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Taken to assess the dentition, gauge the quantity of bone and check anatomical structures.
Note the generalised degradation of the periodontal bone levels.
Note the prominent mental foramen and ID canals.
|CT scan of the mandible to determine depth and 3D anatomy of mental foramen which in this instance was 12.5mm.|
|CT scan of the mandible to demonstrate the bone height and width in the anterior region. In this view the mandibular bone is of sufficient height and width for an implant without the obvious need for bone grafting.|
|Immediately post surgery OPG taken to confirm positioning of implants. The OPG demonstrates the satisfactory placement of 6 implants in the maxilla and 5 implants in the mandible. There appears to be sufficient space from anatomical structures; maxillary sinuses, ID canals and mental foramina. Not slight angulation of implant 35 to avoid mental canal canal.|
Front view of articulated study models. Note the lower median spacing due to the loss of the lower centrals.
Front view of articulated immediate dentures. Vertical dimension maintained, with premolarised balance occlusion.
The diagnostic restoration has no flanges to avoid damaging the labial plates.
|Lower and upper views of articulated immediate
Note the shortened premolarised occlusion. This was to allow the patient to adaptto a shorter dental arch and narrower occlusal table.
|These dentures will be inserted immediate together
with the immediate implant placement, immediate
loading is not intended.
The dentures will be used as a diagnostic to the definitive implant supported restoration. Note full complement of lower centrals
|Lips at rest. Note the competent lip at rest. Also sunken appearance of lower third of face and deep labial fold at the oral commissure.|
|Full smile. Note the low lip line and protruded upper left central.|
|Generalised advanced periodontal destruction. Also the large space between the remaining lower central incisors.|
|Note the tongue position - could suggest a tongue thrust which has exacerbated to protrusion of the periodontally compromised lower incisors.|
|Note protrusion of the UL1 and protrusion and irregularity of the lower incisors.|
|Frontal view post surgery with dentures in- situ.|
|Right retracted view.|
|Left retracted view post surgery with
dentures in-situ for 6 months after implant
placement and extraction..
Note: the even contact in occlusion.
|Ridged acrylic verification jigs are made on
the implant abutments positioned on the
The verification jigs are then tried in the mouth to confirm the accuracy of the transfer impression used to produce the model before proceeding to framework fabrication.
|The fabricated frameworks are tried in the
mouth to confirm fit.
The upper and lower six anterior teeth are applied to the frame work. This allows the position, size and shade of the teeth to be confirmed in the mouth for patient approval. Adjustment in incisal level and cant made and centre lines confirmed.
|Definitive restoration should be a match to the diagnostic as determined at the start of treatment.|
|The improved soft tissue support and corrected vertical dimension have resulted in a corresponding improvement in the oral commissure compared to the start picture below.|