Maxillomandibular relationship record for implant complete mouth rehabilitation with elastomeric material and facial surface index of existing denture

Abstract

Introduction:The maxillomandibular relationship (MMR) record is a critical step to establish the new occlusion in implant supported complete mouth rehabilitation. Using patients existing denture for recording the MMR requires implant definitive cast to be modified extensively to completely seat the denture (with unaltered flanges) on it. This may influence the correct seating of the denture on the implant definitive cast causing faulty recording of the MMR.Materials and Method:Elastomeric record bases, reinforced with the resin framework, are fabricated and relined with the light body elastomeric material when all the healing abutments are in place. The MMR is recorded with these elastomeric record bases using vacuum formed facial surface index of the occluded existing dentures as a guideline.Results:The elastomeric record bases with facial surface index of the existing dentures can allow clinicians to record MMR records without removing the healing abutments from the mouth with acceptable accuracy. This can save chair-side time of the procedure. The record of facial surfaces of existing complete denture in the form of vacuum formed sheet helps to set the occlusal vertical dimension.Conclusion:Use of facial surface index together with the elastomeric record bases can be the useful alternative technique to record the MMR in patients with implant supported full mouth rehabilitation. Further study is required to prove its routine clinical utility.

Transferring occlusal vertical dimension in full arch implant prosthesis: A review

“…Breaking of plastic sprues in the implant fixtures can be easily removed with a warm explorer, and is a rare problem. However, these approaches demand extra laboratory steps & is time consuming due to repeated removal and replacement of healing/prosthetic abutments, impression copings or similar components during the clinical appointments [10] . Occlusal rims with record base, once secured intraorally are then adjusted according to the vertical dimension desired and centric is recorded as done for a complete denture jaw relation.…”

“…Although, using patients existing denture for recording the jaw relation requires implant definitive cast to be modified extensively to completely seat the denture (with unaltered flanges) on it. This drawback may influence the correct seating of the denture on the implant definitive cast causing faulty recording of the vertical relation [10] .…”

“…The resin framework avoids unnecessary flexion/ distortion of the elastomeric record bases. Although this technique provides accurate records for a single case, further study is required to prove its routine clinical utility [10] .…”

Use of a healing abutment-type scan body and closed-mouth impression technique for mandibular implant-supported fixed complete denture: a pilot case report

“…Generally, impression taking with direct or indirect impression coping is performed for transferring the three-dimensional position of implant fixture and maxillomandibular relationship is recorded with record base and occlusal rim [4,5]. These procedures require numerous clinical and laboratory processes, which may cause inconvenience to the dentist, patient, and dental techni-Use of a healing abutment-type scan body and closed-mouth impression technique for mandibular implant-supported fixed complete denture: a pilot case report however, due to the lack of accuracy, this is not clinically applicable yet [10,11]. Therefore, conventional procedures with an occlusal rim is commonly used for recording the maxillomandibular relationship [4].…”