Abstract
The present technical report aimed to display an alternative incorporation method for ball/stud attachments in mandibular implant overdentures (MIO) to prevent or minimize metal housing debonding and attachment malpositioning. Precoating of metal housings with auto-polymerizing acrylic resin (AAR) and fabrication of straight AAR bars onto metal housings for optimal parallelism were used as new techniques. The glossy flat surfaces of metal housings (matrices) were sandblasted and precoated with a thin layer of AAR in the laboratory. Straight acrylic resin bars (3 cm long and 3 mm in diameter) were obtained and attached to these flat metal housing surfaces using a surveyor. The metal housings carrying the AAR bars were then placed intraorally onto ball/stud attachments, accurately positioned parallel to each other, and perpendicular to the long axes of implants and bound to the MIO with AAR.
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