The Angle orthodontist最新文献_第5页

Anna Hopkins Angle: a remembrance. 安娜-霍普金斯-安格尔：回忆。

The Angle orthodontist Pub Date : 2024-04-19 DOI: 10.2319/1945-7103-94.3.366

James J. Zahrowski

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Letters From Our Readers. 读者来信

The Angle orthodontist Pub Date : 2024-04-19 DOI: 10.2319/1945-7103-94.3.370

Philip Benson

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Letters From Our Readers. 读者来信

The Angle orthodontist Pub Date : 2024-04-19 DOI: 10.2319/1945-7103-94.3.371

Karim Gamal Elias, Gautham Sivamurthy, David R Bearn

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Wilson curve modification in permanent dentition: a retrospective comparison between clear aligners and continuous archwire treatment 恒牙的威尔逊曲线修正：透明矫治器与连续弓丝治疗的回顾性比较

The Angle orthodontist Pub Date : 2024-04-03 DOI: 10.2319/101123-691.1

R. Lione, F. C. De Razza, F. Gazzani, P. Cozza, C. Pavoni

{"title":"Wilson curve modification in permanent dentition: a retrospective comparison between clear aligners and continuous archwire treatment","authors":"R. Lione, F. C. De Razza, F. Gazzani, P. Cozza, C. Pavoni","doi":"10.2319/101123-691.1","DOIUrl":"https://doi.org/10.2319/101123-691.1","url":null,"abstract":"\u0000 \u0000 \u0000 To evaluate leveling of the Curve of Wilson (COW) by two different treatment appliances (clear aligners [CA] and continuous archwire fixed appliances [FA]) in a permanent dentition sample of patients.\u0000 \u0000 \u0000 \u0000 Digital casts of 40 patients (CA group = 20 patients; FA group = 20 patients) were collected. Angular values for COW, right and left vertical height difference of lower first molars, and linear distance between lower teeth and the WALA ridge were analyzed for pre- (T1), posttreatment (T2) and on final virtual (ClinCheck) models (T2-CC) of the CA group. An unpaired t-test was used to evaluate significant intergroup differences (P < .05), while a paired t-test was used for posttreatment CA intragroup comparison.\u0000 \u0000 \u0000 \u0000 FA group showed better control of second molar crown positions compared to CA group (47-WALA = −0.2 ± 0.1 mm, 37-WALA = −0.6 ± 0.3 mm). No significant difference was detected for linear distance of lower first molars and the WALA ridge or for vertical height difference. CA group showed a greater reduction of distance between lower premolars and the WALA ridge (mean difference: –0.5 mm for both 45-WALA and 35-WALA; mean difference: −0.5 mm for 44-WALA, −0.6 mm for 34-WALA). Predictability for the CA group was high for every measurement (87% Right COW, 89% Left COW, 88% 46 Vertical Diff, 87% 36 Vertical Diff).\u0000 \u0000 \u0000 \u0000 Clear aligner and continuous archwire mechanics were effective in leveling COW. FA was more effective in changing crown position of lower second molars with respect to the WALA ridge, while CA provided a greater distance reduction between lower premolars and WALA ridges compared to FA.\u0000","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"950 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140748989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Evaluation of nasal septal deviation and maxillary bone and nasal airway dimensions and volumes using cone-beam computed tomography in patients with unilateral palatal canine displacement: a retrospective study 使用锥形束计算机断层扫描评估单侧腭犬牙移位患者的鼻中隔偏曲、上颌骨和鼻腔气道尺寸和体积：一项回顾性研究

The Angle orthodontist Pub Date : 2024-03-11 DOI: 10.2319/110523-736.1

Safa A. Azim Osman, Elham Abu Alhaija, Ahed M. Alwahadni, Emad Al Maaitah, Saba O. Daher, Hasan O. Daher, Hamza AlTal

