Abstract

Alveolar ridge atrophy poses a clinical challenge towards the fabrication of a successful prosthesis. Resorption of denture bearing areas results in an unstable non-retentive dentures associated with pain and discomfort. Prosthetic Rehabilitation of a patient with severely resorbed ridge is the most challenging therapy a prosthodontist can undertake. For a favourable prognosis of the denture therapy, impression technique selected should be based on the present state of the basal tissue support. This article presents rehabilitation of a patient with severely resorbed mandibular ridge with the application of neutral zone concept being incorporated into impression making in an effort to achieve successful complete denture therapy. Finally, patient had more stable, retentive and functionally efficient complete denture. In conclusion, neutral zone impression technique proved to be a quite effective method for prosthetic rehabilitation of patient with severe mandibular ridge resorption. DOI: http://dx.doi.org/10.3329/bjms.v13i4.15605 Bangladesh Journal of Medical Science Vol.13(4) 2014 p.477-480

Highlights

  • The potential space situated between lips and cheeks on one side and tongue on other sides is known as neutral zone[1], where the forces between the tongue and cheeks or lips are equal[2], which determines the retention and stability of any prosthesis placed in the oral cavity to replace the missing teeth

  • Neutral zone impression technique is a treatment of choice in patients with atrophic mandible, partial glossectomy, mandibular resections which have led to an unfavourable denture bearing area[1]

  • Clinicians must identify and record the neuromuscular dynamics of the oral tissues and this should be applied in the construction of the definitive prosthesis that will exist within the stabilizing boundary conditions of the neutral zone area[1]

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Summary

Introduction

The potential space situated between lips and cheeks on one side and tongue on other sides is known as neutral zone[1], where the forces between the tongue and cheeks or lips are equal[2], which determines the retention and stability of any prosthesis placed in the oral cavity to replace the missing teeth. Neutral zone impression technique is a treatment of choice in patients with atrophic mandible, partial glossectomy, mandibular resections which have led to an unfavourable denture bearing area[1]. This article describes rehabilitation of an edentulous mouth with severely resorbed mandibular ridge using neutral zone impression technique. 2. Bhandari A, Junior Resident, Department of Prosthodontics, CODS, BPKIHS, Dharan, Nepal. 3. Prajuli PK, Assistant Professor, Department of Prosthodontics, CODS, BPKIHS, Dharan, Nepal. 4. Singh RK, Professor, Department of Prosthodontics, CODS, BPKIHS, Dharan, Nepal. C. Conventional maxillary denture and mandibular complete denture with neutral zone technique. Pros and cons of all options were explained to the patient He decided in the favour of conventional maxillary complete denture and mandibular complete denture with neutral zone technique as it was inexpensive and non-surgical procedure

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