Trial reportSleep & breathing = Schlaf & Atmung2017
Obstructive sleep apnea treated with custom-made bibloc and monobloc oral appliances: a retrospective comparative study.
Trial report in Sleep & breathing = Schlaf & Atmung, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04427111 (Therapeutic Efficiency Analyses of Mandibular Advancement Devices on Obstructive Sleep Apnea Using Polysomnography, Smartphone Sleep Applications, and Simple Pulse Oximeter), which is not on this map. Cited by 9 papers, 1 of them a synthesis that pooled 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.
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.
Therapeutic Efficiency Analyses of Mandibular Advancement Devices on Obstructive Sleep Apnea Using Polysomnography, Smartphone Sleep Applications, and Simple Pulse Oximeter
Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The Efficacy of Various Orthodontic Appliances in the Treatment of Obstructive Sleep Apnea.Acta medica academica · 2024Pooled it
- Use of bibloc and monobloc oral appliances in obstructive sleep apnoea: a multicentre, randomized, blinded, parallel-group equivalence trial.European journal of orthodontics · 2019Trial
- Most Custom Oral Appliances for Obstructive Sleep Apnea Do Not Meet the Definition of Custom.Bioengineering (Basel, Switzerland) · 2025Review
- Different Oral Appliance Designs Demonstrate Different Rates of Efficacy for the Treatment of Obstructive Sleep Apnea: A Review Article.Bioengineering (Basel, Switzerland) · 2025Review
- Article
- The Effect of Bite Raise on AHI Values in Adult Patients Affected by OSA: A Systematic Review with Meta-Regression.Journal of clinical medicine · 2023Review
- More Than the Trajectory of the Teeth, We Need to Know About the Treatment Trajectory of Patients.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2018Article
- Obstructive sleep apnea: focus on myofunctional therapy.Nature and science of sleep · 2018Review
- Oral appliance therapy in obstructive sleep apnea: Long-term adherence and patients experiences.Medicina oral, patologia oral y cirugia bucal · 2018Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe primary purpose of this hypothesis-generating retrospective study was to compare the effect of monobloc and bibloc (Narval™) appliances on the apnea-hypopnea index (AHI) and the total cost of treatment during the first year of treatment.
methodsObstructive sleep apnea (OSA) subjects treated with a monobloc or bibloc during two different time periods were identified from medical records and data were extracted. Subjects treated with either of the appliances passed the same primary examination, follow-up visits, and follow-up polygraphic examination. A 1-year clinical follow-up was made on the bibloc group.
resultsThe study analysis included 110 monobloc- and 55 bibloc-treated subjects with baseline mean AHI of 23 and 22, respectively. AHI responders (AHI < 10 and/or a ≥50 % reduction of baseline AHI) were seen at follow-up in 61 % of the monobloc group and 56 % of the bibloc group. The improvement of the AHI value was similar in the two groups, with mean declines of 12.7 and 13.8, respectively. The ODI (oxygen desaturation index), lowest SpO
conclusionsThe results indicate that the monobloc and bibloc appliances are equally effective but the cost of treatment over 1 year was higher with the bibloc. However, prospective randomized controlled trials are needed to adequately test the assumption that the two treatment modalities are equally effective.
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Registered trials
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.