Abstract
Introduction: The purpose of this study was to evaluate and compare different impression techniques in relation to accuracy of the occlusal plane. Materials and Methods: Twenty impressions were made with different techniques and casts were fabricated and discrepancy in the occlusal plane was measured using microcator. Five impressions for each of the technique were made using polyvinyl silicone and impression poured with type IV die stone. The discrepancies in the occlusal plane were measured and compared. Results: Casts poured with custom tray yielded the most accurate models from the impression and the values were statistically significant. Conclusion: Impression technique using custom tray yielded most accurate model from the impressions. Among relining putty with spacer on the prepared area produced more variation in occlusal plane.
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