The Angle orthodontist最新文献_第7页

Evaluation of dentoalveolar changes following maxillary incisor intrusion with one vs two anterior miniscrews in subjects with gummy smile: a randomized clinical trial. 牙龈笑受试者使用一个与两个前迷你螺钉植入上颌切牙后牙槽骨变化的评估：随机临床试验。

The Angle orthodontist Pub Date : 2024-09-01 DOI: 10.2319/121323-825.1

Manikandan M, Surya Kanta Das, Ashish Kumar Barik, Subash Chandra Raj, Mitali Mishra, Sunil Kumar Rath, Sushila Sah

{"title":"Evaluation of dentoalveolar changes following maxillary incisor intrusion with one vs two anterior miniscrews in subjects with gummy smile: a randomized clinical trial.","authors":"Manikandan M, Surya Kanta Das, Ashish Kumar Barik, Subash Chandra Raj, Mitali Mishra, Sunil Kumar Rath, Sushila Sah","doi":"10.2319/121323-825.1","DOIUrl":"10.2319/121323-825.1","url":null,"abstract":"Objectives: To examine dentoalveolar changes following intrusion of maxillary incisors with one or two anterior miniscrews in subjects with gummy smile and deep bite.Materials and methods: Forty-three subjects were selected and divided into two groups: group I (22 subjects: 15 women, 7 men; mean age 30 ± 10 years) received one miniscrew between the upper central incisors, and group II (21 subjects: 16 women, 5 men; mean age 30 ± 10 years) received two miniscrews between the canines and lateral incisors. Dentoalveolar parameters, including amount of intrusion, root resorption, incisor inclination, alveolar bone thickness, and buccal alveolar crest height (cementoenamel junction to labial alveolar crest), were evaluated using cone-beam computed tomography scans obtained before and after intrusion. The intergroup comparison was analyzed using a paired t-test and unpaired t-test to determine significant changes within and between groups.Results: The amount of intrusion was significantly greater in group II than in group I (P < .05). No statistically significant differences were found between groups I and II for changes in incisor inclination, labial bone thickness, and buccal alveolar crest height (P > .05).Conclusions: Maxillary central and lateral incisor intrusion was significantly greater in subjects treated with two miniscrews. Root resorption of the maxillary central incisors was notably greater in subjects with one miniscrew, while maxillary lateral incisor resorption was greater in subjects treated with two miniscrews.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 5","pages":"522-531"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11363986/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127789","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

A skeletal Class III young adult with severe maxillary transverse deficiency treated with maxillary skeletal expander. 一名患有严重上颌骨横向缺损的 III 级骨骼发育不良的年轻成人，接受了上颌骨骨骼扩张器治疗。

The Angle orthodontist Pub Date : 2024-08-28 DOI: 10.2319/012724-71.1

Fengcong Wang, Ping Liu, Bo Ding

引用次数: 0

Class III correction and enhanced periodontal health with aligner treatment in a 53-year-old patient. 一名 53 岁的患者通过矫正器治疗获得了 III 级矫正，牙周健康状况也得到了改善。

The Angle orthodontist Pub Date : 2024-08-28 DOI: 10.2319/020524-91.1

Ibtehal Almagrami, Maryam Almaqrami, LingSu Zhu, Yiqiang Qiao

{"title":"Class III correction and enhanced periodontal health with aligner treatment in a 53-year-old patient.","authors":"Ibtehal Almagrami, Maryam Almaqrami, LingSu Zhu, Yiqiang Qiao","doi":"10.2319/020524-91.1","DOIUrl":"https://doi.org/10.2319/020524-91.1","url":null,"abstract":"In this case report, we describe the successful camouflage treatment of a 53-year-old female with dental and skeletal Class III malocclusion combined with anterior crossbite, gingival recession, and mobility of the lower incisors, using clear aligners. The treatment involved periodontal debridement followed by orthodontic treatment. The mandibular posterior teeth were distalized to correct the anterior crossbite and to establish Class I molar relationships. During treatment, the mandibular incisors were intruded, and the mandibular occlusal plane underwent a clockwise rotation due to slight extrusion of the maxillary buccal segments and distalization of the mandibular posterior teeth. Following treatment, all objectives were achieved, including resolution of the anterior crossbite, significant reduction of gingival recession and tooth mobility, and improved functional occlusion. The dental and skeletal Class III malocclusion was corrected, and the marginal alveolar bone dehiscence was significantly reduced. The results remained stable over a 3-year retention period, with enhanced molar intercuspation and gingival growth progression. This case adds to the evidence supporting the adaptability and effectiveness of clear aligners in treating orthodontic patients with compromised periodontium. The treatment outcomes support that orthodontic treatment using clear aligners, combined with periodontal monitoring, can assist in managing alveolar bone defects, gingival recession, and tooth mobility.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082953","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}

