Bar retention is a close alternative to a fixed full-arch prosthesis when treating patients with severe resorption without bone augmentation. Pozzi et al.1 restored 18 consecutive patients with class IV-VI resorption (Cawood and Howell) with an anatomically designed CAD/CAM titanium bar and a removable overdenture, all supported by 4 NobelReplace CC implants.
The customized bars were designed using the latest NobelProcera scanner technology and precision manufactured at one of the NobelProcera innovation centers. At 1-year follow-up, 100% implant and prosthetic survival rates in both mandible and maxilla were reported. Excellent bone remodeling (-0.29 ±0.16 mm) was observed, suggesting that splinting the implants with a rigid connecting bar may contribute to a favorable pattern of bone remodeling.
Satisfactory soft tissue parameters (bleeding on probing: 11.1% of patients (n=2) around 3 implants (4.1%)) were also observed. Patients reported great satisfaction and significantly improved oral health-related quality of life as a consequence of the high stability perceived during the masticatory function. The authors attribute this to the bar design and its reduced rotational movements, to the level of a fixed prosthesis.