A Case Series of Neutral Zone Recording in Prosthetic Rehabilitation of Mandibular Residual Ridge Height Defect

Neutral zone recording of mandibular ridge defect

Abstract

Background: The neutral zone recording is commonly
utilized in severely resorbed ridges that pose
challenges to prosthetic retention and stability due to
a lack of alveolar ridge height and width. Prosthetic
rehabilitation of mandibular defects that lack residual
ridge height is equally challenging and requires careful
planning and fabrication of prosthesis that will be
stable, retentive, and functional.
Objective: To utilize neutral zone recordings
impression in construction of prosthesis for the
rehabilitation cases with mandibular residual ridge
defects and evaluate outcomes
Case Series: This case series involved four female
patients aged 52, 28. 26 and 26 years respectively, who
complained of poor appearance, inability to masticate
and speak effectively, and requested prosthetic
rehabilitation following a surgical treatment for
ameloblastoma. All the cases were reconstructed after
the surgical intervention without any form of
prosthesis. Case 1 had a segmental mandibular
resection; case 2 had partial mandibulectomy; case 3
had a subtotal mandibulectomy and alveolar bone
grafting while case 4 had subtotal mandibulectomy.
Conclusion: The use of neutral zone recording
impressions in plate reconstructed mandibular
defects, improved prosthesis retention and stability
and gave a satisfactory outcome