Orthodontics : the art and practice of dentofacial enhancement最新文献_第2页

Growth modulation using functional appliances--cephalometric predictors of successful response. 使用功能性器具调节生长——成功反应的头测预测指标。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.917

Sharanya Ajit Kumar, K Sadashiva Shetty, A T Prakash

{"title":"Growth modulation using functional appliances--cephalometric predictors of successful response.","authors":"Sharanya Ajit Kumar, K Sadashiva Shetty, A T Prakash","doi":"10.11607/ortho.917","DOIUrl":"https://doi.org/10.11607/ortho.917","url":null,"abstract":"Aim: The aim of this study was to determine any skeletal morphologic features evident on a pretreatment lateral cephalogram that may be used to predict improvement in the sagittal relationship during functional appliance therapy in Class II patients and compare changes between cases with and without a favorable response to growth modulation.Method: Pretreatment and postfunctional lateral cephalograms were analyzed, and the change in the ANB angle was used to determine the skeletal response to treatment with a functional appliance. Based on the change in the ANB angle, the patients were divided into two groups of 12 patients each. Comparisons were made between the mean pretreatment (T1) cephalometric parameters of group I (skeletal) and group II (nonskeletal) to assess any pretreatment parameters that were significantly different between the groups. Changes due to functional appliance therapy from the pretreatment (T1) to postfunctional (T2) stage was measured as T2-T1 in both groups. The mean changes seen in group I and group II were then compared to assess the difference between changes brought about by growth modulation using functional appliances. Comparative statistical analysis of the data was done using one-way analysis of variance F test.Results and conclusion: This study showed that not all cases respond favorably to growth modulation. The pretreatment parameters that correlated to a favorable response were low mandibular plane angle, low basal plane angle, and a high Jarabak ratio. In those cases that responded favorably, the changes seen were an increase in Co-Go (ramus height), decrease in overjet, increase in SNB, and increase in the Jarabak ratio.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"14 1","pages":"e50-9"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11607/ortho.917","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31408694","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: 3

Unilateral scissors bite treated with a removable plate that incorporates a Ti-Ni wire. 单边剪刀咬伤治疗与一个可移动的板，其中包括一个钛镍线。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.921

Hiroko Ohmori, Takashi Ono

引用次数: 6

Distalization of maxillary molars using a lever arm and mini-implant. 使用杠杆臂和微型种植体的上颌磨牙远端。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.604

Júlio de Araújo Gurgel, Célia Regina Maio Pinzan-Vercelino, Fausto Silva Bramante, Alan Poy Rivera

引用次数: 4

Anteroposterior relationship of the maxillary central incisors to the forehead in adult white males. 成年白人男性上颌中切牙与前额的前后关系。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.906

Maggie Adams, Will Andrews, Timothy Tremont, Chris Martin, Thomas Razmus, Erdogan Gunel, Peter Ngan

{"title":"Anteroposterior relationship of the maxillary central incisors to the forehead in adult white males.","authors":"Maggie Adams, Will Andrews, Timothy Tremont, Chris Martin, Thomas Razmus, Erdogan Gunel, Peter Ngan","doi":"10.11607/ortho.906","DOIUrl":"https://doi.org/10.11607/ortho.906","url":null,"abstract":"Aim: To evaluate and compare the anteroposterior relationship of the maxillary central incisors to the forehead in white male adults with harmonious profiles and white male adult orthodontic patients.Methods: Photographs of 101 white male adults with good facial harmony (control sample) were compared with photographs of 97 white male adults seeking orthodontic treatment (study sample). All were profile images with the maxillary central incisors and foreheads in full view. The images were imported into an image editing software program, resized, and rotated to the upright head position. Reference lines were constructed to assess the anteroposterior positions of the maxillary central incisors and forehead inclinations.Results: In the control sample, the maxillary central incisors were positioned between the forehead facial axis (FFA) point and glabella in 91%, posterior to the FFA point in 8%, and anterior to the glabella in <1%. The position of the maxillary central incisors was moderately correlated with forehead inclination (r² = 0.37). In the study sample, the maxillary central incisors were positioned between the FFA point and glabella in 34%, posterior to the FFA point in 59%, and anterior to the glabella in 7%. Maxillary central incisor position and forehead inclination were strongly correlated (r² = 0.53). The anteroposterior maxillary incisor position relative to the forehead between the control and study groups was significantly different (P < .0001). In addition, the forehead inclination between the control and study group was significantly different (P < .05).Conclusion: The forehead is an important landmark for anteroposterior maxillary incisor positioning for adult white male patients seeking improved facial harmony.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"14 1","pages":"e2-9"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11607/ortho.906","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31501783","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: 21

