An important component of orthognathic surgery is the bilateral sagittal split osteotomy (BSSO), which is the most commonly performed jaw surgery, either with or without upper jaw surgery. Indications for a bilateral sagittal split include horizontal mandibular excess, deficiency, and/or asymmetry.
What is a LeFort BSSO?
LeFort I osteotomy is used in combination with the bilateral sagittal split osteotomy (BSSO) in correcting the secondary maxillary effects seen in asymmetrical mandibular deformities. These asymmetries are usually attributed to unilateral mandibular condylar hyperplasia during active growth of the maxilla and mandible.
How long does mandibular osteotomy take?
During surgery Most surgeries take 2 to 5 hours, but the exact length of time depends on the specific procedure being performed. During jaw surgery, most of the incisions are made inside your mouth, although in some cases very small incisions will be made on the outside.
How is BSSO performed?
A Bilateral Sagittal Split Osteotomy (or BSSO) is a type of jaw surgery where the lower jaw is separated from the face and repositioned. This repositioning is also called orthognathic surgery. This particular virtual patient has a protruding jaw which will be set back using a BSSO.
What is BSSO orthodontics?
Bilateral Sagittal Split Osteotomy (BSSO) Mandibular Surgery.
How common is jaw surgery relapse?
The relapse rate was 21% among patients who had undergone upper-jaw surgery versus 27% among those who had undergone lower-jaw surgery, which was statistically significant. Conclusion: The majority of patients exhibited stable treatment outcomes.
Will jaw surgery change my face?
Jaw surgery, also known as orthognathic (or-thog-NATH-ik) surgery, corrects irregularities of the jaw bones and realigns the jaws and teeth to improve the way they work. Making these corrections may also improve your facial appearance.
How long is a BSSO surgery?
This procedure generally takes about 30 minutes to perform, and patients are usually able to return to work and other regular activities the next day.
Is BSSO a good treatment option for Class II mandibular advancement?
BSSO for mandibular advancement is a good treatment option for skeletal Class II, but seems less stable than BSSO setback in the short and long terms. Bicortical screws of titanium, stainless steel, or bioresorbable material show little difference regarding skeletal stability compared with miniplate …
What is a BSSO procedure?
This procedure is versatile and can be used to achieve mandibular movements that include forward and backward sliding osteotomies, as well as corrective surgery for mandibular asymmetries. The BSSO can be carried out as a single jaw procedure or as part of a bimaxillary procedure.
Are the mandibular dental midline and the midpoint of the chin coincident?
With regards to the clinical assessment of the mandible, it is fundamental to establish if the mandibular dental midline and the midpoint of the chin are coincident as this may influence orthodontic and surgical treatment decisions significantly.
