English to French Other Medical: Dentistry

Often bone is formed but a long junctional epithelium migrates apically between it and the root surface thus preventing the formation of a true new attachment. Resective osseous surgery is a means of correcting bony deformities by removing bone. Ideally periodontal therapy should be designed to regenerate lost attachment. Not an easy task, numerous materials and techniques have been tried. Factors that may dictate success rates include the dimensions of and the number of bony wells making up the periodontal defect. In general the narrower the defect and the greater number of bony walls of the defect, the greater the chance of regeneration. The walls are needed to contain and nourish the expected growth site. A four-wall bony defect is an extraction socket, which will fill with bone. A three-wall defect has 3 bony walls; the 4th wall is the tooth root