Prevention of enamel demineralization during orthodontic treatment: an in vitro comparative study. 正畸治疗中牙釉质脱矿的预防:一项体外比较研究。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.870

Yashodhan M Bichu, Nandini Kamat, Pavan Kumar Chandra, Aditi Kapoor, Thomas Razmus, N K S Aravind

{"title":"Prevention of enamel demineralization during orthodontic treatment: an in vitro comparative study.","authors":"Yashodhan M Bichu, Nandini Kamat, Pavan Kumar Chandra, Aditi Kapoor, Thomas Razmus, N K S Aravind","doi":"10.11607/ortho.870","DOIUrl":"https://doi.org/10.11607/ortho.870","url":null,"abstract":"Aim: Enamel demineralization is considered to be the most prevalent and significant iatrogenic effect associated with fixed orthodontic treatment and can seriously jeopardize both tooth longevity and dental esthetics. This in vitro study was undertaken to compare the effectiveness of four different commercially available surface treatment medicaments for the inhibition of enamel demineralization.Methods: Seventy-five intact maxillary premolars extracted from patients undergoing orthodontic treatment were divided into five equal groups and were subjected to one of the following protocols: no treatment (control group) or treatment with one of the following four medicaments: fluoride varnish (Fluor Protector [FP]), casein phosphopeptide-amorphous calcium phosphate (GC Tooth Mousse [TM]), calcium sodium phosphosilicate (SHY-NM), and casein phosphopeptide-amorphous calcium phosphate with fluoride (GC Tooth Mousse Plus [TMP]). All the teeth were subjected to ten Cate demineralization solution?for 96 hours and subsequently evaluated under polarized light microscopy to obtain the mean depths of enamel demineralization. One-way analysis of variance and Bonferroni comparison tests were used to obtain statistically significant differences between the five different groups at P < .05.Results: All four surface treatment medicaments provided statistically significant reduction in the depths of enamel demineralization as compared with the control group. FP provided the greatest protection of enamel surface in terms of reduction of lesion depth, followed by TMP, SHY-NM, and TM.Conclusions: The use of these commercially available medicaments could prove to be beneficial for patients undergoing orthodontic treatment and who are at a risk for developing enamel decalcification.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"14 1","pages":"e22-9"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11607/ortho.870","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31408285","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: 14

Changes in nasal profile following maxillomandibular osteotomy for prognathism. 上颌下颌截骨治疗前突术后鼻廓的改变。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.895

