Superimposition of Intra-oral Scans in MAD Therapy for OSA

NCT ID: NCT06612008

Last Updated: 2025-07-10

Basic Information

• Recruitment Status: NOT_YET_RECRUITING
• Total Enrollment: 250 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2025-07-31
• Study Completion Date: 2029-07-31

Brief Summary

Obstructive Sleep Apnea (OSA) affects quality of life and health. Mandibular Advancement Devices (MAD) can help with OSA but may cause dental and jaw changes. This study uses a new 3D scanning method to track these changes and compare two adjustment methods for MAD to find the best approach for patients.

Goals:

1. To track dental and jaw changes in OSA patients using 3D scans.

2. To assess the impact of MAD on quality of life and cognitive function.

Study Details:

The aim of the study is to follow OSA patients at multiple centers over several years, comparing two MAD adjustment methods. Participants will undergo routine fitting and imaging.

Outcome:

The study aims to reduce dental and jaw changes and to improve MAD treatment and patient outcomes.

Detailed Description

Rationale: Obstructive Sleep Apnea (OSA) significantly reduces quality of life and increases the risk of severe health issue. While Mandibular Advancement Devices (MAD) are effective in managing OSA symptoms, they often introduce undesirable dental and skeletal changes, which can have a negative impact on patient satisfaction. Recognizing this issue, this study hypothesizes that using an innovative 3D superimposition technique to track these changes will allow to compare two different titration protocols more precisely and determine the optimal approach for various patient groups. By identifying the most effective titration protocol, the aim is to enhance treatment adherence and treatment success, addressing a critical gap in existing literature and significantly improving patient outcomes in OSA treatment.

Objective:

1. Investigate dental and skeletal changes in OSA patients undergoing MAD treatment using an innovative 3D superimposition technique.

2. Assess the impact of MAD treatment on quality of life (QoL) and cognitive function.

Study design: A prospective multicentre observational cohort study will be conducted, involving four screening points: at the study's onset and during the first, second, and third annual follow-up assessments. This investigation will involve two patient cohorts undergoing different titration approaches: orthodontic titration and another commonly used titration protocol.

Study population: The study will include adults with mild to moderate OSA who will undergo MAD treatment.

Intervention: Participants will be fitted with a MAD as part of their routine clinical care. The intervention involves the collection of baseline intra-oral scans (IOS), lateral cephalograms (LCR), orthopantomograms (OPT), and a collection of orthodontic parameters. These assessments will be repeated at each follow-up appointment.

Main study parameters/endpoints:

1. Dental and skeletal changes tracked over time using intra-oral scans (IOS), lateral cephalograms (LCR), orthopantomograms (OPT), and complete orthodontic evaluations.

2. Changes in quality of life (QoL) and cognitive function assessed through validated questionnaires.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Patients will experience the routine procedure of MAD fitting and imaging assessments. The study's positive outcomes encompass advancing the knowledge of the enduring impacts of MAD treatment on oral health. Participants will not incur any additional risks by engaging in this research, as it solely involves additional routine diagnostic procedures. The study is group-related, focusing on OSA patients undergoing MAD therapy.

Conditions

Obstructive Sleep Apnea

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Study Groups

Stepwise titration

Patients will receive a MAD with an individualized stepwise titration protocol. Initially, the device is set at 60% advancement of the maximum protrusion. Over the first 3 months, the advancement is adjusted incrementally (to 75% or 90%) based on subjective improvement in OSA symptoms and side effects. If side effects occur, the advancement is decreased.

Mandibular Advancement Device

Intervention Type: DEVICE

MADs are custom-fitted oral appliances designed to reposition the mandible (lower jaw) forward during sleep, which helps to keep the airway open by preventing upper airway collapse.

Personalized titration

Patients will receive a MAD set to baseline settings. Instead of following a standard titration process, personalized titration will use both objective data and subjective patient feedback to determine the optimal advancement. This approach takes into account individual factors such as the patient's oral anatomy, sleep study results, and specific symptoms. The goal is to achieve a personalized, optimal setting that maximizes symptom improvement and comfort.

Mandibular Advancement Device

Intervention Type: DEVICE

MADs are custom-fitted oral appliances designed to reposition the mandible (lower jaw) forward during sleep, which helps to keep the airway open by preventing upper airway collapse.

Interventions

Mandibular Advancement Device

MADs are custom-fitted oral appliances designed to reposition the mandible (lower jaw) forward during sleep, which helps to keep the airway open by preventing upper airway collapse.

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Adults ≥ 18 years of age
• Patients with a diagnosis of OSA
• Patients with an apnea-hypopnea index (AHI) of 5 until 30 events per hour
• Patients initially treated with MAD

Exclusion Criteria

• Patients under 18 years of age
• Patients without a diagnosis of mild to moderate OSA
• Patients undergoing other treatments for OSA
• Patients previously undergone MAD treatment (this also includes over the counter boil and bite MADs)
• Patients diagnosed with central sleep apnea
• Patients undergoing orthodontic treatment (e.g. braces)
• Pregnant patients
• Patients with craniofacial anomalies or syndromes (e.g., Treacher-Collins, Down, Pierre-Robin, Marfan),
• Patients undergoing cancer treatment with chemotherapy or radiation
• Patients with a history of maxillofacial surgery
• Patients with select dental conditions like severe periodontal disease, temporomandibular joint disease, insufficient dentition to support appliance retention in the mouth
• Patients who use bone resorption inhibitors (such as bisphosphonates, calcitonin, SERMs) or the prolonged use, ≥ 6 months of corticosteroids

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Academic Centre for Dentistry in Amsterdam

OTHER

Sponsor Role: collaborator

Amsterdam UMC, location VUmc

OTHER

Sponsor Role: lead

Responsible Party

Jan de lange

Prinicipal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

J. de Lange, Prof. Dr.

Role: PRINCIPAL_INVESTIGATOR

Amsterdam University Medical Center

J.P.T.F. Ho, Dr.

Role: PRINCIPAL_INVESTIGATOR

Amsterdam University Medical Center

N.C.W. van der Kaaij, Dr.

Role: PRINCIPAL_INVESTIGATOR

Amsterdam University Medical Center

Central Contacts

A. el Khalfioui, Bsc

Role: CONTACT

a.elkhalfioui@amsterdamumc.nl

0684900593

References

de Ruiter MHT, Aarab G, de Vries N, Lobbezoo F, de Lange J. A stepwise titration protocol for oral appliance therapy in positional obstructive sleep apnea patients: proof of concept. Sleep Breath. 2020 Sep;24(3):1229-1236. doi: 10.1007/s11325-020-02045-w. Epub 2020 Mar 11.

Reference Type: BACKGROUND

PMID: 32162278 (View on PubMed)

Related Links

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7426292/

Related Info

Other Identifiers

202401

Identifier Type: -

Identifier Source: org_study_id