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Acta Odontol Scand. 2017 Jul;75(5):372-375. doi: 10.1080/00016357.2017.1317830. Epub 2017 Apr 21.

Duration of orthognathic-surgical treatment.

Author information

1
a Department of Ear and Oral Diseases , Tampere University Hospital , Tampere , Finland.
2
b Science Center, Pirkanmaa Hospital District and Faculty of Social Sciences, University of Tampere , Tampere , Finland.
3
c Faculty of Medicine and Life Sciences , University of Tampere , Tampere, Finland.

Abstract

OBJECTIVE:

The objective of this study was to determine the duration of orthognathic-surgical treatment conducted with conventional pre- and post-surgical orthodontic treatment phases.

MATERIAL AND METHODS:

The study material was comprised of the files of 185 consecutive patients treated in Oral and Maxillofacial Unit, Tampere University Hospital, Finland, in 2007-2014. The files were reviewed and the following data was obtained: gender and age of patients, ICD-10 diagnosis, type of malocclusion, duration of pre- and post-surgical orthodontic treatment and type of operation.

RESULTS:

Total treatment duration (median) from placement of separating rings for banding until fixed orthodontic appliances were removed and retention period started was 31.1 months, of which pre-surgical orthodontics took 24.4 months and postsurgical 6.4 months. Treatment duration (median) was in BSSO was 32.1, LeFort 1 30.1 and bimaxillary osteotomy 29.7 months. Orthodontic extractions were performed in 35 patients (19%). If the orthodontic treatment included tooth extraction, the duration of pre-surgical treatment was on average 10 months longer, which is a statistically highly significant difference (p < .001, linear regression).

CONCLUSIONS:

Tooth extractions (excluding 3rd molars) included in pre-surgical orthodontic treatment prolong treatment time by an average of 8-9 months.

KEYWORDS:

Orthodontics; orthognathic surgery; tooth extraction; treatment duration

PMID:
28431477
DOI:
10.1080/00016357.2017.1317830
[Indexed for MEDLINE]

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