PMC10299874_01
Intra-oral image showing full coverage provisional restorations with poor oral hygiene, mandibular partial edentulism with knife-edge residual ridge.
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Provisional crowns were made with adequate vertical dimensions of occlusion but with a compromised aesthetic result (Figure 1).
Panoramic radiograph showing deeply impacted multiple teeth and severe alveolar ridge deficiency in the left lower mandibular arch.
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Cone-beam CT scan showing a small amount of bone only in the interdental spaces.
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One implant (11.5 mm in length) was placed between the impacted canine and the first premolar, and the other one (10 mm in length) was placed between the first and second premolars because of the proximity of the alveolar nerve and the low quantity of bone posteriorly, as shown in Figure 3.
Cone-beam CT scan showing an exfoliation and bone loss around the implant placed between the impacted canine and the first premolar. The second implant placed between the first and second premolars is integrated into the bone and dental tissue in contact.
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The second implant, however, was well integrated with the bone and dental tissue (Figure 4).
Panoramic radiograph showing wider fixture placed deep through the impacted canine and first premolar.
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(a) Intra-oral image showing good gingival health around the abutment. (b) Occlusal view of full arch zirconia crowns.
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Healing abutments were connected, and twenty days later, zirconia crowns were performed in association with a custom screw-retained abutment to improve the emergence profile of the crowns (Figure 6).
Panoramic radiograph after 48 months of follow-up. No changes were noted around implants, impacted teeth, or bone levels.
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