Novel CAD-CAM fabrication of a custom-made ball attachment retentive housing: an in-vitro study.

Purpose: This study aims to evaluate the digitally designed ball attachment housing in its initial retentive force and after 2 years of simulated clinical use and to compare it with the regular nylon ball attachment housing.

Materials And Methods: Twenty implants with their corresponding ball abutments (diameter 4.5 × 4.

Retrospective digital study of mandibular flexure in patients with long-span fixed restorations supported by natural teeth.

Purpose: This retrospective study aims to evaluate the mandibular flexure on a long-span rigid fixed prosthesis supported by natural teeth.

Materials And Methods: Nine patients (five males and four females) were included in this study who had long-span rigid mandibular fixed prostheses for long-term (10-15 years) that have led to radiographic changes around the supporting teeth. The mandibular flexure was measured digitally after adhering reference markers to the prostheses.

Endoscopic removal of an implant from the maxillary sinus: a case report.

Slippage of an implant into the maxillary sinus is an exceptional complication that may occur during immediate implant placement. In this study, removal of a displaced implant into the maxillary sinus with the aid of endoscopy via buccal window approach is reported. Management of such a rare complication is also addressed.