Abstract:
Objective: to assess cone-beam computerized tomography (CBCT) accuracy in measuring the facial soft tissue thickness around immediate implants before and after connective tissue grafting.
Methods: 20 patients received immediate implants and connective tissue grafts in the esthetic zone. Facial soft tissue thickness was evaluated at 2mm, 4mm and 6mm from free gingival margin by bone sounding using endodontic file with silicone stopper and digital caliper and by CBCT after putting lip retractor.
Results: Paired t test showed a significant difference between base line and 6 months follow up readings in both methods. No significant difference was reported between both methods. On the other hand, Pearson correlation coefficient showed an inverse correlation between both methods.
Conclusion: CBCT provided a noninvasive, accurate and reliable data for measuring the facial soft tissue thickness and can be used for the analysis and planning of immediate implants placement in the esthetic zone.
Clinical significance: Using CBCT in soft tissue assessment at the time of implant/bone evaluation can aid in saving the clinician and patient time and prevents the painful invasive bone sounding process.