Since April 2004, the Asahi University Medical and Dental Center (hereinafter referred to as our center) has been providing oral appliances (hereinafter referred to as OA) to treat patients diagnosed with obstructive ...Since April 2004, the Asahi University Medical and Dental Center (hereinafter referred to as our center) has been providing oral appliances (hereinafter referred to as OA) to treat patients diagnosed with obstructive sleep apnea. The effects of using the OA and progress of 71 patients who received treatment at our center by wearing OA from March 2005 to the end of March 2016 were examined through questionnaires sent by physical mail. In 21 of 24 patients who underwent polysomnography after wearing OA, the apnea-hypopnea index (hereinafter referred to as AHI) significantly decreased after wearing OA (9.44 ± 10.37) compared to that before wearing OA (24.02 ± 13.57) (p = 8.7 × 10<sup>-8</sup>). The results showed that for patients who continuously use OA, it is necessary to have sound sleep/sleep soundly;further, the patients experienced a decrease in snoring when wearing OA, with only a few side effects on the temporomandibular joints and teeth. In addition, the closer the distance from the plane of the lower margin of the mandible to the hyoid bone after wearing OA, the more likely it was for the AHI to decrease, which suggests that wearing OA contributes to the prediction of therapeutic effects.展开更多
Objectives: The aim of this study was to identify independent prognostic predictors of the efficacy of oral appliance (OA) therapy for obstructive sleep apnea syndrome (OSAS). Materials and methods: The subjects consi...Objectives: The aim of this study was to identify independent prognostic predictors of the efficacy of oral appliance (OA) therapy for obstructive sleep apnea syndrome (OSAS). Materials and methods: The subjects consisted of 89 patients (77 males and 12 females) in whom OSAS had been treated with an OA. The mean age of the subjects was 52.4 years (range: 20 to 78 years) and mean body mass index (BMI) was 23.9 kg/m2 (range: 17.3 to 32.2 kg/m2). Lateral cephalograms were taken and 15 angle, 15 distance and 5 area measurements were calculated by means of a computerized program. Overnight polysomnography (PSG) was performed before treatment and several months after titration of OA therapy. OA therapy was considered effective if the apnea-hypopnea index several months after titration was under 15 events/h and was reduced to at least 50% of that before treatment. The examined data such as patient age, sex, BMI, data from cephalometric analyses, Epworth sleepiness scale, and data for pretreatment PSG were analyzed statistically, and multivariate logistic regression analysis was performed to clarify predictive variables for treatment outcome. Results: LFH (OR = 0.350;p = 0.035) and McN-A (OR = 0.276;p = 0.057) were selected as independent predictors from the explanatory variables. The predictive accuracy of the calculated logistic regression model was 74.2%. Conclusion: This results show that OA therapy for OSAS is more effective in patients with large anteroposterior diameter of the maxilla and large lower facial height.展开更多
Orthodontic treatment offers great advantages in improving facial and smile aesthetics, self-confidence and the function of the stomatognathic apparatus. The pursuit of these advantages makes use of orthodontic applia...Orthodontic treatment offers great advantages in improving facial and smile aesthetics, self-confidence and the function of the stomatognathic apparatus. The pursuit of these advantages makes use of orthodontic appliances that could be fixed or removable. However, it’s worth stating that these appliances interfere with tooth brushing, making it more difficult to brush teeth effectively. Orthodontics appliances therefore promote the accumulation of dental plaque, which results in both quantitative and qualitative changes in the oral microbiota, hence, exposing patients to several adverse effects such as White spot lesions, dental caries, periodontal pathologies and halitosis. For this reason, oral assessment of patients before, during and after treatment is necessary as well as oral hygiene instructions and motivation. Orthodontists therefore, should educate patients on oral and periodontal hygiene in order to control dental and periodontal complications. Prescriptions of plaque control materials adapted to each patient are done in order to optimize the final result and minimize unwanted complications.展开更多
