An Interocclusal Recording Method for the Fabrication of Full-Arch Implant-Retained Restorations
The prosthetic rehabilitation of full arches with implants requires exact impression and bite registration. In this report, we describe the application of a simple method that uses a duplicate of the full denture as a mounting guide, which allows the accurate recording of the maxillomandibular relationship and bite registration while expediting this process for the treating dentist. Case reports of 2 patient are used to illustrate this method, which is independent of the implant system used, can be applied for both fixed and removable restorations, and reduces chair time.
Figure 1. Case 1: full denture in situ. (a) Front view. (b) Right view. (c) Left view showing Akers clasp. Figure 2. Case 1. (a) Orthopantomograph before implant placement. (b) Orthopantomograph after implant placement.
Figure 3. Case 1. (a) Duplicate denture (DentDu). (b) DentDu in situ during try-in. Figure 4. Case 1 impression system. (a) Left: titanium impression post (mounted on the implant) and Right: plastic impression sleeve. (b) Impression sleeve left in the impression material. (c) Composite-embedded in vitro section of the impression system.
Case 1. (a) Ball attachments mounted on implants 20 and 29. (b) Ball attachment 1 week after implant ucovering. (c) Positioning the duplicate denture (DentDu) over the ball attachments and retention elements. (d) Retention element embedded in the DentDu.
Figure 6. Case 1. (a) Bite registration using the duplicate denture. (b) Buccal view and (c) Interior basal view of the element embedded in the patient's denture base. Figure 7. Case 1. (a) Master cast. (b) Laboratory ball attachment mounted on the implant analog in the master cast. (c) Placement of the duplicate denture on the articulator.
Case 1. (a) Fabrication of a silicon key. (b) Silicon key for the selection of the implant abutments. (c) Orthopantomograph showing the mounted implant abutments.
Case 1. Final restoration of the mandible in situ and old maxillary telescopic denture with new veneering. (a) Front view. (b) Right view. (c) Left view. (d) Orthopantomograph.
Case 2. (a) Full denture in situ. (b) Duplicate denture in situ during try-in. (c) Orthopantomograph after implant placement.
Figure 11. Case 2. (a) Ball attachments mounted on implants 6 and 11. (b) Retention element embedded in the duplicate denture. Figure 12. Case 2. (a) Bite registration using the duplicate denture (DentDu). (b) DentDu mounted on the articulator. Figure 13. Case 2 final restoration in situ. (a) Front view. (b) Right view. (c) Left view. Figure 14. (a) Orthopantomograph showing the mounted implant abutments. (b) Orthopantomograph showing the mounted implant abutments.
Contributor Notes