Evidence map›Paper›PMID 28660420›Full record

ArticleJournal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie2017

Effects of combined orthodontic-orthognathic treatment for class II and III correction on posterior airway space : Comparison of mono- and bignathic osteotomies.

Jan Hourfar, Gero Stefan Michael Kinzinger, Hartmut Feifel, Verena Maria Vehr, Jörg Alexander Lisson

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 37% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 6 citations in OpenAlex.

  1. Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jan HourfarDepartment of Orthodontics, Saarland University, Universitätskliniken 56, 66424, Homburg/Saar, Germany.
Gero Stefan Michael KinzingerDepartment of Orthodontics, Saarland University, Universitätskliniken 56, 66424, Homburg/Saar, Germany.
Hartmut FeifelPractice and Department of Oral and Maxillofacial Surgery, Marienhospital, Aachen, Germany.
Verena Maria VehrDepartment of Orthodontics, Saarland University, Universitätskliniken 56, 66424, Homburg/Saar, Germany.
Jörg Alexander LissonDepartment of Orthodontics, Saarland University, Universitätskliniken 56, 66424, Homburg/Saar, Germany. joerg.lisson@uniklinikum-saarland.de.
Saarland University · DEFranziskushospital Aachen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesComparison of treatment effects on the posterior airway space (PAS) in patients treated with combined orthodontic-orthognathic surgical treatment.

methodsPre- and postsurgical lateral cephalograms of 53 (34 females, 19 males) Caucasian patients were analyzed using a customized set of measurements. According to malocclusion (Class II or III) and surgical approach (either monognathic or bignathic), patients were allocated into four groups. PAS was assessed from cranial to caudal at six levels (P1-P6). Paired t tests were used for intragroup and t tests for independent samples for intergroup comparisons. Results were considered statistically significant at p < 0.05.

resultsIn patients treated for Class II malocclusion, PAS retropalatally (P1 level) almost remained unchanged, whereas measurements at levels P2-P6 showed a mean increase ranging from approximately 2-5.5 mm. Significant changes were most pronounced in monognathic Class II patients (group 1) at levels P2-P4 with mean values ranging from approximately 3.7-5.5 mm. In patients treated for Class III malocclusion (groups 3 and 4), measurements at the P1 level almost remained unchanged in patients who underwent mandibular setback surgery (group 3), whereas the same measurements exhibited significant increase (>6 mm) in patients treated with bignathic surgery (group 4).

conclusionsBignathic surgery led to smaller changes of pharyngeal depth in Class II and III patients than monognathic surgery. Alterations of the PAS due to orthognathic surgery should be considered during orthodontic and presurgical treatment planning.

Indexed as

Airway RemodelingCephalometryCombined Modality TherapyHumansMalocclusion, Angle Class IIMalocclusion, Angle Class IIIOrthodontics, CorrectiveOrthognathic Surgical ProceduresOsteotomyPostoperative ComplicationsAngle Class IIAngle Class IIICephalometric studyOrthognathic surgeryPharyngeal depth

Identifiers

PMID28660420
OpenAlexW2775126009

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.