scholarly journals Differences of patients with Angle class I type 1 profile before and after treated with removable orthodontic appliance

2017 ◽  
Vol 29 (1) ◽  
Author(s):  
Novita Asti Nada ◽  
N.R.Yuliawati Zenab ◽  
Isnaniah Malik

ABSTRACTIntroduction: Children with bad habit and the persistence of deciduous teeth can caused malposition of anterior permanent teeth or Angle Class I Type 1 malocclusion. One of the curative treatment is removable orthodontic appliance. The purpose of this study was to determine the difference of dental arch width, overjet and overbite in patients with Angle Class I Type 1 before and after treated with removable orthodontic appliance in Dental Student Clinic in Faculty of Dentistry Padjadjaran University. Method: The research was conducted using 33 patient study models of Angle Class I Type 1 who were treated with removable appliance from year 2014 to 2015 in accordance with the criteria. Research method statistically analyzed with paired t-test sample. The dental arch width, overjet and overbite were measured with caliper of patient study models before and after treatment with removable orthodontic appliance. Results: The difference value before and after treatment using removable orthodontic appliance were 2.8% for anterior dental arch width, 2.4% for posterior dental arch width, 10.7% for overjet and 11% for overbite. Conclusion: The differences value of dental arch width, overjet and overbite in patients with Angle Class I Type 1 before and after treated with removable orthodontic appliance showed only a little progress of the treatment caused by multiple factors. Keywords: Angle class I type 1, Dental arch width, Overjet, Overbite

2006 ◽  
Vol 45 (02) ◽  
pp. 191-194 ◽  
Author(s):  
E. Tauferová ◽  
Z. Teuberová ◽  
M. Seydlová ◽  
V. Smutný ◽  
J. Racek ◽  
...  

Summary Objectives: The diagnostic procedure commences with the initial examination, during which a number of individual findings of the occlusion or malocclusion are clarified [1]. The objective is to describe the morphological and functional characteristics on each patient using specific guidelines, and then to provide a prognosis of the therapy. Upper and lower arch compression in first premolars and molars area was visible before treatment. Methods: A special device (Czech technical university research prototype) was prepared for this purpose. The optical head contains a digital color camera. The front of the optical head consists of a removable prism which is put into the mouth. The findings can display live images from the camera, which can be archived on a PC. The device captured and geometrically calibrated images permitting comparison of several different dental casts. Results: In the first part of this study 792 sets of study plaster casts were screened. Measurements of dental arch width between reference points of canines, first premolars and first molars were made: upper jaw: men: 3-3 – 35.1 mm (SE 0.13); 4-4 – 37.5 mm (SE 0.13); 6-6 – 48.1 mm (SE 0.19); women: 3-3 – 33.4 mm (SE 0.13); 4-4 – 35.6 mm (SE 0.15); 6-6 – 46.7 mm (SE 0.19). The second part concerns the group of 36 patients which is different from the 792 controls. There were studied changes between initial, post-treatment and post-retention alignment of upper and lower dental arch. Conclusions: Geometrically calibrated images help compare several different steps of the treatment and show a significant difference between patients before and after treatment.


2015 ◽  
Vol 1 (2) ◽  
pp. 134
Author(s):  
Novitria Zahrotul Malikha ◽  
Sri Suparwitri ◽  
Soekarsono Hardjono

