Success Rates of a CAD/CAM Nickel–Titanium Orthodontic Fixed Retainer

Article Article scientifique Article Success Rates of a CAD/CAM Nickel–Titanium Orthodontic Fixed Retainer eng 2025-12-11 author Huanca Ghislanzoni Luis Tomas 831345 author Durgnat Candice Garance 872078 CUMD - Clinique d'orthodontie (CORT) author Antonarakis Gregory 0000-0001-6741-6922 133276 CUMD - Division d'orthodontie - communs (DORT) 8762 10.3390/jcm14248762 41464664 2077-0383 PMC12733666 https://www.mdpi.com/2077-0383/14/24/8762 <p>Background/Objectives: The present study aims to assess the success rate of a CAD/CAM nickel–titanium wire (Memotain®) used as a fixed orthodontic retainer, over a one-year period. Methods: A retrospective study was conducted on 338 CAD/CAM nickel–titanium (Memotain®) fixed retention wires in 205 patients, bonded by a single experienced operator between January 2017 and December 2020. Follow-up visits were scheduled 6 (T1) and 12 months (T2) post-bonding. At each follow-up visit, events (defined as debonding, breakage, retainer loss, or tooth displacement) were classified by tooth, and success or failure of the retainer was determined based on the presence or absence of these events. Results: For the mandibular arch at T1 (6 months), the success rate was 85%, with debonding (n = 46) being the only event observed. At T2 (12 months), the success rate was 77%, with debonding (n = 30), wire breakage (n = 5) and retainer loss (n = 18) having occurred. For the maxillary arch, the overall success rate was 83% at T1 and 78% at T2. Debonding was the most common event observed over the 12-month observation period (n = 29), followed by retainer loss (n = 20) and wire breakage (n = 3). The overall success rates per type of tooth in the upper arch were 86% for the premolars, 96% for the canines, 95% for the lateral incisors and 93% for the central incisors. For the mandibular arch the success rates were 92% for the premolars, 97% for the canines, 96% for the lateral incisors and 94% for the central incisors. Conclusions: CAD/CAM nickel–titanium fixed retainers (Memotain®) demonstrated promising 1-year survival rates in both arches, though long-term multicentre studies are needed to confirm their reliability.</p> CAD/CAM Fixed retainer Retainer Retrospective study Dewey 617.6 209 Division d'orthodontie 24Q1 false 1448 Orthodontie 1065 Journal of clinical medicine 14 24 592b50d4-1ee7-4641-9534-1efdc0df828b Article (Published version) Public 2025_Huanca_Ghislanzoni_et_al_(JCM).pdf 453403 application/pdf CC BY-4.0 aca02860aaedf3655d3832f0be72de3a8140ad84c47f8eee81dd2efb43b600d5 openAccess Faculté de médecine / Section de médecine dentaire / Département de réhabilitation oro-faciale / Division d'orthodontie

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Success Rates of a CAD/CAM Nickel–Titanium Orthodontic Fixed Retainer	Journal of clinical medicine	2025	10	361
Success rates of an orthodontic fixed retainer at one year		2022	59	0

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Durgnat, Candice Garance

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