TOOTH REPLACEMENT

TOOTH REPLACEMENT

We lose our tooth due to injury or gum diseases or decay which has an impact in our health (unable to chew food properly), appearance and day to day life activities such as speaking. Hence comes tooth replacement a solution to above problems.  There are various means by which tooth can be replaced as explained below.

CROWNS

Dental crown are nothing but tooth shaped caps that are placed over the teeth. Crowns are done for various reasons as mentioned below. These are fixed with the tooth and cant be removed.

Why are crowns placed?

  • Crowns are placed over missing teeth region.
  • Crowns are placed over root canal treated tooth to strength the tooth
  • Crowns are placed over implants
  • Crowns are placed over fractured / cracked tooth
  • Crowns are placed for esthetic reasons such as discolorations
  • Cases where in implant is not suitable.

TYPES OF CROWNS:

There are different types of crown based on material used to manufacture the crown

METAL CERAMIC CROWN:

These are traditional crown used where in there is a metal base which is fused to ceramic top layer. Theses crowns have a few disadvantages. These crowns have a weak link where the two layers are joined hence causing easy fracture of crown. These are bulky due to two layers of material, hence is difficulty to accept by the patient and this means a large portion of tooth is removed. There are chances where due to wear and tear the ceramic portion of tooth reduces there by exposing the metal.

DMLS METAL CERAMIC CROWN:

These are similar to conventional metal ceramic crown but differ in fabrication process. The fabrication done using laser sintering, CAD/CAM allows this to be thin in margin, light weight, high strength and durability.

ALL CERAMIC CROWNS: These are metal free crowns fabricated using high strength ceramics. These are preferred by most of the patients due to advantages.

E-MAX ALL CERAMIC CROWNS:

This crown is fabricated from glass ceramics hence have high strength and durability than that of metal ceramic crowns. Thus they are less likely to fracture in clinical use. These use minimal preparation of the tooth.

ZIRCONIA ALL CERAMIC CROWN:  Zirconia is a type of ceramic made from a metal called zirconium similar to titanium hence making it a good choice for crowns.

Properties and benefits and zirconia:

  • Translucent appearance ensuring close match to your tooth color
  • Less in thickness making it appear as if it comes from the gingival margin
  • High fracture toughness thus making it difficult to crack
  • Are biocompatible
  • Minimal preparation of tooth
  • Resist staining from food as well as resist hot/cold temperature
  • Extremely durable hence do not wear and tear easily.

WHAT IS DONE IN CROWN PREPARATION?

In crown preparation the tooth size is reduced so that the crown placed on top the teeth comes in original tooth size. Followed by impression making of both the arch. Lastly once the crown is ready it is cemented with the tooth.

In single crowns – which is done in cases, over root canal treated tooth, fractured tooth in order to strength them or where a single tooth has esthetic disturbances. Only that particular tooth involved is reduced in size.

 

 

 

 

 

In bridges – which is done in cases of missing teeth where in the neighboring teeth on both side of missing tooth is taken over for support. Here the supporting neighboring teeth are reduced in size. The crown manufactured will come as shown in picture where in the missing teeth crown bridges the supporting tooth crown. These are fixed and cannot be removed.

NUMBER OF VISITS:

Two sitting will be needed, first for preparation of tooth and impression making. Second for crown fixing. Additional visits might be needed in cases of improper impression or post crown fix adjustments.

HOW LONG DO CROWNS LAST?

The crowns last for a long time. Even crown undergo wear and tear as tooth due to usage. Hence the last of crown depends on one’s usage and maintenance.

IS THERE ANY FOOD RESTRICTION?

There is no food restriction except of eating of sticky food like chewing gum, chocolates as these tend to stick  between upper and lower teeth causing the removal of crown.

WHAT SHOULD BE DONE IN CASE CROWN IS REMOVED?

If the crown is removed visit the dentist as soon as possible in two days’ time. If the crown condition is good and can be used the crown can be refixed. If the crown condition is bad we might need to do a new one.

DO CROWN CAUSE SENSITIVITY?

Once the crown is fixed there might be mild sensitivity which goes in a weeks’ time.

COMPLETE DENTURES

Dentures are artificial appliances that are used in all missing tooth replacement.

Partial Dentures are nothing but replacement of one or more missing tooth.

The process for complete denture can be started only after healing of tooth removal which takes about 1 to 2 months’ time.

WHY SHOULD WE WAIT?

Since during healing the underlying bone and soft tissue under goes changes. If enough healing is not done and we start using the denture, the denture might be ill fit by the time healing is over.

NUMBER OF VISITS?

You might need to visit us about 5 times. The reason is as mentioned below.

Additional visits might be needed as when necessary for extra trial or post insertion adjustment

STEPS IN COMPLETE DENTURE:

  • Primary impression is taken
  • Final impression is taken
  • Jaw relation is done
  • Teeth arranged in wax trial is done
  • Final insertion of denture

ADVANTAGES:

  • Cost effective
  • Esthetic

DISADVANTAGES:

  • Bulky, not stable or loose
  • Acceptance by patients is necessary

HOW SHOULD WE MAINTAIN?

Denture should be maintained same as we maintain our teeth.

  • Brush the denture every morning and night using soft bristles
  • Our gums and roof of mouth should be maintained by massaging
  • Rinse the denture before and after every meal
  • When not using the denture, place them in a container with water
  • Denture should not be used during sleep

DIFFICULTIES AND SOLUTIONS:

Dentures feel awkward - it takes time to get used to it

Dentures feel loose - this is only until our cheek muscles and tongue learn to keep them in place. Till then denture adhesives can be used as prescribed by the dentist to keep the denture in place.

Mild irritation or soreness – consult dentist to adjust that area in denture

Difficulty in eating – till we adjust to denture, soft food or small pieces of food can be consumed. As time goes we can eat any food.

DAMAGED DENTURES? NO PROBLEM

Damaged denture can be fixed by the dentist if small.

ILL-FITTING DENTURE AFTER LONG USE?

Ill-fitting of denture happens due to change in the underlying soft tissues. This can be corrected by relining of denture.

IMPLANTS:

This is the perfect solution for missing teeth with no damage to present tooth. Conventional methods such as bridge require the reduction of neighboring tooth for support.  Whereas in implants a small screw made up of bio compatible metal called titanium is inserted into the jaw which supports the crown.

Know more here.

55, V P Rathinasamy Nadar Rd, Viswanathapuram,

Krishnapuram Colony, Tamil Nadu 625002.

98424 43108, 94432 52108, 0452-2521043

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