scholarly journals Angle Class I malocclusion treated with lower incisor extraction

2013 ◽  
Vol 18 (3) ◽  
pp. 150-158 ◽  
Author(s):  
Vanessa Leal Tavares Barbosa
Keyword(s):  
Class I ◽  
Dental Arch ◽  
Periodontal Health ◽  
Lower Incisor ◽  
Facial Profile ◽  
Anterior Crowding ◽  
Angle Class ◽  
Facial Esthetics ◽  
Dentofacial Orthopedics ◽  
Dental Crowding

In planning orthodontic cases that include extractions as an alternative to solve the problem of negative space discrepancy, the critical decision is to determine which teeth will be extracted. Several aspects must be considered, such as periodontal health, orthodontic mechanics, functional and esthetic alterations, and treatment stability. Despite controversies, extraction of teeth to solve dental crowding is a therapy that has been used for decades. Premolar extractions are the most common, but there are situations in which atypical extractions facilitate mechanics, preserve periodontal health and favor maintenance of the facial profile, which tends to unfavorably change due to facial changes with age. The extraction of a lower incisor, in selected cases, is an effective approach, and literature describes greater post-treatment stability when compared with premolar extractions. This article reports the clinical case of a patient with Angle Class I malocclusion and upper and lower anterior crowding, a balanced face and harmonious facial profile. The presence of gingival and bone recession limited large orthodontic movements. The molars and premolars were well occluded, and the discrepancy was mainly concentrated in the anterior region of the lower dental arch. The extraction of a lower incisor in the most ectopic position and with compromised periodontium, associated with interproximal stripping in the upper and lower arches, was the alternative of choice for this treatment, which restored function, providing improved periodontal health, maintained facial esthetics and allowed finishing with a stable and balanced occlusion. This case was presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO), as part of the requirements for obtaining the BBO Diplomate title.

scholarly journals Penatalaksanaan Kasus Impaksi Premolar, Ektopik Caninus dan Asimetri Rahang dengan Teknik Edgewise

2015 ◽  
Vol 1 (2) ◽  
pp. 134
Author(s):  
Novitria Zahrotul Malikha ◽  
Sri Suparwitri ◽  
Soekarsono Hardjono
Keyword(s):  
Female Patient ◽  
Primary Teeth ◽  
Class I ◽  
Permanent Teeth ◽  
Dental Arch ◽  
Midline Shift ◽  
Orthodontic Appliance ◽  
Angle Class ◽  
Dental Crowding ◽  
Fixed Orthodontic Appliance

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.

scholarly journals Treatment of Class I Malocclusion with a Lower Incisor Extraction: A Case Report

2018 ◽  
Vol 8 (1) ◽  
pp. 58-62
Author(s):  
Jitendra Kumar Sah ◽  
Praveen Mishra ◽  
Rabindra Man Shrestha ◽  
Alka Gupta
Keyword(s):  
Case Report ◽  
Treatment Time ◽  
Class I ◽  
Lateral Incisor ◽  
Midline Shift ◽  
Short Treatment ◽  
Lower Incisor ◽  
Facial Profile ◽  
Anterior Crowding ◽  
Short Treatment Time

A case report is presented with Class I malocclusion, moderate lower anterior crowding, maxillary dental midline shift with missing right lateral incisor. The adult orthodontic case was treated comprehensively with the extractions of lower lateral incisor, and upper and lower left first premolars as the balancing extraction. Remarkable improvements were achieved in facial profile, axial anterior inclination, esthetic smile and midline correction in short treatment time. Thus, it is concluded that lower incisor extraction in moderate lower anterior crowding and midline shift yield better and stable results with minimal intervention in select cases.

scholarly journals Class I malocclusion with anterior crossbite and severe crowding

2014 ◽  
Vol 19 (2) ◽  
pp. 115-125 ◽  
Author(s):  
Daltro Enéas Ritter
Keyword(s):  
Treatment Planning ◽  
Female Patient ◽  
Orthodontic Treatment ◽  
Class I ◽  
Diagnosis And Treatment ◽  
Facial Profile ◽  
Angle Class ◽  
Dentofacial Orthopedics ◽  
Functional Complaints

