ALIGN Orthodontics of Quincy

(617) 471-0394

909 Hancock Street, Quincy MA 02170

Dr. Yong Ding DMD PhD Orthodontist


Orthodontic Disorders

 

Crossbite

Crossbite can occur in the front and/or the sides of the mouth: One or more upper teeth bite on the inside of the lower teeth. This can occur with a single tooth or multiple teeth. Early correction of crossbite is recommended.

Crossbite should be corrected because it can:

cause premature wear of the teeth
cause gum disease including bone loss
cause asymmetrical development of the jaws
cause dysfunctional chewing patterns
make your smile less attractive

 

Before

After

If there is a single tooth crossbite, the tooth can be moved with braces into the correct position. In some cases, a retainer can be utilized. With multiple teeth in crossbite, the arch needs to be expanded with braces or other intra-oral appliances.

 

Openbite

Openbite is an insufficient vertical overlap of the teeth. It is caused by oral habits such as tongue thrust, digit sucking or when the jaws don't grow evenly. Timing of treatment is critical to the overall success of the therapy.

Openbite can be corrected through growth modification of the jaws using braces, extrusion of the anterior teeth and in some cases surgical correction of the jaws. Also breaking oral habits, such as digit sucking, will facilitate the correction of an openbite.

 

Before

After

 

Overbite

Class II Overbite

Overbite occurs when the upper front teeth protrude over the lower front teeth. Generally there is no contact between the upper and lower front teeth. Often you cannot see the lower incisors. Overbite is due to a disproportionate amount of eruption of front teeth or over development of the bone that supports the teeth and a front to back discrepancy in the growth of the upper or lower jaw (Class II Relationship). Overbite is also known as a deep bite.

Overbite should be corrected because it can:

cause improper functioning of your front teeth
result in the lower front teeth biting into the gum tissue of the upper palate leading to tissue problems
unusual wear of the lower front teeth
cause jaw or joint problems
make your smile less attractive

Overbite can be corrected through moving the front teeth up and/or bringing the back teeth together, which will "open" the bite so the teeth are properly aligned and the deep bite is eliminated.

 

Overjet

Class II Overjet

Overjet is also known as protrusion. In this case, the lower teeth are too far behind the upper front teeth. This can be caused by an improper alignment of the molars (Class II Relationship), a skeletal imbalance of the upper and lower jaw; flared upper incisors, missing lower teeth or a combination of all the above. In addition, oral habits such as thumb sucking, finger sucking or tongue thrusting can exacerbate the condition.

Overjet should be corrected because it can:

prevent proper functioning of the front teeth
lead to premature wear
make your smile less attractive

Overjet can be corrected through growth modification using a functional appliance and/or elastics to reduce the skeletal imbalance or extraction of teeth.

 

Underbite

 

Class III Underbite

The lower teeth protrude past the front teeth. An underbite is usually caused by undergrowth of the upper jaw, overgrowth of the lower jaw, or a combination of the two (Class III Relationship). Underbite can also be caused by flared upper incisors, missing lower teeth or a combination of all the above. Early correction of underbite is recommended.

Underbite should be corrected because it can:

prevent proper functioning of the front teeth or molars which can lead to premature wear of the teeth
cause chewing or eating problems
cause jaw or joint problems
make your smile less attractive

Underbite can be corrected through growth modification of the jaws, extraction of teeth and in some cases, surgical correction of the jaws.

 

Impacted Teeth

Impactions can be caused by improper positioning of the developing tooth bud. This can cause the tooth to fail to erupt into the mouth. Impactions can also be caused by early loss of primary teeth or crowding of teeth. Wisdom teeth are the most commonly impacted teeth. Canines and premolars can also be impacted. 

Impacted teeth should be corrected because it can:

cause damage to the root structure of adjacent teeth
interfere with the sinus cavity
leave unwanted spaces
lead to improper functioning of the teeth
cause premature wear of the teeth
case asymmetric alignment of the teeth

How can impacted teeth be orthodontically corrected?

Usually the impacted tooth is exposed over the course of a few months and brought into the correct position of the mouth. Correction of impacted teeth may involve a minor surgical procedure performed by an oral surgeon working closely with our practice. This will allow us to then guide eruption of the impacted tooth into proper position.

 

Missing Teeth

Missing teeth is the absence of a tooth or teeth that should normally be present. This can be caused by trauma or lack of development. 

Missing teeth should be corrected because it can:

cause improper functioning of teeth
cause premature wear of teeth
leave unwanted spaces
make your smile less attractive

How can missing teeth be orthodontically corrected?

Depending upon the situation, the space can be closed with braces or opened for tooth replacement. A bridge or dental implant are restorative options if a space is created.

 

Crowding of the Teeth

Crowding is the lack of space for all the teeth to fit normally within the jaws. The teeth may be twisted or displaced. Crowding occurs when there is disharmony in the tooth to jaw size relationship or when the teeth are larger than the available space. Crowding can be caused by improper eruption of teeth and early or late loss of primary teeth. To discuss crowding and the spacing of teeth in the Quincy  MA area, please feel free to contact us to schedule an appointment.

Crowding should be corrected because it can:

prevent proper cleaning of all the surfaces of your teeth
cause dental decay
increase the chances of gum disease
prevent proper functioning of teeth
make your smile less attractive

 

 

Before

After

Extra space can be created by expansion of the arches or extraction of teeth. Once space is created, braces will eliminate crowding and align the teeth. Correction of crowding can help prevent dental decay and periodontal disease by improving the ability to remove plaque from the teeth.

 

Spacing of the Teeth

Spacing (the opposite of crowding), is an excess of space for your teeth which results in gaps between your teeth. This generally occurs when the teeth are smaller than the available space. Spacing can also be caused by protrusive teeth, missing teeth, impacted teeth or abnormal tissue attachments to the gums.

Spacing should be corrected because it can:

result in gum problems due to the lack of protection by the teeth
prevent proper functioning of the teeth
make your smile less attractive

 

Before

After

The spaces can be closed by moving the teeth together and properly aligning them within the arch.