Related Experiment Video
Updated: Mar 25, 2026
Oral Biofilm Formation on Different Materials for Dental Implants
Published on: June 24, 2018
Bacteriological evaluation for one-and two-piece implant design supporting mandibular overdenture
Ahmed Abdelwahed1, Ahmed I Mahrous2, Mohamed Farouk Abadallah3
1Department of Prosthodontics, Faculty of Dental Medicine, Future University, Egypt.
Background:
This study evaluated and compared the bacteriological effect of two-piece implants and one-piece implants in complete overdenture cases on supporting structures.
Materials And Methods:
Ten male completely edentulous patients were selected and randomly divided into two equal groups according to the implant design and surgical technique for this study; Group 1: Patients were rehabilitated with complete mandibular overdenture supported by two-piece implants one on each side of the lower arch following two-stage surgical technique and Group 2: Patients were rehabilitated with complete mandibular overdenture supported by one-piece implants one on each side. Evaluation was made at the time of insertion, 6, 12, and 18 months after overdenture insertion, by measuring bacteriological changes around implants abutments.
Results:
Complete overdenture supported by one-piece implants showed better effect on the bacteriological changes as compared to that supported by two-piece implants.
Conclusion:
Complete overdenture supported by one-piece implants one on each side of the lower arch showed better effect on the bacteriological changes than using the same prosthesis supported by two-piece implants.