This article reports the orthodontic diagnosis and treatment planning carried out with a 14-year and 5-month-old female patient with esthetic and functional complaints. She presented an Angle Class I malocclusion, anterior crossbite and severe crowding in both maxillary and mandibular arches, in addition to a lightly concave straight facial profile. Orthodontic treatment did not require extraction. Crossbite was corrected by protrusion of upper teeth, which contributed to alignment and leveling of teeth, in addition to improving the patient's facial profile. The case was presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO) as a requirement for the BBO certification.

scholarly journals The influence of erupting lateral teeth on maxillary anterior crowding in two Angle Class I maloclussion cases with high and low angles

2016 ◽  
Vol 6 ◽  
pp. 105-112
Author(s):  
Hiroshi Ueda ◽  
Morio Masunaga ◽  
Cynthia Concepcion ◽  
Kazuo Tanne
Keyword(s):  
Class I ◽  
Occlusal Plane ◽  
Dental Arch ◽  
High Angle ◽  
Treatment Progress ◽  
Anterior Crowding ◽  
Skeletal Class ◽  
Second Stage ◽  
Angle Class ◽  
Frankfurt Horizontal

Two cases of anterior crowding, both Skeletal Class I and Angle Class I maloclussion, one being low angle and the other high angle respectively, respectively, were treated and evaluated to ascertain whether or not there is a relationship among disproportionate mesial axial angulation of the maxillary lateral teeth and the Frankfurt Horizontal- Functional Occlusal plane, therefore generating maxillary anterior crowding. Both cases were Japanese boys, the first one aged 9 years 10 months with chief complaint being anterior crowding and the second case aged 7 years and 8 months complaining of inadequate space for satisfying canine eruption. During and after the second stage of orthodontic treatment on both cases, several radiographic analysis were performed to assess treatment progress and retention; from these radiographs, it was noticed among other findings that in the high-angle case, the axial angulations of the maxillary lateral incisors were markedly smaller than in the low-angle case, thus indicating mesial tipping in the upper dental arch. This decreased mesial axial angulation of the lateral teeth observed at high angles may potentially cause maxillary space deficiency.

scholarly journals Treating dental crowding with mandibular incisor extraction in an Angle Class I patient

2015 ◽  
Vol 20 (3) ◽  
pp. 101-108 ◽  
Author(s):  
Gislana Braga Machado
Keyword(s):  
Orthodontic Treatment ◽  
Class I ◽  
Adolescent Female ◽  
Mandibular Incisor ◽  
Curve Of Spee ◽  
Angle Class ◽  
Dentofacial Orthopedics ◽  
Dental Crowding

Mandibular dental crowding often encourages patients to seek orthodontic treatment. The orthodontist should decide between protrusion of incisors or decrease in dental volume so as to achieve proper alignment and leveling. The present study reports the treatment of an Angle Class I malocclusion adolescent female brachyfacial patient with severe mandibular dental crowding, increased curve of Spee and deep overbite. The patient was treated with extraction of a mandibular incisor. This case was presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO) as a requirement for the title of certified by the BBO.

scholarly journals Treatment of a Class I Malocclusion with Severe Crowding using Passive Self-Ligating Brackets Passive Self-Ligating Brackets

2020 ◽  
Vol 27 (2) ◽  
Author(s):  
Agita Pramustika ◽  
◽  
Retno Widayati ◽  
Keyword(s):  
Orthodontic Treatment ◽  
Treatment Time ◽  
Class I ◽  
Dental Arch ◽  
Facial Profile ◽  
Skeletal Class ◽  
Orthodontic Patients ◽  
Treatment Objective ◽  
Smile Esthetics ◽  
Dental Crowding

Presently, dental crowding is the most common problem among orthodontic patients. The prevalence of crowding in the dental arch is significantly increased in modern dentitions, and it is the most common reason why patients pursue orthodontic treatment. Objective: To report an advanced bracket systems, namely self-ligating brackets, to increase the efficacy of orthodontic treatment especially in patients with severe crowding. Case Report: A 22-year-old female patient presented with severe crowding of the maxillary and mandibular arches. In the upper arch, both second premolars were palatally positioned; in the lower arch, the lower right canine was lingually positioned and the lower left second premolar was extracted. The patient had a balanced facial profile with a straight profile and skeletal Class I relationship. Treatment was initiated using passive self-ligating brackets followed by extraction of the upper second premolars and the lower right first premolar. Conclusion: The use of passive selfligating brackets proved to be effective and resulted in a significant improvement in the patient’s dental and smile esthetics. The active treatment time was 11 months; this resulted in successfully alleviating the crowding of the maxillary and mandibular arches and significant improvement in the occlusal relationship.

scholarly journals Is there a relationship between dental crowding and the size of the maxillary or mandibular apical base?

