Immediate and delayed loading of fixed dental prostheses supported by single or two splinted implants: a histomorphometric study in dogs
G. Cesaretti, N.P. Lang, P. Viganò, F. Bengazi, K.A. Apaza Alccayhuaman, D. Botticelli
The objective of this study was to evaluate the osseointegration and the mineralized bone-to-implant contact in immediate and delayed loaded implants compared to no-loaded implants, also evaluating the difference between single and two splinted implants.
The research was performed on molars and premolars loaded with fixed dental prosthesis applying not only axial but also lateral loads on implants, ordinary loads in chewing.
In case of immediate loading the prosthesis was delivered 48 hours after implant insertion, while in case of delayed loading the prosthesis was delivered 3 months, performing sacrifices and histological analyses three months after loading.
According to the histologic and histomorphometric studies delayed loading of both single or splinted implants yielded higher proportions of mineralized bone-to-implant contact already after three months, and both protocols yielded a higher rate of osseointegration and bone density compared to not loaded implants.