Objective: The aim of this article is to provide a detailed description for obstructive sleep apnea regarding its signs and symptoms, the way it is diagnosed, the risk factors, management, the role of dentists and ora...Objective: The aim of this article is to provide a detailed description for obstructive sleep apnea regarding its signs and symptoms, the way it is diagnosed, the risk factors, management, the role of dentists and oral appliances in treatment and consequences of untreated condition. Material and Method: Electronic searching was done in PubMed, Medline, EMBASE and CENTRAL databases. Inclusion criteria were: dental, oral and maxillofacial oriented articles. Exclusion criteria: cardiac, obesity and non dental oriented articles were excluded. Result: 59 articles meet the criteria. Conclusion: Obstructive sleep apnea (OSA) is a potentially life threatening disorder characterized by repeated collapse of the upper airway during sleep, with periodic cessation of breathing for more than ten seconds. The frequency of obstructive sleep apnea has been found to increase with age;ranging from two percent among children to two and half percent - six percent among adolescents. Overnight polysomnographic test at specialized sleep clinics remains the gold standard for diagnosing obstructive sleep apnea disorder. Management of this condition can be performed via surgical and non surgical methods. Continuous positive airway pressure represents the first line of treatment for most patients with obstructive sleep apnea.展开更多
BACKGROUND Mandibular advancement devices(MADs)are used to treat mild to moderate obstructive sleep apnea(OSA),but there is a risk that the underlying condition can worsen in the long-term.Therefore,this case report i...BACKGROUND Mandibular advancement devices(MADs)are used to treat mild to moderate obstructive sleep apnea(OSA),but there is a risk that the underlying condition can worsen in the long-term.Therefore,this case report is based on biomimetic oral appliance therapy as an alternative to MADs,which was found to be beneficial in the treatment of a case with severe OSA.CASE SUMMARY An overnight sleep study was undertaken in a 50-year-old male with excessive daytime sleepiness that lead to a diagnosis of severe OSA as the apnea-hypopnea index(AHI)was found to be 32.8/h.Since the patient was unable to comply with continuous positive airway pressure therapy and declined surgical intervention,treatment with a MAD was initiated.Approximately 10 years later,another sleep study was performed with no MAD in the mouth,which revealed an AHI of 67.9/h.In view of the deterioration in sleep quality,the patient sought alternative treatment and elected on biomimetic oral appliance therapy,using a mandibular repositioning nighttime appliance(mRNA appliance®,Vivos Therapeutics,Inc.,United States).After 10 mo,another sleep study was performed with no device in the patient’s mouth,which revealed an AHI of 11.8/h,a mean oxygen saturation of 94%and a mean oxygen desaturation index of 5.3%while sleeping.Finiteelement analysis of the pre-and post-treatment study models of the upper jaw showed localized size increases of 15%-17%in the premolar regions and 15%-23%in the molar regions.CONCLUSION In adults with severe OSA that are unable to accept continuous positive airway pressure or surgical treatment,biomimetic oral appliance therapy may be preferable over MADs since biomimetic oral appliance therapy may be able to prevent worsening of sleep parameters by remodeling the nasomaxillary complex.Long-term follow up studies are required to verify these novel findings.展开更多
目的分析学龄前儿童错颌畸形的预防和早期矫治。方法选取2019年2月—2021年12月南京市江宁区妇幼保健计划生育服务中心收治的272例错颌畸形学龄前患儿,利用最新统计学软件生成的随机序列均分为对照组与研究组作平行对照研究,各136例。...目的分析学龄前儿童错颌畸形的预防和早期矫治。方法选取2019年2月—2021年12月南京市江宁区妇幼保健计划生育服务中心收治的272例错颌畸形学龄前患儿,利用最新统计学软件生成的随机序列均分为对照组与研究组作平行对照研究,各136例。对照组采用传统功能性矫治器矫治,研究组采用肌功能研究中心(myofunctional research center,MRC)矫治器矫治,对比两组口腔不良习惯改善效果、头影测量值及口腔功能。结果研究组总有效率(97.79%)较对照组(91.91%)更高,差异有统计学意义(χ^(2)=4.819,P<0.05);研究组矫治后头影测量各数据均优于对照组,差异有统计学意义(P<0.05);研究组矫治后舒适度、固定性、咀嚼功能及美观度评分较对照组更高,差异有统计学意义(P<0.05)。结论错颌畸形采用MRC矫治器治疗,可纠正患儿口腔不良习惯,促进口腔功能改善,并减小患儿上颌前突。展开更多
Objective:For the treatment of obstructive sleep apnea in adults,mandibular advancement devices(MADs)are often used.Since adults with a prognathic mandibular phenotype are at risk of developing an unfavorable facial p...Objective:For the treatment of obstructive sleep apnea in adults,mandibular advancement devices(MADs)are often used.Since adults with a prognathic mandibular phenotype are at risk of developing an unfavorable facial profile,midfacial development using biomimetic oral appliance therapy might provide a suitable alternative.However,the effect of this procedure on the maxillary air sinuses is unknown;therefore,changes in sinus pneumati-zation were investigated in this study.Methods:After obtaining informed consent,16 consecutive Korean adults with midfacial hypoplasia had 3D cone-beam(CB)CT scans taken,and biomimetic upper appliances(DNA appliance■,Vivos Therapeutics,Inc.,USA)were constructed.All subjects were instructed to wear the device 12-16 h/day.Each month,examination for the progress of midfacial development was recorded.Post-treatment,a follow-up 3D CBCT scan was undertaken with no device in the patienfs mouth.Pre-and post-treatment linear and volumetric measurements were obtained using appropriate software,and compared statistically using t-tests.Results:The mean age of the sample was 25.0 yrs±8.7.The mean treatment time was 15.5 mths±5.2.Post-treatment,the transpalatal bone width increased from 35.3 mm±3.0 to 38.5 mm±2.0(P<0.001);the maxillary air sinus volume on the left side increased from 18.8 cm^(3)±6.5 to 20.0 cm^(3)±6.0(P<0.05),and from 18.5 cm^(3)±5.7 to 19.7 cm^(3)±5.8(P<0.05)on the right side.Conclusions:Biomimetic oral appliance therapy may be able to increase the maxillary air sinus volume in adults.In view of these preliminary findings,further studies on the effect of enhanced pneumatization on paranasal sinus function and sleep parameters are warranted.展开更多
