Fillings for baby teeth

Maybe you have just found out that your child has one or more cavities in their baby teeth?

It is normal for parents to have concerns and questions. 

In this blog, we hope to give some answers and reassurance about fillings for baby teeth.


Children can develop tooth decay soon after their baby teeth come through. Prolonged bottle feeding with sweetened drinks, or frequently falling asleep with a bottle of milk or whilst nursing are the most common causes of decay in babies. Cavities usually do not cause pain in the early stages and young children may be reluctant to open wide to let their parents see or brush their teeth. So, it can come as a surprise to find out that your child has a cavity at a young age. 

Why should we fill baby teeth, won't they fall out later anyway?




Baby teeth are important for normal eating and speech development. A healthy smile is also beneficial for a child's self-esteem once they reach school age. 





Once a cavity has formed it usually progresses resulting in pain and infection. If an abscess on a baby tooth is not properly treated the infection can spread to and affect the developing adult tooth underneath.



Baby teeth also maintain the spaces for permanent teeth to erupt into. Although front baby teeth can start to fall out from around 6 years old, the back teeth need to last until around 12 years old. If baby teeth are lost too early other teeth may tilt or drift into the vacant space, forcing the adult teeth to come through crooked. 

If my child has a cavity what are the treatment options?

Fillings

If the decay is in the enamel or dentine layer only (not close to the nerve of the tooth) the decay can be removed and a filling placed in the cavity. 

Basic procedure:

• Smaller cavities in baby teeth can often be cleaned without using local anaesthetic. If the cavity is deep or the tooth is particularly sensitive, a small injection may be required to numb the tooth. For more information, see this blog post: Questions about local anaesthetic
• The decay is removed and the cavity is washed. There will be some mild vibrations and noise at this stage. A suction tip is used to remove water from the mouth, or your child may spit out when required. 
• The clean cavity is dried by blowing air onto it and then the filling is placed.

At Small Bites, we keep up to date with the latest filling materials and techniques. The two most commonly used filling materials for children’s teeth are:

Glass Ionomer Cement  

• Bonds directly to the tooth surface and so helps prevents leakage around the edge of the filling.
• Releases fluoride which can help prevent further decay.
• It is relatively quick and easy to place and is therefore popular for use with young children where cooperation for treatment is sometimes difficult.
• It  is quite brittle and prone to wear and so it is usually used in areas which are not under a lot of pressure from chewing.
• Reinforced Glass Ionomers have recently been developed which can be used in higher stress areas, such as the biting surfaces of the teeth.
• Glass Ionomer is white in colour but, unlike composite, it does not come in various shades to match the teeth more accurately. It also available in other bright colours for use in back teeth, if children prefer this.

Composite filling

• Composite fillings come in many shades which match and blend in well with the tooth. Therefore, it may be advised for front teeth where appearance is important.
• Composite is stronger and more wear resistant then glass ionomer.

• A blue etching gel, used to prepare the cavity surface, is painted onto the cavity surface and washed off after about 30 seconds. 
• A bonding agent painted onto the cavity surfaces. This adheres the filling material to the tooth.
• Next, the filling is placed in the cavity.
• A blue light is often used to give faster setting of the filling.
• The filling procedure takes a bit longer than for glass ionomer.

Your dentist will check the filling, and polish it, if required. Please follow instructions for looking after your teeth following treatment. It is usually advisable to wait half an hour before eating and drinking and to avoid hard, sticky and chewy foods on the same day. 

Pulpectomy

If the decay has started to affect the area containing the nerve of the tooth (the pulp), a pulpectomy is often required. For more information, see this link: Pulpectomy - Root canal treatment for baby teeth

Crowns

Teeth which are too broken down to adequately hold a filling or which have undergone pulpectomy usually require a crown to strengthen the tooth. This will be covered in a future post.

At Small Bites, the exclusive dental care centre for children in Bangalore, we have plenty of experience with young children and work to put them (and their parents!) at ease. If you have any questions or concerns, please contact us.



Don't forget to read our other posts for advice on preventing dental decay:

It's Never to Early to Start Preventing Tooth Decay
What Causes Dental Cavities?
Top Toothbrushing Tips

Root Canal Treatment for Baby Teeth - Pulpectomy

What is a Pulpectomy?