2019 ◽  
Vol 90 (2) ◽  
pp. 216-223 ◽  
Author(s):  
Aaron M. Crossley ◽  
Phillip M. Campbell ◽  
Larry P. Tadlock ◽  
Emet Schneiderman ◽  
Peter H. Buschang
Keyword(s):  
Class I ◽  
Cone Beam ◽  
Dental Arch ◽  
Tooth Size ◽  
Cross Sectional ◽  
Base Size ◽  
Total Cross Sectional Area ◽  
Maxilla And Mandible ◽  
Dental Crowding ◽  
Apical Base

ABSTRACT Objective: To determine whether apical base size is related to dental crowding. Materials and Methods: Digital scans of dental casts were taken of 75 untreated Class I adults to measure maxillary and mandibular tooth size, dental arch perimeters, intermolar widths, and intercanine widths. Cone beam computed tomography (CBCT) images were used to measure the apical base of the maxilla and mandible, including the total cross-sectional area, five basal arch perimeters and five basal arch widths. Principal components factor analyses were performed to evaluate the relationships between the apical base size and tooth-size-arch-length discrepancies (TSALD). Results: The dental arch and maxillary apical base measures were significantly larger in males than females. There were only limited sex differences in mandibular apical base size. The dental arch measurements were smaller in subjects with greater upper and lower TSALD. Maxillary and mandibular apical base dimensions were positively interrelated. Low-to-moderate correlations were found between the size of the maxillary apical base and TSALD. The size of the mandibular apical base was not related to upper or lower TSALD. Tooth size showed little to no relationship with TSALD. Conclusions: Although maxillary apical base size is related to maxillary and mandibular crowding in subjects with Class I malocclusion, mandibular apical base size is not.

scholarly journals Role of impacted teeth in dental arch crowding

2022 ◽  
Author(s):  
Mohamed Ali Sawas ◽  
Linah Essam Arabi ◽  
Samirah Hashim Jabir ◽  
Reem Nawaf AlSaadi ◽  
Mohammed Ahmed Al Nassir ◽  
...  
Keyword(s):  
Primary Tooth ◽  
Dental Arch ◽  
Third Molars ◽  
Impacted Teeth ◽  
Anterior Crowding ◽  
Gender And Age ◽  
Mandibular Third Molars ◽  
Dental Crowding ◽  
The Impact

Estimates show that the prevalence of mandibular dental anterior crowding is high and might be up to 40%. The etiology of the condition has been multifactorial and evidence regarding the impact of mandibular third molars is still controversial. We discussed the potential role that impacted teeth (particularly mandibular third molars) might have in developing dental arch crowding. Evidence from different original studies and reviews regarding the impact of lower third molars on dental crowding was controversial. However, most of these studies showed that the correlation between these events was insignificant and additional studies might be needed for further validation. We have also identified many factors that can lead to dental arch crowding among the relevant studies in the literature. These factors might include general factors (including gender and age), skeletal factors (including malocclusion and growth of jaws) and dental factors (including primary tooth loss and tooth crown size), all of which were extensively discussed in the current study. Accordingly, further attention should also be paid to studying these factors.

scholarly journals Evaluation of conformity of preformed orthodontic archwires and dental arch form

2019 ◽  
Vol 24 (1) ◽  
pp. 44-52
Author(s):  
Maheen Ahmed ◽  
Attiya Shaikh ◽  
Mubassar Fida
Keyword(s):  
Post Treatment ◽  
Class I ◽  
Dental Arch ◽  
Facial Profile ◽  
Arch Form ◽  
Mandibular Arch ◽  
The Mean ◽  
Dental Records ◽  
Orthodontic Archwires ◽  
Dental Arch Form