文摘Since April 2004, the Asahi University Medical and Dental Center (hereinafter referred to as our center) has been providing oral appliances (hereinafter referred to as OA) to treat patients diagnosed with obstructive sleep apnea. The effects of using the OA and progress of 71 patients who received treatment at our center by wearing OA from March 2005 to the end of March 2016 were examined through questionnaires sent by physical mail. In 21 of 24 patients who underwent polysomnography after wearing OA, the apnea-hypopnea index (hereinafter referred to as AHI) significantly decreased after wearing OA (9.44 ± 10.37) compared to that before wearing OA (24.02 ± 13.57) (p = 8.7 × 10<sup>-8</sup>). The results showed that for patients who continuously use OA, it is necessary to have sound sleep/sleep soundly;further, the patients experienced a decrease in snoring when wearing OA, with only a few side effects on the temporomandibular joints and teeth. In addition, the closer the distance from the plane of the lower margin of the mandible to the hyoid bone after wearing OA, the more likely it was for the AHI to decrease, which suggests that wearing OA contributes to the prediction of therapeutic effects.
文摘Objectives: The aim of this study was to identify independent prognostic predictors of the efficacy of oral appliance (OA) therapy for obstructive sleep apnea syndrome (OSAS). Materials and methods: The subjects consisted of 89 patients (77 males and 12 females) in whom OSAS had been treated with an OA. The mean age of the subjects was 52.4 years (range: 20 to 78 years) and mean body mass index (BMI) was 23.9 kg/m2 (range: 17.3 to 32.2 kg/m2). Lateral cephalograms were taken and 15 angle, 15 distance and 5 area measurements were calculated by means of a computerized program. Overnight polysomnography (PSG) was performed before treatment and several months after titration of OA therapy. OA therapy was considered effective if the apnea-hypopnea index several months after titration was under 15 events/h and was reduced to at least 50% of that before treatment. The examined data such as patient age, sex, BMI, data from cephalometric analyses, Epworth sleepiness scale, and data for pretreatment PSG were analyzed statistically, and multivariate logistic regression analysis was performed to clarify predictive variables for treatment outcome. Results: LFH (OR = 0.350;p = 0.035) and McN-A (OR = 0.276;p = 0.057) were selected as independent predictors from the explanatory variables. The predictive accuracy of the calculated logistic regression model was 74.2%. Conclusion: This results show that OA therapy for OSAS is more effective in patients with large anteroposterior diameter of the maxilla and large lower facial height.
文摘Orthodontic treatment offers great advantages in improving facial and smile aesthetics, self-confidence and the function of the stomatognathic apparatus. The pursuit of these advantages makes use of orthodontic appliances that could be fixed or removable. However, it’s worth stating that these appliances interfere with tooth brushing, making it more difficult to brush teeth effectively. Orthodontics appliances therefore promote the accumulation of dental plaque, which results in both quantitative and qualitative changes in the oral microbiota, hence, exposing patients to several adverse effects such as White spot lesions, dental caries, periodontal pathologies and halitosis. For this reason, oral assessment of patients before, during and after treatment is necessary as well as oral hygiene instructions and motivation. Orthodontists therefore, should educate patients on oral and periodontal hygiene in order to control dental and periodontal complications. Prescriptions of plaque control materials adapted to each patient are done in order to optimize the final result and minimize unwanted complications.
文摘Objective: The aim of this article is to provide a detailed description for obstructive sleep apnea regarding its signs and symptoms, the way it is diagnosed, the risk factors, management, the role of dentists and oral appliances in treatment and consequences of untreated condition. Material and Method: Electronic searching was done in PubMed, Medline, EMBASE and CENTRAL databases. Inclusion criteria were: dental, oral and maxillofacial oriented articles. Exclusion criteria: cardiac, obesity and non dental oriented articles were excluded. Result: 59 articles meet the criteria. Conclusion: Obstructive sleep apnea (OSA) is a potentially life threatening disorder characterized by repeated collapse of the upper airway during sleep, with periodic cessation of breathing for more than ten seconds. The frequency of obstructive sleep apnea has been found to increase with age;ranging from two percent among children to two and half percent - six percent among adolescents. Overnight polysomnographic test at specialized sleep clinics remains the gold standard for diagnosing obstructive sleep apnea disorder. Management of this condition can be performed via surgical and non surgical methods. Continuous positive airway pressure represents the first line of treatment for most patients with obstructive sleep apnea.