{"title":"Evaluation of nasal septal deviation and maxillary bone and nasal airway dimensions and volumes using cone-beam computed tomography in patients with unilateral palatal canine displacement: a retrospective study","authors":"Safa A. Azim Osman, Elham Abu Alhaija, Ahed M. Alwahadni, Emad Al Maaitah, Saba O. Daher, Hasan O. Daher, Hamza AlTal","doi":"10.2319/110523-736.1","DOIUrl":"https://doi.org/10.2319/110523-736.1","url":null,"abstract":"\u0000 \u0000 \u0000 To detect any association between palatally displaced canine (PDC) and nasal septal deviation (NSD), palatal bone thickness and volume, and nasal airway dimensions and volume.\u0000 \u0000 \u0000 \u0000 A total of 92 patients were included and subdivided into two groups: group 1, unilateral PDCs (44 patients), and group 2, normally erupted canines (NDCs) (48 subjects). The following variables were measured using cone-beam computed tomography: presence and type of NSD, nasal width, inferior conchae, hard palate and nasal septum thickness, maxillary bone and nasal airway volumes.\u0000 \u0000 \u0000 \u0000 NSD was detected in 77% and 50% of PDC and NDC subjects, respectively. Within the PDC subjects, significant differences between the displaced and nondisplaced sides were detected. Palate thickness was increased in the canine region and reduced in the molar region. Compared with the control group, PDC subjects had reduced palate thickness and lower nasal airway volume. Two predictors were significant for predicting the odds of PDC occurrence: NSD and maxillary bone volume.\u0000 \u0000 \u0000 \u0000 NSD is more frequent in PDC subjects. PDC subjects have reduced palate thickness and decreased nasal airway volume. In the presence of NSD, the odds of developing PDC increase by 3.35 times, and for each one-unit increase in the maxillary bone volume, the odds of developing PDC decrease by 20%.\u0000","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"12 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140252446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Does facial growth pattern affect the perception of lower facial asymmetry? 面部生长模式是否会影响对面部下部不对称的感知？

The Angle orthodontist Pub Date : 2024-03-11 DOI: 10.2319/092823-656.1

Ece Basal, Ismail Cevik, Yasemin Bahar Acar, Fulya Özdemir

{"title":"Does facial growth pattern affect the perception of lower facial asymmetry?","authors":"Ece Basal, Ismail Cevik, Yasemin Bahar Acar, Fulya Özdemir","doi":"10.2319/092823-656.1","DOIUrl":"https://doi.org/10.2319/092823-656.1","url":null,"abstract":"\u0000 \u0000 \u0000 To investigate the influence of vertical facial type on esthetic perception of lower facial asymmetry as evaluated by orthodontists, dentists, and laypeople.\u0000 \u0000 \u0000 \u0000 Three adult females were selected with normal growth patterns (NGP), vertical growth patterns (VGP), and horizontal growth patterns (HGP). Frontal photographs were made symmetric and digitally altered, rotating the lower facial third clockwise, ranging from 0° to 6° in 1° increments. A web-based survey was designed with 24 images (eight images for each model) in random order. Each image was rated using a scale ranging from 0 (unattractive) to 10 (the most attractive) by 75 orthodontists, 73 dentists, and 78 laypeople. Kruskal-Wallis test was used to determine whether differences among groups were significant. Pairwise comparisons were made with Mann-Whitney U test. The significance level was set at P = .05.\u0000 \u0000 \u0000 \u0000 In NGP, orthodontists and dentists could recognize slighter deviations (2°), while deviations in VGP and HGP under 3° were not recognized by all groups. Severe deviations (≥4°) were distinguished better in HGP by orthodontists and laypeople. In VGP and NGP, there was no significant difference over 4°.\u0000 \u0000 \u0000 \u0000 Growth pattern has a significant influence on perception of lower facial asymmetry. Less severe asymmetry can be detected better in NGP. In severe degrees, increments of asymmetry can be perceived more in HGP by orthodontists and laypeople.\u0000","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140253275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Comparison of labio-palatal incisor movement between two wear protocols: a retrospective cohort study. 两种佩戴方案对唇腭切牙运动的比较：一项回顾性队列研究。

