Graft contact area to volume ratio – a critical factor in new bone formation after maxillary sinus augmentation in adults?

niversity of Queensland0 个研究点目标入组 50 人开始时间: 2022年1月18日最近更新: 2024年2月27日

适应症

试验速览

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•Individuals are at least 18 years of age, medically healthy or with mild controlled systemic disease, able to undergo oral surgical procedures under local or general anaesthesia (ASA I and II; American Society of Anesthesiologists, Schaumburg, Illinois, USA).
•Adequate plaque control (FM plaque and BOP scores equal to or greater than 25%) at study baseline
•Residual alveolar bone height of the edentulous maxilla below the floor of the maxillary sinus less than or equal to 4.9 mm and equal to or greater than 3.0 mm (measured at the mid-point of the edentulous space where both the coronal and sagittal planes intersect) and residual alveolar bone width of greater than or equal to 6mm.
•If bilateral sinus augmentation was required, only one sinus was randomly selected and used for the purposes of this study.
•Teeth at the surgical site which require removal are extracted a minimum of 12 weeks prior to sinus floor elevation
•Treated and stable periodontal disease as assessed by specialist Periodontists (JA & SI) with stability defined as having a full mouth bleeding score great than 20% and no sites of residual periodontal probing depth greater than 5mm (Lang & Tonetti 2003).

•Pregnancy at the time of recruitment
•Alcoholism or chronic drug abuse
•Patients who smoke more than 10 cigarettes per day
•Medications which interferes with bone formation
•History of local radiation therapy
•Severe parafunction
•Signs and symptoms consistent with acute maxillary sinusitis
•Significant soft tissue thickening (=2mm thickening) or sinus opacification in the sinus of interest.
•Previous maxillary sinus augmentation.

发起方

niversity of Queensland