Correcting Edge-to-Edge Bite and Lower Crowding with Invisalign
This case demonstrates the treatment of a 44-year-old male patient presenting with Class I malocclusion, edge-to-edge bite, mild anterior open bite, and lower crowding. The patient's small lateral incisors created a Bolton discrepancy, contributing to the open bite in the anterior lateral region. Through the use of Invisalign aligners combined with a strategic lower incisor extraction, the patient achieved improved alignment, corrected bite relationship, enhanced speech, and restored functional ability to bite and tear food properly.
Patient Overview
Patient D.M., a 44-year-old male, presented with concerns about the appearance of his smile, lower tooth crowding, bite difficulties, and a mild speech issue. The patient's primary malocclusion classification was Class I, with notable edge-to-edge bite and mild anterior open bite localized where the lateral incisors are positioned. The patient's small lateral incisors contributed to a Bolton discrepancy, which affected the anterior bite relationship and created spacing irregularities in the open bite region.
Chief Complaint
The patient's primary concerns included aesthetics, lower crowding, bite problems affecting his ability to bite into things properly, and a mild speech issue. He expressed frustration with the appearance of his anterior teeth and the functional limitations caused by the edge-to-edge bite relationship and mild open bite.
Diagnostic Findings
Clinical examination revealed lower anterior crowding and an edge-to-edge bite relationship. The patient presented with small lateral incisors, which created a Bolton discrepancy and contributed to a mild anterior open bite localized in the region of the lateral incisors. This combination of factors affected both the aesthetic appearance and the functional capacity of the anterior dentition. No skeletal discrepancies, growth-related issues, or facial development concerns were identified in this adult patient.
Treatment Options Considered
Several treatment approaches were discussed with the patient, including traditional braces, Invisalign clear aligner therapy, and the option of extraction to address the crowding and Bolton discrepancy. Each option was evaluated based on the patient's clinical presentation, aesthetic preferences, and functional goals.
Selected Treatment Plan
The final treatment plan was selected based on the patient's preference and aesthetic considerations. Invisalign clear aligner therapy was chosen as the primary treatment modality, combined with a lower incisor extraction to address the crowding and help resolve the Bolton discrepancy. This approach allowed for discreet treatment while achieving the necessary tooth movement to correct the edge-to-edge bite and align the lower anterior teeth.
Procedures Performed
Treatment was carried out over an 18-month period using Invisalign clear aligners. A lower incisor extraction was performed to relieve the lower anterior crowding and help balance the tooth size discrepancy created by the small lateral incisors. Elastics were utilized during treatment to assist in correcting the bite relationship and establishing proper overbite and overjet. The patient progressed through the aligner series with regular monitoring and adjustments as needed to achieve the planned tooth positions.
Materials and Technologies Used
The treatment utilized Invisalign clear aligner therapy as the primary orthodontic system. Elastics were incorporated into the treatment mechanics to aid in bite correction. Following active treatment, Vivera retainers were provided to maintain the achieved results and ensure long-term stability of the corrected alignment and bite relationship.
Clinical Challenges
No significant clinical challenges or complications were encountered during the course of treatment. The patient's case progressed smoothly through the planned treatment phases.
Final Outcome
At the completion of treatment, the lower anterior teeth were fully aligned, resolving the initial crowding. The patient's bite relationship was corrected, with establishment of a normal overbite and overjet, eliminating the previous edge-to-edge contact. Functionally, the patient reported being able to bite into and tear food with greater ease compared to before treatment. The patient's speech improved, addressing the mild speech issue that had been present initially. The patient expressed satisfaction with the appearance of his teeth. His oral hygiene also improved throughout the treatment process. The patient was provided with Vivera retainers to maintain these results long-term.
Clinical Lesson for Other Dentists
This case illustrates the effective use of clear aligner therapy in an adult patient with a combination of crowding, edge-to-edge bite, and mild open bite related to a Bolton discrepancy. The strategic extraction of a lower incisor allowed for resolution of the crowding while helping to balance the tooth size discrepancy created by the small lateral incisors. The case demonstrates that when patient preference and aesthetic considerations are prioritized, clear aligner treatment can successfully address both functional and cosmetic concerns in adult patients. The use of elastics in conjunction with aligner therapy was effective in correcting the bite relationship and establishing proper overbite and overjet. Comprehensive treatment planning that accounts for tooth size discrepancies and bite relationships can lead to functional and aesthetic improvements that enhance patient confidence and quality of life.
Treatment Results
- Lower anterior crowding completely resolved through strategic lower incisor extraction and aligner therapy
- Edge-to-edge bite corrected with establishment of normal overbite and overjet
- Mild anterior open bite in the lateral incisor region eliminated
- Bolton discrepancy addressed through extraction approach
- Functional ability to bite into and tear food restored
- Mild speech issue improved following alignment correction
- Patient reported satisfaction with the aesthetic appearance of his teeth
- Oral hygiene improved during and after treatment
- Patient confidence increased following treatment completion
- Vivera retainers provided for long-term stability and retention
Before and After Photos
Before
After
Frequently Asked Questions
What is an edge-to-edge bite and why does it cause problems?
An edge-to-edge bite occurs when the upper and lower front teeth meet directly at their edges rather than the upper teeth overlapping the lower teeth. This can make it difficult to bite into and tear food properly, and in some cases can contribute to speech issues and uneven tooth wear.
What is a Bolton discrepancy and how does it affect treatment?
A Bolton discrepancy refers to a mismatch in the sizes of the upper and lower teeth. In this case, the patient had small lateral incisors, which created a size imbalance between the upper and lower arches. This contributed to the open bite in the anterior lateral region and required strategic extraction planning to achieve proper alignment and bite relationship.
Why was a lower incisor extracted instead of using other methods to address crowding?
The lower incisor extraction served two purposes in this case. It relieved the lower anterior crowding and helped balance the tooth size discrepancy created by the small lateral incisors. This approach allowed for correction of the bite relationship while maintaining aesthetic results that met the patient's preferences.
Can Invisalign effectively correct bite problems in addition to straightening teeth?
Yes, Invisalign can be used to address bite problems when combined with appropriate treatment mechanics. In this case, elastics were used along with the aligners to help correct the edge-to-edge bite and establish a normal overbite and overjet. The treatment successfully improved both the alignment and the bite relationship over the 18-month treatment period.
What are Vivera retainers and why are they important after treatment?
Vivera retainers are clear retainers designed to maintain the results achieved during orthodontic treatment. They are important because teeth have a natural tendency to shift after orthodontic treatment. Wearing retainers as directed helps ensure that the corrected alignment and bite relationship remain stable long-term.
Related Dental Services
No additional related services are available at this time.