Journal of AdvancedMedical and Dental Sciences Research

Purpose: This study was designed to investigate the adaptation of maxillary denture bases to stone casts with varying palatal vault processed by the conventional, and two anchoring methods. Material and methodology: Fifteen maxillary casts made of shallow palatal form and another fifteen made of deep palatal form were selected for the study. Fifteen of each group were further divided into 3 subgroups consisting of five casts in each sub group.(1 conventional group,2 anchorage groups).The anchoring methods used holes drilled on the cast and a special flange extended onto the posterior aspect of the maxillary cast. Twenty-four hours after polymerization, the bases on the casts were sectioned at the posterior border at pre-determined points and evaluated for the degree of adaptation, by using a stereomicroscope. The resultant data were analyzed using two-way analysis of variance followed by post hoc multiple comparison test.
Results: The maximum gap was noted in the mid-palatine region in the conventional method. Though the anchored pegs showed better adaptation of denture bases, statistically there was no significant difference between two anchoring methods irrespective of palatal configuration. Conclusion: Within the limitations of the study it is concluded that, anchor hole method and strap method equally effective and these methods significantly improves the palatal adaptation of denture bases compared with conventional method.
Key words: Posterior palatal seal, palatal vault, denture base, polymerization shrinkage, anchoring holes.

Corresponding Author: Dr. Anulekha C.K, Associate Professor, Department of Prosthodontics, Kamineni Institute of Dental Sciences, Narketpally, Hyderabad, Telangana, India

This article may be cited as: C.K Anulekha, G Parameshwari, .M Taruna, Tella S, Reddy R,  Jagani AS. A Comparative Evaluation of the Denture Base Accuracy along the Posterior Palatal Seal using Different Anchorage Systems in Complete Dentures. J Adv Med Dent Scie Res 2016;4(2):165-169.