引用次数: 0

Self-perception and self-recognition of facial profiles in adolescents referred to orthodontic treatment 接受正畸治疗的青少年对面部轮廓的自我感知和自我认知

The Angle orthodontist Pub Date : 2024-07-23 DOI: 10.2319/030624-177.1

Tadeja Blagec, Katja Milatić, Matea Markusi, Luka Šimunović, S. Meštrović

{"title":"Self-perception and self-recognition of facial profiles in adolescents referred to orthodontic treatment","authors":"Tadeja Blagec, Katja Milatić, Matea Markusi, Luka Šimunović, S. Meštrović","doi":"10.2319/030624-177.1","DOIUrl":"https://doi.org/10.2319/030624-177.1","url":null,"abstract":"\u0000 \u0000 \u0000 To investigate self-recognition and self-perception among participants with straight, convex, and concave profiles.\u0000 \u0000 \u0000 \u0000 This cross-sectional study was conducted using a questionnaire with questions about demographic information, self-perception of the facial profile, satisfaction with profile esthetics, expectations about profile changes after completing orthodontic treatment, motivational factors, and self-recognition. For the self-recognition question, profiles of the respondents were blackened and inserted into the questionnaire. Participants were categorized into three groups: those exhibiting a convex, straight, and concave profile.\u0000 \u0000 \u0000 \u0000 There was no statistically significant difference between the straight, concave, and convex profile groups regarding self-recognition and self-perception. Participants showed greater ability in self-recognition than self-perception of their soft-tissue profile (P = .001). Females showed higher capability in self-perception than males (P = .001).\u0000 \u0000 \u0000 \u0000 Self-recognition and self-perception of the soft-tissue profile are not influenced by facial convexity.\u0000","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"132 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141811676","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}

引用次数: 0

Comparison of alveolar bone morphology after expansion with hybrid and conventional Hyrax expanders. 混合膨胀器和传统 Hyrax 膨胀器膨胀后牙槽骨形态的比较。

The Angle orthodontist Pub Date : 2024-07-01 DOI: 10.2319/092623-650.1

Ivan Silva, Felicia Miranda, José Carlos da Cunha Bastos, Daniela Garib

{"title":"Comparison of alveolar bone morphology after expansion with hybrid and conventional Hyrax expanders.","authors":"Ivan Silva, Felicia Miranda, José Carlos da Cunha Bastos, Daniela Garib","doi":"10.2319/092623-650.1","DOIUrl":"10.2319/092623-650.1","url":null,"abstract":"Objectives: To compare the buccal and palatal bone changes of maxillary posterior teeth produced by hybrid hyrax (HH) and conventional hyrax (CH) expanders in growing patients.Material and methods: A sample of 32 patients with posterior crossbites in the late mixed dentition was recruited and randomly allocated into two groups. Group HH was composed of 18 individuals with a mean age of 10.7 years (six female, 12 male) treated with a hybrid expander with two anterior parasagittal miniscrews. Group CH was composed of 14 individuals with a mean age of 11.4 years (six female, eight male) treated with a conventional Hyrax expander. Cone-beam computed tomography (CBCT) exams were obtained before expansion (T1) and after 11 months when the expander was removed (T2). Buccal and palatal bone plate thickness and height of maxillary posterior teeth were measured. Intergroup comparisons were performed using t or Mann-Whitney tests (P < .05).Results: The CH group showed greater decreases of the buccal bone plate height (mean change: 1.27 mm) at the maxillary first premolars compared to the HH group (mean change: 0.11 mm, P = .001). No intergroup difference was found for changes in the buccal and palatal bone thickness.Conclusions: Hybrid expanders showed a tendency to cause less negative impact on the buccal bone plate height of first premolars compared to conventional Hyrax expanders. However, the difference was not clinically significant. Both hybrid and conventional Hyrax expanders are safe for the alveolar bone morphology in the late mixed dentition.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 4","pages":"414-420"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210521/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127783","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