ABSTRACT Introduction: The alterations in the arch form during treatment are dictated by the dimensions of the archwires. Objective: This study aimed to determine the mean arch dimensions of a sample of Pakistani subjects and to evaluate the conformity of preformed archwires with mandibular arch form. Methods: The dental records of 1,500 adult subjects were evaluated. The mandibular casts of 42 subjects (males = females = 21) with balanced facial profile, Class I occlusion, ideal overjet and overbite were included. Brackets were bonded on all teeth. Arch dimensions were evaluated at canines, first premolars, second premolars, first and second molars, with digital vernier calipers. The arch widths at the level of aforementioned teeth were evaluated on the digitized archwires, using the mean arch depths of the subjects. Results: In males, the archwires were found to be wider at canines and premolars, and significantly narrower at first (p< 0.001, 95% CI = 2.03 - 5.74) and second molars (p< 0.001, 95% CI = 2.29 - 7.73) as compared to the arch dimensions of the mandibular casts. In females, the archwires were significantly narrower at canines (p< 0.001, 95% CI = 1.4 - 3.97), and first (p= 0.02, 95% CI = 0.402 - 4.41) and second molars (p< 0.001, 95% CI = 1.76 - 6.13). Conclusion: No single commercially available archwires evaluated in the present study conformed to the arch dimensions of our subjects. Utilization of the currently available archwires may result in unwarranted modification of arch form, which may lead to unstable post-treatment teeth position.

scholarly journals Retrospective Analysis of Different Bracket Systems used in the Treatment of Patients with Anterior Crowding: A Longitudinal Comparative Study

2016 ◽  
Vol 17 (8) ◽  
pp. 687-691
Author(s):  
Santosh Kumar Subudhi ◽  
Shipra Sepolia ◽  
Atul PS Kushwah ◽  
Amanpreet Singh Natt ◽  
Lipika Vashisht ◽  
...  
Keyword(s):  
Comparative Study ◽  
Retrospective Analysis ◽  
Root Resorption ◽  
T Test ◽  
Class I ◽  
Similar Amount ◽  
Time Duration ◽  
Anterior Crowding ◽  
Anterior Teeth ◽  
Angle Class

ABSTRACT Introduction New design of brackets have been introduced in the field of orthodontics in the recent past, and one of such advancement is the self-ligating brackets. These brackets are said to have less friction, with a shorter period of treatment. Better patient acceptance and good treatment results are some of the other advantages offered by self-ligating brackets. Hence, we comparatively evaluated root resorption of anterior teeth by self-ligating and conventional preadjusted brackets in cases of severe anterior crowding in class I patients. Materials and methods The present study was carried out at the department of orthodontics in a dental institution and included 140 patients that presented with the chief complaint of Angle class I malocclusion with crowding of more than 6 mm in the anterior tooth region. Two groups were formed with 70 patients in each group. In one group self-ligating brackets were used, while in other group conventional brackets were used. Malmgren's method was sued for evaluating the root resorption score ranging from 0 to 4. All the results were analyzed by the Statistical Package for the Social Sciences software. Chi-square test, nonpaired t-test, and paired t-test were used to evaluate the level of significance. Results The mean age of the patients in groups I and II was 13.92 and 13.81 years respectively. While comparing age of the patients and time duration of the treatment, no significant results were obtained. While comparing the root resorptions at various time intervals in groups I and II patients, significant results were obtained. While comparing the root resorptions in between groups I and II patients, no statistically significant results were obtained (p-value > 0.05). Conclusion Statistically similar amount of resorption is seen in patients in both the groups either on self-ligating brackets or on conventional preadjusted brackets during treatment of Angle class I patients with severe anterior crowding. Clinical significance In treating anterior crowding patients with Angle class I patients, choice of brackets has no effect on the amount of root resorption. How to cite this article Sepolia S, Kushwah APS, Natt AS, Vashisht L, Sahoo SK, Subudhi SK. Retrospective Analysis of Different Bracket Systems used in the Treatment of Patients with Anterior Crowding: A Longitudinal Comparative Study. J Contemp Dent Pract 2016;17(8):687-691.

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