2023, Vol. 7 Issue 4, Part A
Abstract: Objectives: This study aims to evaluate the effect of different implant position (2 implant in lateral position, 2 implant in canine position and 2 implant in first premolar position), and attachment types on the retention and support of implant retained overdentures.
Methods: Throughout this experimental effort, a total of five mandibular edentulous arch replicas were used. Seven dental implant analogues were placed in this model in order to replicate the tooth location seen in the normal dentition. In this investigation, 35 titanium dental implant analogues from Dentium (South Korea) were used. Ten overdenture housings in all, each with a different kind of connection (magnetic and positioner attachment), were created using acrylic resin from 3D printers. These attachments had three loops on them, which were fastened to the housing's occlusal surface. Three chains were then attached to the loops and a force gauge testing apparatus. This setup was designed to calculate the peak stress, given in Newtons, required to separate or loosen the connection. Pressure sensors were utilised to measure the amount of strain placed on the ridge as a result of unilateral and bilateral application of a vertical load (50 n). The research has looked at two different types of attachments: positioner attachments and magnetic attaches. The study looks at how implant placement affects implant-retained overdenture support and retention. Research is to evaluate the support and retention offered by overdentures held in place by implants, with an emphasis on the impact of different attachment methods. Support was measured unilaterally and bilaterally in the research, whereas retention was examined in three force directions: vertical, oblique, and anterior-posterior.
Results: An independent t-test comparing positioner and magnetic attachment revealed that positioner was more retentive and supportive than magnetic in the three dislodgement test directions as well as under unilateral and bilateral stress (p<.05).
Conclusion: Changes in implant location affect an implant-held overdenture's retention and support differently, depending on the attachment technique used.