文摘BACKGROUND Mandibular advancement devices(MADs)are used to treat mild to moderate obstructive sleep apnea(OSA),but there is a risk that the underlying condition can worsen in the long-term.Therefore,this case report is based on biomimetic oral appliance therapy as an alternative to MADs,which was found to be beneficial in the treatment of a case with severe OSA.CASE SUMMARY An overnight sleep study was undertaken in a 50-year-old male with excessive daytime sleepiness that lead to a diagnosis of severe OSA as the apnea-hypopnea index(AHI)was found to be 32.8/h.Since the patient was unable to comply with continuous positive airway pressure therapy and declined surgical intervention,treatment with a MAD was initiated.Approximately 10 years later,another sleep study was performed with no MAD in the mouth,which revealed an AHI of 67.9/h.In view of the deterioration in sleep quality,the patient sought alternative treatment and elected on biomimetic oral appliance therapy,using a mandibular repositioning nighttime appliance(mRNA appliance®,Vivos Therapeutics,Inc.,United States).After 10 mo,another sleep study was performed with no device in the patient’s mouth,which revealed an AHI of 11.8/h,a mean oxygen saturation of 94%and a mean oxygen desaturation index of 5.3%while sleeping.Finiteelement analysis of the pre-and post-treatment study models of the upper jaw showed localized size increases of 15%-17%in the premolar regions and 15%-23%in the molar regions.CONCLUSION In adults with severe OSA that are unable to accept continuous positive airway pressure or surgical treatment,biomimetic oral appliance therapy may be preferable over MADs since biomimetic oral appliance therapy may be able to prevent worsening of sleep parameters by remodeling the nasomaxillary complex.Long-term follow up studies are required to verify these novel findings.
文摘目的分析学龄前儿童错颌畸形的预防和早期矫治。方法选取2019年2月—2021年12月南京市江宁区妇幼保健计划生育服务中心收治的272例错颌畸形学龄前患儿,利用最新统计学软件生成的随机序列均分为对照组与研究组作平行对照研究,各136例。对照组采用传统功能性矫治器矫治,研究组采用肌功能研究中心(myofunctional research center,MRC)矫治器矫治,对比两组口腔不良习惯改善效果、头影测量值及口腔功能。结果研究组总有效率(97.79%)较对照组(91.91%)更高,差异有统计学意义(χ^(2)=4.819,P<0.05);研究组矫治后头影测量各数据均优于对照组,差异有统计学意义(P<0.05);研究组矫治后舒适度、固定性、咀嚼功能及美观度评分较对照组更高,差异有统计学意义(P<0.05)。结论错颌畸形采用MRC矫治器治疗,可纠正患儿口腔不良习惯,促进口腔功能改善,并减小患儿上颌前突。
文摘Objective:For the treatment of obstructive sleep apnea in adults,mandibular advancement devices(MADs)are often used.Since adults with a prognathic mandibular phenotype are at risk of developing an unfavorable facial profile,midfacial development using biomimetic oral appliance therapy might provide a suitable alternative.However,the effect of this procedure on the maxillary air sinuses is unknown;therefore,changes in sinus pneumati-zation were investigated in this study.Methods:After obtaining informed consent,16 consecutive Korean adults with midfacial hypoplasia had 3D cone-beam(CB)CT scans taken,and biomimetic upper appliances(DNA appliance■,Vivos Therapeutics,Inc.,USA)were constructed.All subjects were instructed to wear the device 12-16 h/day.Each month,examination for the progress of midfacial development was recorded.Post-treatment,a follow-up 3D CBCT scan was undertaken with no device in the patienfs mouth.Pre-and post-treatment linear and volumetric measurements were obtained using appropriate software,and compared statistically using t-tests.Results:The mean age of the sample was 25.0 yrs±8.7.The mean treatment time was 15.5 mths±5.2.Post-treatment,the transpalatal bone width increased from 35.3 mm±3.0 to 38.5 mm±2.0(P<0.001);the maxillary air sinus volume on the left side increased from 18.8 cm^(3)±6.5 to 20.0 cm^(3)±6.0(P<0.05),and from 18.5 cm^(3)±5.7 to 19.7 cm^(3)±5.8(P<0.05)on the right side.Conclusions:Biomimetic oral appliance therapy may be able to increase the maxillary air sinus volume in adults.In view of these preliminary findings,further studies on the effect of enhanced pneumatization on paranasal sinus function and sleep parameters are warranted.
