NEET MDS Lessons
Orthodontics
Anterior Crossbite
Anterior crossbite is a dental condition where one or more of the upper front teeth (maxillary incisors) are positioned behind the lower front teeth (mandibular incisors) when the jaws are closed. This misalignment can lead to functional issues, aesthetic concerns, and potential wear on the teeth. Correcting anterior crossbite is essential for achieving proper occlusion and improving overall dental health.
Methods to Correct Anterior Crossbite
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Acrylic Incline Plane:
- Description: An acrylic incline plane is a removable appliance that can be used to guide the movement of the teeth. It is designed to create a ramp-like surface that encourages the maxillary incisors to move forward.
- Mechanism: The incline plane helps to reposition the maxillary teeth by providing a surface that directs the teeth into a more favorable position during function.
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Reverse Stainless Steel Crown:
- Description: A reverse stainless steel crown can be used in cases where the anterior teeth are significantly misaligned. This crown is designed to provide a stable and durable solution for correcting the crossbite.
- Mechanism: The crown can be adjusted to help reposition the maxillary teeth, allowing them to move into a more normal relationship with the mandibular teeth.
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Hawley Retainer with Recurve Springs:
- Description: A Hawley retainer is a removable orthodontic appliance that can be modified with recurve springs to correct anterior crossbite.
- Mechanism: The recurve springs apply gentle pressure to the maxillary incisors, tipping them forward into a more favorable position relative to the mandibular teeth. This appliance is comfortable, easily retained, and predictable in its effects.
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Fixed Labial-Lingual Appliance:
- Description: A fixed labial-lingual appliance is a type of orthodontic device that is bonded to the teeth and can be used to correct crossbites.
- Mechanism: This appliance works by applying continuous forces to the maxillary teeth, tipping them forward and correcting the crossbite. It may include a vertical removable arch for ease of adjustment and recurve springs to facilitate movement.
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Vertical Removable Arch:
- Description: This appliance can be used in conjunction with other devices to provide additional support and adjustment capabilities.
- Mechanism: The vertical removable arch allows for easy modifications and adjustments, helping to jump the crossbite by repositioning the maxillary teeth.