Influence of oral appliances for mandibular advancement on occlusal function

Watanabe, Genki; Ueda, Hiroshi; Horihata, Atushi; Koh, Myongsun; Tanne, Kazuo

doi:10.1007/s12548-012-0044-9

Cited by 2 publications

(3 citation statements)

References 36 publications

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“…These results agree with those obtained by Chen et al [49]. Overall, it was concluded that the sagittal tooth relationship between the maxillary and mandibular anterior teeth saw a reduction with the continuous use of MADs, irrespective of the design and materials used [18,24,25,31,34,49,50]. In recent systematic reviews, MADs for OSA may reportedly tilt the mandibular incisors to 1.54 ± 0.16°labially, reduce the OJ by 0.89 ± 0.04 mm, reduce the OB by 0.68 ± 0.04 mm, and rotate the mandible downward [13].…”

Section: Dental Cast Assessmentsupporting

confidence: 91%

“…The short-term continuous use of an MAD has been reported to lead to temporomandibular joint discomfort upon waking up, excessive salivation, intraoral and lip dryness, and improper tooth contact upon removing the MAD [23][24][25]. However, patients find that these symptoms improve throughout the day, and the level of discomfort is reportedly minimal [17,18,[26][27][28][29][30]. On the contrary, long-term dental changes or changes in occlusion are harder for the patients to notice [16]; these include OJ and OB reduction, a forward shift of the mandibular molars, and increased maximal opening [24][25][26][31][32][33][34].…”

Section: Cephalometric Analysismentioning

confidence: 99%

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Dental and Occlusal Changes during Mandibular Advancement Device Therapy in Japanese Patients with Obstructive Sleep Apnea: Four Years Follow-Up

Ishida

Kunimatsu

Medina

et al. 2022

JCM

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Dentoskeletal changes caused by the long-term use of mandibular advancement devices (MADs) for obstructive sleep apnea (OSA) have rarely been investigated in Japan. We assessed the long-term dentofacial morphological changes in 15 Japanese patients with OSA who used two-piece MADs for an average of 4 years. Lateral cephalography analyses were performed initially and 4 years later (T1). The dental assessment included overjet, overbite, upper anterior facial height, lower anterior facial height (LAFH), total anterior facial height (TAFH), and anterior facial height ratio. Dental casts were digitized and analyzed using a 3D scanner. Changes in the apnea hypopnea index (AHI) and other sleep-assessment indices were assessed using polysomnography and out-of-center sleep testing. Radiography revealed lingual inclination of the maxillary central incisors, labial inclination of the mandibular central incisors, clockwise rotation of the mandible, and an increase in the TAFH and LAFH at T1. In the dental cast analysis, the diameter width and palatal depth tended to decrease and increase, respectively. There was a significant decrease in the AHI and other sleep assessment indices after using the MADs for approximately 4 years. However, these findings do not provide a strong basis and should be interpreted cautiously. Future studies should have a larger sample size and should further investigate the long-term occlusal and dental changes caused by the original MADs in Japanese patients with OSA.

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Section: Dental Cast Assessmentsupporting

confidence: 91%

Section: Cephalometric Analysismentioning

confidence: 99%

Dental and Occlusal Changes during Mandibular Advancement Device Therapy in Japanese Patients with Obstructive Sleep Apnea: Four Years Follow-Up

Ishida

Kunimatsu

Medina

et al. 2022

JCM

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“…The net amount of force that is required for tooth movement mainly depends on the root surface [ 22 ]. Interestingly, in our previous study, the mobility of the lower incisors immediately after nocturnal use of OA was the highest among all teeth, followed by the upper incisors [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

Influence of Oral Appliances for Mandibular Advancement on Dentitions Using a Strain Gauge Analysis: A Pilot Study

et al. 2017

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Introduction. This study aimed to evaluate the influence of oral appliances (OAs) on dentition using a strain gauge analysis. Materials/Methods. Eight volunteers, who were mild snorers, participated in this study. OAs were individually constructed, and advancement was defined as two-thirds of the maximum mandibular advancement. Strain gauges were mounted on the right first molar and central incisor of both the upper and lower arches. After OA use, two measurement sessions (short- and long-term) were performed. Results. Compressive strain on the labial surface was significantly larger than the stretching strain on the lingual surface on U1. On L1, the stretching strain on the labial surface was significantly larger than the compressive strain on the lingual surface. Comparing the upper and lower teeth, the stretching strain was significantly greater on L1 than on U1 in both test sessions. Moreover, the stretching strain was significantly larger on U6 than on L6. Conclusion. OA side effects, such as forcing on the incisors, might be repeated every night. In this way, permanent occlusal changes, such as labial tipping of L1, may occur, followed by lingual tipping of U1 and buccal and lingual movements of the U6 and L6, respectively.

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Influence of oral appliances for mandibular advancement on occlusal function

Cited by 2 publications

References 36 publications

Dental and Occlusal Changes during Mandibular Advancement Device Therapy in Japanese Patients with Obstructive Sleep Apnea: Four Years Follow-Up

Dental and Occlusal Changes during Mandibular Advancement Device Therapy in Japanese Patients with Obstructive Sleep Apnea: Four Years Follow-Up

Influence of Oral Appliances for Mandibular Advancement on Dentitions Using a Strain Gauge Analysis: A Pilot Study

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