Comparing Conventional Dental Implants and Trabecular Metal™ Dental Implants After Sinus Floor Elevation

Exclusion Criteria

• •Subjects who have smoked cigarettes or chewed tobacco within the past year
• •History of alcoholism or drug abuse within the past 5 years
• •Subjects with Severe bruxing or clenching habits
• •Untreated periodontitis
• •Subjects at undue risk for an outpatient surgical procedure
• •Subjects with the presence of residual roots at the implant site
• •Subjects with history of site development (extensive bone augmentation) at the implant site in the past 4 months
• •Placement of implant in an extraction site that had been healing for less than 2 month
• •Presence of local inflammation or mucosal diseases such as lichen planus
• •Subjects with uncontrolled diabetes (defined as HA1c \> 7.0 percent)
• •Subjects with current hematologic disorder or chronic use of Coumadin (or similar) anti-coagulant therapies
• •Subjects with history of leukocyte dysfunction and deficiencies
• •Subjects with Metabolic bone disorders
• •Subjects with history of renal failure
• •Subjects with history of liver disease
• •Immunocompromised Subjects having HIV, RA, SLE or other collagen vascular disorders
• •Subjects with chronic corticosteroid use
• •Subjects undergoing chemotherapy
• •Subjects with a history of use of IV-based bisphosphonates
• •Subjects with history of radiation treatment to the head or neck
• •Subjects requiring grafting of bone or mucosal tissue at the time of implant placement, which would require submersion of the implant during the healing period
• •Subjects using of any investigational drug or device within the 30 day period immediately prior to implant surgery
• •Pregnant women or women intending to become pregnant during this study period.
• •Subjects requiring submersion of implants for esthetic reasons