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Comparison of crestal bone loss and radiographic bone density change around immediate functional versus non-functional loaded dental implants: A parallel group randomized clinical trial
International Conference on Restorative Dentistry and Prosthodontics
Some studies comparing immediate functionally loaded and non-functionally loaded implants have found a significant
difference in crestal bone loss and implant survival rates while some others have found immediate functionally loaded and
non-functionally loaded implants to be comparable with respect to the same parameters. The previous studies only illustrate
the lack of consensus regarding the loading protocol for immediately loaded implants. There exists a dilemma regarding
the protocol for immediate loading; this prospective experimental study was conducted to determine whether there exists a
difference in bone response with respect to immediate functional and non-functional loading. The study sample consisted of
120 subjects who were partially edentulous in the mandibular arch and were randomly divided into 2 groups, each consisting
of 60 subjects. Group I subjects were restored with implant system with immediate functional loading and Group II with
implants system with immediate non-functional loading. Both groups were evaluated at baseline, 3 months and 6 months for
crestal bone level changes and radiographic bone density changes. It was concluded from the study that immediate loading of
implants helped to stimulate bone ossification around implants at the lateral apical level at 3 and 6 months and at the crest from
3 months to 6 months. Furthermore, the immediate functional loading of implants resulted in a significantly greater degree
of bone demineralization at the alveolar crest from the time of implant placement up to 3 months compared with immediate
nonfunctional loading.