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Comparative Study of Skeletal Stability between Postoperative Skeletal Intermaxillary Fixation and No Skeletal Fixation after Bilateral Sagittal Split Ramus Osteotomy: an 18 Months Retrospective Study.

Hartlev J, Godtfredsen E, Andersen NT, Jensen T - J Oral Maxillofac Res (2014)

Bottom Line: There was no statistical significant (P > 0.05) difference between the skeletal IMF group and the no skeletal group regarding advancement nor relapse at B-point or Pog.This study demonstrated no difference of relapse between the skeletal intermaxillary fixation group and the no skeletal intermaxillary fixation group.Because of selection-bias and the reduced number of patients it still remains inconclusive whether to recommend skeletal intermaxillary fixation or not in the prevention of relapse after mandibular advancement.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg Denmark. ; Department of Oral and Maxillofacial Surgery, Aarhus University Hospital, Aarhus Denmark.

ABSTRACT

Objectives: The purpose of the present study was to evaluate skeletal stability after mandibular advancement with bilateral sagittal split osteotomy.

Material and methods: Twenty-six patients underwent single-jaw bilateral sagittal split osteotomy (BSSO) to correct skeletal Class II malocclusion. One group (n = 13) were treated postoperatively with skeletal elastic intermaxillary fixation (IMF) while the other group (n = 13) where threated without skeletal elastic IMF.

Results: The mean advancement at B-point and Pog in the skeletal elastic IMF group was 6.44 mm and 7.22 mm, respectively. Relapse at follow-up at B-point was -0.74 mm and -0.29 mm at Pog. The mean advancement at B-point and Pog in the no skeletal elastic IMF group was 6.30 mm and 6.45 mm, respectively. Relapse at follow-up at B-point was -0.97 mm and -0.86 mm at Pog. There was no statistical significant (P > 0.05) difference between the skeletal IMF group and the no skeletal group regarding advancement nor relapse at B-point or Pog.

Conclusions: Bilateral sagittal split osteotomy is characterized as a stable treatment to correct Class II malocclusion. This study demonstrated no difference of relapse between the skeletal intermaxillary fixation group and the no skeletal intermaxillary fixation group. Because of selection-bias and the reduced number of patients it still remains inconclusive whether to recommend skeletal intermaxillary fixation or not in the prevention of relapse after mandibular advancement.

No MeSH data available.


Related in: MedlinePlus

A scatter plot of the correlation between the amount of advancement and relapse at pogonion in the skeletal IMF group and in the no skeletal IMF group.
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fig4: A scatter plot of the correlation between the amount of advancement and relapse at pogonion in the skeletal IMF group and in the no skeletal IMF group.

Mentions: The mean advancement at B-point and Pog was 6.44 mm and 7.22 mm, respectively (Table 2). Relapse at follow-up at B-point was -0.74 mm and -0.29 mm at Pog. There was no correlation between the amount of advancement and the amount of relapse at B-point (rho = 0.29, P = 0.34) nor Pog (rho = 0.38, P = 0.2) (Figure 3 and 4).


Comparative Study of Skeletal Stability between Postoperative Skeletal Intermaxillary Fixation and No Skeletal Fixation after Bilateral Sagittal Split Ramus Osteotomy: an 18 Months Retrospective Study.

Hartlev J, Godtfredsen E, Andersen NT, Jensen T - J Oral Maxillofac Res (2014)

A scatter plot of the correlation between the amount of advancement and relapse at pogonion in the skeletal IMF group and in the no skeletal IMF group.
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4007368&req=5

fig4: A scatter plot of the correlation between the amount of advancement and relapse at pogonion in the skeletal IMF group and in the no skeletal IMF group.
Mentions: The mean advancement at B-point and Pog was 6.44 mm and 7.22 mm, respectively (Table 2). Relapse at follow-up at B-point was -0.74 mm and -0.29 mm at Pog. There was no correlation between the amount of advancement and the amount of relapse at B-point (rho = 0.29, P = 0.34) nor Pog (rho = 0.38, P = 0.2) (Figure 3 and 4).

Bottom Line: There was no statistical significant (P > 0.05) difference between the skeletal IMF group and the no skeletal group regarding advancement nor relapse at B-point or Pog.This study demonstrated no difference of relapse between the skeletal intermaxillary fixation group and the no skeletal intermaxillary fixation group.Because of selection-bias and the reduced number of patients it still remains inconclusive whether to recommend skeletal intermaxillary fixation or not in the prevention of relapse after mandibular advancement.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, Aalborg University Hospital, Aalborg Denmark. ; Department of Oral and Maxillofacial Surgery, Aarhus University Hospital, Aarhus Denmark.

ABSTRACT

Objectives: The purpose of the present study was to evaluate skeletal stability after mandibular advancement with bilateral sagittal split osteotomy.

Material and methods: Twenty-six patients underwent single-jaw bilateral sagittal split osteotomy (BSSO) to correct skeletal Class II malocclusion. One group (n = 13) were treated postoperatively with skeletal elastic intermaxillary fixation (IMF) while the other group (n = 13) where threated without skeletal elastic IMF.

Results: The mean advancement at B-point and Pog in the skeletal elastic IMF group was 6.44 mm and 7.22 mm, respectively. Relapse at follow-up at B-point was -0.74 mm and -0.29 mm at Pog. The mean advancement at B-point and Pog in the no skeletal elastic IMF group was 6.30 mm and 6.45 mm, respectively. Relapse at follow-up at B-point was -0.97 mm and -0.86 mm at Pog. There was no statistical significant (P > 0.05) difference between the skeletal IMF group and the no skeletal group regarding advancement nor relapse at B-point or Pog.

Conclusions: Bilateral sagittal split osteotomy is characterized as a stable treatment to correct Class II malocclusion. This study demonstrated no difference of relapse between the skeletal intermaxillary fixation group and the no skeletal intermaxillary fixation group. Because of selection-bias and the reduced number of patients it still remains inconclusive whether to recommend skeletal intermaxillary fixation or not in the prevention of relapse after mandibular advancement.

No MeSH data available.


Related in: MedlinePlus