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Göteborgs universitets publikationer

Immediate loading of two flapless placed mandibular implants supporting cross-arch fixed prostheses: A 5-year follow-up prospective single cohort study

Författare och institution:
G. Cannizzaro (-); P. Felice (-); M. Lazzarini (-); V. Ferri (-); M. Leone (-); A. Trullenque-Eriksson (-); Marco Esposito (Institutionen för kliniska vetenskaper, sektionen för anestesi, biomaterial och ortopedi, Avdelningen för biomaterialvetenskap)
Publicerad i:
European Journal of Oral Implantology, 9 ( 2 ) s. 165-177
Artikel, refereegranskad vetenskaplig
Sammanfattning (abstract):
Purpose: To evaluate the clinical outcome of two implants placed flapless in fully edentulous mandibles and immediately restored with metal-resin screw-retained cross-arch prostheses 5 years after loading. Materials and methods: Eighty consecutive patients were recruited. To be immediately loaded, implants had to be inserted with a minimum torque of 80 Ncm. Forty-six laser-welded titanium and 34 cast silver-palladium frameworks with resin teeth were initially delivered within 8 and 48 h, respectively. Outcome measures, evaluated by two independent assessors included prosthesis and implant failures, complications, marginal bone level changes, implant stability quotient (ISQ) values and patient satisfaction. Results: Five years after loading one patient did not return to the control and 10 prostheses were remade. Two implants failed early in two patients, but they were successfully replaced. Thirty-six complications occurred in 28 patients but were all successfully treated. After 5 years, mean marginal bone loss was 0.69 mm, mean ISQ values decreased from 75.4 to 73.8, and all patients were fully satisfied with the therapy. A post-hoc comparison between the outcome of laser-welded and cast frameworks showed that laser-welded frameworks were affected by significantly more complications (19 patients out of 46 and 6 patients out of 34, respectively; difference in proportion = 0.23, 95% CI: 0.03 to 0.43; Pearson's chi-square test, P = 0.032), therefore such a framework construction should be considered as a long-term temporary prosthesis and not a definitive prosthesis. Conclusions: Immediately loaded mandibular cross-arch prostheses can be supported by only two implants up to 5 years, if made with a robust cast framework. Longer follow-ups (around 10 years) are still needed to know the prognosis of this treatment modality.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
Klinisk medicin ->
cohort study, dental implants, flapless, immediate loading, randomized controlled-trial, partially edentulous patients, controlled, clinical-trial, 4 endosseous implants, dental implants, patient, satisfaction, overdentures, multicenter, all-on-2, surgery, Dentistry, Oral Surgery & Medicine
Postens nummer:
Posten skapad:
2016-07-28 10:44

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