Evaluation of maxillary dimensional changes in the mixed dentition: clear aligners vs acrylic expanders. 评估混合牙列的上颌尺寸变化：透明矫治器与丙烯酸扩弓器。

The Angle orthodontist Pub Date : 2024-07-01 DOI: 10.2319/121523-833.1

Hande Pamukçu, Serhat Özsoy, Polat Can Aksoy, Ömur Polat Özsoy

{"title":"Evaluation of maxillary dimensional changes in the mixed dentition: clear aligners vs acrylic expanders.","authors":"Hande Pamukçu, Serhat Özsoy, Polat Can Aksoy, Ömur Polat Özsoy","doi":"10.2319/121523-833.1","DOIUrl":"10.2319/121523-833.1","url":null,"abstract":"Objectives: To compare changes in upper arch dimension and molar inclination between Invisalign First (IF) and removable acrylic expander (RE) treatments during the mixed dentition period.Materials and methods: Seventeen patients meeting inclusion criteria underwent IF treatment and were age matched with a group that received treatment with a removable acrylic expander (RE). Intercanine width (ICW), intermolar width, arch depth, buccolingual inclination of the first molars (MI), surface area (SA) and volume (VAP) of the anterior palate, and expansion were compared before and after treatment. The predictability of expansion was calculated for the IF group. Analysis of variance and Kruskal-Wallis tests were used to assess differences.Results: The ICW increased significantly by 2.14 mm in the IF group and 3.49 mm in the RE group, with no significant intergroup difference. Both groups exhibited significant increases in intermolar width (P < .05), except for intermolar distopalatal width in the IF group (P = .246). Mesiobuccal rotation of the first molar was observed with IF treatment. Although SA and VAP increased in both groups, the changes were not significant for the IF group (P > .05). The RE group exhibited significantly higher increases (P < .05), with an SA increase of 34.32 mm2 and VAP increase of 119.15 mm3. MI changes were in the opposite directions. The prediction accuracy of expansion was 70.28% for canines and 34.12% for first molars.Conclusions: Both appliances effectively expanded the intercanine region in growing patients. Expansion predictability was lower in first molars than in canines for the IF group. Removable acrylic expanders could be a choice of preference for expansion targeted to the molar region.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 4","pages":"392-399"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210520/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127785","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

Reducing the quality of our evidence base by publishing at any cost. 不惜代价出版，降低证据基础的质量。

The Angle orthodontist Pub Date : 2024-07-01 DOI: 10.2319/1945-7103-94.4.473

Theodore Eliades, Rolf G Behrents, Steven J Lindauer, David P Rice

引用次数: 0

Effects of bone anchored maxillary protraction on patients with unilateral cleft lip/palate or isolated cleft palate and hypoplastic maxilla: a 6-year follow-up case control study. 骨固定上颌骨牵引对单侧唇腭裂或孤立性腭裂和上颌骨发育不良患者的影响：一项为期 6 年的病例对照随访研究。

The Angle orthodontist Pub Date : 2024-07-01 DOI: 10.2319/090323-595

Anu Kiukkonen, David Rice, Sirpa Railavo

{"title":"Effects of bone anchored maxillary protraction on patients with unilateral cleft lip/palate or isolated cleft palate and hypoplastic maxilla: a 6-year follow-up case control study.","authors":"Anu Kiukkonen, David Rice, Sirpa Railavo","doi":"10.2319/090323-595","DOIUrl":"10.2319/090323-595","url":null,"abstract":"Objectives: To evaluate the effects of bone-anchored maxillary protraction (BAMP) treatment and longterm stability in growing cleft lip and palate and isolated cleft palate (CLP/CP) patients with mild maxillary hypoplasia and to compare maxillary growth patterns of BAMP-treated patients to matched control CLP/CP patients.Materials and methods: Ten patients with CLP/CP were treated with BAMP; they were compared to the maxillary growth pattern of 10 age-matched cleft control patients with no maxillary protraction treatment, who later received surgical Le Fort I maxillary advancement after the growth period. The assessment of maxillary growth and the occlusion started at mean 8 years of age and continued until mean 18 years of age.Results: The use of BAMP orthopedic traction changed the growth pattern of mild hypoplastic maxilla toward a more anterior direction and advanced the face even above the level of Le Fort lll with only a minor effect on dentoalveolar units. The correction of occlusion and facial convexity were stable in the long term.Conclusions: The using BAMP may improve the position of the maxilla relative to the anterior cranial base for the correction of mild maxillary hypoplasia in adolescent patients with CLP/CP. The achieved results are rather stable in the long term.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 4","pages":"448-454"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210510/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127784","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

