PMC3474943_01
Preoperative oral condition: it is noticeable thenonrestorable
left maxillary canine.
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F1
A 68-year-old male patient with a number of contraindications to treatment, such as smoking (>10 cigarettes/day) and chronic periodontitis, was referred to the Dentistry and Maxillofacial Surgery Clinic of the University of Verona with a non-restorable left maxillary canine to be removed due to a crown fracture (Fig. 1).
Implant with mount.
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F2
The implant site was prepared at the bottom of the socket according to standard procedures .A conical implant with an MP-1 hydroxyapatite surface (Tapered Screw-Vent System; Zimmer Dental, USA) was placed completely within the confines of the socket using the sterile surgical technique prescribed by the manufacturer (Fig. 2). After insertion the implant was first unscrewed and later screwed to control the torque between 35 and 50 Ncm and to permit appropriate passivity of the implant in the prepared site (Figs. 2 and 3).
Implant with healing abutment and suture around implant.
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F3
After insertion the implant was first unscrewed and later screwed to control the torque between 35 and 50 Ncm and to permit appropriate passivity of the implant in the prepared site (Figs. 2 and 3).
Provisional resin prosthesis with occlusal stop.
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F4
A provisional composite resin crown was then positioned on the abutment previously created with assessment of adjacent tooth reference points (occlusal stops) and was fixed in the correct position, filling the gap between the provisional crown and the abutment with flowable composite resin (Fig. 4).
Provisional prosthesis cemented with flowable composite
resin.
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F5
The screw-retained structure was connected to the implant to allow maturation and integration of the peri-implant soft tissues and to facilitate osseointegration (Fig. 5).
Soft tissue after one week.
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Soft tissue after five weeks and definitive abutment.
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Master model and mount (occlusal and lateral view).
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F8
A definitive impression was made using a polyether material (Integrum, ESPE Neuss, Germany) and was sent to a laboratory, where a master model was obtained from the impression (Fig. 8).
Postoperative oral condition: it is noticeable the definitive
left maxillary canine.
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F9
The definitive abutment was positioned and screwed to the implant, and the definitive crown was positioned and cemented onto the abutment (Fig. 9).