For giving permanent dental crown to the patient, tooth preparation is required. To protect the prepared tooth, temporary dental crown is given to the patient by the time patient get permanent dental crown fabricated from the dental laboratory. Temporary dental crowns are mostly made of acrylic and protect the prepared tooth structure. Apart from acrylic, temporary dental crown can also be made of stainless steel and polycarbonate. It is necessary to give temporary Dental crown after tooth preparation. Temporary dental crown will avoid the sensitivity to hot and cold food stuffs to the prepared tooth and will prevent any damage to the prepared tooth. Temporary dental crowns will also avoid food accumulates around the prepared tooth and will fulfill the esthetic requirement of the patient. Temporary dental crowns are also used for baby teeth. Temporary dental crown is given after tooth preparation for giving dental bridge or dental crown to the patient or is given on the abutment attached to the dental implants.
Temporary Dental Crown on Abutment
Uses of Temporary Dental Crown
1. To avoid sensitivity to hot and cold food stuffs and dental pain to the prepared tooth. During tooth preparation, dentin of the tooth is exposed. If temporary capping is not given to the tooth, then it can lead to ingress of harmful substances through dentin into the pulp.
2. To prevent teeth adjacent to the prepared tooth and prepared tooth from shifting and to prevent over eruption of the opposing tooth to prepared tooth.
3. To prevent any food accumulation and deposits around the prepared tooth, it is necessary to give temporary dental crowns after tooth preparation. Food deposits can further lead to damage to periodontal tissues.
4. Prepared tooth without any temporary crown will look unaesthetic in case of front teeth.
Because of all these reasons, it is necessary to give temporary crown after tooth preparation before giving permanent dental crown to the patient.
Temporary Dental Crowns for Baby Teeth
Baby teeth require less tooth reduction for crown placement and cannot be reduced to greater extent because of chances of inadvertent pulpal exposure. Temporary dental crowns are given for baby teeth.
Preparation of Temporary Dental Crown
To make temporary dental crown, impression of the prepared tooth and opposing tooth is taken and a mold is made of this impression. Chemically cure composite, is commonly used to make temporary dental crowns. In earlier days, pre-made aluminum crowns were used as temporary dental crowns. Temporary dental crown is glued to the prepared tooth with soft, removable, temporary cement. Cement will hold the temporary dental crown in its place. Excess cement can then later be removed. It is the dental hygienist or dental assistant which prepared the temporary dental crown.
Precautions to Be Followed After Getting Temporary Dental Crown
1. After cementation of temporary dental crown, patient is advised not to chew for half and hour after getting temporary dental crown as temporary dental crown takes half an hour to set completely.
2. Patient is advised not to bite too hard over temporary dental crown as temporary dental crowns are not that strong.
3. Sticky foods are to be avoided with dental crowns by the patient as it causes dental crown to come off easily. Temporary dental crowns come off easily because they are glued with temporary cement. They are fixed with temporary cement to facilitate their easy removal at time of permanent crown placement.
4. Patient is advised not to floss around the temporary dental crown area and is advised to brush gently over that area with a soft tooth brush. Flossing can lead to snapping of dental crown and dental crown may come out on flossing. Patient is advised to maintain good oral hygiene. Patient should avoid chewing gums with temporary dental crowns.
What to Do If Temporary Dental Crown Comes Off
It may happen that the temporary dental crown falls off early. In such a case, patient should visit his dentist to get the temporary dental crown glued to the underlying tooth structure. If the dental office is closed, then patient can get the temporary dental crown cemented in place with tooth paste, Vaseline or some temporary cementing material available on the counter. Patient should avoiding eating from the side of dental crown. If Vaseline or tooth paste is used to fix the temporary dental crown, then the dental crown should be removed during sleeping and eating. Dental hygienist or dental assistant can also be approached to re-cement the temporary dental crown to the tooth structure if still longer time is required for fabrication of permanent dental crown. To prevent movement of teeth adjacent to prepared tooth, it is important to re-cement the temporary dental crown to the tooth structure. If there is shifting of teeth, then the permanent dental crown may not fit properly.
Common Problems with Temporary Dental Crown
1. Sensitivity To Hot And Cold Food Stuffs
Patient may experience increased sensitivity to hot and cold food stuffs with temporary dental crown fitted to the tooth structure. Temporary dental crowns don’t fit that well as compared to permanent dental crowns and a space is present at the gum line which can cause percolation of various irritants and sensitivity to the tooth. If patient feels sensitivity to hot and cold food stuffs with temporary dental crowns, then he should not worry as temporary dental crowns are to be replaced with permanent dental crowns.
2. Gum Tissue Irritation
Gum tissue irritation may occur with temporary dental crowns. Temporary dental crown is given in the same appointment as the day of tooth preparation so the ends of the dental crown end at or below the gum line causing irritation. For some pain relief due to irritation of gums, patient can do warm saline rinses 3-4 times a day.
3. Problem with Bite of Temporary Dental Crown
Patient may find bite of temporary dental crown high. If that is the case, patient can get the bite corrected from his dentist. Dentist will do selective grinding to correct the bite of temporary dental crown.
4. Pain In the Tooth
Patient may feel pain after getting temporary dental crown. If patient experiences some pain after getting temporary dental crown, then he should consult his dentist. Dentist may prescribe some pain medicament for some pain relief.
Color and dimensions of temporary dental crown are not same as permanent dental crown
Difference between Temporary Dental Crowns and Permanent Dental Crowns
Permanent dental crowns are prepared in laboratory whereas temporary dental crown is made in dental office.
Temporary dental crowns are made of acrylic or stainless steel whereas permanent dental crowns are made of porcelain or metal or both metal and porcelain.
Temporary dental crowns are given to the patient until the patient gets permanent dental crown fabricated from the dental laboratory.
Time Gap between Temporary Dental Crown and Permanent Dental Crown
Patient will have to wear temporary dental crown for around 2-3 weeks. After 2-3 weeks, permanent dental crown can be given to the patient.
Cost of Temporary Dental Crown
Price of temporary dental crown is commonly included in the price of permanent dental crown.