Pulpectomy is the name given to root canal therapy for baby teeth. This is required when decay or injury to a tooth has caused infection of the nerve. The aim is to keep the tooth until the correct time for it to fall out. 

I have been told my child needs a pulpectomy - why can't he just have a normal filling?

It is possible to place a filling in cases where the decay is only affecting the first two layers of the tooth - the enamel and the dentine. 

Diagram is of an adult tooth but illustrates the same stages of decay

Once there is infection within the nerve of the tooth this needs to be dealt with properly. If this is not done the nerve will eventually die and an abscess can occur when the infection spreads outside the tooth. Apart from causing severe pain, dental abscesses can cause fever and other health problems. As adult teeth develop close to the roots of baby teeth untreated infection can spread to and affect the normal development of the permanent teeth.

It's just a baby tooth - wouldn't it be better to pull it out?

Although they are lost early in life, primary teeth, also called baby teeth or milk teeth, are essential in the development and placement of the permanent teeth.

Baby teeth maintain the spaces for permanent teeth to erupt into. If baby teeth are lost too early other teeth may tilt into or take up the vacant space, forcing permanent teeth to come in crooked. 





If the baby tooth is getting close to being pushed out by the adult tooth that replaces it, a pulpectomy may not be advised. This can be judged by looking at an x-ray of the teeth. In this case the baby tooth can be left to fall out naturally or, if there is spreading infection, may need to be extracted.

How is a pulpectomy done?

1. An opening is made through the top of the tooth. If the nerve is not completely dead, local anaesthetic will be required to numb the tooth first - click here for more information on this.
2. The decay and infected nerve are removed. The root canals are cleaned and shaped using small files and then washed and dried. 
3. The empty root canal space is then filled with a paste which is able to resorb as the tooth root loosens to make way for the new adult tooth.
4. A filling is then placed in the top part of the tooth. An x-ray will be taken to check the root filling.

Most teeth with pulpectomies will require a crown (cap), as when the nerve is dead or removed the tooth is more brittle and more likely to fracture. For baby teeth near the back of the mouth a pre-formed metal crown is most often used. This may be done or the same or the next visit.

Will the procedure be difficult for my child to cope with?

Pulpectomies do require slightly more cooperation from your child than for a simple filling. However, as baby teeth have shorter, wider and less complex root canals than adult teeth the procedure is less complicated and takes less time than for root canal treatment in adult teeth. There should be no pain, as long the tooth has been numbed where this is required. Your child might feel a slight tugging sensation while the canals are being shaped using the files. The procedure is usually completed in one visit of approximately half an hour, but make take two visits if the nerve is very infected.

What is the success rate for pulpectomies?

Clinical studies have shown a 78 to 96% success rate with the latest materials use for filling root canals in baby teeth. 

Are there any precautions that should be taken after treatment?

• Avoid eating and drinking for the first 20 minutes.
• If your child had local anaesthetic to numb the tooth they will need to be careful not to bite their lip or tongue until the numbness has worn off.
• On the day of treatment it is best to stick to softer foods that don't require a lot of chewing and avoid very hot food and drinks.
• There is sometimes some mild pain or discomfort as the tooth settles down. This can be relieved using children's paracetomol. (Calpol or Crocin).
• Your child should avoid biting heavily on the tooth until it is restored with a crown, as it may be brittle and prone to fracture.
• The teeth should be brushed normally.

Questions about Local Anaesthetic

Your dentist has told you that your child needs a local anaesthetic at their next visit. You may be worried and have questions. We will discuss many of the common questions in this blog post:

What is local anaesthetic?

Local anaesthetic is a type of medicine given as an injection to temporarily numb a specific area of the mouth. 

How does it work?

Local anaesthesia blocks pain by stopping pain signals being carried by nerves to the brain. This causes a complete loss of pain sensation to a specific area, without affecting the rest of the body. Pressure sensations may still be felt.

Why is local anaesthetic (LA) used in dentistry?

Although shallow fillings can often be completed without LA, it is required for deeper cavities, treatment involving the nerve of the tooth and tooth extractions, among other procedures. Local anaesthetic makes painless procedures possible and therefore makes treatment easier and more comfortable.