The Angle orthodontist Pub Date : 2024-03-01 DOI: 10.2319/063023-458.1

Max Wei, Tony Weir, Brett Kerr, Elissa Freer

{"title":"Comparison of labio-palatal incisor movement between two wear protocols: a retrospective cohort study.","authors":"Max Wei, Tony Weir, Brett Kerr, Elissa Freer","doi":"10.2319/063023-458.1","DOIUrl":"10.2319/063023-458.1","url":null,"abstract":"Objectives: To investigate the accuracy of the Invisalign appliance in achieving predicted angular tooth movement of the maxillary central incisors, to locate the center of rotation in a labio-palatal direction, and to investigate any difference between 1-weekly and 2-weekly wear protocols.Materials and methods: This study involved a retrospective sample of two groups of 46 Class I adult subjects treated non-extraction with different protocols of 1-weekly and 2-weekly wear. The pretreatment, predicted outcome and achieved outcome digital models were superimposed and measured using metrology software. Angular and center-of-rotation measurements in the sagittal plane for the maxillary right central incisor were analyzed.Results: There was a statistically significant difference between predicted and achieved angular measurements (P < .005) for labial tooth movements regardless of wear protocol. For palatal movements, no statistically significant difference was observed (P > .05). A small amount of overexpression was observed in some cases. Regarding crown and root control, uncontrolled tipping was the most predictable. No statistically significant difference was found between predicted and achieved center of rotation, but the confidence interval was wide. No statistically significant difference (P > .05) was found between the two wear protocols for the parameters measured.Conclusions: For maxillary central incisors, labial angular movements were not as accurate as palatal movements. Overcorrection could be recommended with careful clinical monitoring due to the possibility of overexpression. Control of root movements may be unpredictable, and further research is required to draw stronger conclusions. For the parameters measured in this clinical sample, there was no difference between the two wear protocols.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"151-158"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10893922/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71416439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predictive factors of therapeutic response according to craniofacial skeletal biotype in patients with sleep apnea syndrome using mandibular advancement devices: a pilot study. 根据颅面骨骼生物型预测下颌前移装置治疗睡眠呼吸暂停综合征患者疗效的因素：一项初步研究。

The Angle orthodontist Pub Date : 2024-03-01 DOI: 10.2319/092822-670.1

Rafael Ecija Navarro, Berşan Karadede, Beyza Karadede Ünal, Domingo Martin Salvador

{"title":"Predictive factors of therapeutic response according to craniofacial skeletal biotype in patients with sleep apnea syndrome using mandibular advancement devices: a pilot study.","authors":"Rafael Ecija Navarro, Berşan Karadede, Beyza Karadede Ünal, Domingo Martin Salvador","doi":"10.2319/092822-670.1","DOIUrl":"10.2319/092822-670.1","url":null,"abstract":"Objectives: To evaluate the influence of facial biotype in the therapeutic effect of mandibular advancement devices (MADs) according to polysomnographic records in patients diagnosed with sleep apnea-hypopnea syndrome (SAHS).Materials and methods: A total of 46 patients were recruited. Patients were classified according to facial biotype (mesofacial, brachyfacial, or dolichofacial). The quantitative variables were described as the arithmetic mean and standard deviation or the median and interquartile range. Hypothesis tests used were Pearson's chi-square, paired-sample Student's t- test, the Wilcoxon test, one-way analysis of variance, Kruskal-Wallis test, and Mann-Whitney U-test. P < .05 was considered statistically significant.Results: A total of 46 patients were categorized into three facial biotype subgroups with no significant differences among them in age, body mass index, neck circumference, and sex. The respiratory disturbance index (RDI) results were as follows: brachyfacial patients had a reduction to 15 events/h (P < .001), the mesofacial patients had a reduction to 14 events/h (P < .001), and the dolichofacial patients did not show a significant reduction. The oxygen desaturation index (ODI) results were as follows: brachyfacial patients had a reduction in ODI episodes to 45 episodes/h (P = .001), mesofacial patients had a reduction to 18 episodes/h (P = .001). In the brachyfacial group, the number of awakenings with MAD therapy was reduced to 23 events/h (P = .003), while, in the mesofacial group, it was reduced to 37 episodes/h (P = .012).Conclusions: The facial biotype influences the effectiveness of MAD therapy and is considered a good predictive factor.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"216-223"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10893917/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41160130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Early-stage periodontal ligament compression predicts orthodontically induced root resorption in rats. 早期牙周韧带压迫预测正畸诱导的大鼠牙根吸收。

