| Lai WF T. |
------>authors3_c= ------>paper_class1=6 ------>Impact_Factor=None ------>paper_class3=0 ------>paper_class2=0 ------>vol= ------>confirm_bywho=yjchen ------>insert_bywho=laitw ------>Jurnal_Rank=None ------>authors4_c= ------>comm_author=1 ------>patent_EDate=2027-01-01 00:00:00 ------>authors5_c= ------>publish_day=1 ------>paper_class2Letter=0 ------>page2= ------>medlineContent= ------>unit=E1400 ------>insert_date=20090421 ------>iam=1 ------>update_date=None ------>author=??? ------>change_event=4 ------>ISSN= ------>authors_c=??? ------>score=45 ------>journal_name= ------>paper_name=Bone Implants ------>confirm_date=20091111 ------>tch_id=082002 ------>pmid=19922492 ------>page1= ------>fullAbstract=Abstract Aim: The primary objective of this study was to determine the association between the size of the void established by using two different implant configurations and the amount of buccal/palatal bone loss that occurred during 16 weeks of healing following their installation into extraction sockets. Material and methods: The clinical trial was designed as a prospective, randomized-controlled parallel-group multicenter study. Adults in need of one or more implants replacing teeth to be removed in the maxilla within the region 15-25 were recruited. Following tooth extraction, the site was randomly allocated to receive either a cylindrical (group A) or a tapered implant (group B). After implant installation, a series of measurements were made to determine the dimension of the ridge and the void between the implant and the extraction socket. These measurements were repeated at the re-entry procedure after 16 weeks. Results: The study demonstrated that the removal of single teeth and the immediate placement of an implant resulted in marked alterations of the dimension of the buccal ridge (43% and 30%) and the horizontal (80-63%) as well as the vertical (69-65%) gap between the implant and the bone walls. Although the dimensional changes were not significantly different between the two-implant configurations, both the horizontal and the vertical gap changes were greater in group A than in group B. Conclusions: Implant placement into extraction sockets will result in significant bone reduction of the alveolar ridge. To cite this article: Sanz M, Cecchinato D, Ferrus J, Pjetursson EB, Lang NP, Jan L. A prospective, randomized-controlled clinical trial to evaluate bone preservation using implants with different geometry placed into extraction sockets in the maxilla. Clin. Oral Impl. Res. xx, 2009; 000-000. ------>tmu_sno=None ------>sno=21802 ------>authors2= ------>authors3= ------>authors4= ------>authors5= ------>authors6= ------>authors6_c= ------>authors=Lai WF T. ------>delete_flag=0 ------>SCI_JNo=None ------>authors2_c= ------>publish_area=0 ------>updateTitle=A prospective, randomized-controlled clinical trial to evaluate bone preservation using implants with different geometry placed into extraction sockets in the maxilla. ------>language=2 ------>check_flag=None ------>submit_date=None ------>country=?? ------>no= ------>patent_SDate=2007-01-01 00:00:00 ------>update_bywho=None ------>publish_year=2007 ------>submit_flag=None ------>publish_month=1 |