Dental crowding is the situation where teeth move into an altered position, becoming misaligned because there is not enough space for them in the dental arch. Many patients refer to crowding by saying that their teeth overlap each other.
Classification and types of dental crowding
We usually classify dental crowding into three groups according to its causes (Van der Linden 1974):
1. Primary Crowding: is genetic or originating in the patient; it is produced when teeth are too large or the space available in the bones is too small. It is a discrepancy between the size of the teeth and the size of the jaws.
2. Secondary Crowding: occurs due to external or environmental factors, for example, a cavity provokes the premature loss of a temporary tooth, leading to closure of the empty space and a shortening of the dental arch; hence, the space for eruption of permanent teeth becomes smaller. Another example is that of a supernumerary tooth (an extra tooth that develops in the dental arch).
3. Tertiary Crowding: is late crowding, produced normally toward the end of adolescence. There are many theories about the causes of this type of crowding. What is clear is that individuals with impacted wisdom teeth tend to have more crowding in the anterior zone; this does not imply that the wisdom teeth are the cause of the crowding. It can also be stated that there is a tendency toward crowding in mouths that were previously perfectly aligned. It must be emphasized that the role of the third molars in crowding is not clear; therefore, we cannot justify their extraction as a preventive measure for tertiary crowding.
Solution for dental crowding or overlapping teeth
The treatment is always performed after having done the orthodontic study, diagnosing the real causes and the different types of possible treatments. Factors such as the patient’s age, profile, type of gum (thin or thick) and the inclination of posterior teeth are some of the factors that must be taken into account. Treatment of crowding can be carried out with Invisalign or invisible lingual braces, with esthetic braces or self-ligating braces.
We are always looking for the most conservative treatment of the teeth, but also of the gums; if the lack of space is significant, there is no sense in insisting on no extractions and using treatment that worsens the state of the gums, provoking gingival recessions. Treatment with extractions may include extraction of the lower incisor (more examples can be seen here and here); the extraction of two upper premolars (an example here); or the extractions of 4 premolars (an example here).
There are several approaches to solve crowding:
- Keep space open during the eruption of permanent teeth. For example, with a lingual arch, an appliance that is attached with two fixed bands on the posterior molars.
- Recover the space lost by a closure from a premature loss of baby teeth, using expansion (widening the mouth) or by opening the spaces.
- Create space when there is crowding through expansion plates, palatal expander,2×4 or D-gainer, fixed brackets, etc.
- Extract permanent teeth.
If you have dental crowding or any other problem you would like to solve, don’t hesitate to call us at 932370287, we will be delighted to give you a good solution.
For further information please contact us by telephone (+34) 93 832 72 81.