Original Title: Orthodontic Knowledge Popular Science Post: Detailed Explanation of Orthodontic Braces Device Components (with Pictures) 1. Type of appliance: 1. Labial appliance: appliance components such as brackets and steel wires are pasted on the labial and buccal surfaces of the crown. (1) Metal bracket appliance: There are square wire brackets and straight wire brackets, which look almost the same. Various metal brackets: Expand the full text Damon Q self-ligating bracket Damon 3MX metal self-ligatingsed aesthetic wire (steel wire with a layer of white film) GAC ceramic self-ligating bracket Upper half ceramic bracket VS. Metal brackets in the lower half 2. Lingual appliance Bracket, steel wire and other appliance components are pasted on the lingual side of the crown. 3. Bracketless appliance American products are Invisalign, and Chinese products include Angel, Zhengya, Henghui and other bracketless invisible appliances. 2. Appliance components: 1. Bracket: It is directly bonded to the surface of the crown with adhesive,Titanium welding pipe
, and the arch wire applies various types of orthodontic force to the tooth through the bracket. 2. Arch wire: It usually refers to the "main arch wire", which is an arc-shaped steel wire that passes through the grooves of all brackets and the buccal tubes of molars to connect the appliance components into a whole. (1) Bows of various sizes: according to the shape of the cross section, they are divided into round wire, square wire and rectangular wire. Its size is expressed in inches, for example,titanium bar gr5
, 0.016 "NITI means that the steel wire material is 0.016 inch nickel-titanium round wire, and 0.018 X 0.025" SSW means that the steel wire material is 0.018 X 0.025 rectangular stainless steel wire (referred to as 1825 stainless steel square wire). Shape of archwire cross section (2) There are various types of steel wire: super elastic nickel-titanium wire, nickel-titanium wire containing copper, stainless steel wire. Classic curved nickel-titanium wire (finished product) Nickel titanium wire in the shape of a rocking chair (finished product) Classic steel wire arc, this is a straight arch wire, mostly finished products, can also be personalized bending by doctors. Multi-curve stainless steel square wire (many "L" curves are bent on the basis of maintaining the arc of the steel wire), which is individually bent by the doctor according to the width of the patient's teeth. This kind of silk has no finished products, can only be personalized bending, production and application are more difficult. But there are some special effects. The multi-curved square silk is applied to the oral cavity of the patient (the patient who wears this silk is hard, nickel titanium wire
,Titanium 6Al4V wire
, but some cases need to use this, which is of special significance.) 3. Band and buccal tube: The traditional appliance needs to put a band on the molar, weld a buccal tube on the band, and the hole of the buccal tube is to accommodate the steel wire. Thanks to the improved bonding effect of the adhesive, the band ring is ng. Its function is to strengthen the anchorage of molars and prevent the forward movement of molars. 4. Mesh bottom buccal tube: If there is no need to make a special device, the mesh bottom buccal tube can be used to directly stick to the tooth surface of the big tooth, so there is no need to make a ring or divide the tooth. Therefore, orthodontics is not necessary to do the teeth.
The buccal tube at the bottom of the mesh is used, so that the oral hygiene of the patient is easy to maintain, the irritation to the gum is small, and the food impaction is not easy to occur. And the food impaction after the removal of the appliance is avveral typical traction modes are listed here: -Horizontal traction: -Type 2 traction: -Type 3 traction: indicated by the arrow of 7 in the figure. Enlarged image showing Type 3 traction -Other types of traction, such as triangular traction: Triangular traction Short intermaxillary traction 11. Chain rubber band (also known as rubber chain): a super-elastic chain rubber band is used to close a small gap,titanium exhaust tubing
, to make the teeth closer together, or to prevent the gap between the teeth (to prevent the recurrence of the gap). This article is from the Internet. If there is any infringement, please contact WeChat customer service and return to Sohu to see more. Responsible Editor:. yunchtitanium.com