Influence of mandibular protruding device on airway passages and dentofacial characteristics in obstructive sleep apnea and snoring

Fransson, Anette M.C.; Tegelberg, Åke; Svenson, B; Lennartsson, Bertil; Isacsson, Göran

doi:10.1067/mod.2002.125993

Cited by 72 publications

(73 citation statements)

References 19 publications

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“…The increase in anterior OCA might be caused by the lingual tipping of upper incisors and the labial movement of lower incisors, as described in previous studies. 11,12,26,27 Canines may be unique among the anterior teeth because they are located at the corner of the dental arch and are thought to be sensitive to lateral and/or anteroposterior jaw positions. 28 Slight variations in bite could considerably influence the OCA in the canine area, and a lateral open-bite may be attributed to canine contacts.…”

Section: Discussionmentioning

confidence: 99%

Changes in Occlusal Contact Area during Oral Appliance Therapy Assessed on Study Models

Ueda

Almeida

Lowe

et al. 2008

The Angle Orthodontist

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Objective: To test the hypothesis that long-term use of an oral appliance (OA) does not cause changes in the occlusal contact area (OCA). Materials and Methods: Baseline and follow-up treatment study models were obtained for 45 patients with obstructive sleep apnea who had been using an OA for 4 or more days/week for more than 5 years. Study models in centric occlusion, with an inserted pressure-sensitive sheet, were loaded in compression. An image scanner was used to evaluate OCA. Results: A significant change in total OCA was identified in 39 patients (86.7%): a decrease in 26 (66.7%) and an increase in 13 (33.3%) patients. Regional changes Ͼ5% were observed in Ͼ90% of patients in each of the three regions. In the molar and premolar regions, 24 (53.3%) and 27 (60.0%) of the patients showed an OCA decrease, while only 16 (35.6%) and 15 (33.3%) showed an increase. Conversely, for the anterior region, more increases (24 patients-53.3%) than decreases were identified. Conclusion: The hypothesis is rejected. Long-term OA therapy resulted in dramatic changes of occlusion, suggesting that monitoring of occlusal changes is required.

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Section: Discussionmentioning

confidence: 99%

Changes in Occlusal Contact Area during Oral Appliance Therapy Assessed on Study Models

Ueda

Almeida

Lowe

et al. 2008

The Angle Orthodontist

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“…[15][16][17][18] Others studied the effects of different skeletal patterns on pharyngeal size. [19][20][21][22][23] Pharyngeal size is very important for all subjects and especially for the patient with sleep apnea.…”

Section: Introductionmentioning

confidence: 99%

Maxillary Protraction Appliance Effect on the Size of the Upper Airway Passage

Oktay

Ulukaya

2008

The Angle Orthodontist

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Objective: To test the hypothesis that maxillary protraction appliances (MPA) have no effect on the size of the upper airway passage and craniofacial structures in adolescent patients. Materials and Methods: Twenty patients (5 male and 15 female; mean age 11.5 years) with skeletal Class III malocclusion were included in this study. The records of all patients who had maxillary protraction treatment and had lateral head radiographs taken before and after their protraction treatments were obtained from the files of treated cases. Treatment changes were determined by means of linear, angular, and area measurements. Data were analyzed statistically by means of paired t-test and correlation analysis. Results: Significant increases were observed in the width and area of the pharyngeal airway. Significant increases also occurred in the sagittal growth of the maxilla, while a clockwise rotation and inhibition of sagittal growth were observed in the mandible. Conclusions: The hypothesis was rejected. The size of the upper airway can be increased by means of MPA application.

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“…In similar studies, Fransson et al [20] evaluated the influence of a mandibular protruding device (MPD) after 2 years of nocturnal use on the upper airway and its surrounding structures and found an increase in the pharyngeal airway resulting from the mandibular protrusion. Ackam et al [21] studied the relationship between the soft palate and the nasopharyngeal airway in different mandibular growth rotation and found a decrease in the upper airway dimensions of the patient having posterior mandibular rotation.…”

Section: Discussionmentioning

confidence: 99%

The Effects of Maxillary Protrusion on Pharyngeal Airway Dimensions

Jamilian¹,

Showkatbakhsh²,

Borna³

et al. 2014

J Dent Probl Solut

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Aim:The relationship between position of the maxillary structures caused by maxillary protraction therapy and airway dimensions has not been investigated as comprehensively as the skeletal changes. This study was conducted to evaluate the effects of treatment with a maxillary protraction appliance on upper airway dimensions. Material and Methods:Twenty Five patients including 13 females, 12 males with the mean age of 10.66 years (range, +0.7, -0.8 years) with skeletal Cl III malocclusion due to maxillary deficiency were selected in this study. All of the patients were treated by using a maxillary protraction (Tongue Appliance) as the only treatment appliance. Lateral cephalograms were taken before and after treatment. Data were analyzed statistically by means of paired T-test. Results:No significant increase in the width of upper and middle horizontal airway dimension was seen. Significant increases were observed in the length of vertical airway dimension (P<0.001). Conclusion:These results demonstrated that Tongue Appliance doesn't affect sagittal airway dimensions but it increases vertical dimensions in the short time.Therefore, the purpose of this study was to examine the effects of an intra-oral maxillary protraction appliance named tongue appliance on the dimensions of the upper airway in patients with Cl III malocclusion and maxillary deficiency. Materials and MethodsThe study was done according to the ethical principles of the Declaration of Helsinki.In this study 25 patients (13 females, 12 males) with mean age of 10.6 (SD 0.7) years who were treated with tongue appliance were selected. All samples had following inclusion criteria.Presence of a skeletal Cl III malocclusion due to maxillary deficiency with SNA≤78. SNB ≤80. ANB ≤0 Edge to edge incisor relationship or anterior crossbite, flat or concave facial profile.The patients were treated with tongue appliance alone.4-No other congenital anomalies, endocrine, nasopharyngeal disorders, tonsillitis, adenitis, previous orthopedic, orthodontic treatment, and rhinoplasty were present.Tongue appliance [10] used for the treatment of the samples was constructed by Adams clasps for first upper molars and c clasps in the anterior teeth in order to increase the retention. Three to five separate spurs incorporated in the palatal between canine to canine areas. These spurs were as long as to cage the tongue and they were adjusted in clinic to avoid traumatizing the floor of the mouth. This appliance was used for approximately 22 hours a day. The average treatment IntroductionThe skeletal and dentoalveolar effects of orthopedic appliances in patients with Class III (Cl III) malocclusions and maxillary deficiency have been well documented in literature. Numerous appliance designs such as endosseous implants [1], ankylozed teeth [2], surgically assisted orthopedic protraction [3], distraction osteogenesis [4,5], Hybrid Hyrax appliance [6], reverse chin cup [7,8], face mask [9], tongue appliance [10][11][12], and tongue plate [13] have been used for treatment ...

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Influence of mandibular protruding device on airway passages and dentofacial characteristics in obstructive sleep apnea and snoring

Cited by 72 publications

References 19 publications

Changes in Occlusal Contact Area during Oral Appliance Therapy Assessed on Study Models

Changes in Occlusal Contact Area during Oral Appliance Therapy Assessed on Study Models

Maxillary Protraction Appliance Effect on the Size of the Upper Airway Passage

The Effects of Maxillary Protrusion on Pharyngeal Airway Dimensions

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