Evaluation of Contour Augmentation in Immediate Single-Tooth Implants With and Without Flaps in the Anterior Maxilla: A 1-Year Prospective Study.

This prospective clinical study involved 20 patients in whom implants were immediately placed in extraction sockets. Residual bone defects were grafted, and the buccal bone plate was overcontoured with a xenogeneic bone substitute and covered by a collagen membrane. One year after implant placement, CBCT images were acquired to evaluate buccal bone, and implant stability was analyzed through resonance frequency analysis.

Clinical Evaluation of the Nasopalatine Canal in Implant-Prosthetic Treatment: A Pilot Study.

Implant-prosthetic rehabilitation of missing teeth in the anterior maxilla is often challenging due to ongoing bone resorption and remodeling events and may require regeneration procedures involving the nasopalatine canal (NPC). We describe a surgical approach with a block graft in relation to the NPC and evaluate clinical performance, sensory perception, and aesthetic result of the implant-prosthetic treatment over a two- to nine-year (mean: 3.5 years) follow-up.

Prospective, Clinical Pilot Study with Eleven 4-Mm Extra-Short Implants Splinted to Longer Implants for Posterior Maxilla Rehabilitation.

In many clinical situations, rehabilitation with implants in the posterior maxillary region is complicated by limited bone availability. In this context, the use of 4 mm long implants (known as extra-short implants) may be used thanks to the concept of osseointegration enhancement. It has been demonstrated that short implants offer an alternative to the regeneration procedures involved in placing longer implants in areas where bone height is compromised.

Comparison of Different Bone Filling Materials and Resorbable Membranes by Means of Micro-Tomography. A Preliminary Study in Rabbits.

The purpose of this work was to evaluate the behavior of different membranes and bone filling materials used to fill critical defects in rabbit calvaria. Four defects were prepared in the cranial calvaria of female rabbits. They were randomly divided into three subgroups according to the type of barrier membrane to be used.

Comparative study of retentive anchor systems for overdentures.

Objectives: This study aimed to evaluate the retention on two or four implants of eight resilient and nonresilient retentive anchors used in overdentures.

Method And Materials: Eight groups of retentive anchors were used: Dyna and Shiner (magnets); Dalla Bona and O-Ring (balls); Ceka Revax and Zaag attachments (studs); the cast bar (Dolder type) system with plastic clips; and the milled bars system. These specimens with their respective overdentures were prepared on two similar acrylic resin models with four implants (3.