Comparison of complications in the conventional telescopic Herbst rod and tube and Manni telescopic Herbst: A retrospective clinical study

• Main Authors: Cerruto, C. (Author), Cozzani, M. (Author), Giraudo, P. (Author), Manni, A. (Author), Mutinelli, S. (Author), Romano, R. (Author)
• Format: Article
• Language: English
• Published: Allen Press Inc. 2018
• Subjects: adverse device effect; child; Child; comparative study; Complications; female; Female; functional orthodontic appliance; Herbst; human; Humans; male; Male; malocclusion; Malocclusion, Angle Class II; MTH; Orthodontic Appliances, Functional; Retrospective Studies; retrospective study; RMS; treatment outcome; Treatment Outcome
• Online Access: View Fulltext in Publisher
• ISBN: 00033219 (ISSN)
• DOI: 10.2319/082317-569.1

Objectives: To compare the prevalence of clinical complications between two different telescopic Herbst systems: the conventional telescopic system, with traditional rod and tube (RMS), and the Manni telescopic Herbst appliance (MTH). Materials and Methods: Ninety subjects treated with RMS were compared to 89 patients treated with MTH. All of the complications that occurred were reported, and percentages of prevalence were calculated. Results: MTH showed a significantly lower percentage of reversible complications (that did not require appliance removal) when compared to the reversible complications during RMS treatment (20.2% vs 51.1%). No statistically significant differences were found between RMS and MTH regarding irreversible complications (that required appliance removal and full re-make). All of the irreversible complications occurred after reversible complications in the RMS group, while most of the irreversible complications in the MTH group occurred without any previous reversible complication. Conclusions: MTH exhibited a smaller number of clinical complications during Class II skeletal malocclusion therapy. (Angle Orthod. 2018;88:377-383.) © 2018 by The EH Angle Education and Research Foundation, Inc.