Implant Dentistry - June 2014 - Volume 23 - Issue 3
Clinical Performance of a Highly Porous Beta-TCP as the Grafting Material for Maxillary Sinus Augmentation
Background: Beta-tricalcium phosphate (beta-TCP) is a synthetic bone substitute having high porosity and fast resorption. This retrospective study aimed at evaluating the effectiveness of an highly macroporous beta-TCP for maxillary sinus floor augmentation.
Methods: Twenty-seven consecutive patients (17 woman/10 men, mean age: 59.7 years) in 2 clinics underwent maxillary sinus augmentation by lateral approach using beta-TCP as grafting material. Implant survival, prosthesis success, periimplant bone loss, oral hygiene level, soft tissue condition, complication occurrence, and patient satisfaction were assessed.
Results: Thirty-one sinuses were successfully augmented. Sixty implants were placed. No sinus membrane perforations occurred. The mean follow-up after grafting was 39.3 +/- 8.7 months (range, 22–52 months), and it was 30.5 +/- 8.1 months (range, 15–43 months) after implant loading. No implants were lost. After 1 year of loading, marginal bone loss averaged −0.88 +/- 0.46 mm (n = 54 implants). Mean full-mouth plaque and bleeding scores were 11.5% +/- 4.8% and 3.5% +/- 2.8%, respectively. No biological or mechanical complications were recorded. Patient satisfaction was very high.
Conclusion: Despite limited sample size and follow-up duration, highly macroporous beta-TCP proved a valuable bone substitute for sinus augmentation, even when used alone. (Implant Dent 2014;23:357–364)
Key Words: bone substitute, dental implants, maxillary sinus augmentation, tricalcium phosphate
Authors : Raphael Bettach, DDS,* Bernard Guillaume, MD,† Silvio Taschieri, MD, DDS,‡ and Massimo Del Fabbro, BSc, PhD