caa a22 4500 445347708 CHVBK 20180317142834.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00056-011-0026-3 doi (NATIONALLICENCE)springer-10.1007/s00056-011-0026-3 Expectations, acceptance and preferences of patients in treatment with orthodontic mini-implants [Elektronische Daten] Part II: implant removal [S. Lehnen, F. McDonald, C. Bourauel, A. Jäger, M. Baxmann] Erwartungen, Akzeptanz und Präferenzen der Patienten bei Behandlungen mit orthodontischen Mini-Implantaten: Eine randomisierte kontrollierte Studie Teil II: Implantatexplantation Objective: The objective of this study was to compare mechanical and manual techniques to remove orthodontic mini-implants. We also investigated whether the treated patients preferred local anesthetics. The study's focus is on the patients' perceptions and the resulting preferences. Patients and methods: A total of 25 patients were randomly assigned to Group A or Group B. In Group A, the mini-implants were removed with a handpiece, while the Group-B patients' mini-implants were removed completely by hand. In addition, all patients received an injection of local anesthetic into one half of the jaw. No anesthetic was used on the other half of the jaw. The patients were asked about their pain perception before treatment, immediately after treatment and one day after treatment. Results: We observed no significant differences between the two groups with respect to the intensity of their symptoms. However, the noise associated with the handpiece was found to be unpleasant and tended to lead to more symptoms than when no handpiece was used. Pain perceived during mini-implant removal was relatively slight and not much affected by the use of local anesthetics. The most severe symptoms were associated with the injection itself. The non-injected side experienced significantly less discomfort and was thus the preferred side in both groups. Conclusion: The patients tolerated the two removal procedures equally well. As the noise associated with the handpiece increased discomfort, manual removal of the mini-implants is preferable. As regards the injection technique, our results show that local anesthesia during removal does not provide a benefit. The most pain was caused by the injection, not by removal of the mini-implants. Urban &amp; Vogel, Muenchen, 2011 Mini-implants nationallicence Orthodontic anchoring screws nationallicence Miniscrew removal techniques nationallicence Pain analysis nationallicence Numerical rating scale nationallicence Mini-Implantate nationallicence Kieferorthopädische Verankerungsschrauben nationallicence Minischraubenentfernungstechniken nationallicence Schmerzanalyse nationallicence Numerische Analogskala nationallicence Lehnen S. Private Orthodontic Practice, Bonn, Germany aut McDonald F. Department of Orthodontics and Paediatric Dentistry, King's College London, London, United Kingdom aut Bourauel C. Cendres+Métaux Endowed Professor of Oral Technology, Dental Clinic, University of Bonn, Bonn, Germany aut Jäger A. Department of Orthodontics, University of Bonn, Bonn, Germany aut Baxmann M. Department of Orthodontics and Paediatric Dentistry, King's College London, London, United Kingdom aut Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie Springer-Verlag 72/3(2011-07-01), 214-222 1434-5293 72:3<214 2011 72 56 https://doi.org/10.1007/s00056-011-0026-3 text/html Onlinezugriff via DOI 1 article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00056-011-0026-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lehnen S. Private Orthodontic Practice, Bonn, Germany aut NATIONALLICENCE 700 1- McDonald F. Department of Orthodontics and Paediatric Dentistry, King's College London, London, United Kingdom aut NATIONALLICENCE 700 1- Bourauel C. Cendres+Métaux Endowed Professor of Oral Technology, Dental Clinic, University of Bonn, Bonn, Germany aut NATIONALLICENCE 700 1- Jäger A. Department of Orthodontics, University of Bonn, Bonn, Germany aut NATIONALLICENCE 700 1- Baxmann M. Department of Orthodontics and Paediatric Dentistry, King's College London, London, United Kingdom aut NATIONALLICENCE 773 0- Journal of Orofacial Orthopedics / Fortschritte der Kieferorthopädie Springer-Verlag 72/3(2011-07-01), 214-222 1434-5293 72:3<214 2011 72 56 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer