Immediate Occlusal Loading of Immediately Placed Implants Supporting Fixed Restorations in Completely Edentulous Arches : A 1-Year Prospective Pilot Study
Identifieur interne : 000265 ( PascalFrancis/Checkpoint ); précédent : 000264; suivant : 000266Immediate Occlusal Loading of Immediately Placed Implants Supporting Fixed Restorations in Completely Edentulous Arches : A 1-Year Prospective Pilot Study
Auteurs : Francesco Pieri [Italie] ; Nicolo Nicoli Aldini [Italie] ; Milena Fini [Italie] ; Giuseppe Corinaldesi [Italie]Source :
- Journal of periodontology [ 0022-3492 ] ; 2009.
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- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Background: The aims of this pilot study were to evaluate the efficacy of treatment consisting of the immediate loading of implants placed immediately after tooth extraction in full-arch restorations and to compare the clinical and radiographic outcomes of implants placed in healed versus postextraction sites in the same group of patients. Methods: Twenty-three patients who needed full-arch restorations were treated. One hundred forty-four implants were placed: 59 after tooth extraction (test group) and 85 in healed sites (control group). Within 48 to 72 hours of implant placement, nine maxillary and 15 mandibular arches received screw-retained fixed prostheses, consisting of a titanium framework fabricated with a computer-aided design and manufacturing techniques and composite resin teeth. The insertion torque for implants was ≥30 Ncm. Implant stability measurements (ISQ) and radiographs of the marginal bone level (MBL) change were performed at prosthesis delivery and after 1 year. Results: One implant in the test group and one implant in the control group failed, giving a cumulative success rate of 98.6%; the prosthesis survival rate was 100%. At the 1-year follow-up, no statistically significant difference was found between the control and test sites with respect to MBL change (0.47 ± 0.18 mm versus 0.57 ± 0.27 mm) or mean ISQ values (62.24 ± 1.92 versus 61.34 ± 2.15). Conclusion: These preliminary data suggest that immediate loading of implants placed immediately after extraction may be a viable treatment option for edentulous arches when implants are stable at insertion and are rigidly splinted with screw-retained titanium-resin prostheses.
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<front><div type="abstract" xml:lang="en">Background: The aims of this pilot study were to evaluate the efficacy of treatment consisting of the immediate loading of implants placed immediately after tooth extraction in full-arch restorations and to compare the clinical and radiographic outcomes of implants placed in healed versus postextraction sites in the same group of patients. Methods: Twenty-three patients who needed full-arch restorations were treated. One hundred forty-four implants were placed: 59 after tooth extraction (test group) and 85 in healed sites (control group). Within 48 to 72 hours of implant placement, nine maxillary and 15 mandibular arches received screw-retained fixed prostheses, consisting of a titanium framework fabricated with a computer-aided design and manufacturing techniques and composite resin teeth. The insertion torque for implants was ≥30 Ncm. Implant stability measurements (ISQ) and radiographs of the marginal bone level (MBL) change were performed at prosthesis delivery and after 1 year. Results: One implant in the test group and one implant in the control group failed, giving a cumulative success rate of 98.6%; the prosthesis survival rate was 100%. At the 1-year follow-up, no statistically significant difference was found between the control and test sites with respect to MBL change (0.47 ± 0.18 mm versus 0.57 ± 0.27 mm) or mean ISQ values (62.24 ± 1.92 versus 61.34 ± 2.15). Conclusion: These preliminary data suggest that immediate loading of implants placed immediately after extraction may be a viable treatment option for edentulous arches when implants are stable at insertion and are rigidly splinted with screw-retained titanium-resin prostheses.</div>
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