Pencabutan dini pada gigi desidui seringkali menyebabkan perpendekan lengkung sehingga ruang yang dibutuhkan untuk erupsi gigi permanen kurang. Kaninus ektopik, impaksi premolar dan asimetri rahang adalah kasus yang sering terjadi akibat kurangnya ruang untuk erupsi gigi. Pasien perempuan usia 20 tahun, mengeluhkan gigi gingsul dan tidak rapi. Pemeriksaan objektif menunjukkan crowding rahang atas dan rahang bawah, kaninus maksila kanan atas ektopik, premolar mandibula kanan impaksi, disertai pergeseran midline. Maloklusi Angle kelas I dengan hubungan skeletal kelas I, overbite 1 mm, overjet  1,3 mm, crowding mandibula dan maksila, ektopik kaninus unilateral, impaksi premolar unilateral, asimetri rahang dan pergeseran midline. Pencabutan dilakukan pada 2 gigi premolar pertama rahang atas dan 2 gigi molar pertama rahang bawah yang mengalami nekrosis. Perawatan menggunakan alat cekat teknik Edgewise dengan multiloop. L loop digunakan untuk ekstrusi gigi kaninus ektopik dan menarik impaksi premolar. Asimetri rahang dikoreksi dengan ekspansi lengkung gigi menggunakan mainarchwire. Setelah 7 bulan perawatan, gigi kaninus yang ektopik, impaksi premolar dan crowding terkoreksi. Overjet dan overbite menjadi 2,5 mm. Perawatan masih berlangsung hingga saat ini. Penggunaan multiloop pada teknik Edgewise efektif untuk mengoreksi crowding gigi dan L loop efektif untuk mengekstrusi gigi kaninus ektopik dan impaksi premolar. ABSTRACT: Management of Impacted Premolar, Ectopic Canine and Jaw Asymmetry Case Using Edgewise Technique. The premature loss of primary teeth may reduce the arch length required for permanent teeth eruption. Ectopic canine, premolar impaction and jaw asymmetry are often encountered due to the lack of space for permanent teeth eruption. A twenty-year-old female patient complained an ectopic canine and crowding of upper and lower teeth. The objective examination found maxilla and mandibula crowding, ectopic right maxilla canine, mandibular premolar impaction, and midline shift of maxilla and mandibula. Angle class I malocclusion, overbite 1 mm, overjet 1.3 mm, maxilla and mandibula crowding, unilateral ectopic canine, unilateral premolar impaction, jaw asymmetry and midline shift occurred. Extraction of 2 maxillary first premolars and 2 necrose mandibular first molars was conducted followed by a treatment using fixed orthodontic appliance Edgewise technique with multiloop. The ectopic canine and premolar impaction were extruded using L loop. Jaw asymmetry was corrected by expanding the dental arch using the expanded main archwire. Ectopic canine, premolar impaction, maxilla and mandibula crowding were corrected after 7 months of treatment. The overjet and overbite reached 2.5 mm. The treatment is still ongoing. The multiloop edgewise archwire technique is found effective to overcome dental crowding, and L loop is effective to extrude the ectopic canine and premolar impaction.


2019 ◽  
Vol 1 (2) ◽  
pp. 126-141
Author(s):  
Murniwati Murniwati ◽  
Maya Syafitri

Dental cast analysis is one of the important thing in orthodontic treatments. One of the dental cast analysis which is usually used is Pont analysis, proposed in 1909. Pont did his research to a population in French which is Caucasian and stated that his theory needs to be tested to another ethnics to verify the applicability of Pont analysis to that population. On each race, there are some specific physical characteristics such as the form and width of dentition and dental arch. Minang population are Mongolian who has the different characteristics of dentition and dental arch with the Caucasians.The aim of this study is to identify whether Pont analysis is precise to be used to Minang population. Method : Cross-sectional design was used in this study. This study was done to 65 upper dental casts from Minang student at the Faculty of Dentistry Andalas University who met the inclusion criteria. The difference between the measured and the calculated interpremolar and intermolar arch width was tested with paired T test with the significant value of 0.05 (p=0.05). Result : Mean value of interpremolar width was 37.8838 ± 2.29042 mm and intermolar width was 47.6046±3.18780 mm. The result of statistical analysis showed that there is no significant differences of the measured and the calculated interpremolar and intermolar width of Minang Student at Faculty of Dentistry Andalas University (p>0.05). Conclusion : Pont analysis can be used as one of the dental cast analysis in orthodontic diagnosis and treatment planning to Minang population. It is suggested to do a further research to identify lower dental arch form of the Minang population whose upper dental arch width equals to the predicted arch width according to Pont’s formula.


