Management of Class II div I malocclusion-A case report

Aim & Objectives of the present case report was to evaluate the management of Class II div I malocclusion in adolescent patient with extraction of premolars. Clinical & cephalometric evaluation revealed Class II div I dental pattern on Class I Skeletal relation with sever maxillary incisor proclination, convex profile, average mandibular plane angle, Protruded lower lips, incompetent lips, increased overjet & overbite, over retained upper right deciduous 2nd molar. The case was successfully managed initially by expansion of upper arch simultaneously while facilitating eruption of unerrupted right maxillary 2nd premolar by extraction of over retained upper right deciduos 2nd molar. Later extraction of all first Premolars & fixed appliance therapy using MBT mechanics Keywords: Class II div I malocclusion, Premolar extraction

Invisalign: The invisible braces

Invisalign system is proprietary to align technology. In this system the clinician forms a diagnosis, plans the treatment and communicates this desired plan through internet to lab technicians. Who refine these communications via the computerized clin check until the clinician is satisfied with the plan; Aligners are then fabricated and shipped to the treating clinician. Patient compliance is superior because of high accuracy and invisibilit

Miniaturised UWB MIMO antenna with improved isolation and band notch capability at 5.5 GHz

Abstract A two-element planar UWB-MIMO monopole antenna is proposed utilising complimentary split ring resonator (CSRR) slot to obtain high isolation and notch at 5.5 GHz. The UWB-MIMO system comprises of two identical monopole antennas designed to achieve miniaturized size of 18 x 30 mm2. A T-shaped parasitic stub is employed to attain superior isolation among the antenna elements. CSRR slot is etched to achieve notch in WLAN range at 5.5GHz and additionally to improve impedance matching a rectangular slot was inducted on the radiators. The projected design hovers over the range 3.3GHz-14.64 GHz and attained high isolation of ≤-20 dB for 3.3 GHz-12.4 GHz and-16dB for rest of the band. The antenna system is simulated and fabricated to analyze the performance in terms of reflection coefficient and radiation pattern. The outcome testifies that the proposed design is a vastly miniaturized structure with all the capabilities of being a appropriate candidate for UWB-MIMO systems.</jats:p