“Double Row Tooth” in Children: When a Permanent Tooth Erupts Before the Baby Tooth Falls Out
Seeing a permanent tooth erupt behind or in front of a baby tooth can be alarming for many parents. This situation, commonly referred to as a “double row tooth,” is actually quite common during the mixed dentition phase and, in most cases, does not represent an emergency. However, it is important to understand when this is a normal stage of growth and when intervention may be advisable.
At the Renata Bakaj Orthodontic Studio in Lugano, cases of double row teeth are evaluated as part of a comprehensive assessment of the child’s dental and skeletal development, in order to decide whether monitoring is sufficient or targeted action is needed.
What a “double row tooth” is and why it occurs
During growth, permanent teeth develop beneath baby teeth and, at the right time, cause them to loosen and fall out. In some cases, however, the permanent tooth does not immediately find enough space or follows a slightly different eruption path, appearing before the baby tooth has fallen out.
This phenomenon is particularly common:
- in lower incisors
- in upper incisors
- in children between 5 and 7 years of age
The visible result is the presence of two teeth side by side or overlapping, one baby tooth and one permanent tooth.
Is it a normal or pathological condition?
In most cases, a double row tooth is a temporary phase of dental development.
Over time, the pressure exerted by the erupting permanent tooth helps the baby tooth fall out naturally, allowing the new tooth to gradually move into the correct position.
However, this process does not always happen automatically. In some situations, the baby tooth remains stable and there is not enough space for proper alignment of the permanent tooth.
When the baby tooth does not fall out on its own
Further evaluation is recommended when:
- the baby tooth remains firm for several months
- the permanent tooth erupts in a significantly misaligned position
- available space is clearly insufficient
- signs of dental crowding are present
In these cases, an orthodontic evaluation helps prevent future problems and allows intervention at the most appropriate time.
Risks of not intervening when necessary
If a double row tooth is not properly managed, the following issues may develop:
- dental crowding
- rotation or tilting of permanent teeth
- difficulty maintaining oral hygiene
- the need for more complex orthodontic treatment later
Early intervention often helps simplify or shorten future orthodontic care.
How the orthodontist intervenes
The approach depends on the child’s age, tooth position and available space.
Possible options include:
- simple monitoring over time
- targeted extraction of the baby tooth
- guidance of permanent tooth eruption
- interceptive orthodontic treatment
At the Bakaj Studio, every decision is made on a personalised basis, with clear explanations provided to parents regarding reasons and expected benefits.
The importance of space within the dental arches
One of the most important factors is the amount of available space.
If the dental arches are sufficiently wide, the permanent tooth has a better chance of aligning naturally. When the palate is narrow or the arches are reduced, the risk of crowding increases.
For this reason, evaluation focuses not only on the individual tooth, but on overall oral development.
The role of parents during the mixed dentition phase
Parents can help by carefully observing:
- the timing of baby tooth loss
- the eruption of permanent teeth
- any difficulties with oral hygiene
Promptly reporting noticeable changes allows for calm and timely intervention, without urgency.
FAQ – Frequently Asked Questions about Double Row Teeth in Children
Is it always a problem?
No, it is often a temporary stage of growth.
Will the baby tooth fall out on its own?
In many cases yes, but not always.
Does the baby tooth need to be removed immediately?
Only if recommended by the orthodontist.
Will the permanent tooth straighten on its own?
It depends on available space and initial position.
When should an orthodontic visit be scheduled?
If the situation persists or crowding becomes evident.