Dental Technique| Volume 129, ISSUE 2, P257-261, February 2023

Download started.


Automated vector analysis to design implant-supported prostheses: A dental technique


      The prosthesis loading force is an important factor for dental implant survival. Even if adequate osseointegration of the dental implant has been achieved, if the occlusal forces are not correctly distributed, lateral torque can be generated causing high stress on surrounding tissues. The stress value of implant prostheses could be different whether the direction of load is vertical or oblique, affected by the shape of the occlusal surface. When an implant-supported prosthesis is designed with a dental computer-aided design software program, the average vectors from each occlusal contact point can be visualized. If the visualized vector generates lateral torque, the occlusal surface design can be modified before finalizing the design. The described technique uses automated vector analysis to enable visualization of the occlusal vector to improve prosthesis design, optimizing occlusal forces.
      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'


      Subscribe to Journal of Prosthetic Dentistry
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect


        • Chrcanovic B.R.
        • Kisch J.
        • Albrektsson T.
        • Wennerberg A.
        Factors Influencing Early Dental Implant Failures.
        J Dent Res. 2016; 95: 995-1002
        • Oh S.L.
        • Shiau H.J.
        • Reynolds M.A.
        Survival of dental implants at sites after implant failure: A systematic review.
        J Prosthet Dent. 2020; 123: 54-60
        • Carlsson G.E.
        Dental occlusion: modern concepts and their application in implant prosthodontics.
        Odontology. 2009; 97: 8-17
        • Brune A.
        • Stiesch M.
        • Eisenburger M.
        • Greuling A.
        The effect of different occlusal contact situations on peri-implant bone stress - A contact finite element analysis of indirect axial loading.
        Mater Sci Eng C Mater Biol Appl. 2019; 99: 367-373
        • Lee H.
        • Jo M.
        • Sailer I.
        • Noh G.
        Effects of implant diameter, implant-abutment connection type, and bone density on the biomechanical stability of implant components and bone: A finite element analysis study.
        J Prosthet Dent. 2021; (S0022-3913(20)30655-7)
        • Lee H.
        • Jo M.
        • Noh G.
        Biomechanical effects of dental implant diameter, connection type, and bone density on microgap formation and fatigue failure: A finite element analysis.
        Comput Methods Programs Biomed. 2021; 200: 105863
        • Kim J.H.
        • Noh G.
        • Hong S.J.
        • Lee H.
        Biomechanical stress and microgap analysis of bone-level and tissue-level implant abutment structure according to the five different directions of occlusal loads.
        J Adv Prosthodont. 2020; 12: 316-321
        • Lee H.
        • Park S.
        • Noh G.
        Biomechanical analysis of 4 types of short dental implants in a resorbed mandible.
        J Prosthet Dent. 2019; 121: 659-670
        • Eskitascioglu G.
        • Usumez A.
        • Sevimay M.
        • Soykan E.
        • Unsal E.
        The influence of occlusal loading location on stresses transferred to implant-supported prostheses and supporting bone: A three-dimensional finite element study.
        J Prosthet Dent. 2004; 91: 144-150
        • Suzuki A.
        • Hoshiai T.
        • Nakata H.
        • Otomaru T.
        • Oki M.
        • Taniguchi H.
        • et al.
        Modal analysis of two different types of fixed implant-supported prostheses embedded in edentulous maxillae.
        J Prosthodont Res. 2019; 63: 327-333
        • Taylor T.D.
        • Wiens J.
        • Carr A.
        Evidence-based considerations for removable prosthodontic and dental implant occlusion: a literature review.
        J Prosthet Dent. 2005; 94: 555-560
        • Fabbri G.
        • Sorrentino R.
        • Cannistraro G.
        • Mintrone F.
        • Bacherini L.
        • Turrini R.
        • et al.
        Increasing the vertical dimension of occlusion: a multicenter retrospective clinical comparative study on 100 patients with fixed tooth-supported, mixed, and implant-supported full-arch rehabilitations.
        Int J Periodontics Restorative Dent. 2018; 38: 323-335
        • Luo Q.
        • Ding Q.
        • Zhang L.
        • Xie Q.
        Analyzing the occlusion variation of single posterior implant-supported fixed prostheses by using the T-scan system: A prospective 3-year follow-up study.
        J Prosthet Dent. 2020; 123: 79-84
        • Weinberg L.A.
        Therapeutic biomechanics concepts and clinical procedures to reduce implant loading. Part I.
        J Oral Implantol. 2001; 27: 293-301
        • Weinberg L.A.
        The biomechanics of force distribution in implant-supported prostheses.
        Int J Oral Maxillofac Implants. 1993; 8: 19-31
        • Weinberg L.A.
        • Kruger B.
        Biomechanical considerations when combining tooth-supported and implant-supported prostheses.
        Oral Surg Oral Med Oral Pathol. 1994; 78: 22-27
        • Weinberg L.A.
        Reduction of implant loading using a modified centric occlusal anatomy.
        Int J Prosthodont. 1998; 11: 55-69
        • Sahin S.
        • Cehreli M.C.
        • Yalçin E.
        The influence of functional forces on the biomechanics of implant-supported prostheses--a review.
        J Dent. 2002; 30: 271-282