The Increased Y-Axis Angle In Downs Write short note on Y-axis. Answer. The angle is obtained by joining the FH plane with sellagnathion line. Y-axis is of the two types, i.e. Down's Y-axis and Rakosi’s Y-axis. "Understanding the role of the Y-axis angle in orthodontic diagnosis" Down's Y-axis Down's Y-axis is also known as growth axis. Y-axis forms an … [Read more...] about Increased Y-Axis Angle In Downs
Cephalometric Planes
Cephalometric Planes "What are cephalometric planes and why do they matter in orthodontics?" Cephalometrics uses certain lines or planes The planes/lines are obtained by connecting two landmarks. The planes can be horizontal/vertical. "Understanding the role of cephalometric planes in treatment planning" Horizontal Planes SN plane: It is the cranial line … [Read more...] about Cephalometric Planes
Hyalinization During Orthodontic Tooth Movement
Hyalinization During Orthodontic Tooth Movement Question 1. Write short note on hyalinization. Answer. If the orthodontic force increases more than the capillary pulse pressure, i.e. 20–26 gm/cm2 blood vessels get compressed or occluded. "Understanding the role of hyalinization in orthodontic treatment" As PDL get compressed the blood supply of compressed area get cut … [Read more...] about Hyalinization During Orthodontic Tooth Movement
Piezoelectronic Theories Of Tooth Movement
Bone Bending And Piezoelectric Theory Of Tooth Movement Write short note on piezoelectronic theories of tooth movement. Answer. Farrar (l876) fist noted deformation or bending of the interseptal alveolar walls. According to Farrar bone bending may be a possible mechanism for bringing about tooth movement. Piezoelectricity is a phenomenon observed in many … [Read more...] about Piezoelectronic Theories Of Tooth Movement
Impact of Pressure-Tension Theory by Schwarz in 1932 on Orthodontic Tooth Movement
Frontal Resorption "What is the pressure-tension theory by Schwarz in 1932 and why does it matter?" Frontal resorption is also known as periosteal resorption or direct resorption or forward resorption. Frontal resorption is the type of tissue change at the pressure zone in orthodontic tooth movement which follows the application of light force. When the forces applied … [Read more...] about Impact of Pressure-Tension Theory by Schwarz in 1932 on Orthodontic Tooth Movement