Outcomes of Different Bone Graft Combinations for Maxillary Sinus Augmentation Procedure

Inclusion criteria

• Indication of bilateral sinus augmentation through lateral window technique to prepare maxillary right and left posterior edentulous sites for a single or multiple unit implant supported restorations.
• Systemically healthy with controlled conditions
• Periodontally healthy/controlled dentition
• No known chronic and/or seasonal sinusitis
• No previous ear, nose, throat, and sinus surgeries
• Non-smokers
• Willing to be treated with allograft, xenograft and/or synthetic bone graft materials

Exclusion criteria

• 1. Indication of sinus augmentation through indirect techniques (≥5 mm initial alveolar ridge height from crest to maxillary sinus floor)
• Implant placement surgery planned somewhere else
• Implant placement planned at the time of sinus augmentation
• Cases requiring major alveolar ridge augmentation concurrent with sinus augmentation
• Cases requiring the use of a partial denture with buccal flange extension during the post-operative period
• History of previously failed implant and/sinus augmentation procedures
• History of tumors and/or radiation and/or chemotherapy
• Uncontrolled systemic health problems and ENT/sinus concerns
• Uncontrolled periodontal/dental problems
• Intake of medications affecting wound or bone healing (e.g., corticosteroids, immunosuppressants, etc.)
• Alcohol or drug abuse
• Active smokers (patient should be a non-smoker for at least 1 year prior to sinus augmentation procedure)
• Unable/unwilling to follow post-operative instructions, rejecting to be treated with allograft, xenograft and/or synthetic bone graft materials
• Unable/unwilling to attend scheduled study visits
• Participation in another clinical trial within 3 months prior to planned study entry