The Angle orthodontist Pub Date : 2024-03-01 DOI: 10.2319/040223-233.1

Takuya Nakamura, Yuka Hotokezaka, Carmen Karadeniz, Hitoshi Hotokezaka, Yuika Ueda-Ichinose, Kie Nishioka-Sakamoto, Noriaki Yoshida

{"title":"Early-stage periodontal ligament compression predicts orthodontically induced root resorption in rats.","authors":"Takuya Nakamura, Yuka Hotokezaka, Carmen Karadeniz, Hitoshi Hotokezaka, Yuika Ueda-Ichinose, Kie Nishioka-Sakamoto, Noriaki Yoshida","doi":"10.2319/040223-233.1","DOIUrl":"10.2319/040223-233.1","url":null,"abstract":"Objectives: To determine the effect of orthodontic pressure on periodontal ligament (PDL) compression in rats and assess correlation between PDL compression and orthodontically induced root resorption (OIRR).Materials and methods: Eight female Wistar rats aged 10 weeks underwent surgery to place 2 mini-screws at the center of the palatal plate. 25 cN coil springs connecting the maxillary first molars and mini-screws were applied bilaterally to generate mesial force. Maxillary first molars were assigned to undergo either bodily or tipping movements. Micro-computed tomography (μCT) scans were taken on days 0, 3, 7, and 14, and histological sections were taken on day 14. OIRR was measured from histological sections, and the corresponding PDL compression ratio was quantified using μCT images.Results: The PDL was compressed by approximately 76% in tipping movement and 55% in bodily movement after 3 days, and by approximately 47% in bodily and tipping movements after 7 days of orthodontic force application. The extent of OIRR in tipping movement was significantly greater than that in bodily movement. A strong positive correlation between OIRR and PDL compression ratio was observed on day 3; however, no correlation was observed on day 7.Conclusions: A strong correlation between PDL compression ratio and OIRR was observed at an early stage after the application of orthodontic force regardless of the tooth movement type (bodily or tipping), implying the importance of early stage PDL compression in the induction of OIRR.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"240-246"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10893921/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"107593183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of posttreatment stability after total mandibular arch distalization with mini-implants and mandibular setback surgery. 下颌全弓远端植入微型植入体和下颌后移手术治疗后稳定性的比较。

The Angle orthodontist Pub Date : 2024-03-01 DOI: 10.2319/062723-447.1

Yoon-Ah Kook, Tae-Hyun Choi, Jae Hyun Park, So-Hyun Kim, Nam-Ki Lee

{"title":"Comparison of posttreatment stability after total mandibular arch distalization with mini-implants and mandibular setback surgery.","authors":"Yoon-Ah Kook, Tae-Hyun Choi, Jae Hyun Park, So-Hyun Kim, Nam-Ki Lee","doi":"10.2319/062723-447.1","DOIUrl":"10.2319/062723-447.1","url":null,"abstract":"Objectives: To compare posttreatment stability in skeletal Class III patients between those treated by total mandibular arch distalization (TMAD) with buccal mini-implants and those by mandibular setback surgery (MSS).Materials and methods: The samples included 40 Class III adults, 20 treated by TMAD using buccal interradicular mini-implants and 20 treated with MSS. Lateral cephalograms were taken at pretreatment, posttreatment, and at least 1-year follow-up, and 24 variables were compared using statistical analysis.Results: Mandibular first molars moved distally 1.9 mm with intrusion of 1.1 mm after treatment in the TMAD group. The mandibular incisors moved distally by 2.3 mm. The MSS group exhibited a significant skeletal change of the mandible, whereas the TMAD group did not. During retention, there were no skeletal or dental changes other than 0.6 mm labial movement of the mandibular incisors (P < .05) in the MSS group. There was 1.4° of mesial tipping (P < .01) and 0.4 mm of mesial movement of the mandibular molars and 1.9° of labial tipping (P < .001) and 0.8 mm of mesial movement of the mandibular incisors in the TMAD group. These dental changes were not significantly different between the two groups.Conclusions: The TMAD group showed a slightly decreased overjet with labial tipping of the mandibular incisors and mesial tipping of the first molars during retention. Posttreatment stability of the mandibular dentition was not significantly different between the groups. It can be useful to plan camouflage treatment by TMAD with mini-implants in mild-to-moderate Class III patients.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":"159-167"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10893925/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139405738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0