Missing Permanent Teeth: Las Vegas Dentist Advice

Author Name: Dr. Sandra Thompson

Why Are Some Permanent Teeth Missing in Children?

What Does “Congenitally Missing Permanent Teeth” Mean?

In essence, congenital absence of a permanent tooth means that the said tooth has not grown ever since. There is a condition called agenesis wherein dentists refer to a tooth as such. Hypodontia usually pertains to a person who is genetically lacking one or more permanent teeth.

This condition is distinguished from a permanent tooth that grew but was eventually lost due to a number of reasons like injury, dental disease, and extraction.

An individual who has a congenital absence of a tooth may possess a healthy oral cavity. The condition becomes apparent when the child is in mixed dentition where baby teeth are being shed and permanent teeth are emerging.

The effect of the said absence on the child will depend upon the location of the missing tooth and the development of the teeth in the whole oral cavity.

How Is a Missing Tooth Different From a Delayed or Impacted Tooth?

A permanent tooth not coming in does not necessarily mean it never formed.

There are several different situations:

  • Congenitally missing tooth: The permanent tooth did not develop.
  • Delayed eruption: The tooth is present but is taking longer to emerge.
  • Unerupted tooth: The tooth is still below the gums or within the jaw.
  • Impacted tooth: The tooth is present, but its eruption path may be blocked or altered.

Which Permanent Teeth Are Commonly Affected?

Some teeth are congenitally missing more frequently than others. These teeth are usually the second premolar and the upper lateral incisor.

The significance of the missing tooth is not merely based on its name. A Kids dentist will look at the following factors:

  • Tooth spacing
  • The position of nearby teeth
  • Smile appearance
  • Bite development
  • Future orthodontic planning

This would then be followed by determining whether the tooth is truly missing or if it has not yet erupted. The current guidelines for pediatric dentistry suggest that the developing dentition be assessed using clinical diagnosis as well as appropriate radiographic records.

When Might an Orthodontic Evaluation Be Appropriate?

Orthodontic examination is necessary when an unerupted or missing tooth affects spacing and alignment or development of the bite.

In this case, the dentist will refer the child to the orthodontist for examination on whether adjacent teeth have filled the space left or not.

Parents can ask:

  • Is the permanent tooth actually present?
  • Is it developing and positioned normally?
  • Does it have enough room to erupt?
  • Should the baby tooth be monitored?
  • Could this affect my child’s bite?
  • Would an orthodontic evaluation help with planning?

What Are the Care Options for Children With Missing Permanent Teeth?

Can a Healthy Baby Tooth Stay When There Is No Permanent Replacement?

Sometimes a healthy baby tooth can remain when there is no permanent tooth underneath it.

Whether this is appropriate depends on factors such as:

  • Tooth stability
  • Root condition
  • Decay or previous dental treatment
  • Position within the bite
  • Available space
  • The child’s long-term orthodontic plan

Retention of a baby tooth does not mean that the tooth will remain healthy throughout life. Some retained teeth work well for many years, while others may later encounter trouble and be replaced.

Therefore, parents should not base their decision to extract a tooth solely on the absence of the permanent tooth. First of all, the dentist needs to consider what will happen to the place once the baby tooth is extracted.

When Might Orthodontic Space Closure or Space Preservation Be Considered?

One such decision includes either closing or preserving the space.

In case of orthodontic space closure, the adjacent permanent teeth can be moved to occupy the space where the lost tooth was located. There may be other instances where the pediatric dental team decides to either maintain or modify the space for future replacement options.

The choice can depend on:

  • Which tooth is missing
  • Existing crowding or spacing
  • The position of nearby teeth
  • The child’s bite
  • Jaw and facial development
  • Long-term appearance and function

A space maintainer or other appliance is not automatically needed for every child with a missing tooth. Space management should be based on the individual treatment plan.

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