Comparison of prefabricated and custom-made bars used for implant-retained mandibular complete overdentures.
OBJECTIVE
To compare prefabricated and custom-made bars used for implant-retained mandibular complete overdentures.


METHODS
Ten completely edentulous patients were selected for replacement with dental implants. Each patient received 2 (press-fit) dental implants, 1 implant on each side in the canine regions of the mandible. The implants were left submerged (unloaded) for a healing osseointegration period of 4 months. The patients were divided into 2 groups, 5 patients in each. Group I patients received maxillary conventional dentures and a mandibular overdenture retained by a cast bar. Group II patients received a maxillary conventional denture and a mandibular overdenture retained by a prefabricated bar. All patients were evaluated clinically and radiographically immediately after overdenture delivery and after 6, 12, and 18 months.


RESULTS
There was more pronounced bone resorption in cast bar group more than the prefabricated bar group and minimal marginal bone loss in the group treated with prefabricated bar.


CONCLUSIONS
The prefabricated bar overdentures showed less bone resorption distal to the implants in comparison with the cast bar implant-retained overdentures, Both the gingival index and the plaque index score were significantly higher in the group treated with the cast bar retained overdenture. The prefabricated bar implant-retained overdenture showed low significant reduction in the bone height after 1 year, and a very highly significant reduction after 18 months.
Abd El-Dayem
Mohamed A
MA
Faculty of Oral and Dental Medicine Misr International University, Cairo, Egypt. abdeldayem_ma@yahoo.com
Assad
Ahmed S
AS
Eldin Sanad
Mohamed Essam
ME
Mahmoud Mogahed
Sayed Abd Al-Hady
SA
D000368:Aged; D016301:Alveolar Bone Loss / Q000145:classification; D015519:Bone Density / Q000502:physiology; D001862:Bone Resorption / Q000145:classification; D000044:Dental Abutments; D003724:Dental Arch / Q000601:surgery; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D003774:Dental Plaque Index; D019094:Dental Prosthesis, Implant-Supported; D003779:Denture Design; D003781:Denture Retention; D003826:Denture, Complete, Lower; D003828:Denture, Overlay; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000601:surgery; D008875:Middle Aged; D009066:Mouth, Edentulous / Q000534:rehabilitation / Q000601:surgery; D016348:Osseointegration / Q000502:physiology; D010512:Periodontal Index
D015921:Dental Implants