A Simple and Accurate Method for Mounting Models in Orthognathic Surgery

An Evaluation of Face-Bow Transfer for the Planning of Orthognathic Surgery

“…2,10,11 To address inaccuracies with standard face-bow devices, addi- tional instruments were introduced. 10,11 However, because inaccuracies in treatment outcome are caused by a sum of errors, no detailed conclusions about the influence of the possible error on the face-bow transfer can be drawn.…”

Anvendelse af digitale dentale og 3-D virtuelle modeller i ortodontiske, ortokirurgiske og rekonstruktive kirurgiske behandlinger

“…Det er af stor betydning, at modellerne placeres praecist i forhold til Frankfort horisontalplanet og kaebeleddene, og at relationerne mellem maxil og mandibel er korrekte. Ved montering af overkaebemodellen i artikulatoren anvendes ansigtsbueregistrering, der imidlertid er forbundet med flere fejlkilder, som påvirker praecisionen (19), specielt når der er tale om udtalte ansigtsasymmetrier. Oprindeligt blev 3-D planlaegning baseret på CT-scanninger, som er forbundet med høj strålingsdosis.…”

Unfavourable outcomes in orthognathic surgery

“…Discrepancies in the transfer of the dental models to the articulator can create a change in the three dimensional spatial relationship of the maxilla and the mandible. [21–23] This may include shift of dental midlines, creation of occlusal canting where non-existent and incorporation of rotational movements in the treatment plan. This can be minimised by proper techniques of marking orientation lines for the teeth and marking the heel of the maxilla and the mandible, which preserve the in-vivo relationship on the dental models [Figure 8].…”