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ePaper created 2016-04-19, 11:44:05 | version 1.38.0
clear aligners trends & applications | 19 ortho 1 2016 velopneweClignersoftwareutilisinga3-DCAD/CAM system. This system incorporates the same basic principlesashandmadeclearalignerswiththeadded benefits of improved control over tooth movement, digital diagnosis and treatment planning, as well as consistency in estimating treatment times. It also al- lows for better patient communication and solutions forlost/brokenalignersorrelapses.Bydevelopingthis advancedsoftwarein2009,theeClignerSystemgained significant clinical enhancements (Figs.6–11). Mechanics of the eCligner The eCligner System produces aligners from 3-D- printed resin models, which are created using the eCligner treatment planning software. Each model represents a step and is used to create three aligners of increasing thickness (soft, medium, and hard). The patientwearseachalignerfor1weekuntilthatstepis completeandthenmovesontothenextstep(3weeks intotal).eCligneralignersarewornfor17hoursaday andremovedwheneatingorwhendrinkinghotdrinks. TheTreatmentPlanisaguidefortheentireprocessand includes estimated treatment times, expected results, profile changes, and the amount and location of IPR (stripping) required. The Treatment Plan can also be usedtoevaluateextractionornon-extractionoptions inborderlinecases.eCligneralignersareacomfortable fitandtheincreasingthicknesshelpspromotegradual tooth movement, thus avoiding pain or irritation of the periodontal ligament tissue (Figs.12–18). Adult patients Foradultpatients,alignersshouldbeworn17hours every day except during mealtimes or when drinking hot drinks. Patients must wear the aligner each night andcleanthealignerwithatoothbrushdaily.eCligner alignerscanbeusedtocreatespaceforprosthodon- tic implants or extrusion for periodontal purposes. Fig.12: eClignerTreatment Plan, provides summarised data for expected result,treatment time,costs, movement pattern in each set-up and amount of stripping as well profile changes. Fig.13: In borderline cases, eCligner provides twoTreatment Plans, extraction and non-extraction, to compare the difference and consult with patient. Fig.14: Schematic view for eCligner treatment progress. Fig.15: eCligner supplies aligner and resin model. Figs.16a & b: Digital made set-up data in treatment plan for both upper and lower arch. Fig.17: eCligner wear. Fig.18: 2-D fine element experiment study resulted in 150 grams generated from 1 mm tooth movement on 0.75 mm thicknessTuPan.eCligner is able to move the target tooth 1 mm per month.Because it has 3 different thickness aligners to create optimum force from light force progressively. Fig.19: Crowding case treatment progress.Smile has been improved as to corrected incisor position. Fig.20: Before:Adolescent patient showed lingually erupted lateral incisor,has been treated in a short term (5 months of night time wear). Fig.21:After:Newly positioned lateral incisor.It is not necessary to continue the orthodontic treatment at this stage. It is recommended to let the patient have natural eruption. Fig.19 Fig.20 Fig.21 12016