Miniscrew anchorage versus Class II elastics for maxillary arch distalization using clear aligners. 使用透明矫治器进行上颌牙弓远端矫治时，微型螺钉锚固与 II 类弹性矫治器的比较。

The Angle orthodontist Pub Date : 2024-07-01 DOI: 10.2319/110723-743.1

Fen Liu, Jian Liu, Mengying Guo, Zhihua Li, Guang Shu, Fanfan Dai

{"title":"Miniscrew anchorage versus Class II elastics for maxillary arch distalization using clear aligners.","authors":"Fen Liu, Jian Liu, Mengying Guo, Zhihua Li, Guang Shu, Fanfan Dai","doi":"10.2319/110723-743.1","DOIUrl":"10.2319/110723-743.1","url":null,"abstract":"Objectives: To identify whether intramaxillary miniscrew anchorage could achieve a better maxillary arch distalization effect in clear aligner treatment compared to Class II elastics.Materials and methods: Thirty adult patients with Class II dentition who were treated with whole maxillary arch distalization using clear aligners were collected. Either intramaxillary miniscrew anchorage (miniscrew group, n = 17) or intermaxillary Class II elastics (Class II elastic group, n = 13) were used to support maxillary arch distalization. Three-dimensional predicted and achieved displacements, and angular changes of maxillary posterior teeth and anterior teeth, were measured and compared.Results: The achieved distalization efficiency was 36.2%-43.9% in the posterior teeth and the retraction efficiency was 36.9%-49.4% in the anterior teeth. No statistically significant differences were found in maxillary arch distalization efficiency between the groups. The miniscrew group achieved less incisor extrusion and posterior tooth distal tipping than the Class II elastic group. Both groups achieved comparable arch expansion, posterior tooth buccal inclination, and anterior tooth lingual inclination.Conclusions: Intramaxillary miniscrew anchorage and intermaxillary Class II elastics achieved comparable efficiency in maxillary arch distalization. However, the miniscrew anchorage showed better vertical control in anterior teeth and mesiodistal tipping control in posterior teeth.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 4","pages":"383-391"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210513/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127786","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

Optimization of three-dimensional printing parameters for orthodontic applications. 优化正畸应用中的三维打印参数。

The Angle orthodontist Pub Date : 2024-07-01 DOI: 10.2319/102423-722.1

Saro Atam, Cybelle L Pereira, Hammaad R Shah, Wei Hou, Wellington J Rody

{"title":"Optimization of three-dimensional printing parameters for orthodontic applications.","authors":"Saro Atam, Cybelle L Pereira, Hammaad R Shah, Wei Hou, Wellington J Rody","doi":"10.2319/102423-722.1","DOIUrl":"10.2319/102423-722.1","url":null,"abstract":"Objectives: To determine the impact of build orientation, increased layer thickness, and dental crowding on the trueness of three-dimensional (3D)-printed models, and to evaluate how these parameters affect the fit of thermoformed appliances.Materials and methods: Ninety-six dental models were printed horizontally and vertically on the building platform using different 3D-printing technologies: (1) a stereolithography (SLA) printer with layer thicknesses of 160 μm and 300 μm and (2) a digital light processing (DLP) printer with layer thicknesses of 100 μm and 200 μm. Each printed model was digitalized and superimposed on the corresponding source file using 3D rendering software, and deviations were quantified by the root mean square values. Subsequently, a total of 32 thermoformed appliances were fabricated on top of the most accurate 3D-printed models, and their fit was evaluated by digital superimposition and inspection by three blinded orthodontists. Paired t-tests were used to analyze the data.Results: Significant differences (P < .05) between printing technologies used were identified for models printed horizontally, with the SLA system achieving better trueness, especially in crowded dentitions. No significant differences between technology were found when models were printed vertically. The highest values of deviation were recorded in appliances fabricated on top of DLP-printed models. The results of the qualitative evaluation indicated that appliances fabricated on top of SLA models outperformed the DLP-modeled appliances.Conclusions: Three-dimensional printing with increased layer height seems to produce accurate working models for orthodontic applications.","PeriodicalId":94224,"journal":{"name":"The Angle orthodontist","volume":"94 4","pages":"375-382"},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11210519/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142127788","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