2016 ◽  
Vol 28 (2) ◽  
Author(s):  
Bebby Putri ◽  
Isnaniyah Malik ◽  
N R Yuliawati Zenab

Introduction: Dental arch width measurement is needed to determine diagnoses and orthodontic treatment planning of Angle Class II Division 1 and Class II Division 2  malocclusions that have narrow maxillary dental arch generally. Dental arch width in this study was measured by maxillary and mandibular intercanine width.  This study aimed to compare the differences of intercanine width between Angle Class II division 1 and Class II division 2 malocclusions. Methods: Descriptive comparative research with total samples of 67 study models, consisted of 34 Class II division 1 cases and 33 Class II division 2 cases. The minimum age of the samples chosen was 13 years old with no history of orthodontic treatment. A non probability consecutive sampling technique was used. Results: Study results showed the avarage maxillary and mandibular intercanine width of Class II Division 1 were 33,99 mm and 26,33 mm. Average maxillary and mandibular intercanine width of Class II Division 2 were 34,77 mm and 25,37 mm. Conclusions: T-test analysis showed no statistical significant differences in the intercanine width between Angle Class II Division 1 and Class II Division 2  malocclusions.


2018 ◽  
Vol 7 (2) ◽  
pp. 29-33 ◽  
Author(s):  
E. Yu. Efimova

The study of of dental arches morphology is relevant for the improvement and development of new diagnostic and surgical methods. The aim is to make a comparative evaluation of the dental arches width on the upper jaw in mature aged men with physiological occlusion depending on the craniotype. Material and methods. The morphometric parameters of the maxillary dental arches’ width have been studied. The work was performed on 172 preparations of mature aged male skulls with physiological occlusion of teeth. The cranial index was defined as the ratio of the transverse dimension of neurocranium to its longitudinal dimension. When examining dental arches, the main points were set on the medial and distal corners of the tooth crowns from the vestibular and palatal sides. The width of the maxillary dental arch was measured between canines, premolars and molars. Results. The values of the width indices of both the vestibular and palatal sides of the maxillary dental arches at all levels of measurement prevail in the brachycranial type of the skull. The indicators of the maxillary dental arches width in mesocranes are more then those in dolichocranes only at canines and the first premolars. At the second premolars and molars, the difference in the average statistical parameters of the width of the dental arches was not observed. Conclusions. The width of maxillary dental arches in men of mature age depends on craniotype. The new data obtained as a result of the research, supplement and expand the information on the studied parameters, both in theoretical and clinical aspects.


2007 ◽  
Vol 77 (6) ◽  
pp. 1067-1072 ◽  
Author(s):  
Weiran Li ◽  
Jiuxiang Lin

Abstract Objective: To evaluate the transverse stability of the dental arch in unilateral cleft lip and palate (UCLP) patients after orthodontic treatment with quadhelix and edgewise appliances. Materials and Methods: Twenty repaired complete UCLP patients with posterior crossbites were chosen as the study subjects. All had ceased retention at least 15 months previously. Measurements were carried out directly on the pretreatment, posttreatment, and postretention study models using a three-dimensional dental cast analyzer. The interdental widths were measured for the canines, first premolars, second premolars, first molars, basal bone, and the alveolar arch. Two-way analysis of variance and Fisher's LSD was performed in comparing the difference between intervals. Results: Lower inter-first-premolar width and upper arch widths of each region increased significantly (P < .05) after orthodontic treatment. The expansion was greater in the anterior than the posterior region in the upper arch, and the greatest increase was in the upper first premolar region. The upper arch width decreased after retention, with the decrease of the arch width in the upper canine (1.3 ± 0.8 mm) and first premolar (1.5 ± 0.8 mm) regions being statistically significant. The increased upper arch width in each region and the lower inter-first-premolar width maintained significant expansion after retention. Conclusions: The widths of the dental arch increased significantly after expansion with a quadhelix followed by preadjusted edgewise treatment. Relapse occurred, especially in the upper canine and first premolar region, but most of the treatment effect on the upper arch remained after retention.


