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Our upper teeth especially the back ones often have their roots dipping into or in close proximity to the maxillary sinus. The natural response to tooth loss is a shrinkage in the amount of bone existing around the tooth that was, this means that if an upper tooth is lost there is a decrease in the height of bone beneath the sinus. In such a situation if the patient wants Implants it becomes impossible to insert the implant in such a diminished height of bone, thereby necessitating such a procedure that would restore the bone height. |