To learn more about the living history of Mount Jackson, stop by the Mount Jackson Museum, located in Town Center. For stories of the history of our surrounding area, visit the Shenandoah County Historical Society online. An issue of Cooperative Magazine features Mount Jackson.
What is backlash in gear terms? The term backlash is defined as the amount by which a tooth space exceeds the thickness of a gear tooth engaged in mesh. It is necessary to ensure the smooth rotation of meshed gears. The following extract is from the KHK Gear Catalogue* which details the types of backlashes, the relationships between backlashes and the fundamental equations, as well as easy-to-understand illustrations of how it all works.
Soft Tissue Grafting. The crown of a tooth is that part that is above the gums. Sometimes more of the tooth below the gums must be exposed to fill a cavity near the gumline or place a new crown on a broken tooth. Crown lengthening provides more tooth structure for this to to be done. This ensures that the restoration or crown procedure is successful and prevents gum irritation. Procedure: The periodontist administers a local anesthetic and gently recontours excess gum and bone tissue to expose more of your natural tooth.