Australian Orthodontic Journal最新文献_第2页

Management of missing mandibular second premolars: a review. 下颌第二前磨牙缺失的治疗综述。

Australian Orthodontic Journal Pub Date : 2017-02-01

Azza H Al-Ani, Joseph S Antoun, Suzan Stacknik, Mauro Farella

引用次数: 0

The role of the foundation in Australian Orthodontic education. 基金会在澳大利亚正畸教育中的作用。

Australian Orthodontic Journal Pub Date : 2017-02-01

A Thornton Taylor

引用次数: 0

Australian Orthodontists: are they "with it". 澳大利亚的正畸医生:他们“跟上潮流”了吗?

Australian Orthodontic Journal Pub Date : 2017-02-01

J K Hawkins

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Brackets, epitopes and flash memory cards: a futuristic view of clinical orthodontics. 托架、表位和闪存卡:临床正畸的未来观。

Australian Orthodontic Journal Pub Date : 2017-02-01

Milton R Sims

引用次数: 0

A comparative evaluation of ion release from different commercially-available orthodontic mini-implants - an in-vitro study. 不同市售正畸微型种植体离子释放的比较评估-一项体外研究。

Australian Orthodontic Journal Pub Date : 2016-11-01

Venkateswaran Ananthanarayanan, Sridevi Padmanabhan, Arun B Chitharanjan

{"title":"A comparative evaluation of ion release from different commercially-available orthodontic mini-implants - an in-vitro study.","authors":"Venkateswaran Ananthanarayanan, Sridevi Padmanabhan, Arun B Chitharanjan","doi":"","DOIUrl":"","url":null,"abstract":"Background: Titanium alloy mini-implants have become popular in recent times and have been extensively used and studied. Although corrosion resistance of orthodontic materials has always been of concern, this property has been the least explored. The present study aimed to assess the composition, surface characterisation and corrosion resistance of five commercially available mini-implants by assaying ion release in artificial saliva.Methods: Ten mini-implants each from five companies were obtained: Group 1 - AbsoAnchor (Dentos Inc, South Korea); Group 2 - Microimplant Anchorage System (MIA, Biomaterials Korea); Group 3 - The Orthodontic Mini Anchorage System (TOMAS, Dentaurum, Germany); Group 4 - mini-implants (Denticon, Maharashtra, India); Group 5 - orthodontic mini-implants (lJ.Orthodontics, Kerala, India). One mini-implant from each group was subjected to characterisation and surface microstructure analysis using Energy Dispersive Atomic Spectrometry (EDAX) and Scanning Electron Microscope (SEM), respectively. Ten mini- implants were immersed for 30 days in Fusayama-Meyer artificial saliva solution and the release of titanium, aluminium and vanadium ions was detected with Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES). The Kruskal-Wallis test was used for multi-variate analysis. In order to determine the significant differences between the groups on independent samples, the Mann-Whitney U test (bi-variate analysis) was applied.Results and conclusion: All groups showed machining defects but surface pitting after immersion was mostly evident in Group 4. Although the composition of all the implants was comparable, there was a statistically significant difference in the Ti, Al and V release between Group 4 - the group with maximum release - and Group 2, the group with least release.","PeriodicalId":55417,"journal":{"name":"Australian Orthodontic Journal","volume":"32 2","pages":"165-174"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35887212","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

Orthodontists and the thyroid gland. 正畸医生和甲状腺。

Australian Orthodontic Journal Pub Date : 2016-11-01

Keith Godfrey

引用次数: 0

A computed tomographic, mixed dentition, space analysis comparison. 计算机层析，混合牙列，空间分析比较。

Australian Orthodontic Journal Pub Date : 2016-11-01

Luis Queijo, Francisco do Vale, Ana Corte-Real, Sonia Alves

{"title":"A computed tomographic, mixed dentition, space analysis comparison.","authors":"Luis Queijo, Francisco do Vale, Ana Corte-Real, Sonia Alves","doi":"","DOIUrl":"","url":null,"abstract":"Introduction: A considered space analysis aims to predict the combined mesiodistal widths of unerupted permanent canine and premolars. A miscalculation can lead to the application of inadequate and irreversible treatments.Objective: To assess the level of agreement between predictions generated by three methods (Moyers' predictive tables at the 50th and 75th percentiles and Tanaka-Johnston's equations) on the sum of unerupted teeth compared with measurements derived from cone beam computed tomography, considered in the present study as a 'gold standard'.Materials and methods: The study sample was comprised of children (N = 26) aged 8-13 who visited the Department of Dentistry. Moyers' predictive tables and the Tanaka-Johnston equation were applied to ascertain the space requirements. Cone beam computed tomography was performed on each patient and the volumetric data analysed. A concordance correlation coefficient between each method's predictions was applied.Results: The three methods tended to overestimate the cone beam computed tomography readings and were not able to entirely capture the variability of the sum of the unerupted teeth. Moyers' 50th percentile estimate revealed a more balanced distribution between over- and underestimation.Conclusion: The present study suggested that Moyers' 50th percentile is the predictive method with the lowest absolute error and is preferred for clinical use.","PeriodicalId":55417,"journal":{"name":"Australian Orthodontic Journal","volume":"32 2","pages":"199-205"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35887216","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

True intrusion of maxillary first molars with zygomatic and palatal miniscrew anchorage: a case report. 上颌第一磨牙真性侵入伴颧腭微支抗1例。

