Domenico Dalessandri1, Stefano Salgarello2, Michela Dalessandri3, Elena Lazzaroni4, Mariagrazia Piancino5, Corrado Paganelli4, Carlo Maiorana3, Franco Santoro3. 1. *Department of Orthodontics, School of Dentistry, University of Brescia,**Department of Medical, Surgical and Health Sciences, University of Trieste, dalessandridomenico@libero.it. 2. ***Department of Oral Surgery, School of Dentistry, University of Brescia. 3. ****Department of Oral Surgery, Fondazione IRCCS Policlinico Cà Granda, University of Milan, and. 4. *Department of Orthodontics, School of Dentistry, University of Brescia. 5. *****Department of Orthodontic and Gnathology (Masticatory Function), Dental School, University of Turin, Italy.
Abstract
INTRODUCTION: The aim of this study was to review the literature and evaluate the failure rates and factors that affect the stability and success of temporary anchorage devices (TADs) used as orthodontic anchorage. METHODS: Data were collected from electronic databases: MEDLINE database, Scopus, and Web of Knowledge. Four combinations of term were used as keywords: screw orthodontic failure, screw orthodontic success, implant orthodontic failure, and implant orthodontic success. The following selection criteria were used to select appropriate articles: articles on implants and screws used as orthodontic anchorage, data only from human subjects, studies published in English, studies with more than 50 implants/screws, and both prospective and retrospective clinical studies. RESULTS: The search provided 209 abstracts about TADs used as anchorage. After reading and applying the selection criteria, 26 articles were included in the study. The data obtained were divided into two topics: which factors affected TAD success and to what degree and in how many articles they were quoted. Clinical factors were divided into three main groups: patient-related, implant-related, and management-related factors. CONCLUSIONS: Although all articles included in this meta-analysis reported success rates of greater than 80 per cent, the factors determining success rates were inconsistent between the studies analysed and this made conclusions difficult.
INTRODUCTION: The aim of this study was to review the literature and evaluate the failure rates and factors that affect the stability and success of temporary anchorage devices (TADs) used as orthodontic anchorage. METHODS: Data were collected from electronic databases: MEDLINE database, Scopus, and Web of Knowledge. Four combinations of term were used as keywords: screw orthodontic failure, screw orthodontic success, implant orthodontic failure, and implant orthodontic success. The following selection criteria were used to select appropriate articles: articles on implants and screws used as orthodontic anchorage, data only from human subjects, studies published in English, studies with more than 50 implants/screws, and both prospective and retrospective clinical studies. RESULTS: The search provided 209 abstracts about TADs used as anchorage. After reading and applying the selection criteria, 26 articles were included in the study. The data obtained were divided into two topics: which factors affected TAD success and to what degree and in how many articles they were quoted. Clinical factors were divided into three main groups: patient-related, implant-related, and management-related factors. CONCLUSIONS: Although all articles included in this meta-analysis reported success rates of greater than 80 per cent, the factors determining success rates were inconsistent between the studies analysed and this made conclusions difficult.
Authors: Jan Hourfar; Dirk Bister; Georgios Kanavakis; Jörg Alexander Lisson; Björn Ludwig Journal: Head Face Med Date: 2017-06-14 Impact factor: 2.151