Davide J Bottini, Pietro Gentile, Giulio Cervelli, Valerio Cervelli

{"title":"Changes in nasal profile following maxillomandibular osteotomy for prognathism.","authors":"Davide J Bottini, Pietro Gentile, Giulio Cervelli, Valerio Cervelli","doi":"10.11607/ortho.895","DOIUrl":"https://doi.org/10.11607/ortho.895","url":null,"abstract":"Aim: This article is based on a pre- and postoperative retrospective analysis of a sample of patients affected by progenic syndrome who underwent maxillary bone repositioning by maxillomandibular osteotomies. Pre- and postoperative clinical, photographic, and cephalometric analysis are carried out to assess modifications of the nasal shape due to maxillary osteotomies.Methods: The sample group studied was made up of 25 patients (13 women, 12 men) who underwent orthodontic-surgical treatment for correction of maxillomandibular deformities. The sample group was divided into two groups: the first (group A) was made up of patients who underwent maxillomandibular repositioning with advancement and lowering of the maxilla, and the second (group B) comprised patients who, as a consequence of surgical repositioning, had a maxilla that was advanced and raised. Surgical treatment was based on Le Fort I and quadrangular Le Fort osteotomies.Conclusion: Evaluation of angular and linear measurements, derived from both photographic and cephalometric material, allowed the authors to compare the two groups of patients and the modifications of the nasal region. These results are then compared with those available from current scientific literature so as to define the predictability of nasal shape modification. In conclusion, it is inadvisable to perform rhinoplasty at the time of orthognathic surgery to correct pre-existing defects, such as a dorsal hump, a nasal base that is too wide or too narrow, a nasal pyramid deviation, or other esthetic defects resulting from orthognathic surgery.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"14 1","pages":"e30-8"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11607/ortho.895","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31408692","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: 5

Modified fixed nanobite tandem appliance for rapid correction of developing Class III malocclusion. 改良固定纳米齿串联矫治器快速矫治发展中的III类错牙合。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.924

K C Prabhat, Maheshwari Sandhya, Kumar Verma Sanjeev, Tariq Mohd, Naved Zahid Syed

{"title":"Modified fixed nanobite tandem appliance for rapid correction of developing Class III malocclusion.","authors":"K C Prabhat, Maheshwari Sandhya, Kumar Verma Sanjeev, Tariq Mohd, Naved Zahid Syed","doi":"10.11607/ortho.924","DOIUrl":"https://doi.org/10.11607/ortho.924","url":null,"abstract":"Aim: Rapid correction of developing Class III malocclusion in pediatric patients using a method with decreased reliance on patient compliance and increased patient comfort.Method: The modified fixed nanobite tandem appliance (MFNTA) consists of three components, two fixed and one removable. The maxillary fixed appliance consists of a nickel-titanium fixed maxillary expander and a soldered buccal arm used for Class III elastic traction. The mandibular appliance consists of modified fixed nanobite and buccal headgear tubes welded to the mandibular first molar band for facebow attachment.Result: Pre- and posttreatment records revealed significant skeletal improvement without increase in the vertical dimension and marked improvement in facial balance and esthetics.Conclusion: MFNTA has the potential to be an effective tool in the treatment of developing Class III malocclusion and relief of the psychologic trauma caused by an anterior crossbite.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"14 1","pages":"e178-85"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11607/ortho.924","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31501780","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: 1

Controlling mechanical undesirable side effects with a tooth indicated for extraction: free anchorage. 控制机械不良的副作用与牙齿表明拔牙:自由锚定。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.927

André da Costa Monini, Luiz Gonzaga Gandini, Marcia Regina Elisa Aparecida Schiavon Gandini, Gustavo Maiola de Souza Leite, Alexandre Protàsio Vianna

引用次数: 0

Maxillary molar distalization with the indirect Palatal miniscrew for Anchorage and Distalization Appliance (iPANDA). 上颌磨牙远端使用间接腭微螺钉固定和远端器(iPANDA)。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.982

