Functional Occlusal Design of Implant Prosthesis

Objective: To investigate the influence of implant-retained prosthetic design on the morphology and function rehabilitation of denture.Methods: 20 patients who had fixed implant-retained prosthesis were selected,the data were analyzed to compare (1) the difference of crestal bone level and bone resorption style of implants,adjacent teeth and opposite teeth,(2) structural change of prosthesis,(3) patient subjective feeling,(4) symptoms of temporomandibular joint,and (5) T-scan biting record,et al.Results and Conclusion: In recent years,significance of occlusion for dental implant treatment has attracted clinician researchers′ attention.The problem of occlusion comes at different stages of implant prosthesis.After occlusal adjustment,wearing occlusal pad,teaching patients to change chew habits,and choosing different food at different prosthetic phases,the occlusal problem of some patients could be resolved and bone resorption was slow down and remodeled.However,some patient,which tooth arrangement and occlusal forms were nomal,were still uncomfortable with traditional treatment.Continuous biting pain,abnormal biting sound,temporomandibular joint ring,masticatory muscle pain and chewing difficult happened on these patient.The following conclusions were drawn within the limits of this pilot study.(1) It must be emphasized that currently there is no evidence-based,implant-specific concept of occlusion,it is more important for implant prosthesis to follow the occlusal morphology standard,which mesio-distal relation(one tooth opposite two teeth) and buccal-lingual relation were correct.(2) Transition prosthesis and periodic occlusal adjustments were suggested.(3) Future studies in this area are needed to clarify the standard of implant-specific concept of occlusion to induce axial loading.