Abstract:

Objective To study the effect of restoration on posterior occlusal function using fixed partial denture assisted by mandibular movement analyzer. Methods In this study, 16 cases with 39 abutments were selected with unilateral terminal occlusal dissociation at more than 2 dental positions. Effects of fixed posterior partial denture were compared between the traditional technology and digital intraoral scanning & mandibular movement analyzer & virtual articulator system & CAD/CAM technology. The occlusal functions of the two groups were compared by articulating paper imprinting, occlusal adjustment time and T-Scan Ⅲ digital occlusal analyzer. Results ①There were significant differences in the early contact point and occlusal adjustment time of the occlusal surface between the two groups(P<0.01). ②After the adjustment of the two groups of prostheses, both posterior teeth occluded evenly, and no obvious early contact points were found. Conclusion The fixed prosthesis made with the aid of mandibular movement analyzer can more accurately restore the occlusal function of patients. Using mandibular movement analyzer reduces occlusal adjustment time, and helps reduce the medical cost. It provides theoretical and data reference for accurately restoring the occlusal function of fixed posterior dental prosthesis.

Key words: mandibular movement analyzer, virtual articulator, occlusal function, fixed partial denture