Eduardo Yugo Suzuki, Boonsiva Suzuki

{"title":"Maxillary molar distalization with the indirect Palatal miniscrew for Anchorage and Distalization Appliance (iPANDA).","authors":"Eduardo Yugo Suzuki, Boonsiva Suzuki","doi":"10.11607/ortho.982","DOIUrl":"https://doi.org/10.11607/ortho.982","url":null,"abstract":"Aim: Distalization of the maxillary molars is an important treatment option for the correction of Class II malocclusions. The purposes of this study were to introduce the clinical application of the indirect Palatal miniscrew Anchorage and Distalization Appliance (iPanda) and to describe the dental and skeletal effects obtained with this innovative appliance.Methods: Pretreatment (TO), post-distalization (T1), and posttreatment (T2) lateral cephalometric radiographs and dental casts of 20 consecutively treated adult patients (mean age 23.2 ± 4.7 years) with Class II molar relationship were analyzed. All patients were treated with the iPanda for maxillary molar distalization. The iPanda was anchored on a pair of midpalatal miniscrew implants to deliver the distalizing force to the maxillary first molars. The iPanda was the only appliance used during the distalization phase of treatment. A paired t test analysis was used to statistically assess the effects of treatment.Results: A Class I molar relationship was obtained in a mean period of 3.2 ± 0.6 months. Cephalometric analysis demonstrated that the maxillary first molars were significantly distalized by an average 4.5 ± 1.5 mm (P < .001) and were intruded by a mean of 1.0 mm ± 0.8 mm (P < .05). No significant change in the inclination of the first molars was observed. No significant change in the mandibular plane was observed. Dental model analysis demonstrated an asymmetric pattern of distalization between right (4.5 ± 2.2 mm) and left (3.1 ± 2.1 mm) first molars. The transverse width of the dental arch was maintained. No significant rotation of the first molars was observed.Conclusions: This study demonstrated that the innovative iPanda is effective to bodily distalize the maxillary molars into a Class I molar relationship and to provide maximum anchorage.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"14 1","pages":"e228-41"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11607/ortho.982","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31408287","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: 19

Determination of optimum adhesive thickness using varying degrees of force application with light-cured adhesive and its effect on the shear bond strength of orthodontic brackets: an in vitro study. 光固化胶粘剂不同施力程度下最佳粘接剂厚度的确定及其对正畸托槽剪切粘接强度的影响:一项体外研究。

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI: 10.11607/ortho.919

Mahesh Jain, Siddarth Shetty, Subraya Mogra, V Surendra Shetty, Nidhi Dhakar

{"title":"Determination of optimum adhesive thickness using varying degrees of force application with light-cured adhesive and its effect on the shear bond strength of orthodontic brackets: an in vitro study.","authors":"Mahesh Jain, Siddarth Shetty, Subraya Mogra, V Surendra Shetty, Nidhi Dhakar","doi":"10.11607/ortho.919","DOIUrl":"https://doi.org/10.11607/ortho.919","url":null,"abstract":"Aim: The thickness of the adhesive layer under a bracket may be an important factor that affects the final tooth position and bond strength. With increasing use of preadjusted brackets, it is important to ensure that a consistently even layer of composite is placed under each bracket to take full advantage of bracket design and to avoid the need for compensatory bends to be placed in the archwire. Therefore, the present study is aimed at determining the optimum adhesive thickness by varying the force of application and observing the effect on the shear bond strength of orthodontic brackets.Methods: Sixty premolars extracted for orthodontic purposes were divided into three groups of 20 samples each. Adhesive thickness was measured by varying the force of application while bonding brackets with light-cured adhesive and tested on a universal testing machine to evaluate the shear bond strength.Results: The study showed that adhesive thickness is inversely proportional to applied force. In addition, the shear bond strength has a tendency to increase with a decrease in adhesive thickness up to a certain extent and then decrease.Conclusion: Adhesive thickness between bracket base and tooth surface decreases with an increase in the amount of force application from 1 to 3 oz. Mean shear bond strength increases when adhesive thickness decreases from 0.99 to 0.83 mm, and then it has a tendency to decrease when adhesive thickness decreases to 0.72 mm. Optimum adhesive thickness should be considered to be 0.83 mm, which is the thickness required to achieve sufficient bond strength to prevent chances of bond failure.","PeriodicalId":89450,"journal":{"name":"Orthodontics : the art and practice of dentofacial enhancement","volume":"14 1","pages":"e40-9"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.11607/ortho.919","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31408693","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: 12