Australian Orthodontic Journal Pub Date : 2016-11-01

Tulika Tripathi, Shilpa Kalra, Priyank Rai, Farrukh Farazt, Navneet Singh

{"title":"True intrusion of maxillary first molars with zygomatic and palatal miniscrew anchorage: a case report.","authors":"Tulika Tripathi, Shilpa Kalra, Priyank Rai, Farrukh Farazt, Navneet Singh","doi":"","DOIUrl":"","url":null,"abstract":"The intrusion of the maxillary first molar is indicated when occlusal clearance is needed for prosthetic rehabilitation. Maxillary molar intrusion may be undertaken using skeletal anchorage systems to avoid complicated mechanics delivered by conventional intra-oral fixed appliances. In the present case report, the efficient use of orthodontic miniscrew anchorage by applying simple mechanics for true maxillary first molar intrusion is described. This was followed by the rehabilitation of the mandibular first molar spaces with implant prostheses. A 16-year-old female patient had masticatory difficulty due to the bilateral overeruption of the maxillary first molars and carious mandibular first molars. True intrusion of each maxillary first molar was achieved using zygomatic and palatal paramedian miniscrews placed in line with the central axis of the teeth. Simultaneously, alignment of the upper arch was achieved via fixed appliance therapy. Using two orthodontic miniscrews to intrude each maxillary molar, orthodontic treatment was simplified by eliminating the need for miniplate placement by extensive surgery and the creation of intra-oral multiunit anchorage. Masticatory efficiency was improved by increasing the occlusal table with prosthetic rehabilitation of the mandibular first molar spaces with dental implant prostheses.","PeriodicalId":55417,"journal":{"name":"Australian Orthodontic Journal","volume":"32 2","pages":"233-240"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35886677","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

Correction of the transverse discrepancy-induced spontaneous mandibular protrusion in Class II Division 1 adolescent patients. 矫正青少年II类1科患者因横向差异引起的自发性下颌突出。

Australian Orthodontic Journal Pub Date : 2016-11-01

Yanfang Yu, Mengjie Wu, Xuepeng Chen, Wen Li

{"title":"Correction of the transverse discrepancy-induced spontaneous mandibular protrusion in Class II Division 1 adolescent patients.","authors":"Yanfang Yu, Mengjie Wu, Xuepeng Chen, Wen Li","doi":"","DOIUrl":"","url":null,"abstract":"Background: A Class Il malocclusion is the most frequent sagittal skeletal disharmony presenting for orthodontic treatment. A transverse interarch discrepancy ITID) may be considered as a possible functional cause of a Class 11 relationship.Objective: The purpose of the present study was to determine transverse interarch width dimensions before and after orthodontic therapy and their possible relationship with increased mandibular projection following treatment.Methods: The sample included 40 adolescent patients who were divided into two groups, one possessing and one without a transverse discrepancy. Interarch width differences (including ICWD, IPWD, IMWD, IAWD) were measured before and after treatment, and Pogonion (Pog) to Nasion (NJ perpendicular was similarly measured in each group.Results: The differences in arch and alveolar width dimensions between the two groups (including ICWD, IPWDI, IPWDII, IMWD, IAWD) before treatment were statistically significant (p < 0.05). A comparison of Pog to N perpendicular between the two groups showed that mandibular protrusion after treatment in the transverse discrepancy group was 2.6 ± 1.3 mm, while mandibular protrusion after treatment in the group without a transverse discrepancy was 0.6 ±0.3 mm. The statistical comparison showed that the differences were significant (p < 0.01).Conclusion: A transverse interarch discrepancy may have a functional relationship with mandible retrusion. If a transverse discrepancy is corrected via orthodontic treatment, the mandible may spontaneously protrude.","PeriodicalId":55417,"journal":{"name":"Australian Orthodontic Journal","volume":"32 2","pages":"148-154"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35887210","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 validity, repeatability and reproducibility of the Peer Assessment Rating (PAR) between digital and conventional study models. 数字与传统研究模型的同行评估等级(PAR)的有效性、可重复性和再现性比较。

Australian Orthodontic Journal Pub Date : 2016-11-01

Sridhar Pasapula, Martyn Sherriff, Jeremy Breckon, Dirk Bister, Stefan Abela

{"title":"Comparison of validity, repeatability and reproducibility of the Peer Assessment Rating (PAR) between digital and conventional study models.","authors":"Sridhar Pasapula, Martyn Sherriff, Jeremy Breckon, Dirk Bister, Stefan Abela","doi":"","DOIUrl":"","url":null,"abstract":"Introduction: The validity, reliability and inter-method agreement of Peer Assessment Scores (PAR) from acrylic models and their digital analogues were assessed.Method: Ten models of different occlusions were digitised, using a 3 Shape R700 laser scanner (Copenhagen, Denmark). Each set of models was conventionally and digitally PAR-scored twice in random order by 10 examiners. The minimum time between repeat measurements was two weeks. The repeatability was assessed by applying Carstensen's analysis. Inter-method agreement (IEMA) was assessed by Carstensen's limit of agreement (LOA).Results: Intra-examiner repeatability (IER) for the unweighted and weighted data was slightly better for the conventional rather than the digital models. There was a slightly higher negative bias of -1 .62 for the weighted PAR data for the digital models. IEMA for the overall weighted data ranged from -8.70 - 5.45 (95% Confidence Interval, CI). Intra-class Correlation Coefficients lICC) for the weighted data for conventional, individual and average scenarios were 0.955 0.906 - 0.986 CI), 0.998 (0.995 - 0.999 CII. ICC for the weighted digital data, individual and average scenarios were 0.99 (0.97 - 1.00) and 1.00. The percentage reduction required to achieve an optimal occlusion increased by 0.4% for the digital scoring of the weighted data.Conclusion: Digital PAR scores obtained from scanned plastic models were valid and reliable and, in this context, the digital semi-automated method can be used interchangeably with the conventional method of PAR scoring.","PeriodicalId":55417,"journal":{"name":"Australian Orthodontic Journal","volume":"32 2","pages":"184-192"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35887214","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