Invisalign eighth-generation features for deep-bite correction and posterior arch expansion

Every few years Align Technology releases generational enhancements to improve the efficacy and efficiency of their Invisalign system. Each generation may influence ClinCheck software, aligner material, optimized attachments, tooth activations, or order in which teeth move.1.Moshiri M. Product review demonstration clear system.Am J Orthod Dentofacial Orthop Clin Companion. 2021; 1: 7-21Google Scholar Oftentimes, multiple changes occur within each new generation, working unison provide better biomechanical control. For example, orthodontists have traditionally struggled correct deep-bites non-growing patients with Invisalign.2.Kravitz N.D. Moshiri Nicozisis J. Miller S. Mechanical considerations for deep-bite correction aligners.Semin Orthod. 2020; 26: 134-138Abstract Full Text PDF Scopus (7) Google Scholar, 3.Kravitz Kusnoto B. BeGole E. Obrez A. Agran How well does work? A prospective clinical study evaluating movement Invisalign.Am Orthop. 2009; 135: 27-35Abstract PubMed (262) 4.Haouili N. Kravitz Vaid N.R. Ferguson D.J. Makki L. Has improved? follow-up on 158: 420-425Abstract (85) 5.Grünheid T. Loh C. Larson B.E. accurate is nonextraction cases? Are predicted positions achieved?.Angle 2017; 87: 809-815Crossref (72) 6.Khosravi R. Cohanim Hujoel P. Daher Neal Liu W. Huang G. Management overbite appliance.Am 151: 691-699Abstract (56) 7.Charalampakis O. Iliadi Ueno H. Oliver D.R. Kim KB. Accuracy aligners: a retrospective who needed refinement.Am 2018; 154: 47-54Abstract (67) The fifth-generation (G5) improved predictability by introducing pressure areas lingual upper lower anterior teeth, precision bite ramps incisors, beveled dome-shaped retention attachments premolars (Fig. 1).2.Kravitz purpose this article newest eighth-generation (G8) enhancements, aim further minimize unwanted crown tipping during posterior arch expansion. This serves as “Mechanical aligners” et al.2.Kravitz G8 features four improvements aid correction. These include: (1) balanced en-masse intrusion, (2) attachment lateral incisor, (3) overcorrection incisor intrusion flattened Curve Spee, (4) automatic placement intrusion. When intruding en-masse, intrusive force an individual could be impacted vertical position adjacent tooth. supra-erupted central affect incisor. With G8, calibrated individually per optimal forces starting at different positions. Typically, undergoing do not need but anchorage (prevention liftoff). domed-shaped was designed reason 2A B). feature triggered software when prescribed greater than 1 mm either canine In situation, authors prefer more robust 4 horizontal (HBA) over smaller attachment. modification update protocol previously presented.2.Kravitz Therefore, reverse steep mandibular now advocate G5/G7 extruded first molars premolars, HBAs intruded canines incisors. also helps Spee overcorrecting initial setup. additional activation automatically determined 3A Nonetheless, orthodontist likely still needed. particularly true challenging cases flat plane where space closure IPR occurring. To activate these features, threshold least 0.5 must treatment plan. It worth noting that same required G5 teeth. However, will premolar extraction spaces, although it would advisable add them prevent deepening Spee. addition, has updated questionnaire allow incisors cases. Internal data from shown use improves up 30%. Although can pre-selected ClinCheck, only if 1.5 4). expansion forces, buccal root torque, support molars, prioritization hierarchy. Like requires simultaneously, sufficient amounts. Traditionally, uncontrolled produces molar crowns.8.Zhou Guo Efficiency system.Angle 90: 23-30Crossref (33) Scholar,9.Houle J.P. Piedade Todescan Pinheiro FH. transverse Invisalign.Angle 19-24Crossref (62) results extrusion palatal cusps development open-bite. dental expansion, apply torque molars. works synergistically are attachments. One notable difference, however, comes rotational version 5A other words, manually adjusted Pro require both rotation. corresponds software's hierarchy activation. second priority software; two levels above 6). Though makes attempt best solution, then evaluate proposed systems determine they appropriate properly sequenced. plan features. Invisalign's primary functions: At trigger Despite algorithms creating compensation mechanisms, occasionally