Efficacité des techniques de décortication alvéolaire sélective dans l’accélération du traitement orthodontique : une revue systématique de la littérature

Introduction : Les publications scientifiques concernant l’accélération du traitement orthodontique, et plus particulièrement les techniques chirurgicales de corticotomies alvéolaires ont vu leur nombre croître exponentiellement au cours de ces dernières années. L’objectif de cette revue systématique de la littérature était d’évaluer l’efficacité de ces corticotomies en se basant sur des études réalisées chez l’Homme. Matériel et méthode : La revue fut entreprise à partir des bases de données Medline et Web of Science Core Collection afin d’identifier les essais cliniques prospectifs contrôlés ayant pour critère de jugement principal la durée du traitement orthodontique ou la vitesse du déplacement dentaire. Résultats : Onze études répondaient à l’ensemble des critères d’inclusion. Six analysaient la durée du traitement et trouvaient des valeurs plus courtes dans le groupe expérimental que dans le groupe contrôle, avec un gain variant de 8 à 34 semaines. Cinq analysaient la vitesse du déplacement dentaire et trouvaient des valeurs 2,3 fois supérieures en moyenne au cours du premier mois dans les groupes expérimentaux et 1,9 fois au cours du deuxième et du troisième mois, enfin 1,3 fois au cours du quatrième mois. La technique semblait par ailleurs diminuer le risque de résorption radiculaire et améliorer l’ancrage molaire. De plus, elle présentait une bonne tolérance parodontale. Conclusion : La littérature actuelle met en exergue l’efficacité des décortications chirurgicales pendant les trois à quatre premiers mois post-opératoires. Des études prospectives plus longues devront être menées afin d’évaluer leurs effets sur le long terme

Maxillary restoration with complete maxillary prosthesis supported by implants with immediate loading: clinical retrospective study of 48 cases

Introduction: In recent years, the immediate loading procedure for the rehabilitation of edentulous jaws has gained popularity among patients and practitioners. The purpose of this study was to evaluate implant and prosthetic success rates for the rehabilitation of edentulous maxillae using tilted distal implants and immediate loading of prostheses, after 2 years. Material and method: Patients included in the study received a complete prosthesis of the upper arch, attached to 4, 5 or 6 implants. The provisional prosthesis was fixed the same day the implants were placed. After a period of osseointegration, the provisional prosthesis was replaced by a definitive prosthesis with a titanium framework made using computer-aided design/computer-assisted manufacturing (CAD/CAM) technology. Judgment criteria were the implant success rate, the provisional prosthesis success rate, and the definitive prosthetic success rate. Results: Two hundred and forty-two implants were placed in 48 patients. Five implants were lost, resulting in an implant survival at 2 years of 97.9%. Two provisional fixed prosthesis had to be temporarily replaced by a removable solution, resulting in a provisional prosthesis success rate of 95.8%. The definitive prosthesis success rate was 100%. Discussion: Use of a provisional prosthesis during the osseointegration period is essential, both for the preparation of the final prosthesis as well as for proper management of potential implant failures. Implant failures are more easily managed if at least five implants were originally placed

Maxillary restoration with complete maxillary prosthesis supported by implants with immediate loading: clinical retrospective study of 48 cases

Introduction: In recent years, the immediate loading procedure for the rehabilitation of edentulous jaws has gained popularity among patients and practitioners. The purpose of this study was to evaluate implant and prosthetic success rates for the rehabilitation of edentulous maxillae using tilted distal implants and immediate loading of prostheses, after 2 years. Material and method: Patients included in the study received a complete prosthesis of the upper arch, attached to 4, 5 or 6 implants. The provisional prosthesis was fixed the same day the implants were placed. After a period of osseointegration, the provisional prosthesis was replaced by a definitive prosthesis with a titanium framework made using computer-aided design/computer-assisted manufacturing (CAD/CAM) technology. Judgment criteria were the implant success rate, the provisional prosthesis success rate, and the definitive prosthetic success rate. Results: Two hundred and forty-two implants were placed in 48 patients. Five implants were lost, resulting in an implant survival at 2 years of 97.9%. Two provisional fixed prosthesis had to be temporarily replaced by a removable solution, resulting in a provisional prosthesis success rate of 95.8%. The definitive prosthesis success rate was 100%. Discussion: Use of a provisional prosthesis during the osseointegration period is essential, both for the preparation of the final prosthesis as well as for proper management of potential implant failures. Implant failures are more easily managed if at least five implants were originally placed