Dental Implantation, Endosseous 2 Humans 2 alveolar ridge preservation 2 bone regeneration 2 human 2 implant therapy 2 physiology 2 procedures 2 sinus floor elevation 2 tooth implantation 2 Alveolar Process 1 Alveolar Ridge Augmentation 1 Bone Regeneration 1 Platelet-Rich Fibrin 1 Platelet-Rich Plasma 1 Sinus Floor Augmentation 1 Treatment Outcome 1 alveolar bone 1 alveolar ridge augmentation 1 guided bone regeneration 1 platelet-rich fibrin 1 platelet-rich plasma 1 sinus floor augmentation 1 thrombocyte rich plasma 1 treatment outcome 1