Evaluation of open bite closure using clear aligners: a retrospective study

Area of Science:

• Orthodontics
• Dental Technology
• Craniofacial Development

Background:

• Anterior open bite presents a complex orthodontic challenge.
• Clear aligners offer a less invasive alternative to traditional braces.
• Understanding the precise dental and skeletal effects of clear aligner treatment for open bite is crucial.

Purpose of the Study:

• To evaluate the dental and skeletal changes associated with correcting anterior open bite using clear aligners.
• To elucidate the specific tooth movements and skeletal adjustments that contribute to open bite closure with clear aligners.

Main Methods:

• A retrospective cephalometric analysis of 45 adult patients treated for anterior open bite with clear aligners (Invisalign).
• Cephalometric superimposition was used to assess changes in incisor and molar positions, as well as mandibular rotation.
• Inclusion criteria ensured a homogenous patient group with measurable open bite and high-quality records.

Main Results:

• Significant extrusion and retraction of both maxillary and mandibular incisors were observed.
• Statistically significant intrusion of both maxillary and mandibular molars occurred.
• A slight counter-clockwise rotation of the mandible contributed to bite closure.

Conclusions:

• Clear aligners effectively close anterior open bites through a combination of incisor extrusion/retraction and molar intrusion.
• The treatment successfully manages and reduces the vertical dimension in open bite patients.
• Clear aligners represent a viable orthodontic option for anterior open bite correction.