Fracture incidence in implant-retained mandibular overdenture constructed by either conventional method or CAD/CAM technology- A one year follow up. | ||||
| Egyptian Dental Journal | ||||
| Article 9, Volume 67, Issue 2 - Serial Number 4, April 2021, Page 1417-1422 PDF (240.05 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/edj.2021.51798.1376 | ||||
 View on SCiNiTO | ||||
| Author | ||||
Mahmoud Aly  
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| Lecturer of Prosthodontics, Faculty of Dentistry, Suez Canal University | ||||
| Abstract | ||||
| Fracture incidence in implant retained mandibular overdenture constructed by either conventional method or CAD/CAM technology- A one year follow up. Abstract Purpose: To compare clinically the fracture incidence in overdentures constructed by CAD/CAM technology and compare it with those overdentures constructed by conventional heat cured methods in mandibular overdentures retained by two implants. Materials and Methods: Twenty completely edentulous patients were participated in this study. The patients were randomly allocated to two equal groups of patients (Group A and group B). Group A patients received complete dentures constructed by conventional heat cured technique. Group B patients received complete dentures constructed by CAD/CAM technology. All the patients received two root form implants bilaterally in the canine regions following delayed loading protocol. Locator attachment was then used to retain the overdenture after 3 months healing period. Overdenture fracture was evaluated for the next 12 month after implant loading. Results: Only two overdentures from the conventional overdenture group (group A) experienced fracture at area near to the abutment. Chi-square test indicted that, there is no significant differences in the fracture incidence between the study groups after 12 months observation period (P> 0.05). Conclusion: The incidence of overdenture fractures was not significantly different between overdentures constructed by CAD/CAM or conventional heat curing techniques. When fractures take place, they tended to be in areas close to the abutment. | ||||
| Keywords | ||||
| Implant overdenture; Fracture; CAD/CAM | ||||
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