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ePaper created 2016-09-20, 16:58:27 | version 1.38.0
Journal of Oral Science & Rehabilitation 50 Volume 2 | Issue 3/2016 I m m e d i a t e l o a d i n g u s i n g g u i d e d s u r g e r y Immediate loading of variable-thread expanding tapered-body implants placed into maxillary post-extraction or healed sites using a guided surgery approach: An up-to-five-year retrospective analysis Abstract O b j e c t i v e Transitioningfromfailingdentitiontocomplete-archimplantrehabilitation mayinvolvetemporarilyrenderingthepatientedentulous.Inordertoavoid the use of a removable prosthesis, immediate implant placement and im- mediate loading with a fixed provisional prosthesis have been proposed. The aim of this study was to retrospectively assess the clinical and radio- graphic performance ofvariable-thread expandingtapered-bodyimplants placed into maxillary post-extraction or healed sites using computer- assistedtemplate-guidedsurgerywithaspeciallydesignedradiographicstent. M a t e r i a l s a n d m e t h o d s Datafrom160implantsplacedin27consecutivepatientswereevaluated up to five years (mean of 29 months). Outcomes were implant and pros- theticsurvivalandsuccessrates,biologicalandmechanicalcomplications, marginal bone remodeling, sulcus bleeding index, plaque score and gin- gival index. R e s u l t s Atthelastfollow-up,oneimplanthadfailed,resultinginanoverallimplant cumulative survival rate of 99.4%, and all of the prostheses were in situ. Marginal bone remodeling was statistically significantly higher in the healed sites (-0.67 ± 0.97 mm; n = 105) than in the post-extraction sites (0.42 ± 0.99 mm; n = 55; p = 0.026). Two implants showed excessive marginal bone remodeling (> 3 mm) at the last follow-up (1.25%). Good soft-tissue parameters were found around all of the other implants. C o n c l u s i o n The expanding tapered-body implants placed into healed and post- extraction maxillary sites using computer-assisted template-guided sur- gery and immediately loaded showed a good survival rate and good peri- odontal parameters. K e y w o r d s Immediate loading, tapered-body implant, guided surgery. Giovanni Polizzi,a Tommaso Cantoni,a Emanuele Pasinia & Marco Tallaricob a Private Clinic BSC, Verona, Italy b Dentistry Unit, University Hospital of Sassari, Sassari, Italy C o r r e s p o n d i n g a u t h o r : Dr. Giovanni Polizzi Private Clinic BSC Via Gobetti 9 37138 Verona Italy giovanni.polizzi@bscvr.com This paper was presented at the European Association for Osseointegration annual meeting in Rome, Italy, on Sept. 25th , 2014. H o w t o c i t e t h i s a r t i c l e : Polizzi G, Cantoni T, Pasini E, Tallarico M. Immediate loading of variable-thread expanding tapered-body implants placed into maxillary post-extraction or healed sites using a guided surgery approach: an up-to-5-year retrospective analysis. J Oral Science Rehabilitation. 2016 Sep;2(3):50–60.