The Stability of Mesial and Distal Bony Segments after Sagittal Split Ramus Osteotomy Using PLLA Screws

• INOUE Rika

  Department of Orthodontics, School of Dentistry, The University of Tokushima

• HIURA Kenji

  Department of Orthodontics, School of Dentistry, The University of Tokushima

• YOKOZEKI Masahiko

  Department of Orthodontics, School of Dentistry, The University of Tokushima

• HAYASHI Eiji

  First Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Tokushima

• NAGAYAMA Masaru

  First Department of Oral and Maxillofacial Surgery, School of Dentistry, The University of Tokushima

• MORIYAMA Keiji

  Department of Orthodontics, School of Dentistry, The University of Tokushima

Bibliographic Information

Other Title

• ＰＬＬＡ製スクリューを用いた下顎枝矢状分割術後の近・遠位骨片の安定性

Abstract

The biodegradable poly-L-lactic acid (PLLA) screw is a newly developed surgical material for use in fixing bone segments in sagittal split ramus osteotomy (SSRO) of the mandible for jaw deformity patients. The purpose of this study was to examine the stability of dento-facial morphology of mandibular prognathism patients after SSRO using PLLA screws. Six patients who underwent SSRO with PLLA screws (3 males and 3 females; the PLLA group), and six patients who underwent SSRO with conventional titanium screws (2 males and 4 females; the titanium group), were compared using frontal and lateral cephalograms taken before, as well as at 0, 6, and 12 months after, the surgery. The cephalometric changes, which were evaluated using standard scores, revealed no significant difference between the two groups at any postsurgical stages. No complications, such as allergy, inflammation, and pain, were reported in either the PLLA or the titanium group. These results suggested that the PLLA screw might be a useful surgical material that can be chosen for bone fixation in SSRO of jaw deformity patients.

Journal

• The Japanese Journal of Jaw Deformities

  The Japanese Journal of Jaw Deformities 11 (1), 29-34, 2001

  THE JAPANESE SOCIETY FOR JAW DEFORMITIES

Keywords

• sagittal split ramus osteotomy
• mandibular prognathism
• PLLA screws

Details

• CRID: 1390282679427669248
• NII Article ID: 10020408697
• NII Book ID: AN10366185
• DOI: 10.5927/jjjd1991.11.29
• ISSN: 18845045
• ISSN: 09167048
• ISSN: http://id.crossref.org/issn/09167048
• Web Site: https://search.jamas.or.jp/link/ui/2012239502
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed