Every day orthodontists observe the consequences habitual mouth breathing has in their patients’ oral cavities and the limitations this dysfunction places on their orthopedic and orthodontic treatments. Orthodontists can enlist the assistance of their ENT colleagues for the elimination of hypertrophied adenoidal and tonsillar tissue, but when asked to perform surgical correction of malformed nasal septa and turbinates for young children most otolaryngologists usually advise strongly against such procedures. Even surgery for labio-maxillo-palatal clefts is still entangled in the same web of dogmatic disapproval. For these unilateral or bilateral cleft patients, 75 % of whom breathe primarily through their mouths, the potential for growth is considered to be limited and unpredictable. This belief, we feel, is related to the tendency of workers in our field to pay insufficient attention to nasal breathing. But in our practice, for the past thirty years we have been re-establishing it for patients at about the age of 6 and now we are doing it for children between the ages of 4 and 5. For the last 13 years we have helped affected children to breathe nasally at the age of 6 months by means of an ambitious but rigorous surgical procedure on all patients with total clefts. The current results on the nasal and maxillary growth of these children are good enough to encourage us to continue along the same lines, with the expectation of very soon being able to confirm our results as they reach the end of their growth periods.
{"title":"Some comments on surgery of nasal septum and turbinates in children","authors":"J. Talmant, J. Talmant, J. Lumineau","doi":"10.1051/ODFEN/2010306","DOIUrl":"https://doi.org/10.1051/ODFEN/2010306","url":null,"abstract":"Every day orthodontists observe the consequences habitual mouth breathing has in their patients’ oral cavities and the limitations this dysfunction places on their orthopedic and orthodontic treatments. Orthodontists can enlist the assistance of their ENT colleagues for the elimination of hypertrophied adenoidal and tonsillar tissue, but when asked to perform surgical correction of malformed nasal septa and turbinates for young children most otolaryngologists usually advise strongly against such procedures. Even surgery for labio-maxillo-palatal clefts is still entangled in the same web of dogmatic disapproval. For these unilateral or bilateral cleft patients, 75 % of whom breathe primarily through their mouths, the potential for growth is considered to be limited and unpredictable. This belief, we feel, is related to the tendency of workers in our field to pay insufficient attention to nasal breathing. But in our practice, for the past thirty years we have been re-establishing it for patients at about the age of 6 and now we are doing it for children between the ages of 4 and 5. For the last 13 years we have helped affected children to breathe nasally at the age of 6 months by means of an ambitious but rigorous surgical procedure on all patients with total clefts. The current results on the nasal and maxillary growth of these children are good enough to encourage us to continue along the same lines, with the expectation of very soon being able to confirm our results as they reach the end of their growth periods.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125350278","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}
{"title":"Presenting this issue","authors":"S. Rozencweig","doi":"10.1051/odfen/2010301","DOIUrl":"https://doi.org/10.1051/odfen/2010301","url":null,"abstract":"","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121239117","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}
M. Valiathan, Tasha Metzgera, Hakan El, M. Hans, M. Palomo
The use of distraction osteogenesis to improve the airway volume of individuals affected by craniofacial anomalies is common practice today. The methods of assessing the outcomes of such surgical procedures have changed over the last several years. Objective : The objective of the present pilot study was to determine if the CBCT imaging modality may serve as a simple and reliable method for craniofacial practitioners to evaluate airway volume changes following distraction osteogenesis. Materials and Methods : Twelve patients who had previously undergone distraction osteogenesis for the primary purpose of improving their airways were enrolled in the current study. Pre (T0) and post-surgical (T1) CBCT’s volumes were analyzed to measure the nasopharyngeal (NP) and oropharyngeal (OP) volume changes. InVivoDental 4.0 (Anatomage Inc., San Jose, CA) (IVD) program was used to visualize and render the oropharyngeal (OP) and nasal passage (NP) volumes, separately. Means and standard deviations were calculated. Results : Of the 7 males and 5 females in the study, 4 patients underwent mandibular distraction (MandDO) and 8 underwent maxillary distraction (MaxDO). Four in the MaxDO group were treated with internal distractors and 4 were treated with external distractors. Individuals who underwent internal MaxDO greatly improved their NP volumes (1605 ± 1736 to 3273 ± 3130 mm 3 ) as did patients who underwent external MaxDO (5763 ± 5077 to 9243 ± 9442 mm 3 ). In comparison, the MandDO group’s NP volume showed modest gains (3519 ± 1944 to 3894 ± 2516 mm 3 ). With regard to the OP volumes, the MandDO group gained substantially (4906 ± 2347 to 11385.8 ± 6393.5 mm 3 ) while the MaxDO groups showed humble increases; internal MaxDO group (1779 ± 273.8 to 2639.5 ± 898.4 mm 3 ) and the external MaxDO group (8959 ± 5311 to 9734.13 ± 7124.7 mm 3 ). Conclusions : In the present preliminary study of assessing airway volume changes using CBCT on patients who have undergone different DO techniques, MandDO greatly increases OP volumes and MaxDO tends to increase NP volumes. The CBCT imaging modality holds great promise for craniofacial practitioners in its application to assess airways of individuals affected by craniofacial anomalies.
使用牵张成骨术来改善颅面畸形患者的气道容量是当今常见的做法。评估这类手术结果的方法在过去几年中发生了变化。目的:本初步研究的目的是确定CBCT成像模式是否可以作为颅面外科医生评估牵张成骨后气道体积变化的一种简单可靠的方法。材料和方法:本研究纳入了12例先前以改善气道为主要目的接受牵张成骨术的患者。分析术前(T0)和术后(T1) CBCT的体积，测量鼻咽(NP)和口咽(OP)体积的变化。使用InVivoDental 4.0 (Anatomage Inc.， San Jose, CA) (IVD)程序分别可视化和渲染口咽(OP)和鼻通道(NP)体积。计算平均值和标准差。结果:男性7例，女性5例，下颌牵张术4例，上颌牵张术8例。MaxDO组4例采用内牵张器治疗，4例采用外牵张器治疗。与接受外部MaxDO(5763±5077至9243±9442 mm 3)的患者相比，接受内部MaxDO的患者的NP体积(1605±1736至3273±3130 mm 3)得到了显著改善。相比之下，mando组的NP体积略有增加(3519±1944至3894±2516 mm 3)。在OP体积方面，mando组显著增加(4906±2347至11385.8±6393.5 mm 3)，而MaxDO组则略有增加;内部MaxDO组(1779±273.8 ~ 2639.5±898.4 mm 3)和外部MaxDO组(8959±5311 ~ 9734.13±7124.7 mm 3)。结论:在目前使用CBCT评估不同DO技术患者气道容积变化的初步研究中，mando大大增加了OP容积，而MaxDO倾向于增加NP容积。CBCT成像模式在颅面外科从业者应用于评估受颅面异常影响的个体气道方面具有很大的前景。
{"title":"Evaluation of Airway Volume Changes in Patients Treated with Distraction Osteogenesis: A Pilot Study","authors":"M. Valiathan, Tasha Metzgera, Hakan El, M. Hans, M. Palomo","doi":"10.1051/ODFEN/2010303","DOIUrl":"https://doi.org/10.1051/ODFEN/2010303","url":null,"abstract":"The use of distraction osteogenesis to improve the airway volume of individuals affected by craniofacial anomalies is common practice today. The methods of assessing the outcomes of such surgical procedures have changed over the last several years. Objective : The objective of the present pilot study was to determine if the CBCT imaging modality may serve as a simple and reliable method for craniofacial practitioners to evaluate airway volume changes following distraction osteogenesis. Materials and Methods : Twelve patients who had previously undergone distraction osteogenesis for the primary purpose of improving their airways were enrolled in the current study. Pre (T0) and post-surgical (T1) CBCT’s volumes were analyzed to measure the nasopharyngeal (NP) and oropharyngeal (OP) volume changes. InVivoDental 4.0 (Anatomage Inc., San Jose, CA) (IVD) program was used to visualize and render the oropharyngeal (OP) and nasal passage (NP) volumes, separately. Means and standard deviations were calculated. Results : Of the 7 males and 5 females in the study, 4 patients underwent mandibular distraction (MandDO) and 8 underwent maxillary distraction (MaxDO). Four in the MaxDO group were treated with internal distractors and 4 were treated with external distractors. Individuals who underwent internal MaxDO greatly improved their NP volumes (1605 ± 1736 to 3273 ± 3130 mm 3 ) as did patients who underwent external MaxDO (5763 ± 5077 to 9243 ± 9442 mm 3 ). In comparison, the MandDO group’s NP volume showed modest gains (3519 ± 1944 to 3894 ± 2516 mm 3 ). With regard to the OP volumes, the MandDO group gained substantially (4906 ± 2347 to 11385.8 ± 6393.5 mm 3 ) while the MaxDO groups showed humble increases; internal MaxDO group (1779 ± 273.8 to 2639.5 ± 898.4 mm 3 ) and the external MaxDO group (8959 ± 5311 to 9734.13 ± 7124.7 mm 3 ). Conclusions : In the present preliminary study of assessing airway volume changes using CBCT on patients who have undergone different DO techniques, MandDO greatly increases OP volumes and MaxDO tends to increase NP volumes. The CBCT imaging modality holds great promise for craniofacial practitioners in its application to assess airways of individuals affected by craniofacial anomalies.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128217670","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}
Cl. II Ballard, skeletal hyperdivergence. Cl. II, div 1 Angle, arch length discrepancy. This patient has serious functional problems having been a thumb sucker until a late age. As a result she retained a primitive swallowing pattern, was a mouth breather, and kept her tongue in a low position. Because of this patient’s numerous functional problems that could have a negative influence on the development of her entire facial complex, we decided to begin treatment with a stage of myofunctional therapy aimed at eliminating noxious habits little by little and at the same time providing us with an indication of how good her cooperation was going to be.
{"title":"Treatment of a case of hyperdivergence showing contributions of myo-functional therapy","authors":"J. Landau","doi":"10.1051/ODFEN/2010308","DOIUrl":"https://doi.org/10.1051/ODFEN/2010308","url":null,"abstract":"Cl. II Ballard, skeletal hyperdivergence. Cl. II, div 1 Angle, arch length discrepancy. This patient has serious functional problems having been a thumb sucker until a late age. As a result she retained a primitive swallowing pattern, was a mouth breather, and kept her tongue in a low position. Because of this patient’s numerous functional problems that could have a negative influence on the development of her entire facial complex, we decided to begin treatment with a stage of myofunctional therapy aimed at eliminating noxious habits little by little and at the same time providing us with an indication of how good her cooperation was going to be.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132581615","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}
The objective of this article is to demonstrate the effectiveness of good cooperation between orthodontists and Ear, Nose, and Throat specialists because of the importance of freeing the upper airways from obstruction in order to achieve a good orthodontic result as well as the other side of the coin, the beneficial effect orthodontic treatment can have in stimulating a functional liberation of those airways when no mechanical blockage is present. The article will emphasize how important it is for orthodontists to understand and to be alert to the signs and symptoms that would indicate the need for an ENT evaluation.
{"title":"The role of, and the control of, obstruction of the upper airways and of congenital and other ENT anomalies in excess vertical growth of the face that impede orthodontic treatment","authors":"J. G. Aben-Moha, B. Bonnet","doi":"10.1051/odfen/2010305","DOIUrl":"https://doi.org/10.1051/odfen/2010305","url":null,"abstract":"The objective of this article is to demonstrate the effectiveness of good cooperation between orthodontists and Ear, Nose, and Throat specialists because of the importance of freeing the upper airways from obstruction in order to achieve a good orthodontic result as well as the other side of the coin, the beneficial effect orthodontic treatment can have in stimulating a functional liberation of those airways when no mechanical blockage is present. The article will emphasize how important it is for orthodontists to understand and to be alert to the signs and symptoms that would indicate the need for an ENT evaluation.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122485676","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}
Measurements of nasal resistance do not give an exhaustive functional assessment of nasal breathing function. Nevertheless, an increase in its thermal endocranial exchanges during its operation, which are regulated specifically by respiratory nasal mucosa, can be utilized to construct an operative physiological definition of nasal breathing at a state of optimal rest. These precise assessments, in elucidating the etiology of oral-nasal malformations, can give a clear picture of the morphological characteristics that orthodontists should strive to optimize as the face develops over the course of their treatment of malocclusions.
{"title":"Current methods of treating nasal breathing problems in infants and children","authors":"J. Talmant, J. Deniaud","doi":"10.1051/ODFEN/2010304","DOIUrl":"https://doi.org/10.1051/ODFEN/2010304","url":null,"abstract":"Measurements of nasal resistance do not give an exhaustive functional assessment of nasal breathing function. Nevertheless, an increase in its thermal endocranial exchanges during its operation, which are regulated specifically by respiratory nasal mucosa, can be utilized to construct an operative physiological definition of nasal breathing at a state of optimal rest. These precise assessments, in elucidating the etiology of oral-nasal malformations, can give a clear picture of the morphological characteristics that orthodontists should strive to optimize as the face develops over the course of their treatment of malocclusions.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121755329","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}
Dr. Kokich, it has always been a pleasure to read your articles and to listen to your lectures, especially those you gave during your farewell appearance in Dubrovnik in September 2009. All of your presentations and your publications have given us much food for thought as well as practical suggestions we could use in our daily practices. This interview affords me the opportunity to thank you for your immense contributions to orthodontics.
{"title":"Interview with Vincent Kokich","authors":"V. Kokich, S. Rozencweig","doi":"10.1051/ODFEN/2010302","DOIUrl":"https://doi.org/10.1051/ODFEN/2010302","url":null,"abstract":"Dr. Kokich, it has always been a pleasure to read your articles and to listen to your lectures, especially those you gave during your farewell appearance in Dubrovnik in September 2009. All of your presentations and your publications have given us much food for thought as well as practical suggestions we could use in our daily practices. This interview affords me the opportunity to thank you for your immense contributions to orthodontics.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133520262","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}
The surgical treatment of maxillo-mandibular malformations accompanying cases of hyperdivergence should aim at achieving good function for the patient by increasing space available for the tongue to move in and for proper respiration to take place and by reducing the tensions affecting muscles and ligaments either by dis-inserting them or by moving skeletal structures in the direction that muscles attached to them contract. An analysis of the literature shows that by respecting these principles surgeons can obtain good results in the majority of cases even in instances of extreme deficiency of the body of the mandible or where lengthening of the ascending rami is required. For these patients a cooperative effort of the surgeon and the orthodontist becomes even more than ever indispensable. In addition it will be necessary for the treatment team to follow these patients for an extended post-operative period.
{"title":"Surgical considerations in the treatment of skeletal hyperdivergence","authors":"Tulasne Jf, E. Solyom","doi":"10.1051/ODFEN/2010307","DOIUrl":"https://doi.org/10.1051/ODFEN/2010307","url":null,"abstract":"The surgical treatment of maxillo-mandibular malformations accompanying cases of hyperdivergence should aim at achieving good function for the patient by increasing space available for the tongue to move in and for proper respiration to take place and by reducing the tensions affecting muscles and ligaments either by dis-inserting them or by moving skeletal structures in the direction that muscles attached to them contract. An analysis of the literature shows that by respecting these principles surgeons can obtain good results in the majority of cases even in instances of extreme deficiency of the body of the mandible or where lengthening of the ascending rami is required. For these patients a cooperative effort of the surgeon and the orthodontist becomes even more than ever indispensable. In addition it will be necessary for the treatment team to follow these patients for an extended post-operative period.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123906047","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}
Impacted upper canines occur, in buccal or palatal sites, in about 3% of the population and pose a threat to neighbouring teeth. Before orthodontists can bring them into their proper positions in the arch, oral surgeons often have to uncover them. In this article we discuss the traction pathways, open or tunnelised, that orthodontists can then use to begin moving them. While orthodontists can use both techniques successfully, they should understand the advantages and disadvantages of both before making a decision.
{"title":"Impacted maxillary canines: tunnelised or open traction:","authors":"H. V. Beek","doi":"10.1051/ODFEN/2010204","DOIUrl":"https://doi.org/10.1051/ODFEN/2010204","url":null,"abstract":"Impacted upper canines occur, in buccal or palatal sites, in about 3% of the population and pose a threat to neighbouring teeth. Before orthodontists can bring them into their proper positions in the arch, oral surgeons often have to uncover them. In this article we discuss the traction pathways, open or tunnelised, that orthodontists can then use to begin moving them. While orthodontists can use both techniques successfully, they should understand the advantages and disadvantages of both before making a decision.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123219835","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}
This article reports our study, carried out as a CECSMO assignment, assessing the effectiveness of resin modified glass ionomer cement as a bonding agent on enamel over a two year period and a consideration of the relative influence of two brands of attachments, Orthos and Damon. In our study group we had an overall rate of bonding rupture of 11.6%. 17% of direct and 33% of the indirect bondings loosened in the first trimester. Globally, the direct bonding had a higher survival rate, which was, after one year, 95.2% for the direct bonding and 90.7% for the indirect. The survival rate of attachments bonded to second molars was the lowest for all the teeth in the arch with Damon Indirect recorded at .889 after a year and Orthos Indirect .524 after a year. We categorized our results in relation to the characteristics of our sample (its size, its heterogeneity, and the duration of the observation period) and in relation to the characteristics of the attachments (their size and the surface and type of their bases) and in relation to the protocols (of indirect bonding, of preparation of enamel surface, of photopolymerization, of placement of the first arch, of bracket size, of ligature placement, and type of mechano-therapy used). Our study confirmed the hypothesis that direct or indirect bonding with Fuji Ortho LC @ functions effectively in the daily practice of orthodontics. Our rates of accidental attachment debonding and our rates of bonding survival were acceptable except in Orthos indirect bonding of mandibular teeth. We found that under the conditions of our study direct bonding functioned slightly better than indirect bonding. Practitioners need to know and understand certain parameters influencing the use of resin modified glass-ionomer cement for bonding orthodontic attachments in order to optimize its success notable with regard to the choice of attachments with respect to bonding material or the effect of overbite on retention of attachments. Furthermore, the multiplicity of interfaces and of materials utilized in indirect bonding weakened bond strength under the conditions and protocols of our study.
{"title":"Evaluation of the effectiveness of indirect bonding of orthodontic attachments with RMGIC Resin Modified Glass-Ionomer Cement","authors":"A. Wurth, J. Forestier, Marius Dumitrache","doi":"10.1051/ODFEN/2010207","DOIUrl":"https://doi.org/10.1051/ODFEN/2010207","url":null,"abstract":"This article reports our study, carried out as a CECSMO assignment, assessing the effectiveness of resin modified glass ionomer cement as a bonding agent on enamel over a two year period and a consideration of the relative influence of two brands of attachments, Orthos and Damon. In our study group we had an overall rate of bonding rupture of 11.6%. 17% of direct and 33% of the indirect bondings loosened in the first trimester. Globally, the direct bonding had a higher survival rate, which was, after one year, 95.2% for the direct bonding and 90.7% for the indirect. The survival rate of attachments bonded to second molars was the lowest for all the teeth in the arch with Damon Indirect recorded at .889 after a year and Orthos Indirect .524 after a year. We categorized our results in relation to the characteristics of our sample (its size, its heterogeneity, and the duration of the observation period) and in relation to the characteristics of the attachments (their size and the surface and type of their bases) and in relation to the protocols (of indirect bonding, of preparation of enamel surface, of photopolymerization, of placement of the first arch, of bracket size, of ligature placement, and type of mechano-therapy used). Our study confirmed the hypothesis that direct or indirect bonding with Fuji Ortho LC @ functions effectively in the daily practice of orthodontics. Our rates of accidental attachment debonding and our rates of bonding survival were acceptable except in Orthos indirect bonding of mandibular teeth. We found that under the conditions of our study direct bonding functioned slightly better than indirect bonding. Practitioners need to know and understand certain parameters influencing the use of resin modified glass-ionomer cement for bonding orthodontic attachments in order to optimize its success notable with regard to the choice of attachments with respect to bonding material or the effect of overbite on retention of attachments. Furthermore, the multiplicity of interfaces and of materials utilized in indirect bonding weakened bond strength under the conditions and protocols of our study.","PeriodicalId":381766,"journal":{"name":"Journal of Dentofacial Anomalies and Orthodontics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121656036","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：