2017 ◽  
Vol 1 ◽  
Author(s):  
Jian Ke Khoo ◽  
Thahar Bergman ◽  
Laviana Avi ◽  
Firman Ria N

<p class="AbstractContent"><strong>Objective:</strong> A concern in fixed appliances orthodontic treatment besides reestablishing the normal occlusion characteristics might cause repositioning of the condyle position in TMJ region. The objective of this research is to find out whether there is a difference of TMJ position in Angle class I malocclusion type 1, 2, 3, 4, and 5 before and after fixed appliances orthodontic treatment.</p><p class="AbstractContent"><strong>Methods:</strong> This research is a pre-and-post design study with analytical statistical approach which compared the TMJ position obtained from tracings 80 lateral cephalometric radiographs before and after fixed appliances orthodontic treatment. Purposive sampling technique was used to determine the sample size in Orthodontic Department of Rumah Sakit Gigi dan Mulut Universitas Padjadjaran from 2009-2015. The data was analyzed by using Kolmogorov-Smirnov Test and paired t-test.</p><p class="AbstractContent"><strong>Results:</strong> This study revealed that the changes of condyle position in Condylion to Vertical T line (horizontally) after orthodontic treatment is not significant (P&gt; 0.05) in Angle class I malocclusion. However, the difference of condyle position in Condylion to TC line (vertically) shows a significant difference (P&lt; 0.05) in Angle class I malocclusion.</p><p class="AbstractContent"><strong>Conclusion:</strong> The distance of the condyle from Condylion to TC line increased after fixed appliances orthodontic treatment for Angle class I malocclusion patients.</p>


Author(s):  
Kohinur Akther ◽  
Md Zakir Hossain

Aim: Objectives: To analyze variations in dental arch width in relation to oral habits.   Materials and Methods : Cross sectional  study was carried out Department of Orthodontics & Dentofacial Orthopedics of Dhaka Dental College & Hospital, Dhaka with a total number of 600 primary school children of 3-6 years ages of Bangladeshi population. Results: This study was a cross sectional study conducted among the 600 children with 3-6 years old prima- ry school children of Bangladeshi population. According to present study, bottle feeding causes significant reduction in maxillary intercanine width and mouth breathers show significant reduction of both arches. Conclusion: It was observed that the children who had used a bottle had a significant reduction in maxillary intercanine width. Breathing through mouth appeared to be associated with a reduction in the size of both arches. This was more significant in the maxillary intercanine , mandibular  intercanine and mandibular molar widths. Therefore to prevent malocclusions, the public should be informed of the harm caused by certain oral habits, the benefits of breast-feeding, and the need to correct bad habits at early life. Ban J Orthod & Dentofac Orthop, April 2016; Vol-7 (1-2), P.6-11


2013 ◽  
Vol 3 (2) ◽  
pp. 22-26
Author(s):  
Nabil M Al-Zubair

Objective: To assess the dental arch forms of Yemeni adult sample. Materials & Method: The Eucledian clustering method of analysis was utilized for the determination of dental arch form. A total of 398 study models were constructed and evaluated to do measurements for both arches using a modified sliding caliper gauge. Six dental cast measurements divided into three sagittal and three transverse measurements were utilized to represent the dental arch width and length measurements. Result: Narrow form is the most prevalent arch form (30.9%) followed by wide form (23.9%), their prominence appear more in females and the least prevalent arch form was the mid form (9.3%), while flat and pointed forms were in between 18.3% and 17.6% respectively. Conclusion: Five arch forms: narrow, wide, mid, pointed and flat were distinguished as unique forms for the dental arches, with the predominance of the narrow arch form were found among Yemeni adults.  


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