Case report: adult Class I, constricted arches, crowding and impacted cuspid

Area of Science:

• Orthodontics and Dentofacial Orthopedics

Background:

• The patient presented with significant dental issues including constricted arches, moderate crowding, and an unerupted, impacted maxillary cuspid.
• Addressing these complex orthodontic problems requires a multi-faceted treatment approach.

Observation:

• Treatment involved the use of the Crozat appliance for arch development and skeletal asymmetry reduction.
• The Crozat appliance facilitated distalization of upper left posteriors, with second molar removal as an adjunct.
• A straight wire appliance was subsequently used for alignment and functional occlusion development.

Findings:

• The combined orthodontic therapies successfully developed the dental arches and corrected moderate crowding.
• Skeletal asymmetry in the sagittal plane was reduced, and a good functional occlusion was achieved.
• Facial balance and lip support were maintained, with excellent periodontal health and no tooth stripping.
• Significant smile improvement was noted, with stable tooth positioning observed over a two-year retention period.

Implications:

• This case demonstrates the efficacy of combined Crozat appliance and straight wire appliance therapy in managing complex orthodontic cases.
• The treatment resulted in a stable, functional occlusion, improved facial aesthetics, and high patient satisfaction.
• The findings highlight the importance of individualized treatment planning in achieving optimal orthodontic outcomes.