Malocclusion Types

Malocclusion refers to the misalignment or improper relationship between the teeth of the upper and lower dental arches as they come together when the jaws close.

Common Types of Malocclusions:

• Crowding: This occurs due to a mismatch between the arch length and tooth size, leading to overlapping and displacement of teeth in various directions. Crowding can be categorized as mild (up to 3 mm), moderate (3 to 5 mm), and severe (over 5 mm). Treatment strategies consider factors like soft tissues, facial profile, malocclusion type, dental positions, and the degree of crowding. Mild crowding may be addressed with expansion and proclination, while moderate to severe crowding may require additional techniques and auxiliary tools to achieve the desired outcome.
• Spacing: This is characterized by gaps between teeth and missing interproximal contacts, often resulting from tooth size discrepancies, missing teeth, or habits. Mild spacing might be managed with aligners alone, moderate spacing with retraction, and severe cases may need various techniques including aligners and auxiliary supports. Post-treatment retention and monitoring of any detrimental habits are crucial to prevent relapse.
• Deep Bite: This condition features excessive vertical overlap of the upper incisors over the lower incisors. It can result from multiple factors and might be corrected with aligners if not overly severe. Deep bites have significant functional implications.
• Open Bite: In this condition, there is a lack of contact between the anterior or posterior teeth of the opposing arches. An anterior open bite means the front teeth do not make contact in centric occlusion, while a posterior open bite, less common, involves the back teeth. Open bites may be either dental or skeletal in nature, influenced by soft tissue profiles, arch forms, and jaw angles. Treatment might involve retroclining initially proclined incisors and may require comprehensive evaluation to ascertain the cause, whether dental, skeletal, muscular, or other. Monitoring for the development of a posterior open bite during treatment is crucial, as it may necessitate immediate corrective action.
• Crossbite: A crossbite is when the upper teeth (anterior or posterior) are situated palatally relative to the lower teeth. Identifying whether a crossbite is dental or skeletal is essential for appropriate treatment planning. Dental crossbites, often linked to individual tooth misplacements, can generally be corrected with aligners. Skeletal crossbites, associated with discrepancies in arch width, might require initial treatment with other devices like fixed expanders or surgical intervention.