Clear Aligners for Crowded Teeth and Crossbite: A 12.5-Month Case Study
MDS - Orthodontics, 20+ years of experience. Co-Founder of MakeO Toothsi, consultant lingual Orthodontist, inventor of India's 1st CAD/CAM lingual bracket system, and aligners specialist.
Updated on September 17, 2026
At Toothsi, clear aligners are planned around each patient’s individual dental needs, including concerns such as crowded teeth, tooth misalignment, and certain bite issues. This case highlights how a customized clear aligner treatment was planned effectively to help address dental crowding and crossbite through carefully staged tooth movements and clinically planned aligner attachments and auxiliaries.
The patient presented with misaligned teeth along with a crossbite that was affecting his bite and oral hygiene maintenance.
After a detailed clinical evaluation and digital scan, a personalized treatment plan was created to improve alignment, create the required space, and correct the bite, all of this with the use of Clear Aligners. The treatment was completed in 12.5 months with mere three clinical visits and no refinement phase, just as planned!
Read on to understand the patient’s diagnosis, the clear aligner approach used, and the treatment outcome.
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Concern of the Patient
The patient came to us with a major dental problem that was not only affecting his confidence but was also disturbing his oral hygiene maintenance. This chief concern included crowding/misalignment of the teeth; he also had a crossbite teeth, which affected his bite and overall chewing efficiency. After a thorough clinical examination, we recorded a scan and developed a treatment plan using clear aligners.
Diagnosis
The patient was diagnosed with a Class II subdivision malocclusion associated with dental crowding and crossbite.
The primary treatment objectives were to:
- Create adequate space for controlled alignment of the crowded teeth.
- Correct the existing crossbite.
- Establish improved dental alignment and interarch relationships.
- Achieve a stable and functional occlusion through controlled tooth movement.
Customized Treatment Approach
The treatment involved carefully planned and sequential tooth movements using teeth aligners, supported by the following auxiliaries:
- Interproximal Reduction (IPR): Selective reduction of enamel between specific teeth to create the space required for alignment while facilitating controlled tooth movement.
- Optimized Attachments: Tooth-colored attachments were incorporated to provide additional grip and control, allowing the aligners to deliver more precise, predictable forces during treatment.
- Temporary Bite Blocks: Bite-raising elements were incorporated into the aligners, which assisted in discluding the affected teeth and facilitating correction of the crossbite.
- Minimal Expansion and Staging: Tooth movement was carefully sequenced, using minimal arch expansion, IPR, and staged individual movements to improve control throughout aligner therapy.
Treatment Progress
The treatment was completed in 12.5 months, with only three clinical visits. No refinement phase was required.
Final Outcome
After completing clear aligner treatment, the patient showed a perfect dental alignment and successful correction of the crossbite, with satisfactory settling of the bite.
The case shows how a customized aligner treatment plan, incorporating IPR, attachments, bite blocks, minimal expansion, and controlled staging of tooth movements, can address dental crowding and crossbite while minimizing the need for additional interventions and clinical visits.
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Case Highlights
- Primary Concern: Dental crowding and tooth misalignment
- Associated Malocclusion: Crossbite
- Diagnosis: Class II subdivision malocclusion
- Treatment Modality: Clear aligner therapy
- Procedures: Interproximal Reduction (IPR) and attachment placement
- Treatment Approach: Minimal expansion, IPR, bite blocks, and sequential staging of tooth movement
- Treatment Duration: Approximately 12.5 months
- Clinical Visits: 3
- Refinement: Not required
- Outcome: Improved dental alignment, successful crossbite correction, and satisfactory bite settling
Medical Disclaimer
This case study is provided for informational purposes only and does not constitute medical or dental advice. Treatment results, treatment duration, number of visits, and suitability for clear aligners vary from person to person depending on individual dental conditions.
You can choose teeth aligners treatment after an in-person assessment and treatment recommendation by a qualified dental professional. The results shown or described in this case are specific to the individual case and should not be considered a guarantee of similar results for every patient.
