Influence of tooth removal on mandibular bone response to mastication

Prediction of mandibular bone remodelling induced by fixed partial dentures

“…Thus, from a biomechanical perspective, the bone resorption may not be preventable as the original mechanical environment has been considerably compromised and might never be fully replaced. On the other hand, the installation of the FPD can reduce BMD loss when compared with a tooth extraction scenario without FPD treatment (Field et al, 2008(Field et al, , 2010 (Fig. 8c).…”

“…PDL is generally known to respond mechanical loading in a non-linear manner (Toms et al, 2002), but such a response was not employed in this remodelling analysis paper as the mastication loading-induced strains fall in the linear elastic region of the constitutive model (Field et al 2008).…”

“…Linear elastic, homogeneous, isotropic properties of abutment teeth and FPD were assumed in the remodelling analysis (Table 1) (Field et al 2008). The cortical and cancellous bones were characterised with heterogeneous materials as per the HU values available from the literature in the levels of 1700 and 350, respectively (Hellmich et al, 2008;Park et al, 2008).…”

A comparative mechanical and bone remodelling study of all-ceramic posterior inlay and onlay fixed partial dentures

“…The second premolar, first molar and second molar were occlusally loaded with the forces of 40 N, 80 N and 100 N, respectively, through a surface-tosurface frictional contact with solid food (frictional coefficient f = 0.2). 10,11 Fully bonded interfaces were assumed between the FPD and abutments simulating fixed prosthodontics.…”

“…9 Clinically, bone resorption is often an inevitable consequence following tooth extraction due to local bone disuse and loss of supporting functions. 10,11 Although the resorption may not be eliminated completely, its severity can be reduced by ensuring the prosthesis to transmit sufficient mechanical loadings to the underlying bone in a proper way. 12,13 However, it is unclear what the in vivo biomechanical responses are for either an inlay or onlay bridge treatment.…”