When decay creates a cavity in the
tooth, the dentist usually fills it with a durable material when
aesthetics are not predominant. It can be gold or silver amalgam
restorations that have proven high degree of durability. It could
be composite (white) filling materials. Placed directly into the
prepared tooth. Used where the existing fillings or areas of decay
are small enough that the remaining tooth structure has not been
overly weakened.
Inlays: The situations for its use are similar
to fillings except a pre-made piece of ceramic material is bonded
into the tooth. This results in superior physical properties with
lifespan longer than a composite filling. Inlays are a top-quality
alternative to the composite filling. Traditionally gold alloy
has been used for inlays, but now ceramics provide excellent esthetics
as well.
Onlays: The situations where the tooth is fractured
or has been severely weakened, the onlays are used. It differs
from inlays as ceramic covers the entire or most of the biting
surface. Unlike a crown, it does not cover the entire visible
tooth structure. The grinding is needed only when there is decay.
Crowns ("Cap"): A crown is necessary
for a tooth that has been weakened by decay or by recurrent fillings.
It may also be required after Root Canal treatment. It covers
all sides of the tooth as well as the end. It is used when there
is limited tooth structure left, when an existing crown must be
replaced, or when the tooth is an "anchor" tooth for
a fixed bridge. It fits over a specially shaped tooth base and
is usually made of gold, ceramic, or a combination of materials.
In cases where it is impossible to get proper moisture control)
below the gum line or near the back of the mouth), a cemented
crown may substitute for a bonded one.
Veneers: Thin porcelain facings that cover
the front side of teeth. Veneers outperform bonding with greater
resilience and a greater resistance to stains and dulling. Applying
a thin layer of porcelain, composite resin or preformed plastic
so that it adheres to the front surfaces of teeth. Used cosmetically
to change the length, color and shape of teeth, are not at all
felt expensive when aesthetic smile is the main consideration.
Bridges: A bridge replaces a missing tooth
by creating a false crown, attached to two other sufficient "anchor"
crowns (teeth), that go on the teeth surrounding the missing tooth.
Numerous systems are available, including fiber-reinforced ceramics,
Zirconium-based ceramics and porcelain fused to metal bridges.
Implants: Implants are the best solution for
replacing missing teeth, but they are expensive and not everyone
is a candidate for the procedure. These are Titanium posts surgically
placed into the jawbone. Implants are used to support a dental
prosthesis (from single crowns to full denture) once the bone
grows around the post that usually takes 4-6 months after placement.
Removable Partial Dentures: It is used to replace
missing teeth when insufficient teeth remain to support fixed
bridges or a patient does not test well for bridge materials.
It is designed specifically to meet the needs of the patient.
Esthetic appearance and speech is restored along with the ability
to eat confidently and efficiently. Partial dentures can be metal
or acrylic-based. Acrylic-based partials are bulkier and do not
stay in place as well as metal partials. Metal partials can be
made with precision attachments that eliminate the use of unsightly
metal clasps. The design process involved in creating a removable
partial (denture) is specific to the patient's needs.
Removable Full Denture: Complete dentures or
Full dentures are used when all the teeth are missing. Complete
dentures can be either "conventional" or "immediate".
The framework of complete dentures may be made of resin, metal
or a combination. Implant supported overdentures are an alternate
to conventional dentures whereby a full dentures is placed over
the dental implants with metal bar/balls that gives better retention.
Caution" most, but not all, acrylic bases contain cadmium,
a toxic substance, as a color stabilizer.
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Statutory Warning: The information is intended
to help you better understand dental conditions and procedures and should
not be construed as specific medical advice or recommendation. The general
information provided here is not a substitute for a consultation with the
dentists. Only personal discussion of your individual needs with a professionally
qualified doctor / dentist will determine the best method of treatment suitable
for you.
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