What is the difference between local and general anaesthetia or sedation?

General anaesthesia (GA) is used when a patients needs to be asleep for an operation or procedure - this can only be done by a trained anaesthetist in a fully equipped hospital. 

In conscious sedation, a sedative is given either by mouth (tablet or liquid), injection, or inhalation (gas and air). The patient remains awake and responsive but is more relaxed and less anxious. Local anaesthetic is often used in addition to sedation or GA.

Local anaesthetic does not affect consciousness. Only the specific area of the body being numbed is affected.

Is Local Anaestheic safe?

Local anaesthetics are used routinely every day for dental treatment all over the world, with relatively few problems. 

As with all medication, care and attention must be taken to ensure local anaesthetic is used safely. Good dentists will use safe techniques carefully and inject slowly. To ensure a safe dose a child's size and weight need to be taken into account, as the maximum safe dose is lower for children than for adults.

Allergies to commonly used dental local anaesthetics are extremely rare. Allergies to preservatives used in LA have been known, although they are not common.

Epinephrine (adrenaline) is commonly added to local anaesthetics as it increases the duration of the numbing effect and also reduces bleeding. For patients with significant heart or thyroid problems LA without epinephrine may be used.

From what age can children be given LA?

Very young children are sometimes unable to cooperate for treatment with local anaesthetic. This is because they do not understand the numb feeling or the reason for it. With reassurance and explanation appropriate to the child's age, some children as young 3 years old can accept treatment with local anaesthetic. For young children who unable to cooperate, temporary treatment may be done to make the child comfortable until they are able to accept further treatment. If there is severe infection treatment under general anaesthetic may be required.

What if I or my child are worried about the injection?

Anxiety about injections is common and understandable. Finding a good dentist who is understanding and sympathetic will go a long way in reducing anxiety.  Relaxation or distraction techniques can be used. For very anxious patients, conscious sedation with inhaled nitrous oxide and oxygen may be an option. Talk to your dentist about your anxieties but try not to convey your worries to your child. In our experience at Small Bites we have found that the children are often are less anxious than their parents!

How can the dentist make it easier for my child?

Local anaesthetic should ideally be used when a child is cooperative and has accepted other treatment well.

Explanation and reassurance are very important. For a young child the dentist may say that they are going to give some special medicine or "sleepy juice" to make the tooth go to sleep for a while, so that they don't feel any pain while the tooth is fixed. Older children with more understanding may be told that this involves an injection.

A numbing gel placed on the gum for a couple of minutes before the injection often works very well, so that the injection is hardly felt. At Small Bites we also use a very fine needle which minimizes pain or discomfort during injection. 

It is necessary to wait 5 or 10 minutes to give the local anaesthetic time to work before starting treatment.

How long does the numb feeling last for?

This will depend on the technique used but usually between 1 and 3 hours. It should be explained to the child that their lip/cheek (and sometimes also tongue) will feel strange. The affected area will feel swollen/bigger but not look any different.

What precautions should I take after my child has had local anaesthetic?

Tell you child that the numb feeling will take some time to wear off. Care should be taken that they do not bite their lip or tongue during this time. Hot food and drink and any food that they need to chew should also be avoided until the feeling has returned.

If you have any other questions you can either talk to your dentist or leave a comment below.

Every Child Deserves a Beautiful Smile

Every child deserves a beautiful smile

The anterior teeth in children have two very important function .
1) It helps in speech development
2) Aesthetics

Now a days with increased exposure to electronic media the kids are becoming more aware of the way they look at a much earlier age. Hence, It becomes very important we as parents understand their concept of self image and help them built their confidence.



The anterior or the front teeth in children can gat damaged and look un aesthetic due to one of these reasons
1) Decay especially Early childhood caries
2) Fall or fracture of the teeth
3) Crooked or missing teeth

All these can be corrected by a simple visit to the pediatric dentist. Few of the general treatment options are

1) Composite restorations
2) Strip crowns
3) Removable dentures
4) Pre formed crowns

Final treatment plan for a child is custom designed based on the childs oral health. After all every child surely deserves a beautiful and healthy smile.