25.Comparison between the Neutral Zone and Admixed Impression Techniques in the Management of Atrophic Mandibular Ridges
Irum Munir Raja1, Mervyn Hosein3 and Muhammad Athar Khan2
Objective: To compare the stability and comfort level of dentures fabricated either by the Neutral Zone or by Admixed impression techniques in severely atrophic mandibles.
Study Design: Randomized Clinical Trial, Uni center, Single blinded, Two arm study
Place and Duration of Study: This study was conducted at the Prosthodontics department, Liaquat College of Medicine and Dentistry, Karachi from January 2021 to October 2021 for a period of 09 months.
Materials and Methods: A total of 84 edentulous patients with atrophic mandibular ridges were selected using non-probability consecutive sampling technique. Subjects were randomly assigned to one of two groups (Neutral Zone technique/Admixed) and observed at one month, three months and six months.
Results: Total mean score of level of comfort during impression was statistically significant for both the techniques (p<0.001). Regarding comparison of mean stability score after six months, mean of denture fit was observed with statistically significant difference for both the techniques (p=0.041).
Conclusion: : Dentures made by Neutral Zone technique showed slight superior levels of patient satisfaction and stability than dentures prepared by Admixed technique in all functional features (immovability, masticatory capability, retention, swallowing and speech) in addition to comfort and aesthetics.
Key Words: Atrophic mandibular ridge, Neutral zone technique, stability, Admixed impression technique
Citation of article: Raja IM, Hosein M, Khan MA. Comparison between the Neutral Zone and Admixed Impression Techniques in the Management of Atrophic Mandibular Ridges. Med Forum 2022;33(2):109-113.