THE EFFECT OF MAGNETIC AND CM LOCK ATTACHMENTS ON STRAIN AROUND IMPLANTS RETAINED MANDIBULAR OVERDENTURE: A STRESS ANALY SIS STUDY | ||||
| Egyptian Dental Journal | ||||
| Article 20, Volume 64, Issue 4 - October (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), October 2018, Page 3723-3731 PDF (1.12 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2018.79241 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Nada El khourazaty | ||||
| Lecturer of Removable Prosthodontics, Faculty of Dentistry, Cairo University. | ||||
| Abstract | ||||
| Objectives: This in-vitro strain gauge study was conducted to compare between magnetic and CM lock attachments regarding strain induced around two implants supporting a mandibular over denture. Methodology: This study was performed using two implants 3.7mm x 12mm installed at the canine area bilaterally in an acrylic model resembling a completely edentulous mandible. Pick up of the magnetic and CM loc attachments was done followed by loading and measurements respectively. The strain induced around the implants was evaluated during unilateral and bilateral loading at the first molar area using a universal testing machine. Measurements were tabulated and statistically analyzed. Results: loading sides demonstrated significantly higher microstrains around the implants with the two attachments than non-loading sides. CM LOC attachment showed significantly higher microstrains than magnetic attachment for both loading and non-loading sides during unilateral loading. During bilateral loading, a statistically significant higher mean micro strain was recorded in the right implant than the left implant, CM lOC have shown a higher statistically significant mean micro strain than the magnetic attachment for the right implant and no siginificant difference in the left implant. Conclusions: Within the limitation of this in-vitro study, it could be conclude that the attachment type could have an effect on the amount of load that will be transmitted to the implants supporting an over denture. Clinical studies are required to evaluate the effect of type of attachment on peri implant crestal alveolar bone loss and correlate it with the results of the current study. | ||||
| Keywords | ||||
| In-vitro; Strain gauge analysis; magnetic attachment; CM lock attachment Over denture | ||||
|
Statistics Article View: 105 PDF Download: 245 |
||||
