The Efficacy of Different Gingival Displacement Methods Before Definitive Digital Impression

The Efficacy of Different Gingival Displacement Methods Before Definitive Digital Impression: A Randomized Controlled Clinical Trial

This study aims to evaluate and compare the efficacy of four methods in achieving vertical and horizontal gingival tissue displacement to be captured by optical digital impression. Moreover, the effect of the gingival displacement methods on the periodontal tissues around the final restoration will be assessed.

Inclusion Criteria:

• Patients having normal occlusion.
• Good oral hygiene with no signs of periapical pathology or periodontal disease (plaque index score ≤10).
• Clinically and radiographically healthy gingiva and periodontium around the abutments with no evidence of attachment loss.
• Thick gingival biotype (determination using color coded probe).
• Patient having natural teeth as opposing dentition.
• Gingival sulcus of the abutment teeth (≤ 3mm).
• Adequate abutment tooth length for retention without deep subgingival extension (not more than 0.5mm)

Exclusion Criteria:

• Pregnancy, which prevents the use of diagnostic x-rays.
• Parafunctional habits.
• Mobility of abutment teeth.
• Gingival Recession
• Patient presenting allergy to materials being used.
• Smoking.
• Medical history that could affect their periodontal condition.